Method of manufacturing semiconductor device

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

Reexamination Certificate

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C438S592000, C257SE21636

Reexamination Certificate

active

07465624

ABSTRACT:
The present invention provides a method of manufacturing a semiconductor device, comprising forming an electrode pattern made of silicon on a gate insulating film in an n-MOS region and a p-MOS region of a semiconductor substrate, masking the n-MOS region including the first electrode pattern with a first insulating film pattern, forming a first metal film made of platinum all over the surface, forming a gate electrode consisting of a platinum silicide in the p-MOS region, forming an silicon oxide film on the surface of the gate electrode by oxidation, dissolving away a non-reacting Pt film, removing the first insulating film pattern, masking the p-MOS region including the electrode pattern with a second insulating film pattern, forming a second metal film made of europium all over the surface, and forming a gate electrode consisting of a europium silicide in the n-MOS region.

REFERENCES:
patent: 6376888 (2002-04-01), Tsunashima et al.
patent: 6383879 (2002-05-01), Kizilyalli et al.
patent: 6727129 (2004-04-01), Nakajima
patent: 6841429 (2005-01-01), Matsuda et al.
patent: 2001-176985 (2001-06-01), None
patent: 2004-152995 (2004-05-01), None

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