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. 20, 2012
Filed:
Oct. 19, 2005
Merten Piel, Berlin, DE;
Brigitte Steder, Legal Representative, Karlsruhe, DE;
Rolf Piel, Legal Representative, Hamburg, DE;
Elke Piel, Legal Representative, Hamburg, DE;
Lutz Stamp, Berlin, DE;
Christiane Moepert, Berlin, DE;
Merten Piel, Berlin, DE;
Brigitte Steder, legal representative, Karlsruhe, DE;
Rolf Piel, legal representative, Hamburg, DE;
Elke Piel, legal representative, Hamburg, DE;
Lutz Stamp, Berlin, DE;
Christiane Moepert, Berlin, DE;
Atotech Deutschland GmbH, Berlin, DE;
Abstract
The invention relates to a control of etching processes of insulating substrates by means of gloss measurement. By this method a surface roughness can be achieved which leads to good adhesion of metals layers deposited in subsequent metallization steps. This method is particularly suited for the production of printed circuit boards.