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:
Nov. 20, 2001
Filed:
Dec. 21, 1999
Hiromitsu Takeda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
There is provided a lead frame including first and second rows of inner leads each of which is electrically connected to an associated electrode of a semiconductor chip and which are situated at opposite sides about the semiconductor chip, first and second rows of outer leads each of which is electrically connected to an associated inner lead in the first and second rows of inner leads, respectively, a tie bar connecting a first outermost inner lead in the first row of inner leads to a second outermost inner lead in the second row of inner leads, and a control plate comprised of first branches extending from the first outermost inner lead towards the second outermost inner lead and second branches extending from the second outermost inner lead towards the first outermost inner lead, the control plate being connected to the tie bar. Since the control plate is connected to the tie bar, the control plate is stabilized without being influenced by flow of resin introduced into a cavity in a step of sealing a semiconductor device with resin.