发明名称 |
ABLATION OF FILM STACKS IN SOLAR CELL FABRICATION PROCESSES |
摘要 |
<p>A dielectric film stack of a solar cell is ablated using a laser. The dielectric film stack includes a layer that is absorptive in a wavelength of operation of the laser source. The laser source, which fires laser pulses at a pulse repetition rate, is configured to ablate the film stack to expose an underlying layer of material. The laser source may be configured to fire a burst of two laser pulses or a single temporally asymmetric laser pulse within a single pulse repetition to achieve complete ablation in a single step.</p> |
申请公布号 |
EP2576128(A1) |
申请公布日期 |
2013.04.10 |
申请号 |
EP20110792819 |
申请日期 |
2011.03.24 |
申请人 |
SUNPOWER CORPORATION |
发明人 |
HARLEY, GABRIEL;KIM, TAESEOK;COUSINS, PETER JOHN |
分类号 |
B23K26/36 |
主分类号 |
B23K26/36 |
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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