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Antique 4x5 camera creates 20 micron photolithography masks: Super tiny tax form

Applied Science · tutorial · Watch on YouTube

Semiconductors & chip manufacturingChemistry

What it is

Ben Krasnow of Applied Science uses an antique 4x5 view camera to make high-resolution photolithography masks in a home shop. He photographs a poster-sized printout onto litho film to get features around 20 microns.

Why Hacker News recommends it

Cited as an accessible way to make lithographic masks at home, in threads about hobbyist chip fabrication.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2020, last 2025

What HN commenters said

  1. “There is a great video on creating lithographic masks on Ben Krasnow's Applied Science channel”

    Accessible photographic steps for creating lithographic masks

    bpye, 2025-12 · Recommendation · in “Z2 – Lithographically fabricated IC in a garage fab”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: photolithography, photomask, ben krasnow, view camera, microfabrication

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