Symfony Profiler

Security

Token

There is no security token.

Firewall

main Name

Security enabled

Stateless

Configuration

Key	Value
provider	security.user.provider.concrete.app_user_provider
context	main
entry_point	App\Security\KbinAuthenticator
user_checker	App\Security\UserChecker
access_denied_handler	(none)
access_denied_url	(none)
authenticators	[`"two_factor" "remember_me" "App\Security\KbinAuthenticator" "App\Security\FacebookAuthenticator" "App\Security\GoogleAuthenticator" "App\Security\GithubAuthenticator" "App\Security\KeycloakAuthenticator"`]

Listeners

Listener	Duration	Response
Symfony\Component\Security\Http\Firewall\ChannelListener {#723`-map: Symfony\Component\Security\Http\AccessMap {#722 …} -logger: Monolog\Logger {#783 …} -httpPort: 80 -httpsPort: 443`}	0.00 ms	(none)
Symfony\Component\Security\Http\Firewall\ContextListener {#706-tokenStorage: Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage {#1017 …} -sessionKey: "_security_main" -logger: Monolog\Logger {#783 …} -userProviders: Symfony\Component\DependencyInjection\Argument\RewindableGenerator {#705 …} -dispatcher: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher {#747 …} -registered: false -trustResolver: Scheb\TwoFactorBundle\Security\Authentication\AuthenticationTrustResolver {#780 …} -sessionTrackerEnabler: Symfony\Component\Security\Core\Authentication\Token\Storage\UsageTrackingTokenStorage::enableUsageTracking(): void {#703 …}}	11.23 ms	(none)
Symfony\Component\Security\Http\Firewall\AuthenticatorManagerListener {#584`-authenticatorManager: Symfony\Component\Security\Http\Authentication\AuthenticatorManager {#595 …}`}	0.00 ms	(none)
Scheb\TwoFactorBundle\Security\Http\Firewall\TwoFactorAccessListener {#582`-twoFactorFirewallConfig: Scheb\TwoFactorBundle\Security\TwoFactor\TwoFactorFirewallConfig {#842 …} -tokenStorage: Symfony\Component\Security\Core\Authentication\Token\Storage\UsageTrackingTokenStorage {#1018 …} -twoFactorAccessDecider: Scheb\TwoFactorBundle\Security\Authorization\TwoFactorAccessDecider {#581 …}`}	0.06 ms	(none)
Symfony\Component\Security\Http\Firewall\AccessListener {#579`-tokenStorage: Symfony\Component\Security\Core\Authentication\Token\Storage\UsageTrackingTokenStorage {#1018 …} -accessDecisionManager: Symfony\Component\Security\Core\Authorization\TraceableAccessDecisionManager {#937 …} -map: Symfony\Component\Security\Http\AccessMap {#722 …}`}	0.00 ms	(none)
Symfony\Component\Security\Http\Firewall\LogoutListener {#786`-tokenStorage: Symfony\Component\Security\Core\Authentication\Token\Storage\UsageTrackingTokenStorage {#1018 …} -options: [ "csrf_parameter" => "_csrf_token" "csrf_token_id" => "logout" "logout_path" => "app_logout" ] -httpUtils: Symfony\Component\Security\Http\HttpUtils {#841 …} -csrfTokenManager: Symfony\Component\Security\Csrf\CsrfTokenManager {#1015 …} -eventDispatcher: Symfony\Component\EventDispatcher\Debug\TraceableEventDispatcher {#747 …}`}	0.00 ms	(none)

Authenticators

No authenticators have been recorded. Check previous profiles on your authentication endpoint.

Access Decision

affirmative Strategy


"Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter"
"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
"Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter"
"Symfony\Component\Security\Core\Authorization\Voter\ExpressionVoter"
"App\Security\Voter\EntryCommentVoter"
"App\Security\Voter\EntryVoter"
"App\Security\Voter\MagazineVoter"
"App\Security\Voter\MessageThreadVoter"
"App\Security\Voter\MessageVoter"
"App\Security\Voter\NotificationVoter"
"App\Security\Voter\OAuth2UserConsentVoter"
"App\Security\Voter\PostCommentVoter"
"App\Security\Voter\PostVoter"
"App\Security\Voter\UserVoter"

