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:
Sep. 26, 2006
Filed:
Apr. 14, 2004
Applicant:
Norio Imaoka, Takamori-machi, JP;
Inventor:
Norio Imaoka, Takamori-machi, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0232 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides an optical device that enables a mutual electrical connection between the stacked semiconductor substrates to be realized with ease and high reliability and to provide for miniaturization. The optical device has a first semiconductor substrate having an optical part and a first pad, a second semiconductor substrate having an integrated circuit and a second pad which is stacked under the first semiconductor substrate, a through-hole continuously extending through the first and the second semiconductor substrate, and a conductive part so formed as to include the inside of the through-hole.