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:
May. 04, 2004
Filed:
Nov. 14, 2000
Applicant:
Inventors:
Tsuyoshi Katoh, Kagoshima, JP;
Hideto Motoshima, Kagoshima, JP;
Assignee:
NEC LCD Technologies, Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/978 ;
U.S. Cl.
CPC ...
H01L 2/978 ;
Abstract
A voltage of a front channel (gate side wiring) of a thin film transistor is made equal to a voltage of a back channel (liquid crystal alignment side) thereof by electrically connecting a gate electrode and a back channel electrode through a gate contact hole to a semiconductor layer constituting the thin film transistor. The thin film transistor is fabricated through four patterning steps by simultaneously etching the semiconductor layer and a transparent electrode by using a photo resist on the front channel.