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. 18, 1985
Filed:
Nov. 28, 1983
Applicant:
Inventors:
Robert H Cushman, Princeton, NJ (US);
Charles E Stout, Jr, Emmaus, PA (US);
Assignee:
AT&T Technologies, Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
1566 / ; 156D / ; 422249 ; 269 17 ; 269 35 ; 269287 ; 414225 ; 414731 ; 414785 ; 414911 ; 294 681 ; 294 674 ;
Abstract
A semiconductor crystal ingot (14) is supportively engaged by an ingot handling apparatus (22) which contacts a base (38) of the ingot (14) with a base support (36) and opposite sides of a lateral surface of the ingot (14) with at least one pair of jaws (37). The jaws (37) are retained adjacent to but out of firm contact with the lateral surface of the ingot until after the support (36) firmly supports the weight of the ingot. The support and the at least one pair of jaws are retracted from a furnace (10) simultaneously in a lateral direction with no relative movement to withdraw the ingot from the furnace.