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:
Feb. 24, 2004
Filed:
Sep. 17, 2001
Marcel Heerman, Merelbeke, BE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for introducing plated-through holes into an electrically insulating base material includes steps of: providing an electrically insulating base material having a first surface with a first metal layer and a second surface with a second metal layer; applying an etching resist layer at least to the first metal layer; using electromagnetic radiation to remove the etching resist layer and to thereby uncover the first metal layer in regions where plated-through holes are to be produced; etching away the uncovered regions of the first metal layer as far as the first surface of the base material; and using a laser beam to produce the plated-through holes in the base material.