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. 03, 2012
Filed:
Aug. 22, 2006
Yuichi Kaneya, Hitachi, JP;
Toshiaki Tanaka, Tsukuba, JP;
Toshiaki Itabashi, Tokyo, JP;
Hitachi Chemical Dupont Microsystems, Ltd., Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A circuit connection structure that exhibits excellent adhesiveness between a heat resistant resin film and a circuit adhesive member, even under high temperature and high humidity, is provided by introducing a chemically stable functional group into the heat resistant resin film by additional surface treatment to improve adhesiveness. In a circuit connection structure, a semiconductor substrate and a circuit member are adhered by a circuit adhesive member sandwiched therewith. First circuit electrode on the semiconductor substrate and second circuit electrode on the circuit member are connected electrically by conductive particles in the circuit adhesive member. A surface modification is given to the semiconductor substrate by plasma treatment using gas containing nitrogen, ammonia and the like. Therefore, the heat resistant resin film on the semiconductor substrate and the circuit adhesive member are firmly adhered for a long period of time even under high temperature and high humidity.