#	Voter class
1	"Symfony\Component\Security\Core\Authorization\Voter\AuthenticatedVoter"
2	"Scheb\TwoFactorBundle\Security\Authorization\Voter\TwoFactorInProgressVoter"
3	"Symfony\Component\Security\Core\Authorization\Voter\RoleHierarchyVoter"
4	"Symfony\Component\Security\Core\Authorization\Voter\ExpressionVoter"
5	"App\Security\Voter\EntryCommentVoter"
6	"App\Security\Voter\EntryVoter"
7	"App\Security\Voter\MagazineVoter"
8	"App\Security\Voter\MessageThreadVoter"
9	"App\Security\Voter\MessageVoter"
10	"App\Security\Voter\NotificationVoter"
11	"App\Security\Voter\OAuth2UserConsentVoter"
12	"App\Security\Voter\PostCommentVoter"
13	"App\Security\Voter\PostVoter"
14	"App\Security\Voter\UserVoter"

Access decision log


null
"App\Security\Voter\UserVoter"
App\Entity\Entry {#2419
  +user: Proxies\__CG__\App\Entity\User {#1970 …}
  +magazine: App\Entity\Magazine {#265
    +icon: Proxies\__CG__\App\Entity\Image {#246 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
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    +isAdult: false
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    +lastActive: DateTime @1729413608 {#275
      date: 2024-10-20 10:40:08.0 +02:00
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    +moderators: Doctrine\ORM\PersistentCollection {#237 …}
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      date: 2024-09-25 09:01:54.0 +02:00
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    +apDeletedAt: null
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    +visibility: "visible             "
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      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
  +image: null
  +domain: Proxies\__CG__\App\Entity\Domain {#1915 …}
  +slug: "At-what-size-of-transistor-does-semiconductor-manufacturing-become-practical"
  +title: "At what size of transistor does semiconductor manufacturing become practical for independent manufacture?"
  +url: null
  +body: """
    Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
    \n
    ---\n
    \n
    I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
    """
  +type: "article"
  +lang: "en"
  +isOc: false
  +hasEmbed: false
  +commentCount: 10
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  +score: 0
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    date: 2023-10-19 03:55:35.0 +02:00
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  +ip: null
  +adaAmount: 0
  +tags: null
  +mentions: null
  +comments: Doctrine\ORM\PersistentCollection {#1884 …}
  +votes: Doctrine\ORM\PersistentCollection {#1973 …}
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  +favourites: Doctrine\ORM\PersistentCollection {#1927 …}
  +notifications: Doctrine\ORM\PersistentCollection {#2442 …}
  +badges: Doctrine\ORM\PersistentCollection {#2440 …}
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  -id: 6125
  -titleTs: "'becom':9 'independ':12 'manufactur':8,13 'practic':10 'semiconductor':7 'size':3 'transistor':5"
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  +cross: false
  +upVotes: 0
  +downVotes: 0
  +ranking: 1697688461
  +visibility: "visible             "
  +apId: "https://lemm.ee/post/11865157"
  +editedAt: null
  +createdAt: DateTimeImmutable @1697602061 {#1793
    date: 2023-10-18 06:07:41.0 +02:00
  }
}
"App\Security\Voter\UserVoter"
App\Entity\Entry {#2419
  +user: Proxies\__CG__\App\Entity\User {#1970 …}
  +magazine: App\Entity\Magazine {#265
    +icon: Proxies\__CG__\App\Entity\Image {#246 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
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    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#275
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#237 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#233 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#222 …}
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    +awards: Doctrine\ORM\PersistentCollection {#1346 …}
    +categories: Doctrine\ORM\PersistentCollection {#1823 …}
    -id: 11
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    +apInboxUrl: "https://discuss.tchncs.de/inbox"
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    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
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    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#269
      date: 2024-09-25 09:01:54.0 +02:00
    }
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    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#271
      date: 2023-06-19 05:13:29.0 +02:00
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  }
  +image: null
  +domain: Proxies\__CG__\App\Entity\Domain {#1915 …}
  +slug: "At-what-size-of-transistor-does-semiconductor-manufacturing-become-practical"
  +title: "At what size of transistor does semiconductor manufacturing become practical for independent manufacture?"
  +url: null
  +body: """
    Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
    \n
    ---\n
    \n
    I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
    """
  +type: "article"
  +lang: "en"
  +isOc: false
  +hasEmbed: false
  +commentCount: 10
  +favouriteCount: 30
  +score: 0
  +isAdult: false
  +sticky: false
  +lastActive: DateTime @1697680535 {#2414
    date: 2023-10-19 03:55:35.0 +02:00
  }
  +ip: null
  +adaAmount: 0
  +tags: null
  +mentions: null
  +comments: Doctrine\ORM\PersistentCollection {#1884 …}
  +votes: Doctrine\ORM\PersistentCollection {#1973 …}
  +reports: Doctrine\ORM\PersistentCollection {#1959 …}
  +favourites: Doctrine\ORM\PersistentCollection {#1927 …}
  +notifications: Doctrine\ORM\PersistentCollection {#2442 …}
  +badges: Doctrine\ORM\PersistentCollection {#2440 …}
