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:
Jul. 25, 1995
Filed:
Nov. 22, 1993
Takeo Muragishi, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A thin film transistor (TFT) capable of reducing the leakage current on the occasion when the transistor is OFF and lowering the resistance of an interconnection layer connected to source/drain regions and a method of manufacturing the same are disclosed. In the thin film transistor, the length in the channel width direction of a polycrystalline silicon film 15 in junction parts 15c of a pair of source/drain regions 15b and a channel region 15a is smaller than the length in the channel width direction of polycrystalline silicon film 15 in source/drain regions 15b. Accordingly, the leakage current generated in junction parts 15c on the occasion when the TFT is OFF is reduced. In addition, it is unnecessary to reduce the length in the channel width direction of source/drain regions 15b, so that the resistance of an interconnection layer connected to source/drain regions 15b is lowered as compared to the conventional one.