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:
Aug. 24, 2010
Filed:
Dec. 06, 2006
Applicant:
Takahiro Oikawa, Gunma, JP;
Inventor:
Takahiro Oikawa, Gunma, JP;
Assignees:
Sanyo Electric Co., Ltd., Osaka, JP;
Sanyo Semiconductor Co., Ltd., Gunma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 23/52 (2006.01); H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
The characteristic of the semiconductor device of this invention is that the device has a piercing holeformed in the semiconductor layer to touch a first metal film, a insulating filmformed on the side wall of the piercing hole, a second metal filmdisposed on the first metal filmat the bottom of the piercing holewhere the insulating filmhas not been formed and on the semiconductor layer, a barrier metal filmformed on the insulating filmin the piercing holeand on the first metal film, and a wiring layerformed inside the piercing holethrough the barrier metal film