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:
Mar. 23, 2004
Filed:
Oct. 12, 2001
Toshiharu Seko, Yamabe-gun, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A dummy pattern for preventing generation of air bubbles in resin sealing of a semiconductor element is provided at a corner of the semiconductor element on a tape carrier which is composed of a polyimide-based insulating tape and a copper foil pattern formed thereon. The dummy pattern makes it possible to control flow of sealing resin from the corner of the semiconductor element to a space between a lower surface of the semiconductor element and the insulating tape, resulting in prevention of air bubbles generated in resin sealing of the semiconductor element. A generation rate of air bubble can be decreased to 50% or less as compared with a conventional COF semiconductor device.