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:
Apr. 19, 2011
Filed:
Apr. 09, 2009
Applicant:
Hiroyuki Tomomatsu, Oita-ken, JP;
Inventor:
Hiroyuki Tomomatsu, Oita-ken, JP;
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/102 (2006.01); H01L 31/0232 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device that attenuates light to the circuit element area is provided. The semiconductor device includes light-sensitive element area formed on substrate and a circuit element area formed on the substrate. Additionally, a multilayer wiring area is formed on circuit element area. A Tantalum film (which is generally made of tantalum or a tantalum compound) is formed on the surface of the multilayer wiring area to attenuate incident light on circuit element area.