发明名称 |
Substrate crack inspecting method, substrate crack inspection apparatus, and solar battery module manufacturing method |
摘要 |
Certain example embodiments of the present invention provide a method for detecting a substrate crack by simple equipment and steps. A substrate crack inspecting method may include the steps of (1) producing a sound by providing vibration to a substrate, (2) determining a power spectrum by capturing the produced sound and carrying out an acoustic analysis for the captured sound, and (3) judging whether or not a substrate crack exists based on a spectral intensity of a predetermined frequency region.
|
申请公布号 |
US7191656(B2) |
申请公布日期 |
2007.03.20 |
申请号 |
US20040965743 |
申请日期 |
2004.10.18 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
YAGI KATSUYUKI;KANISHI HIROSHI;KAWAGOE YOSHIKAZU |
分类号 |
G01N29/12;H01L31/04;G01H13/00;G01M7/08;G01N29/04;G01N29/44;G01N29/46 |
主分类号 |
G01N29/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|