Skip to main content

All Questions

1 vote
0 answers
230 views

Is a cylindrical GAAfet fabricated with lithography and etching?

The GAAfet, aka the surrounding gate transistor (SGT), is basically a FinFET that surrounds the channel on all 4 sides instead of 3. However, a lot of examples show a cylinder instead of a rectangle. ...
DrZ214's user avatar
  • 1,077
0 votes
1 answer
2k views

Why solvent cleaning of clean wafers includes de-ionized (DI) water?

Solvent (or solution) cleaning of clean wafers includes acetone wash, isopropyl alcohol (IPA) wash and de-ionized (DI) water wash, followed by drying in nitrogen. What's the purpose of using DI water?...
Sparkler's user avatar
  • 823
0 votes
1 answer
76 views

How are few-nanometer multigate MOSFETs fabricated?

Intel and IMEC came up with multigate MOSFET designs with channels as narrow as new nanometers. Which methods/techniques/machines are used to pattern/fabricate such small features? (source) (source)
Sparkler's user avatar
  • 823