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. 05, 2012
Filed:
Oct. 23, 2006
Applicants:
Dirk Tews, Berlin, DE;
Christian Sparing, Berlin, DE;
Inventors:
Dirk Tews, Berlin, DE;
Christian Sparing, Berlin, DE;
Assignee:
Atotech Deutschland GmbH, Berlin, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/306 (2006.01); C09K 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method for treating copper or copper alloy surfaces for tight bonding to polymeric substrates, for example solder masks found in multilayer printed circuit boards. The substrate generally is a semiconductor-device, a lead frame or a printed circuit board.