Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Making RAM at Home [video]

youtube.com

Post reply on HN
Print view View original

121–130 of 186 posts

Re: Making RAM at Home [video]

#121

Post by taf2 »

readitalready wrote: post #45
keysersoze33 wrote: post #41

Earlier quoted context omitted.

Admit it, deep down, our inner engeering child also wants to build a semiconductor clean room ;)

I do but my days in the fab taught me that you do NOT want people to do this, considering the extremely dangerous chemicals involved. People have died changing EMPTY tanks of phosphine gas used for doping… and HF acid used for etch is another nightmare entirely.

In my journey to make pcb’s at home I decided to stop once I almost gassed myself and shifted instead to buying gpus

Re: Making RAM at Home [video]

#122

Post by ece »

taf2 wrote: post #121
readitalready wrote: post #45

Earlier quoted context omitted.

I do but my days in the fab taught me that you do NOT want people to do this, considering the extremely dangerous chemicals involved. People have died changing EMPTY tanks of phosphine gas used for doping… and HF acid used for etch is another nightmare entirely.

In my journey to make pcb’s at home I decided to stop once I almost gassed myself and shifted instead to buying gpus

I visited a pcb making factory once. Left with an appreciation for the amount of work needed for 80-layer pcbs, and knowing I would not want to deal with making them myself.

Re: Making RAM at Home [video]

#124

Post by onemoresoop »

ErroneousBosh wrote: post #102
readitalready wrote: post #45

Earlier quoted context omitted.

I do but my days in the fab taught me that you do NOT want people to do this, considering the extremely dangerous chemicals involved. People have died changing EMPTY tanks of phosphine gas used for doping… and HF acid used for etch is another nightmare entirely.

This is the issue I have with people saying that solar power is "clean and eco friendly". It sure is, if you ignore the fact that you have to have a factory to make it where one of the *nicest* things around is the fucking hydrofluoric acid, and most of the rest will kill you instantly in trace amounts.

The technology is, the production is not but you can contain that, at least in theory. Compare that with gasoline that everytime you obtain energy from it you burn it out of existence and create a mess of the environment.

Re: Making RAM at Home [video]

#126

Post by fc417fc802 »

wolfi1 wrote: post #95
readitalready wrote: post #45

Earlier quoted context omitted.

I do but my days in the fab taught me that you do NOT want people to do this, considering the extremely dangerous chemicals involved. People have died changing EMPTY tanks of phosphine gas used for doping… and HF acid used for etch is another nightmare entirely.

I used to graduate at an institute having physicists as well as chemists, I gues it was no coincidence that only physicists operated with HF, one chemist told me that no chemist in their right mind would touch it

That's not quite accurate (but close enough). We had HF in the chem lab. It lived in a dedicated metal box with a massive neon warning label and a padlock.

It's notable in comparison that all the deadly organics lived together in an unlocked cupboard (vented OFC). I think the only thing I ever saw treated as more of a pariah than HF were radioactive isotopes. Those generally get an entire dedicated room with restricted entry and a tedious mandatory cleaning procedure.

Re: Making RAM at Home [video]

#127

Post by fc417fc802 »

petee wrote: post #114
p0w3n3d wrote: post #22

1999. We will have flying cars 2024. LLMs - there will be robots 2026. How to make your own RAM

2030. All flying cars are actually armed drones - homefab is outlawed

Turns out Cessnas are actually low performance missiles with an organic computer for the guidance system.

Re: Making RAM at Home [video]

#128

Post by deflator »

fc417fc802 wrote: post #126
wolfi1 wrote: post #95

Earlier quoted context omitted.

I used to graduate at an institute having physicists as well as chemists, I gues it was no coincidence that only physicists operated with HF, one chemist told me that no chemist in their right mind would touch it

That's not quite accurate (but close enough). We had HF in the chem lab. It lived in a dedicated metal box with a massive neon warning label and a padlock. It's notable in comparison that all the deadly organics lived together in an unlocked cupboard (vented OFC). I think the only thing I ever saw treated as more of a pariah than HF were radioactive isotopes. Those generally get an entire dedicated room with restrict…

Makes sense. HF deserves the same awe as radioactive material. I've always found both fascinating. Like some kind of dark magic that curses you if you contact it.

Re: Making RAM at Home [video]

#130

Post by alnwlsn »

ErroneousBosh wrote: post #99
AshamedCaptain wrote: post #90

Earlier quoted context omitted.

Did anyone forget that core memory is woven ? With knitting, beads and everything ? https://dl.acm.org/doi/10.1145/3173574.3174105

Did anyone ever use different coloured ferrites to make cool patterns? I'd have thought that'd be a no-brainer, Navajo blanket core memory!

They usually color ferrites to indicated different magnetic properties. I believe they used different color of wires though.
Post reply on HN