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. 29, 2003
Filed:
Oct. 13, 2000
Applicant:
Inventors:
Assignee:
Amkor Technology, Inc., Chandler, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/3495 ;
U.S. Cl.
CPC ...
H01L 2/3495 ;
Abstract
A semiconductor package and the leadframe therefor having a reverse-down set part formed in the tie bar supporting the chip paddle. The reverse-down set part of the tie bar may be formed by a mechanical stamping process in such a way that it is present within the insulating body, interlocking therewith. This feature also facilitates the prevention of a short circuit between the tie bar that is exposed externally from the package body and the exposed internal lead through solder upon the mounting of a semiconductor package onto a motherboard.