发明名称 |
ABLATED LASER FEATURE SHAPE REPRODUCTION CONTROL |
摘要 |
<p>This invention concerns a process useful for increasing the accuracy of the shape of a laser ablated feature formed on a substrate, especially where the substrate is a polymeric article. The process includes irradiating the polymeric article with laser light that has passed through a retardation plate selected from stationary adjustable plate s, rotating plates or spinning plates, preferable in multiples of quarter-waves or half-waves. This invention also concerns a laser apparatus useful for making ablated features in a substrate having a radiation source; a mask positioned between the radiation source and a substrate to be irradiated, and a retardation plate which is stationary and adjustable, rotating or spinning plates.</p> |
申请公布号 |
CA2348277(C) |
申请公布日期 |
2007.10.16 |
申请号 |
CA19992348277 |
申请日期 |
1999.03.31 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY;MICROLAS LASER SYSTEMS GMBH;LAMBDA PHYSIK GMBH |
发明人 |
SHOEMAKER, CURTIS L.;TREADWELL, DANIEL J.;GOVORKOV, SERGEI V.;BURGHARDT, BERTHOLD |
分类号 |
B23K26/06;B41J2/135;B23K26/073 |
主分类号 |
B23K26/06 |
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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