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 7400750 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 15, 2008

Filed:

Aug. 30, 2004
Applicant:

Yun-woo Nam, Gyeonggi-do, KR;

Inventor:

Yun-woo Nam, Gyeonggi-do, KR;

Assignee:

Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided are a fingerprint sensor and a fabrication method thereof. The fingerprint sensor includes: a complementary metal-oxide semiconductor structure which is formed on a substrate that is doped with a first type dopant; an insulating layer which is formed on the complementary metal-oxide semiconductor structure; a lower electrode which is formed in a central portion of the insulating layer; a piezoelectric region which is formed on the lower electrode; an upper electrode which is formed on the piezoelectric layer; and a fingerprint contact layer which is formed to cover a portion of an upper surface of the insulating layer on which the lower electrode has not been formed, the lower electrode, the piezoelectric region, and the upper electrode.


Find Patent Forward Citations

Nam, Yun-woo. (2008). Fingerprint sensor and fabrication method thereof (U.S. Patent No. 7400750). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7400750

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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