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.

Date of Patent:
Sep. 10, 2024

Filed:

Dec. 12, 2019
Applicant:

Siltronic Ag, Munich, DE;

Inventors:

Axel Beyer, Munich, DE;

Stefan Welsch, Polling, DE;

Assignee:

SILTRONIC AG, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28D 5/04 (2006.01); B24B 27/06 (2006.01); B28D 5/00 (2006.01); H01L 21/67 (2006.01); B23D 59/00 (2006.01); B28D 7/00 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
B28D 5/0064 (2013.01); B24B 27/0633 (2013.01); B28D 5/0082 (2013.01); B28D 5/045 (2013.01); H01L 21/67092 (2013.01); H01L 21/67253 (2013.01); B23D 59/00 (2013.01); B28D 5/00 (2013.01); B28D 5/0058 (2013.01); B28D 5/007 (2013.01); B28D 5/04 (2013.01); B28D 7/00 (2013.01); H01L 21/0201 (2013.01);
Abstract

Semiconductor wafers are produced from a workpiece by means of a wire saw, by feeding the workpiece through an arrangement of wires tensioned between wire guide rollers and divided into wire groups, the wires moving in a running direction producing kerfs as wires engage the workpiece. For each of the wire groups, a placement error of the kerfs of the wire groups determined, and for each of the wire groups compensating movements of the wires of the wire group are induced as a function of the placement error, in a direction perpendicular to the running direction of the wires during feeding of the workpiece through the arrangement of wires, by activating at least one drive element.


Find Patent Forward Citations

Beyer, Axel. (2024). Method for producing semiconductor wafers using a wire saw, wire saw, and semiconductor wafers made of monocrystalline silicon (U.S. Patent No. 12083705). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12083705

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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