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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.:

US 11377751 B1

PDFFull Text
Date of Patent:
Jul. 05, 2022

Filed:

Feb. 20, 2020

Crucible molds

Applicant:

Globalwafers Co., Ltd., Hsinchu, TW;

Inventors:

Richard Joseph Phillips, St. Peters, MO (US);

Salvador Zepeda, St. Peters, MO (US);

Patrick Fredrick Boegemann, III, St. Peters, MO (US);

William Luter, St. Charles, MO (US);

Assignee:

GlobalWafers Co., Ltd., Hsinchu, TW;

Attorney:

Armstrong Teasdale LLP

Primary Examiner:

Kelly M Gambetta

Assistant Examiner:

Andrés E Behrens, Jr

Int. Cl.
CPC ...
C03B 15/10 (2006.01); C03B 29/06 (2006.01); C04B 38/00 (2006.01); B22C 9/00 (2006.01); B28B 7/16 (2006.01); C30B 15/12 (2006.01); C30B 29/06 (2006.01); C30B 15/00 (2006.01); B28B 1/26 (2006.01); C03B 15/00 (2006.01); C03B 35/00 (2006.01); C03B 29/00 (2006.01); C03B 15/12 (2006.01); B28B 1/00 (2006.01); B28B 1/20 (2006.01); C04B 35/00 (2006.01);
U.S. Cl.
CPC ...
C30B 15/12 (2013.01); B22C 9/00 (2013.01); B28B 1/261 (2013.01); B28B 7/16 (2013.01); C30B 15/002 (2013.01); C30B 29/06 (2013.01);
Abstract

Methods for forming a unitized crucible assembly for holding a melt of silicon for forming a silicon ingot are disclosed. In some embodiments, the methods involve a porous crucible mold having a channel network with a bottom channel, an outer sidewall channel that extends from the bottom channel, and a central weir channel that extends from the bottom channel. A slip slurry may be added to the channel network and the liquid carrier of the slip slurry may be drawn into the mold. The resulting green body may be sintered to form the crucible assembly.

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