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:
Sep. 20, 2005
Filed:
Nov. 27, 2002
Applicants:
Stephan Dobritz, Dresden, DE;
Knut Kahlisch, Dresden, DE;
Steffen Kröhnert, Dresden, DE;
Inventors:
Assignee:
Infineon Technologies AG, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01L023/50 ; H01L023/34 ; H01L023/495 ; H01L023/48 ; B23K031/02 ;
U.S. Cl.
CPC ...
Abstract
A leadframe of a conductive material includes a central region to accommodate a chip and a plurality of connecting fingers extending at least from one side in the direction of the central region, a contact region being provided adjacent to the central region on at least some of the connecting fingers. The course of the connecting fingers is such that a sectional face in an arbitrary imaginary cross-section at right angles to the main face of the leadframe has leadframe material. In such a case, it is attempted to keep cross-sections in a component without leadframe material as small as possible.