Bei D Wu

US Patent:

20110158887, Jun 30, 2011

Filed:

Aug 21, 2009

Appl. No.:

13/061081

Inventors:

Nathan G. Stoddard - Gettysburg PA, US
James A. Cliber - Emmitsburg MD, US
Roger F. Clark - Knoxville MD, US
Bei Wu - Frederick MD, US
Soham Dey - Hillsboro OR, US
Douglas L. Stark - Mt. Airy MD, US

Assignee:

AMG IdealCast Solar Corporation - Frederick MD

International Classification:

C01B 33/02
F27D 3/00
F27B 14/02
F27B 14/04
F27B 14/06
B29C 39/02
B29C 39/38

US Classification:

423348, 432239, 432 75, 432 13, 432 2, 219635, 219162, 432263, 432 1, 425470, 264319

Abstract:

This invention relates to a two or three-stage apparatus and method of use to produce high purity silicon, such as for use in solar panels and/or photovoltaics. The device of this invention includes a melting apparatus with a delivery device, a holding apparatus with a tipping or transfer mechanism, and at least one solidification apparatus for receiving a molten feedstock. The optimized designs of individual apparatuses function efficiently in combination to produce high purity silicon.

US Patent:

20100197070, Aug 5, 2010

Filed:

Jul 16, 2008

Appl. No.:

12/669504

Inventors:

Nathan G. Stoddard - Gettysburg PA, US
Bei Wu - Frederick MD, US
Roger F. Clark - Knoxville MD, US
James A. Cliber - Emmitsburg MD, US

Assignee:

BP Corproation North America Inc. - Warrenville IL

International Classification:

H01L 31/18
B29C 39/14
B28B 1/54
B29C 35/16

US Classification:

438 68, 264308, 425224, 425144, 257E31001

Abstract:

Methods and apparatuses are provided for casting silicon for photovoltaic cells and other applications. With these methods, an ingot can be grown that is low in carbon and whose crystal growth is controlled to increase the cross-sectional area of seeded material during casting.

Address:

6950 Exeter Ct APT 304, Frederick, MD 21703

VIN:

YV1RS592172619850

Make:

VOLVO

Model:

S60

Year:

2007