  +children: []
  -id: 6125
  -titleTs: "'becom':9 'independ':12 'manufactur':8,13 'practic':10 'semiconductor':7 'size':3 'transistor':5"
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  +cross: false
  +upVotes: 0
  +downVotes: 0
  +ranking: 1697688461
  +visibility: "visible             "
  +apId: "https://lemm.ee/post/11865157"
  +editedAt: null
  +createdAt: DateTimeImmutable @1697602061 {#1793
    date: 2023-10-18 06:07:41.0 +02:00
  }
}
"App\Security\Voter\UserVoter"
App\Entity\Entry {#2419
  +user: Proxies\__CG__\App\Entity\User {#1970 …}
  +magazine: App\Entity\Magazine {#265
    +icon: Proxies\__CG__\App\Entity\Image {#246 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#275
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#237 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#233 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#222 …}
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      date: 2024-09-25 09:01:54.0 +02:00
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      date: 2023-06-19 05:13:29.0 +02:00
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  }
  +image: null
  +domain: Proxies\__CG__\App\Entity\Domain {#1915 …}
  +slug: "At-what-size-of-transistor-does-semiconductor-manufacturing-become-practical"
  +title: "At what size of transistor does semiconductor manufacturing become practical for independent manufacture?"
  +url: null
  +body: """
    Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
    \n
    ---\n
    \n
    I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
    """
  +type: "article"
  +lang: "en"
  +isOc: false
  +hasEmbed: false
  +commentCount: 10
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    date: 2023-10-19 03:55:35.0 +02:00
  }
  +ip: null
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  +comments: Doctrine\ORM\PersistentCollection {#1884 …}
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  -id: 6125
  -titleTs: "'becom':9 'independ':12 'manufactur':8,13 'practic':10 'semiconductor':7 'size':3 'transistor':5"
  -bodyTs: "'/en)':11 'abl':57 'also':80 'asml':8,78 'becom':44 'capabl':15 'communiti':105 'compani':4,76 'cost':61 'creation':19 'current':1 'devic':32 'even':47 'extrem':81 'feesibl':48 'independ':53 'know':114 'lend':92 'let':112 'like':77 'm':35,97 'machin':22,64 'manufactur':43,70 'modern':30 'must':55 'necessari':16,68 'one':3,54 'organ':51 'otherwis':88 'photolithographi':21 'picki':82 'place':124 'pleas':111 'point':40 'post':110 'practic':45 'presum':73 'product':28 'put':126 'regul':86 'resourc':67 'right':104 'semiconductor':31,42 'small':50 'sort':108 'suffici':25 'suitabl':123 'sure':99 'surpass':59 'technolog':14,94 'will':83 'wonder':36 'world':7 'www.asml.com':10 'www.asml.com/en)':9"
  +cross: false
  +upVotes: 0
  +downVotes: 0
  +ranking: 1697688461
  +visibility: "visible             "
  +apId: "https://lemm.ee/post/11865157"
  +editedAt: null
  +createdAt: DateTimeImmutable @1697602061 {#1793
    date: 2023-10-18 06:07:41.0 +02:00
  }
}
"App\Security\Voter\UserVoter"
null
"App\Security\Voter\UserVoter"
App\Entity\EntryComment {#4027
  +user: App\Entity\User {#3976 …}
  +entry: App\Entity\Entry {#2419
    +user: Proxies\__CG__\App\Entity\User {#1970 …}
    +magazine: App\Entity\Magazine {#265
      +icon: Proxies\__CG__\App\Entity\Image {#246 …}
      +name: "askelectronics@discuss.tchncs.de"
      +title: "askelectronics"
      +description: """
        **For questions about component-level electronic circuits, tools and equipment.**\n
        \n
        Rules\n
        -----\n
        \n
        1: Be nice.\n
        \n
        2: Be on-topic (eg: *Electronic*, not *electrical*).\n
        \n
        3: No commercial stuff, buying, selling or valuations.\n
        \n
        4: Be safe.\n
        \n
        ---
        """
      +rules: null
      +subscriptionsCount: 1
      +entryCount: 154
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      +postCount: 1
      +postCommentCount: 4
      +isAdult: false
      +customCss: null
      +lastActive: DateTime @1729413608 {#275
        date: 2024-10-20 10:40:08.0 +02:00
      }
      +markedForDeletionAt: null
      +tags: null
      +moderators: Doctrine\ORM\PersistentCollection {#237 …}
      +ownershipRequests: Doctrine\ORM\PersistentCollection {#233 …}
      +moderatorRequests: Doctrine\ORM\PersistentCollection {#222 …}
      +entries: Doctrine\ORM\PersistentCollection {#180 …}
      +posts: Doctrine\ORM\PersistentCollection {#138 …}
      +subscriptions: Doctrine\ORM\PersistentCollection {#200 …}
      +bans: Doctrine\ORM\PersistentCollection {#117 …}
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      +awards: Doctrine\ORM\PersistentCollection {#1346 …}
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      Realistically, you can’t really compete in a market where ASML is the monopolist. Not because ASML is an ass, but simply because building just a single factory costs billions. Intel regularly invests 10 billion or more in just a single factory that doesn’t even have all the necessary tools in-house to produce a chip end to end.\n
      \n
      Smaller manufacturers usually serve the long tail, that is rather old process nodes for use cases where bleeding edge performance isn’t needed. Bosch for example had its own manufacturing branch.
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    Also bleeding-edge processes mean smaller, thinner gates. That’s what gives them the fast switching speeds, but it reduces the max allowable voltage. For parts that need to handle more than 1.8V or so a modern 5nm process will just end up using bigger gates than the process is optimized for. May as well go with an older process (bigger minimum gate size) that’s better suited to switching the voltage needed. For Bosch (automotive parts, power tools, etc) they’re making a lot of parts with really big output transistors (switching 14V, 48V, etc) and not super high-performance processors.\n
