DIY Photolithography using 1980s Carl Zeiss S-Planar Lens (405nm)
In this video I demonstrate how I used a Carl Zeiss S-planar wafer stepper lens to do micron-size photolithography and used this pattern to etch a chromium layer. More info on how to etch chromium layers can be found in the second half of the following video: • Photomasks Explained (Contact and Projecti...

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Photomasks Explained (Contact and Projection): how to etch Thin Chromium Layers

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Carl Zeiss S-planar lens pt.1: general discussion

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Speedrunning 30yrs of lithography technology

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

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Electricity Does Not "Split" H₂O. And That's VERY Useful.

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Carl Zeiss S-planar lens pt.2: resolution explained

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#1 Making a Sputtering Magnetron

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Making a Monolithic Telescope Part 2: Machining Glass

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Making Spin-On-Dopant for DIY Semiconductor Fabrication

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Photolithography on Silicon with PCB Chemicals

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How to make precise sheet metal parts (photochemical machining)

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I Saved an Electron Microscope from the Trash

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“The Decision of the Century”: Choosing EUV Lithography

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Something is jamming GPS over Europe. Here's what we found

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The most beautiful formula not enough people understand

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Sourcing Uncommon Materials for Vacuum Tube Manufacture

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Can it be repaired? Dumpster Nitrogen Laser teardown Part 1

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Carl Zeiss S-planar lens pt.3: light collimation

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Restoring Leica Summicron 50mm f/2 Type III and optical polishing

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