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. 26, 2015
Filed:
Mar. 14, 2014
Applied Materials, Inc., Santa Clara, CA (US);
Prabhat Kumar, Fremont, CA (US);
Michael P. Stewart, San Francisco, CA (US);
Kalyan Rapolu, Santa Clara, CA (US);
Lin Zhang, San Jose, CA (US);
Hari K. Ponnekanti, San Jose, CA (US);
APPLIED MATERIALS, INC., Santa Clara, CA (US);
Abstract
Embodiments of the present invention are directed to processes for making solar cells by simultaneously co-firing metal layers disposed both on a first and a second surface of a bifacial solar cell substrate. Embodiments of the invention may also provide a method forming a solar cell structure that utilize a reduced amount of a silver paste on a front surface of the solar cell substrate and a patterned aluminum metallization paste on a rear surface of the solar cell substrate to form a rear surface contact structure. Embodiments can be used to form passivated emitter and rear cells (PERC), passivated emitter rear locally diffused solar cells (PERL), passivated emitter, rear totally-diffused (PERT), 'iPERC,' Crystalline Reduced-cost Aluminum Fire-Through (CRAFT), pCRAFT, nCRAFT or other high efficiency cell concepts.