aid: atomic-semi
name: Atomic Semi
description: 'Atomic Semi is a semiconductor company founded in 2023 by Sam Zeloof
  and Jim Keller, now operating publicly as fab2 (atomicsemi.com redirects to fab2.com).
  It designs and manufactures semiconductor fabrication equipment and the fabs that
  house it — pumps, valves, sensors, actuators, chambers, heaters, gas lines and robots
  — with the stated goal of mass-producing small, software-defined chip fabs, a "fab
  fab". It runs a 120K sq ft chip fab in Austin TX (HQ), a 30K sq ft fab fab in Lockhart
  TX, and the original 25K sq ft garage fab in San Francisco. Its one software product,
  Studio (formerly Atomic Studio), is an in-browser collaborative EDA for schematic
  capture, layout and simulation, used internally rather than sold as a developer platform.
  The company publishes no API, SDK, developer portal or machine-readable specification.'
url: https://raw.githubusercontent.com/api-evangelist/atomic-semi/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-06'
modified: '2026-08-06'
tags:
- Company
- Semiconductors
- Hardware
- Manufacturing
- Electronic Design Automation
- Chip Design
- Deep Tech
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/atomic-semi-domain-security.yml
- type: Website
  url: https://fab2.com/
- type: About
  url: https://fab2.com/about/
- type: Careers
  url: https://jobs.ashbyhq.com/fab2
- type: SecondaryMarket
  url: https://www.hiive.com/securities/atomic-semi-stock
x-enrichment:
  date: '2026-08-06'
  status: minimal
  artifacts_added: 1
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: >-
    atomicsemi.com 301s to fab2.com, a three-page marketing site (root, /about/,
    /careers/) whose own sitemap.xml lists no developer surface at all; the company
    makes chip-fab hardware, its one software product (the Studio in-browser EDA) is
    used internally rather than sold, and its GitHub org holds only forks of upstream
    open-source EDA tools with no first-party code.
  evidence:
  - url: https://atomicsemi.com/
    status: 301
  - url: https://fab2.com/sitemap.xml
    status: 200
  - url: https://fab2.com/openapi.json
    status: 404
  - url: https://fab2.com/llms.txt
    status: 404
  - url: https://fab2.com/.well-known/agent-card.json
    status: 404
  - url: https://api.github.com/orgs/AtomicSemi/repos
    status: 200
  checked: '2026-08-06'