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We had many experiments with nanoimprint lithography at the university 20 years ago. The resolution was poor and the durability very poor. After dozens of impri
by lnsru 2y ago
We had many experiments with nanoimprint lithography at the university 20 years ago. The resolution was poor and the durability very poor. After dozens of imprints the “stamps” degraded heavily. I am curious if 20 years were enough to fix all the issues and it’s really competitive today.
- actionfromafar 2y agoWasn't this sort of how Intel got started in the 1970s? Some kind of contact printed ICs?
- formerly_proven 2y agoYou're probably thinking of contact lithography, where a 1:1 mask is placed directly on the wafer and illuminated. This would've been used for the earliest IC processes, where you'd still be able to see the structures with the naked eye or a loupe.
- f1shy 2y agoThat is basically like home grown PCB but at very tiny.
- hinkley 2y agoI would think you’d want to make them out of something crazy like diamond or titanium carbide. What did you make yours out of?
- swordsmith 2y agoCame to the comments to see this. Stamping has all sorts of problems with alignment, stamp resolution, contact quality, etc, it's not clear whether this so called "simplicity" still holds after scaling up the resolution even more.