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:
Feb. 23, 2016
Filed:
Dec. 20, 2013
Applicant:
First Solar, Inc., Perrysburg, OH (US);
Inventors:
Long Cheng, Perrysburg, OH (US);
Pawel Mrozek, Waterville, OH (US);
Assignee:
First Solar, Inc., Perrysburg, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/18 (2006.01); H01L 21/02 (2006.01); C25D 7/12 (2006.01);
U.S. Cl.
CPC ...
H01L 31/1828 (2013.01); C25D 7/12 (2013.01); H01L 21/0248 (2013.01); H01L 21/0251 (2013.01); H01L 21/02411 (2013.01); H01L 21/02505 (2013.01); H01L 21/02562 (2013.01); H01L 21/02579 (2013.01); H01L 21/02628 (2013.01);
Abstract
A method and apparatus for an amount of Cu or Sb dopant incorporated into a zinc-based layer as the layer is being formed. The layer is formed over a coated substrate using an electrochemical deposition (ECD) process. In the ECD process, the bias voltage and plating solution composition may be systematically changed during the electrochemical deposition process to change the amount of Cu or Sb dopant incorporated into the plated layer.