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. 30, 2002
Filed:
Aug. 13, 1999
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An inner lead and an outer lead are formed only on an insulating tape. A semiconductor chip and the inner lead are connected by the flip chip method by providing an anisotropic conductive material therebetween. A radiating plate is bonded to the insulating tape with use of an adhesive so that the radiating plate covers all regions where solder balls connected with the outer leads are formed. Unlike the TAB type, the inner lead is not uncovered with the insulating tape, whereby deformation of the inner lead is suppressed as much as possible. With this arrangement, the following effect can be achieved. Namely, in a semiconductor device of the BGA type, heat generated during package manufacture can be efficiently emitted, and hence package defects caused by heat and stress during manufacture can be suppressed. As a result, smaller and thinner packages can be manufactured, while pitch narrowing and multiple-port structure can be achieved.