Fabrication method for a semiconductor device on a semiconductor

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate

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438149, 438549, H01L 21336

Patent

active

057190810

ABSTRACT:
A two stage threshold adjust implantation process is performed after field oxidation to avoid the effects of dopant redistribution and segregation. At any of several steps in a manufacturing process, only routine implant energy and dose adjustments are required to create a first and a second dopant profile (110, 120) that result in the reduction of edge leakage and threshold voltage sensitivity to device layer thickness of a semiconductor device on a semiconductor on insulator substrate.

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