Insulated gate field effect transistor and method for...

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – On insulating substrate or layer

Reexamination Certificate

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C438S158000, C438S160000, C438S166000

Reexamination Certificate

active

06887746

ABSTRACT:
In an inverted stagger type thin-film transistor, the preparing process thereof can be simplified, and the unevenness of the thin film transistor prepared thereby can be reduced. That is, disclosed is a preparing method which comprises selectively doping a semiconductor on a gate insulating film with an impurity to form source, drain, and channel forming regions, and conducting a laser annealing to them, or a preparing method which comprises selectively doping the semiconductor region with an impurity by a laser doping method.

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