    \n
    The big disadvantage with particularly old processes is that they used smaller wafers. So fewer chips per wafer processed, meaning lower overall yields and higher price/chip. The switch from 200mm wafers to 300mm in 1999 meant the wafer area increased by a factor of 2.25! 300mm wafers also required fully-automated factories due to the weight of a wafer carrier (a front opening wafer pod, or FOUP, is 7-9kg when loaded with 25 wafers), which save on labor costs. So processes older than 1999 (around the 180nm node) are sometimes not worth it even for power electronics.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      Realistically, you can’t really compete in a market where ASML is the monopolist. Not because ASML is an ass, but simply because building just a single factory costs billions. Intel regularly invests 10 billion or more in just a single factory that doesn’t even have all the necessary tools in-house to produce a chip end to end.\n
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    Also bleeding-edge processes mean smaller, thinner gates. That’s what gives them the fast switching speeds, but it reduces the max allowable voltage. For parts that need to handle more than 1.8V or so a modern 5nm process will just end up using bigger gates than the process is optimized for. May as well go with an older process (bigger minimum gate size) that’s better suited to switching the voltage needed. For Bosch (automotive parts, power tools, etc) they’re making a lot of parts with really big output transistors (switching 14V, 48V, etc) and not super high-performance processors.\n
    \n
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    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      Realistically, you can’t really compete in a market where ASML is the monopolist. Not because ASML is an ass, but simply because building just a single factory costs billions. Intel regularly invests 10 billion or more in just a single factory that doesn’t even have all the necessary tools in-house to produce a chip end to end.\n
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      Smaller manufacturers usually serve the long tail, that is rather old process nodes for use cases where bleeding edge performance isn’t needed. Bosch for example had its own manufacturing branch.
      """
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    Also bleeding-edge processes mean smaller, thinner gates. That’s what gives them the fast switching speeds, but it reduces the max allowable voltage. For parts that need to handle more than 1.8V or so a modern 5nm process will just end up using bigger gates than the process is optimized for. May as well go with an older process (bigger minimum gate size) that’s better suited to switching the voltage needed. For Bosch (automotive parts, power tools, etc) they’re making a lot of parts with really big output transistors (switching 14V, 48V, etc) and not super high-performance processors.\n
    \n
    The big disadvantage with particularly old processes is that they used smaller wafers. So fewer chips per wafer processed, meaning lower overall yields and higher price/chip. The switch from 200mm wafers to 300mm in 1999 meant the wafer area increased by a factor of 2.25! 300mm wafers also required fully-automated factories due to the weight of a wafer carrier (a front opening wafer pod, or FOUP, is 7-9kg when loaded with 25 wafers), which save on labor costs. So processes older than 1999 (around the 180nm node) are sometimes not worth it even for power electronics.
    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    CMOS silicon logic can be chemically “printed” using [photolithography](https://en.wikipedia.org/wiki/Photolithography) and commercially available mercury lamps. From the wikipedia article, if I read between the lines those are good down to feature sizes of about 1 micron (1.0µM or 1000nm), limited of course by the accuracy of your wafer setups between processes and the printing of your lithography plates. this is the process used to produce the Intel 80486 which fit 1 million transistors on a chip. seems that laser lithography using KrF lasers can be good down to much smaller but your litho plates become the limiting factor.\n
    \n
    so, conservatively- 1µm features would be attainable for a sort of “home brew” startup with little to no venture funding but the correct industrial knowledge. with more funding though i’d guess older laser lithography machines would be attainable on the used market and potentially usable down to 0.4µm or smaller.
    """
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    +url: null
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    CMOS silicon logic can be chemically “printed” using [photolithography](https://en.wikipedia.org/wiki/Photolithography) and commercially available mercury lamps. From the wikipedia article, if I read between the lines those are good down to feature sizes of about 1 micron (1.0µM or 1000nm), limited of course by the accuracy of your wafer setups between processes and the printing of your lithography plates. this is the process used to produce the Intel 80486 which fit 1 million transistors on a chip. seems that laser lithography using KrF lasers can be good down to much smaller but your litho plates become the limiting factor.\n
    \n
