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:
Jul. 24, 2007
Filed:
Dec. 19, 2000
Ju Hyun Lee, Choongchungnam-do, KR;
Ju Hyun Lee, Choongchungnam-do, KR;
Testech, Inc., Choongnam, KR;
Abstract
A method for manufacturing a fingerprint recognition sensor is provided. The method includes providing a CMOS sensor; depositing a transparent electrode layer as a thin film on the upper portion of the CMOS image sensor, to which a terminal of an AC power source is connected, the transparent electrode layer being made of a transparent insulating material and a transparent conductive material; forming a luminescent layer at the upper portion of the transparent electrode layer to generate a light image; forming a dielectric layer at the upper portion of the luminescent layer; and forming a contamination-resistance film at the upper portion of the dielectric layer. With this method, since the CMOS image sensor is utilized, circuit construction can be simplified. In addition, a fingerprint image having a good contrast can be obtained.