Fabrication method for semiconductor device

Details Fabrication method for semiconductor device Fabrication method for semiconductor device

1996-12-24

1997-11-11

Trinh, Michael

Fishing, trapping, and vermin destroying

437 40, 437 44, 437200, H01L 218232

Patent

active

056863314

ABSTRACT:
A fabrication method for a semiconductor device which is capable of preventing the shorting of the semiconductor device by performing an ion-implantation of an impurity after forming an insulating layer on a gate electrode, and forming sidewall spacers on the upper surface of the gate electrode and at the sides thereof includes: forming on a semiconductor substrate a pattern including a gate insulating film, a gate electrode on the gate insulating film and a disposable layer on the gate electrode; forming low concentration impurity regions in the substrate by performing an ion implantation, using the pattern as a mask; forming first sidewall spacers at the sides of the pattern; forming high concentration impurity regions in the substrate by performing an ion implantation, using the pattern and the sidewall spacers as a mask; stripping the disposable layer; forming second sidewall spacers at the sides of the first sidewall spacers and on both ends of the upper surface of the gate electrode; and forming a reaction layer of a metal and a silicon on the gate electrode and the high concentration impurity regions.

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