    so, conservatively- 1µm features would be attainable for a sort of “home brew” startup with little to no venture funding but the correct industrial knowledge. with more funding though i’d guess older laser lithography machines would be attainable on the used market and potentially usable down to 0.4µm or smaller.
    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    CMOS silicon logic can be chemically “printed” using [photolithography](https://en.wikipedia.org/wiki/Photolithography) and commercially available mercury lamps. From the wikipedia article, if I read between the lines those are good down to feature sizes of about 1 micron (1.0µM or 1000nm), limited of course by the accuracy of your wafer setups between processes and the printing of your lithography plates. this is the process used to produce the Intel 80486 which fit 1 million transistors on a chip. seems that laser lithography using KrF lasers can be good down to much smaller but your litho plates become the limiting factor.\n
    \n
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
    \n
    A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
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    A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
    \n
    A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
      \n
      A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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    > which I found rather neat\n
    \n
    I concur, what a great post. Special software for the layout? *Please! I’ve got a photoshop license, it’ll have to do.*\n
    \n
    The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
      \n
      A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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    > which I found rather neat\n
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    I concur, what a great post. Special software for the layout? *Please! I’ve got a photoshop license, it’ll have to do.*\n
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    The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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      There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
      \n
      A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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    > which I found rather neat\n
    \n
    I concur, what a great post. Special software for the layout? *Please! I’ve got a photoshop license, it’ll have to do.*\n
    \n
    The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
    """
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
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      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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        There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
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        A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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      > which I found rather neat\n
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      The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
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      """
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        There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
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      > which I found rather neat\n
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      The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
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      ---\n
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        There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
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        A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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      > which I found rather neat\n
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      The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
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      """
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          There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
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          A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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        > which I found rather neat\n
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        The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
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  +body: "We’ve had open-source chip design software since the 1980s. [Magic VLSI](http://opencircuitdesign.com/magic/), for example. There are [quite a few OSS tools](https://anysilicon.com/the-ultimate-guide-to-open-source-eda-tools/) for various parts of the chip design process."
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
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      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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          There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
          \n
          A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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        > which I found rather neat\n
        \n
        I concur, what a great post. Special software for the layout? *Please! I’ve got a photoshop license, it’ll have to do.*\n
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        The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
        """
