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. 22, 1988
Filed:
May. 25, 1983
Richardus H Fierkens, Herwen, NL;
Dirk de Kler, Loosdrecht, NL;
ASM-Fico Tooling B.V., , NL;
Abstract
A lead frame for applying micro-electronic elements thereon, which lead frame comprises a series of lead patterns disposed at mutually equal pitch distances, each consisting of a carrier plate lying on the axis of the frame for applying a micro-electronic element thereto, further of leads terminating a short distance from said carrier plate, said leads being connected to lands extending perpendicularly to the frame axis and disposed on either side of the carrier plate, said leads extending beyond said lands in mutually parallel relationship so as to form lead terminals, as far as the next land of the adjoining lead pattern and being connected thereto, while the parallel leads of adjoining patterns are shifted relatively to each other in transverse direction: the mutual distance between two lands associated with one lead pattern is equal to the width of the standardized resin envelope of the micro-electronic element, the lands being provided with cuts in a direction approximately parallel to the axis of the lead frame, said cuts extending form the land edge oriented towards the carrier plate and terminating a short distance from the opposite land edge.