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:
May. 22, 2012
Filed:
Jul. 16, 2009
Timothy W. Weidman, Sunnyvale, CA (US);
Rohit Mishra, Santa Clara, CA (US);
Michael P. Stewart, San Francisco, CA (US);
Yonghwa Chris Cha, San Jose, CA (US);
Kapila P. Wijekoon, Palo Alto, CA (US);
Hongbin Fang, Mountain View, CA (US);
Timothy W. Weidman, Sunnyvale, CA (US);
Rohit Mishra, Santa Clara, CA (US);
Michael P. Stewart, San Francisco, CA (US);
Yonghwa Chris Cha, San Jose, CA (US);
Kapila P. Wijekoon, Palo Alto, CA (US);
Hongbin Fang, Mountain View, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
Embodiments of the invention generally provide a high efficiency solar cell using a novel processing sequence to form a solar cell device. In one embodiment, the methods include forming one or more layers on a backside of a solar cell substrate prior to the texturing process to prevent attack of the backside surface of the substrate. In one embodiment, the one or more layers are a metalized backside contact structure that is formed on the backside of the solar cell substrate. In another embodiment, the one or more layers are a chemical resistant dielectric layer that is formed over the backside of the solar cell substrate.