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    +body: "And once small-scale semiconductor manufacturing becomes easier and more feasible, we will have "OpenChipCAD" or something like that."
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  +body: "We’ve had open-source chip design software since the 1980s. [Magic VLSI](http://opencircuitdesign.com/magic/), for example. There are [quite a few OSS tools](https://anysilicon.com/the-ultimate-guide-to-open-source-eda-tools/) for various parts of the chip design process."
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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          There is an answer but you’ll probably only manage to get it by going through semiconductor devices history and determining the hardware required at each improvement step, and the cost and acquirability of that hardware. This would take hours - potentially days - of research.\n
          \n
          A quick search yielded [this blog post](http://sam.zeloof.xyz/second-ic/) though of someone attempting - and managing - production of a basic 1200-transistors semiconductor device in their garage, which I found rather neat. That’s with no cleanroom, and with chemicals the purity of which are far removed from the ones the industry uses.
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        > which I found rather neat\n
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        I concur, what a great post. Special software for the layout? *Please! I’ve got a photoshop license, it’ll have to do.*\n
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        The rest of us get our calculators at staples, this guy buys the components at the chemical supply store.
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    +body: "And once small-scale semiconductor manufacturing becomes easier and more feasible, we will have "OpenChipCAD" or something like that."
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  +body: "We’ve had open-source chip design software since the 1980s. [Magic VLSI](http://opencircuitdesign.com/magic/), for example. There are [quite a few OSS tools](https://anysilicon.com/the-ultimate-guide-to-open-source-eda-tools/) for various parts of the chip design process."
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    Sam Zeloof ([sam.zeloof.xyz](http://sam.zeloof.xyz/)) has been working in the area of DIY semiconductor fabrication, and has successfully fabricated working ICs (from 6 - 100 transistors). He’s done an incredible job at reaching ~1970’s technology levels in a home lab.\n
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
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      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    Sam Zeloof ([sam.zeloof.xyz](http://sam.zeloof.xyz/)) has been working in the area of DIY semiconductor fabrication, and has successfully fabricated working ICs (from 6 - 100 transistors). He’s done an incredible job at reaching ~1970’s technology levels in a home lab.\n
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    Another example of DIY fabrication: [hackaday.com/…/jeri-makes-integrated-circuits/](https://hackaday.com/2010/03/10/jeri-makes-integrated-circuits/) Jeri Ellsworth made her own silicon inverter.\n
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      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    Theres plenty of smaller, lower volume silicon fabs doing larger scale work, like Cmos 1micron and some doing sub micron down to what was cutting edge ~15 years ago.\n
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    Honetly kinda crazy that only one manufacturer can do the current modern stuff, but barely anything other than high end CPU need to be that small.
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        **For questions about component-level electronic circuits, tools and equipment.**\n
        \n
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    +title: "At what size of transistor does semiconductor manufacturing become practical for independent manufacture?"
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    +body: """
      Currently, only one company in the world – [ASML](https://www.asml.com/en) – has the technological capability necessary for the creation of photolithography machines which are sufficient for the production of modern semiconductor devices. What I’m wondering is at what point does semiconductor manufacturing become practical, or even feesible for small organizations, or independents? One must be able to surpass the cost of the machines, and the resources necessary to manufacture them. I presume that a company like ASML is also extremely picky – willfully, or by regulation, or otherwise – about who they lend their technology to.\n
      \n
      ---\n
      \n
      I’m not sure if this is the right community for this sort of post. Please let me know if not, and if there is a more suitable place to put it.
      """
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    Theres plenty of smaller, lower volume silicon fabs doing larger scale work, like Cmos 1micron and some doing sub micron down to what was cutting edge ~15 years ago.\n
    \n
    Honetly kinda crazy that only one manufacturer can do the current modern stuff, but barely anything other than high end CPU need to be that small.
    """
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"App\Security\Voter\UserVoter"
App\Entity\Magazine {#265
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    **For questions about component-level electronic circuits, tools and equipment.**\n
    \n
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"App\Security\Voter\UserVoter"

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