发明名称 |
MANUFACTURING METHOD FOR PHOTOVOLTAIC POWER DEVICE AND MANUFACTURING APPARATUS FOR PHOTOVOLTAIC POWER DEVICE |
摘要 |
In order to form a texture structure of inverse pyramid concavities with high speed and accuracy, when a reflection preventing texture is formed on a surface of a photovoltaic power device by laser patterning of an etching resistance film and wet etching, a plurality of laser apertures are machined in a diagonal direction of a square to be a base of the intended pyramid concavity by using a pulse laser and a laser beam splitting means, and a laser aperture pitch between the squares is set to be larger than a pitch on the diagonal.
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申请公布号 |
US2013109128(A1) |
申请公布日期 |
2013.05.02 |
申请号 |
US201013698068 |
申请日期 |
2010.05.17 |
申请人 |
KATSURA TOMOTAKA;NISHIMURA KUNIHIKO;NISHIMURA SHINYA;OKAMOTO TATSUKI;FUJIKAWA SHUICHI;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
KATSURA TOMOTAKA;NISHIMURA KUNIHIKO;NISHIMURA SHINYA;OKAMOTO TATSUKI;FUJIKAWA SHUICHI |
分类号 |
H01L31/18 |
主分类号 |
H01L31/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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