<jesseg>
fascinating! so like silicon substrate, photo masking, etching, vapor plating, and electroplating? etc?
<diginet>
yeah, I've been specifically working on formulating an "open source" photoresist which is water-developable
<diginet>
(that can be exposed at freqs that are easy to acquire sources for)
<jesseg>
wow cool
<jesseg>
let me add this channel to my regular list so it joins when I start client :D
<jesseg>
by freqs, you mean like uv?
<jesseg>
rather than xrays?
X-Scale has quit [Ping timeout: 268 seconds]
X-Scale has joined #homecmos
<diginet>
yes
<diginet>
deep UV light sources are absurdly expensive
<jesseg>
like deeper than from a mercury lamp?
<jesseg>
a germicidal lamp
<jesseg>
aka eprom eraser :P
pie_ has quit [Ping timeout: 240 seconds]
pie_ has joined #homecmos
<diginet>
jesseg: yeah
<diginet>
high enough freqs start getting absorbed by air so you then need a vacuum
<jesseg>
fascinating
<jesseg>
well why do they use such short wavelength?
<jesseg>
I would have assumed it was so they could get finer details
<jesseg>
due to the wavelength of light
<jesseg>
diginet, I'd love to hear of your experiments and to learn what doesn't work about common photoresist that's sensitive to regular near-uv (like used on PCBs) and well just the whole enchilada!