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:
Jun. 13, 2000
Filed:
Oct. 01, 1999
Applicant:
Inventors:
Reinhard Wolf, Emmerting, DE;
Dirk Flottmann, Altotting, DE;
Assignee:
Wacker-Chemie GmbH, Munchen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07B / ; B03B / ;
U.S. Cl.
CPC ...
209-2 ; 209-3 ; 209352 ; 209380 ; 209379 ; 209 11 ;
Abstract
A method and a device for the separation of semiconductor material has the separation procedure carried out on screens coated with ice made of ultrapure water, optionally mixed with particles of semiconductor material. During the separation, the screens are sprayed with ultrapure water and the screen holes are cut free.