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:
Oct. 06, 1998
Filed:
Sep. 21, 1995
Applicant:
Inventors:
Osamu Sasaki, Tenri, JP;
Manabu Matsuura, Tenri, JP;
Tsukasa Shibuya, Tenri, JP;
Yasushi Kubota, Sakurai, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 59 ; 257 67 ; 257 72 ;
Abstract
A TFT circuit according to the present invention includes a first transistor and a second transistor both formed on an insulating substrate. The first transistor has a channel region comprising a polycrystalline silicon film to which a metal element for enhancing crystallization is added. The second transistor has a channel region comprising a polycrystalline silicon film to which no metal element for enhancing crystallization is added.