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. 25, 2009
Filed:
May. 17, 2005
Applicants:
Keisuke Ookubo, Ichihara, JP;
Teiichi Inada, Tsukuba, JP;
Inventors:
Keisuke Ookubo, Ichihara, JP;
Teiichi Inada, Tsukuba, JP;
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
An adhesive bonding sheet having an optically transmitting supporting substrate and an adhesive bonding layer, and being used in both a dicing step and a semiconductor element adhesion step, wherein the adhesive bonding layer comprises: