Title:
HIGH THROUGHPUT SAPPHIRE CORE PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2012/031148
Kind Code:
A3
Abstract:
A method for producing growth-axis oriented single crystal sapphire cores or near-net cores is provided. According to the method, a boule is grown on a desired growth axis having a first axial end and a second axial end. An orientation of a plane normal to the desired growth axis with respect to the boule is determined. The boule is then cored in a direction perpendicular to the plane to produce at least one growth-axis oriented single crystal sapphire core, or the boule is outer-diameter-grinded the boule to form a single crystal sapphire near-net core.
Inventors:
SCHWERDTFEGER CARL RICHARD (US)
KLOTZ MATTHEW GARY (US)
KHATTAK CHANDRA P (US)
KLOTZ MATTHEW GARY (US)
KHATTAK CHANDRA P (US)
Application Number:
PCT/US2011/050244
Publication Date:
May 24, 2012
Filing Date:
September 01, 2011
Export Citation:
Assignee:
ADVANCED RENEWABLE ENERGY CO LLC (US)
SCHWERDTFEGER CARL RICHARD (US)
KLOTZ MATTHEW GARY (US)
KHATTAK CHANDRA P (US)
SCHWERDTFEGER CARL RICHARD (US)
KLOTZ MATTHEW GARY (US)
KHATTAK CHANDRA P (US)
International Classes:
C30B29/20; C30B23/00; H01L33/00
Foreign References:
| US20080075941A1 | 2008-03-27 | |||
| US20090081456A1 | 2009-03-26 | |||
| US20030080345A1 | 2003-05-01 |
Attorney, Agent or Firm:
OKEY, David, W. (c/o CPA GlobalP.O. Box 5205, Pittsburgh PA, US)
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