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. 21, 2009
Filed:
Sep. 26, 2006
Yoshinori Shizuno, Kanagawa, JP;
Yoshinori Shizuno, Kanagawa, JP;
Oki Semiconductor Co., Ltd., Tokyo, JP;
Abstract
A semiconductor device has a semiconductor substrate with an inclined through hole extending between its two major surfaces in a peripheral part of the substrate, providing an electrical interconnection between the two surfaces. The opening of the inclined through hole on the first major surface, on which electronic components are formed, is closer to the edge of the substrate than is the opening on the second major surface. Reliability is therefore enhanced because cracks forming at the edge of the second major surface are less likely to propagate to the through hole. An electrically conductive path in the through hole is formable by spraying conductive material onto its inner wall, using an ink-jet system.