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.

Date of Patent:
Aug. 17, 2021

Filed:

Sep. 06, 2017
Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Hiroji Shimizu, Otsu, JP;

Seiichiro Murase, Otsu, JP;

Shota Kawai, Otsu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/40 (2006.01); H01L 51/05 (2006.01); H01L 29/786 (2006.01); G06K 19/077 (2006.01); H01L 23/66 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0558 (2013.01); G06K 19/07724 (2013.01); G06K 19/07773 (2013.01); H01L 23/66 (2013.01); H01L 29/786 (2013.01); H01L 51/0003 (2013.01); H01L 51/0018 (2013.01); H01L 51/0048 (2013.01); H01L 51/0097 (2013.01); H01L 51/05 (2013.01); H01L 51/052 (2013.01); H01L 51/0541 (2013.01); H01L 51/0545 (2013.01); H01L 2223/6677 (2013.01);
Abstract

Provided is a method for manufacturing a field-effect transistor, the method including the steps of: forming a gate electrode on the surface of a substrate; forming a gate insulating layer on the gate electrode; forming a conductive film containing a conductor and a photosensitive organic component by a coating method on the gate insulating layer; exposing the conductive film from the rear surface side of the substrate with the gate electrode as a mask; developing the exposed conductive film to form a source electrode and a drain electrode; and forming a semiconductor layer by a coating method between the source electrode and the drain electrode. This method makes it possible to provide an FET, a semiconductor device, and an RFID which can be prepared by a simple process, and which have a high mobility, and have a gate electrode and source/drain electrodes aligned with a high degree of accuracy.


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