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.:

US 7922925 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 12, 2011

Filed:

Jun. 16, 2004
Applicants:

Helmut Forstner, Hausmening, AT;

Alfred Hofrichter, Aachen, DE;

Inventors:

Helmut Forstner, Hausmening, AT;

Alfred Hofrichter, Aachen, DE;

Assignee:

Saint-Gobain Glass France, Courbevoie, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/302 (2006.01);
U.S. Cl.
CPC ...
Abstract

Substrates with a coating, in particular a metal-containing coating, are freed of coating in some regions, in particular in the edge region, with the aid of plasma directed onto the coated side of the substrate. The width of the region in which the coating is removed may be set such that plasma from a number of plasma heads arranged next to one another in a row or from one plasma head with variable cross section is directed onto the substrate in the desired width from which the coating is to be removed, wherein the plasma head or heads is/are suitably aligned with respect to the substrate and/or the required number of plasma heads in each case are set in operation. It is also possible to remove coatings only partially in terms of the layer thickness.


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Forstner, Helmut. (2011). Method and device for removing layers in some areas of glass plates (U.S. Patent No. 7922925). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7922925

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