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:
Sep. 23, 1997
Filed:
Dec. 21, 1995
Applicant:
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437 / ; 437 / ; 437238 ; 437247 ;
Abstract
A dual gate insulating film of a thin film transistor (TFT) is disclosed in which edge-thinning is eliminated by forming a thermal oxide film after depositing an oxide film by a low temperature chemical vapor deposition (CVD) method. According to the disclosed dual gate insulating film and method for making the same, exposure of gate material on edges of the gate film is prevented, grooving of the active pattern of polycrystalline silicon is reduced, and the same electric and insulating characteristics as those of the conventional thermal oxide film are obtained.