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:
Apr. 13, 2010
Filed:
Aug. 21, 2007
Applicants:
Andreas Hegen, Burghausen, DE;
Matthaeus Schantz, Reut, DE;
Bruno Lichtenegger, Altoetting, DE;
Inventors:
Assignee:
Wacker Chemie AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 29/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Noncontaminating and nondestructive testing of a shaped polysilicon body for a material defect is accomplished by exposing the shaped polysilicon body to ultrasound waves, and the ultrasound waves are registered by an ultrasound receiver after they have passed through the shaped polysilicon body or reflected therein, so that material defects in the polysilicon are detected.