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What is difference between CMOS vs. SOI CMOS vs. SiGe technologies?

What is difference between CMOS vs. SOI CMOS vs. SiGe technologies?

What is difference between CMOS vs. SOI CMOS vs. SiGe technologies?

I see various kinds of chipsets and MCMs being floated as potential solutions for 5G towers/repeaters. What are the pros and cons of these kinds of semiconductors?

RE: What is difference between CMOS vs. SOI CMOS vs. SiGe technologies?

CMOS -- Complementary Metal Oxide Semiconductor is the silicon technology that's been most PCs since the early 90s, ever reducing in critical dimensions from around 2 um to under 20 nm, over the last 3 decades.

SOI -- semiconductor on insulator is where the silicon is grown on top of an insulating/dielectric material such as sapphire as a way of reducing parasitic capacitances to further increase speed.

SiGe -- a totally different chemistry than current silicon-only technology. Haven't kept up, but Ge has faster mobilities than Si, although its performance over temperature ought to be worse.

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