| azonenberg | horizontally: contact litho works fine as long as you dont need <200um resolutions | 01:34 |
|---|---|---|
| azonenberg | Or if you're using commercially made film masks at 20um resolution (laserlab.com is a good vendor) and dont care about precise alignment relative to existing features | 01:35 |
| horizontally | azonenberg: is this from experience? | 03:29 |
| azonenberg | Contact litho in real fab goes a lot smaller | 03:29 |
| azonenberg | But it requires more precise masks and usually you care about alignment | 03:29 |
| azonenberg | but on a cheap printer 200um resolution is easily doable with no optics using contact | 03:29 |
| horizontally | so why do you care about all this stuff being so small again? | 03:30 |
| horizontally | MEMS? why are you so interested in a comb drive? | 03:30 |
| azonenberg | It's the "hello world" of MEMS | 03:30 |
| horizontally | i don't quite even get how it works | 03:30 |
| azonenberg | as in a fairly simple device | 03:30 |
| horizontally | really hmm | 03:30 |
| azonenberg | same as a ring oscillator for CMOS (though i'd probably do a single transistor, then a single gate to start off) | 03:30 |
| kristianpaul | single transistor, thats a *must* :-) | 03:44 |
| kristianpaul | and then single LED :-D | 03:44 |
| azonenberg | LED is more tricky | 03:45 |
| azonenberg | that will need a III-IV semiconductor problaby | 03:45 |
| azonenberg | at least if i want it to emit in the visible range | 03:45 |
| azonenberg | IR i could probably do on silicon | 03:45 |
| azonenberg | i need to learn more about bandgaps etc | 03:45 |
| kristianpaul | sure, just kidding | 03:46 |
| azonenberg | And i'm serious :p | 03:46 |
| kristianpaul | :-) | 03:46 |
| azonenberg | i was thinking of making my own phototransistor too | 03:46 |
| azonenberg | that shouldnt be too tricky | 03:46 |
| azonenberg | large NPN device | 03:46 |
| azonenberg | with a huge exposed junction | 03:46 |
| horizontally | i wish my roommates were that motivated | 05:13 |
| azonenberg | horizontally: i wish mine were :p | 05:13 |
| horizontally | i got some dumbass psychology majors who don't know what they want to do in life | 05:13 |
| azonenberg | Ok | 05:13 |
| horizontally | Hokay | 05:13 |
| azonenberg | they're not that bad, they're all CS or CSYS majors | 05:13 |
| azonenberg | except for one who's an aeronautical engineer | 05:14 |
| horizontally | oh cool | 05:14 |
| azonenberg | and is, despite that, a competent coder :p | 05:14 |
| horizontally | what's CSYS? | 05:14 |
| azonenberg | computer systems engineering | 05:14 |
| horizontally | oh okay i read that as CS YS | 05:14 |
| horizontally | not C SYS | 05:14 |
| azonenberg | yeah lol | 05:14 |
| --- Sat Nov 19 2011 | 00:00 | |
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