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:
Aug. 30, 2016
Filed:
Nov. 22, 2013
Siltronic Ag, Munich, DE;
Peter Wiesner, Reut, DE;
SILTRONIC AG, Munich, DE;
Abstract
A method resumes an interrupted process for sawing a workpiece into wafers using a wire saw that includes advancing a wire web into existing sawing kerfs of the workpiece with a forward movement of the sawing wire with a first speed in the presence of a liquid sawing medium until the wire web or workpiece has reached a position corresponding to the interruption of the wire sawing process. The sawing wire is moved in defined time intervals by a forward movement of a particular length with a second speed and a backward movement of another length with a third speed, where the backward length is less than the forward length and the forward and backward movement correspond to a cycle. The wire length that is unwound during the forward movements is increased until the length during the forward movement corresponds to the length of the forward movement before the interruption.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile