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. 04, 2006
Filed:
Dec. 23, 2003
Shigehisa Tomabechi, Mine, JP;
Akihiro Hamano, Ube, JP;
Shigehisa Tomabechi, Mine, JP;
Akihiro Hamano, Ube, JP;
Sumitomo Metal (SMI) Electronics Devices Inc., Yamaguchi, JP;
Abstract
The present invention provides a high heat dissipation plastic package and a method for making the same that provides an inexpensive, thin high heat dissipation plastic package with good bonding precision and minimal bleeding of adhesive resin. A Cu foil resin film is formed by bonding an adhesive resin to a Cu foil and pre-forming, at an essentially central position, a cut-out for a cavity used to mount a semiconductor element. The Cu foil resin film is bonded using the adhesive resin directly to a heat dissipation plate. A conductor wiring pattern is formed on the Cu foil resin film. Furthermore, the heat dissipation plate includes a stopping section used to prevent resin from bleeding onto a cavity when bonding with the adhesive resin of the Cu foil resin film.