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. 04, 2014
Filed:
Jun. 22, 2009
Juhwa Cheong, Seoul, KR;
Hyunjung Park, Seoul, KR;
Junyong Ahn, Seoul, KR;
Seongeun Lee, Seoul, KR;
Jiweon Jeong, Seoul, KR;
Juhwa Cheong, Seoul, KR;
Hyunjung Park, Seoul, KR;
Junyong Ahn, Seoul, KR;
Seongeun Lee, Seoul, KR;
Jiweon Jeong, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO, and up to about 30 wt % of acetic acid based on total weight of the etchant.