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:
Jan. 30, 2024
Filed:
Aug. 09, 2020
Leading Edge Equipment Technologies, Inc., Wilmington, MA (US);
Jesse S. Appel, South Hamilton, MA (US);
Alison Greenlee, Somerville, MA (US);
Nathan Stoddard, Chalfont, PA (US);
Peter Kellerman, Essex, MA (US);
Parthiv Daggolu, Danvers, MA (US);
Alexander Martinez, Woburn, MA (US);
Saeed Pirooz, Lexington, MA (US);
Brandon Williard, Essex, MA (US);
Charles Bowen, Hampton, NH (US);
Brian McMullen, Taunton, MA (US);
David Morrell, Wakefield, MA (US);
Dawei Sun, Lynnfield, MA (US);
Abstract
A ribbon is formed such that the ribbon floats on a melt using a cold initializer facing an exposed surface of the melt. The ribbon is single crystal silicon. The ribbon is pulled from the silicon melt at a low angle off the melt surface. The ribbon is formed at a same rate as the pulling. The ribbon is separated from the melt at a wall of the crucible where a stable meniscus forms. The ribbon has a thickness between a first surface and an opposite second surface from 50 μm to 5 mm. The ribbon includes a first region extending a first depth from the first surface. The first region has a reduced oxygen concentration relative to a bulk of the ribbon.