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:
Feb. 15, 2011
Filed:
Nov. 05, 2007
Applicant:
Kou Sasaki, Kanagawa, JP;
Inventor:
Kou Sasaki, Kanagawa, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01); H01L 23/52 (2006.01); H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device package includes a plurality of stacked semiconductor chips and a spacer interposed therebetween. The spacer includes a first spacer and a second spacer stacked on one another. The first and the second spacers have different principal surfaces. If the second spacer has a larger principal surface than the first spacer, flexure of the upper semiconductor chip can be avoided.