Re:GlobalFoundries Details 7 nm Plans: Three Generations, 70...
by leggomylibro on Friday June 23, 2017 @06:08PM
(#14623151)
Well, I have always wanted a vacuum chamber - I think you could also try making your own solar panels if you managed to dope your own silicon. The fun part about that kind of equipment, though, is that you can often get passably-functional DIY models by slapping some off-the-shelf parts together in/around an enclosure. I was thinking of doing that with a thermal cycler, but I wound up finding an old used one for cheap.
Re:GlobalFoundries Details 7 nm Plans: Three Generations, 70...
by twic on Friday June 23, 2017 @05:22PM
(#14622907)
A 100 millimetre fab? Now that would be something to see!
Re:GlobalFoundries Details 7 nm Plans: Three Generations, 70...
by reportingsjr on Friday June 23, 2017 @05:52PM
(#14623068)
Fab lines are indicated by wafer size rather than feature size. Although it is normally in inches starting at 4" and smaller.
Re:GlobalFoundries Details 7 nm Plans: Three Generations, 70...
by btian on Friday June 23, 2017 @07:35PM
(#14623548)
It hasn't been in inches for years.
The most common size is 300 mm, next generation will be 450 mm.
Generally creating metal layers was going to be hard (you need a vacuum chamber to sputter aluminum on the die)
There had been a guy trying to sell most of a 100mm fab line in Santa Cruz at one point, to make chips you needed some pretty nasty chemicals though. Berkeley used to have a fab line they ran for their graduate students (I don't know if they still do or not).
I guess the bottom line is how much effort are you willing to put into the project ? :-)