Patents by Inventor Rolf Piel

Rolf Piel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for metallizing insulating substrates wherein the roughening and etching processes are controlled by means of gloss measurement
    Patent number: 8137575
    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.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: March 20, 2012
    Assignee: Atotech Deutschland GmbH
    Inventors: Merten Piel, Brigitte Steder, legal representative, Rolf Piel, legal representative, Elke Piel, legal representative, Lutz Stamp, Christiane Moepert
  • METHOD FOR METALLIZING INSULATING SUBSTRATES WHEREIN THE ROUGHENING AND ETCHING PROCESSES ARE CONTROLLED BY MEANS OF GLOSS MEASUREMENT
    Publication number: 20090200263
    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.
    Type: Application
    Filed: October 19, 2005
    Publication date: August 13, 2009
    Applicant: ATOTECH DEUTSCHLAND GMBH
    Inventors: Merten Piel, Brigitte Steder, Rolf Piel, Elke Piel, Lutz Stamp, Christiane Moepert