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:
Jul. 01, 2003
Filed:
Apr. 03, 2001
Applicant:
Inventors:
Shuji Eguchi, Tokai-mura, JP;
Masahiko Asano, Mito, JP;
Mutsumi Watanabe, Hitachinaka, JP;
Kunito Nakatsuru, Mito, JP;
Hiroatsu Tokuda, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 2/706 ;
U.S. Cl.
CPC ...
B32B 2/706 ;
Abstract
The invention provides a packaging structure applied to an automotive component having semiconductors and electronic parts mounted on a ceramic base, characterized in that the semiconductors and electronic parts are partly or entirely sealed with a thixotropic silicone gel which has a thixotropy index of about 1.5-3.6 and a penetration depth of about 6-10 mm and a rate of change in viscosity of less than 10% of the initial value.