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. 09, 1999
Filed:
Jul. 21, 1997
Takaharu Yonemoto, Ibaraki, JP;
Hiroshi Sugimoto, Ibaraki, JP;
Shigeo Hagiya, Ibaraki, JP;
Noriaki Taketani, Ibaraki, JP;
Osamu Yoshioka, Ibaraki, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A lead frame for LOC is provided which, even when an adhesive is applied to a lead prepared by stamping, can ensure insulation of a semiconductor element mounted from the lead. In applying an adhesive to a predetermined position of an inner lead 1 in a lead frame prepared by stamping to form an adhesive layer 4, the adhesive layer 4 is provided on the droop face of the inner lead 1. The droop face has no burr and a bulged center portion, permitting contact, derived from the burr, between a lead face and a semiconductor element, to be avoided, which ensures satisfactory insulation of the semiconductor element mounted from the lead.