Chapter 6

Various Channel Doping Profile MOSFET Models

Kunihiro Suzuki

Abstract

Non uniform channel doping profile enables us to control threshold voltage suppressing short channel effects. We showed how threshold voltage V<sub>th</sub> is controlled for various channel doping profiles such as epi-channel, and counter doped channel. V<sub>th</sub> is controlled by the thickness of epi-layer in epi-channel MOSFETs and it is controlled widely with centroid and dose in counter doped channel MOSFETs. The models were verified by comparing with numerical data. The feasibility of counter doped channel is also studied.

Total Pages: 399-431 (33)

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