Hi all,
I remember some time back about a discussion with DIY transistors and ICs being possible with the general answer being no. Of course, Jeri Ellsworth made DIY transistors but had to use tape to create protected regions on silicon.
I truely believe, just like PCBs, one day people will be able to custom fab chips and transistors (for use or just fun). I am current writing up a project (just about finished) about home photolithography and would like to show just how small you can make something at home!
This design is approximatley 3mm across making the individual wires 64.75um in width. This is dry-film resist on copper exposed with a white 3mm LED in a custom projection system for 1 hour.
With more time and care I cant see a reason why this will not be possible in the future. People could bring back chips that are no longer available (4004 anyone) without using FPGAs or micros. In the future DIP packages could become rare and so people end up making their own. Who knows!
In the next year or two I intend to repeat Jeri's experiment and then apply this to the fabrication so that I can make teeny tiny transistors.
All the best,
Robin
I remember some time back about a discussion with DIY transistors and ICs being possible with the general answer being no. Of course, Jeri Ellsworth made DIY transistors but had to use tape to create protected regions on silicon.
I truely believe, just like PCBs, one day people will be able to custom fab chips and transistors (for use or just fun). I am current writing up a project (just about finished) about home photolithography and would like to show just how small you can make something at home!
This design is approximatley 3mm across making the individual wires 64.75um in width. This is dry-film resist on copper exposed with a white 3mm LED in a custom projection system for 1 hour.
With more time and care I cant see a reason why this will not be possible in the future. People could bring back chips that are no longer available (4004 anyone) without using FPGAs or micros. In the future DIP packages could become rare and so people end up making their own. Who knows!
In the next year or two I intend to repeat Jeri's experiment and then apply this to the fabrication so that I can make teeny tiny transistors.
All the best,
Robin
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