# why are n-type and p-type called as active area?

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#### banid

##### Newbie level 5
why are n-type and p-type called as active area?

is it correct that "active" means "electrically active"?

##### Full Member level 3
Active areas are defined as areas where the CMOS transistors are fabricated(It will be doped to be n or p ). Thick oxide is grown outside the active areas.
Thick oxide is also known as field oxide. Field oxides isolate the transistors from one another.

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