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:
Oct. 13, 2015
Filed:
Dec. 21, 2012
Memc Electronic Materials, Inc., St. Peters, MO (US);
Sumeet S. Bhagavat, St. Charles, MO (US);
Carlo Zavattari, Varallo Pombia, IT;
Yunbiao Xin, Palo Alto, CA (US);
Roland R. Vandamme, Wentzville, MO (US);
SunEdison Semiconductor Ltd., Singapore, SG;
Abstract
Methods are disclosed for determining mounting locations of ingots on a wire saw machine. The methods include measuring a test surface of a test wafer previously sliced by the wire saw machine from a test ingot to calibrate the system. A magnitude and a direction of an irregularity of the measured test surface of the test wafer is then determined. The mounting location is then determined for another ingot to be mounted on the ingot holder based on at least one of the magnitude and direction of the irregularity of the measured test surface of the test wafer.