Title:
METHOD FOR MANUFACTURING COMPOUND SEMICONDUCTOR SOLAR CELL
Document Type and Number:
WIPO Patent Application WO/2019/177268
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a compound semiconductor solar cell. A method for manufacturing a compound semiconductor solar cell according to an aspect of the present invention comprises the steps of: forming a sacrificial layer on a mother substrate; forming a compound semiconductor layer on the sacrificial layer; performing primary mesa etching to form a first part having a first thickness at a first region of the compound semiconductor layer and a second part having a second thickness smaller than the first thickness at a second region of the compound semiconductor layer; forming a protective layer on a first surface of the compound semiconductor layer; separating the compound semiconductor layer from the mother substrate; forming a rear side electrode on a second surface of the compound semiconductor layer, which is opposite to the first surface; removing the protective layer; performing secondary mesa etching to remove the second part of the compound semiconductor layer at the second region; and scribing the rear side electrode in the second region.
Inventors:
KWON GUHAN (KR)
KIM SOOHYUN (KR)
KIM SOOHYUN (KR)
Application Number:
PCT/KR2019/001226
Publication Date:
September 19, 2019
Filing Date:
January 29, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H01L31/18; H01L21/306; H01L31/0224; H01L31/0304
Foreign References:
| JP2014017366A | 2014-01-30 | |||
| US20150255668A1 | 2015-09-10 | |||
| KR20140138340A | 2014-12-03 | |||
| KR20140043805A | 2014-04-10 | |||
| JP2013084784A | 2013-05-09 |
Attorney, Agent or Firm:
ROYAL PATENT & LAW OFFICE (KR)
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