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:
Jun. 08, 2010
Filed:
Oct. 01, 2004
Applicants:
Bernd Betz, Obertraubling/Oberhinkofen, DE;
Jochen Dangelmaier, Beratzhausen, DE;
Stefan Paulus, Zeitlarn, DE;
Inventors:
Bernd Betz, Obertraubling/Oberhinkofen, DE;
Jochen Dangelmaier, Beratzhausen, DE;
Stefan Paulus, Zeitlarn, DE;
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); H01L 21/306 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor having a leadframe is disclosed. In one embodiment, a leadframe is disclosed to be fitted with a semiconductor chip and is to be encapsulated with a plastic compound has a metallic single-piece base body, to which an interlayer is applied. The interlayer has a surface including a matrix of islands of remaining material of substantially uniform height, with voids extending between said islands.