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. 07, 2011
Filed:
Dec. 21, 2007
Brahmanandam V. Tanikella, Northboro, MA (US);
Matthew A. Simpson, Sudbury, MA (US);
Palaniappan Chinnakaruppan, Springboro, OH (US);
Robert A. Rizzuto, Worcester, MA (US);
Isaac K. Cherian, Shrewsbury, MA (US);
Ramanujam Vedantham, Worcester, MA (US);
Brahmanandam V. Tanikella, Northboro, MA (US);
Matthew A. Simpson, Sudbury, MA (US);
Palaniappan Chinnakaruppan, Springboro, OH (US);
Robert A. Rizzuto, Worcester, MA (US);
Isaac K. Cherian, Shrewsbury, MA (US);
Ramanujam Vedantham, Worcester, MA (US);
Saint-Gobain Ceramics & Plastics, Inc., Worcester, MA (US);
Abstract
A sapphire substrate includes a generally planar surface having a crystallographic orientation selected from the group consisting of a-plane, r-plane, m-plane, and c-plane orientations, and having a nTTV of not greater than about 0.037 μm/cm, wherein nTTV is total thickness variation normalized for surface area of the generally planar surface, the substrate having a diameter not less than about 9.0 cm.