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Etching small patterns in Glass

Huygens Optics · 220.8K views · 2021-02-23 · 14:40

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Overview

Huygens Optics experiments with etching tiny patterns in glass, covering hydrofluoric acid risks, buffered oxide etch, photoresist and chromium masks, and laser-induced etching. It ends with attempts at microscopic Tesla valves.

On Hacker News

HN recommends it as a highly informative look at micro-etching glass and the smallest Tesla valves.

Recommended by 4 HN people across 3 months · HN mentions 2021–2024

Topics

Semiconductors & chip manufacturingChemistryMaterials science
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hydrofluoric acidtesla valvemicrofabricationopticslaser etching

What people said

samstave · 2024-03 · Recommendation

[LINK] Seems like it would work beautifully. What would be cool is to make a logic-gate-tesla-valve-micro-hydraulic computer? -- The video on micro etching glass with HF is highly informative on this post... he talks about etching tesla valves at the end... [LINK] <-- 30 microns long with channel width of 4 microns via etched glass... [LINK] [VIDEO] -- So I wonder what resolution would be possible via the 3d version. What would be really interesting to see with this method would be to make a blend of a spiral-screw with the tesla valves to climb or control vertical rates of flow. --- Since this process can print in ceramics, I wonder if the can effectively make a "super-conductive-nano-wire with spiraling interconnected bucky-ball-shaped lattice of particles"

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thrown_22 · 2022-08 · Recommendation

I read that, then I saw this guys youtube channel: [VIDEO] on the bright side I've found something I have not been desensitized to no matter how many time I've watched it.

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osamagirl69 · 2021-08 · Recommendation

There is an youtube video[1] by the excellent channel Huygens Optics which goes through trying to make a microscopic tesla valve. The valve does not work as a checkvalve (it is sufficiently small that surface tension and all that work differently than in a macroscopic system), but the author argues that it did satisfy the real goal of being a tesla valve -- which is to look sexy and high tech. [1] [VIDEO]

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Sources

Video by Huygens Optics, played through YouTube.

Data and selection notes

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