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Atomic Semi Tech Stack

Custom semiconductor fab equipment and process development

Semiconductor Manufacturing San Francisco 51–200 employees Founded 2023 Privately Held

Atomic Semi is building an in-house semiconductor fabrication operation from the ground up, designing and manufacturing their own fab equipment rather than licensing it. The tech stack—spanning CAD tools (Solidworks, Onshape, Fusion 360), simulation (COMSOL), embedded systems (Rust, C/C++, RTOS), and CNC control (Fanac, Siemens, Mazak)—reveals a capital-intensive, hardware-first engineering culture. Heavy hiring in mid-level and intern engineering roles signals rapid team scaling to execute equipment builds in parallel with process development.

Tech Stack 38 technologies

Core StackConfluence QuickBooks Solidworks React TypeScript Siemens Rust Python Linux Figma C++ Linear Notion Excel Ramp Onshape KiCad Altium COMSOL WebSockets WebGL LTspice Fusion 360 Fanuc Mazak C/C++ WebAssembly C RTOS GPIO+7 more

AdoptingFigma Blender KiCad

What Atomic Semi Is Building

◆Challenges

Rebuilding chip fabrication process
Building a small, fast semiconductor fab
Improving equipment reliability
Maximizing mtbf
Reducing equipment downtime
Minimizing equipment downtime
Scaling build capacity
Improving robot efficiency
Accelerating semiconductor fabrication process
Ensuring uninterrupted operations

▲Active Projects

Designing semiconductor fabrication equipment
Semiconductor fab equipment and subsystems for lithography, motion, and metrology
Standing up new processes in ramp, erp systems
Experiment design and execution of new semiconductor and thin-film fabrication methods
Deposition tool development
Semiconductor fab development
Lithography systems development
Real-time collaborative systems
Precision small motion and manipulation
Rebuilding chip fabrication process

Hiring Activity

Accelerating50 roles · 25 in 30d

Department

Engineering

38

Manufacturing

5

Ops

5

HR

2

Operations

1

Seniority

Mid

31

Intern

10

Senior

8

Junior

1

Manager

1

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About Atomic Semi

Atomic Semi designs and manufactures semiconductor fabrication equipment for an internal fab operation, founded in 2023 and based in San Francisco. Rather than procuring equipment from established vendors, the company is building tools in-house—including lithography systems, deposition tools, and metrology subsystems—alongside the processes they enable. Current focus spans precision motion systems, thin-film fabrication methods, and fab automation. The organization is structured around engineering (majority), manufacturing, and operations, with active hiring across all three areas.

HeadquartersSan Francisco

Company Size51–200 employees

Founded2023

Hiring MarketsUnited States

Frequently Asked Questions

What tools does Atomic Semi use for semiconductor design?

CAD tools include Solidworks, Onshape, and Fusion 360; simulation via COMSOL; electronics design via KiCad and Altium; and circuit simulation via LTspice. Figma, Blender, and KiCad are currently being adopted.

What is Atomic Semi working on?

Active projects include designing lithography systems, deposition tools, and motion control subsystems; standing up ERP and ramp systems; and executing experiments on new semiconductor and thin-film fabrication processes. Improving equipment reliability and reducing downtime are cited pain points.