The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2003
Filed:
Jun. 30, 1999
Hyeon Soo Kim, Ichon-shi, KR;
Chang Seo Park, Ichon-shi, KR;
Hyundai Electronics Industries Co., Ltd., Ichon-shi, KR;
Abstract
The present invention relates to a semiconductor technology and more specifically to a method of fabricating a gate electrode of a semiconductor device, where a re-oxidation process that may cause an abnormal oxidation can be eliminated. In a polysilicon/silicide structure or polysilicon/metal structure of gate electrode, a step of etching side parts of gate electrode is performed without any etch mask after gate patterning. Here, the etch can be made by wet or dry etch using an etchant having high selectivity of polysilicon film to a gate oxide film, so that the damaged gate oxide part during the gate patterning is allowed not to make a role of the gate insulating film itself, thereby eliminating the re-oxidation process.