Question

Why are new types of transistors created?

Answer 1

The transistor which was first invented was a great invention but it wasn't perfect it had many problems associated with it ,to overcome those problems new designs were formulated and new transistors were designed this process still goes on .as of moore law states " the no of transistor on a dense integrated circuit doubles every 2 year" so to fullfil this universal law new designes are continuously made with eaxh design better than the previous one .for example nmos is better than Pmos in terms of speed . CMOS is better than both nmos and pmos in terms of speed and power consumption. I hope I am able to solve your query.

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