--- Log opened Fri Dec 22 00:00:06 2023
00:01 < hprmbridge> nmz787> first order of business... find good locations for each reagent input (holes) that are compatible with: A) some sort of o-ring gasket like material (i.e. reasonable thicknesses/widths of such a gasket) and B) compatible with I/O pads for the electrical connections (i.e. not getting them wet with salty fluids)
00:02 < hprmbridge> nmz787> looks like I'm starting with these dimensions for safety:
00:02 < hprmbridge> nmz787> efabless chipIgnite
00:02 < hprmbridge> nmz787> $9750, 100 QFN chips, each 2.92 x 3.52mm (10.2784 mm^2), user-area only ~10 mm^2 though
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07:20 < hprmbridge> jay_dugger> Thank you, Fenn.
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09:10 < ike8> NDE research is fascinating. Consciousness might actually be immaterial.
09:11  * L29Ah throws rotten qualia at ike8
09:11 < ike8> what on earth is a qualia
09:12 < L29Ah> what on earth is a consciousness
09:15 < ike8> the observer maybe?
09:41 < hprmbridge> nmz787> Jay-Dugger Unfortunately the last I heard, the bridge bot doesn't work for adding reply-to context
10:18 < docl> "just when you think they're going to start dribbling one of 'em says, incidentally, putting a thirty-foot parabolic reflector on a high place to shoot the rays of the sun at an enemy's ships would be a very interesting demonstration of optical principles"
10:18 < fenn> a very uninteresting demonstration of etendue
10:19 < docl> yeah true
10:20 < docl> that was Pratchett poking fun at philosophers in Small Gods
10:31 < kanzure> "Autonomous chemical research with large language models" https://www.nature.com/articles/s41586-023-06792-0
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12:00 < muurkha> nmz787: what silicon projects have you taped out?  is efabless chipIgnite using Skywater?
12:01 < muurkha> you might be able to handle salty fluids on I/O pads by gold-plating the I/O pads
12:32 < hprmbridge> nmz787> Maybe 3 or 4 intel unnamed-node testchips. I guess it'd be 16A or something, if we're to assume the 20A, 18A naming will continue with some linear trend
12:33 < hprmbridge> nmz787> Yeah efabless chipignite uses skywater, either 180 or 130nm, I can't recall. They may also have multiple offerings
12:34 < hprmbridge> nmz787> Yeah gold or platinum is what I'm currently considering, but not necessarily thinking plating IO pads as much as using gold/noble throughout the wet part. My design has multiple wet layers that are embedded with wires
12:35 < hprmbridge> nmz787> I should say I didn't actually tape out entire testchips, rather just a portion. But I owned full-stack designs, which is not common for chip designers. Especially when drawing everything, not just placing pre-made cells (layout blocks).
13:32 < muurkha> platinum would work but has more catalytic activity I think?
13:33 < muurkha> you weren't using Skywater's standard cell library?
13:34 < hprmbridge> nmz787> I make my own cell library, actually (well ok I'm on a team that makes a certain library)
13:34 < hprmbridge> nmz787> Platinum is common enough in electrophoresis rigs in mol bio labs
13:36 < muurkha> maybe the reactions it catalyzes aren't of concern
13:39 < muurkha> I think owning full-stack designs used to be common for chip designers, like from the 01960s through the 01990s
13:40 < muurkha> but dicing got dicey; I think the smallest die you can buy anywhere is 3mm²
13:40 < muurkha> but at 10nm, 3mm² is 90 billion square lambdas, which is a lot of space for one person to cover
13:41 < muurkha> like, potentially 900 million transistors
13:41 < muurkha> and, in the Z dimension, the costs of making the mask set have gone through the roof, as processes acquire more and more layers
13:43 < muurkha> this means that, at a given level of multi-project-wafering, a chip designed by a single person will cost almost as much to design and make as a chip designed by dozens of people
13:43 < muurkha> uh, that's an error, let me correct that
13:44 < muurkha> this means that, at a low level of multi-project-wafering, a chip designed by a single person will cost almost as much to design and make as a chip designed by dozens of people; and at any given level of MPWing, the costs per design of making the masks are much higher
14:14 < hprmbridge> nmz787> At intel no designer has made masks since probably 50 years ago
14:15 < hprmbridge> nmz787> That's it's own division of the company (IMO, Intel Mask Operations)
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16:36 < hprmbridge> kanzure> "A chemical signal in human female tears lowers aggression in males" https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002442
16:36 < hprmbridge> kanzure> add this to pepper spray?
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16:54 < docl> does the venturi effect work on plasma? say, solar wind? I'm picturing a plasma thruster that takes in solar wind and shoots it out after increasing the velocity
16:56 < docl> it seems like it has to work. you don't get more thrust than solar wind this way, but you do get a plasma beam
17:04 < muurkha> nmz787: right, but someone has to make the masks the designers design, and that's expensive
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17:51 < hprmbridge> kanzure> https://medium.com/23andme-engineering/genetic-datastore-4b213256db31
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17:54 < hprmbridge> kanzure>  https://cdn.discordapp.com/attachments/1064664282450628710/1187936293498388630/image0.png?ex=6598b2e3&is=65863de3&hm=4d7af4771bf999a30181e4baddb93da10b2b2bed77d19cf5b9ef9c4c79c0b538&
17:57 < hprmbridge> kanzure> https://blog.samaltman.com/what-i-wish-someone-had-told-me
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--- Log closed Sat Dec 23 00:00:07 2023