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.:

US 8088642 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 03, 2012

Filed:

Jan. 08, 2009
Applicant:

Ikuo Fukui, Niigata-ken, JP;

Inventor:

Ikuo Fukui, Niigata-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a thin-film field effect transistor with a MIS structure, the materials of which the semiconductor and insulating layers are made are polymers which are dissolvable in organic solvents and have a weight average molecular weight of more than 2,000 to 1,000,000. Use of polymers for both the semiconductor layer and insulating layer of TFT eliminates such treatments as patterning and etching using photoresists in the prior art circuit-forming technology, reduces the probability of TFT defects and achieves a reduction of TFT manufacture cost.


Find Patent Forward Citations

Fukui, Ikuo. (2012). Thin-filmed field effect transistor and making method (U.S. Patent No. 8088642). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8088642

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