Kropp Olsha
Science Lab

Open source processes and equipment for home semiconductor fabrication. No toxic chemicals. No cleanroom. No million-dollar equipment.

Research → Products
Open Source All designs, processes, and results published under permissive licenses. No patents.
Accessible No specialty chemicals or restricted materials. Consumer-available supplies only.
Safe No HF, no organic solvents. Water-based development. Grocery-store etchants.
About KOSL

Making chips
like making PCBs

KOSL is a Toronto-based open source project developing processes and equipment for home semiconductor fabrication. Our goal is to make chip-making as accessible as making PCBs.

We replace every toxic, restricted chemical in conventional fab with grocery-store alternatives. Egg white photoresist. Riboflavin photosensitizer. KOH etchant. Water developer. $525 starting setup.

Learn More →
$525
Starting setup
0
Toxic chemicals
100%
Open source
100μm
Feature target
Products

Products

Photoresists, materials, and automated fabrication systems.

Available Now

KOSL RiboResist

Water-based photoresist. PVA + riboflavin. Non-toxic, shelf-stable.

$29 CAD View →
Coming 2026

50MT500 Auto

Entry-level automated desktop fab. 50μm features, ~500 transistors.

$4,999 CAD Details →
Coming 2027

10MT5000 Auto

Turnkey desktop fab. HEPA-enclosed, maskless DLP, machine vision.

$3,999+ CAD Details →

Fully open source.

All process recipes, equipment designs, and experiment data published on GitHub under permissive licenses.

GitHub Contact