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:
Aug. 11, 2009
Filed:
Jan. 03, 2006
Arnold V. Kholodenko, San Francisco, CA (US);
Robert Z. Bachrach, Burlingame, CA (US);
Mark Mandelboym, Santa Clara, CA (US);
Arnold V. Kholodenko, San Francisco, CA (US);
Robert Z. Bachrach, Burlingame, CA (US);
Mark Mandelboym, Santa Clara, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A method and apparatus for forming a semiconductor sheet suitable for use as a solar cell by depositing an array of solidified drops of a feed material on a sheet support. The desired properties of the sheet fabricated with the teaching of this invention are: flatness, low residual stress, minority carrier diffusion length greater than 40 microns, and minimum grain dimension at least two times the minority carrier diffusion length. In one embodiment, the deposition chamber is adapted to form and process sheets that have a surface area of about 1,000-2,400 cm.