发明名称 |
Puncture-resistant electrostatic chuck with flat surface and method of making the same |
摘要 |
The invention includes a puncture-resistant electrostatic chuck with a flat surface and a method of making the same. The electrostatic chuck includes a conductive layer such as copper foil that is laminated to a first insulation layer such as a polyimide. A puncture-resistant layer is placed over the conductive layer and includes random or woven fibers held together by a resin. The puncture-resistant layer has an uneven topography on a top surface due to the fibers contained therein. A second insulation layer overlies the puncture-resistant layer and has a top surface which is substantially flat. The flat top surface of the second insulation layer is made by laminating layers together with a mandrel which is polished and free of irregularities such as pits, dents and high spots. Preferably the mandrel has a uniform thickness over its entire surface.
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申请公布号 |
US5708557(A) |
申请公布日期 |
1998.01.13 |
申请号 |
US19960703921 |
申请日期 |
1996.08.22 |
申请人 |
PACKARD HUGHES INTERCONNECT COMPANY |
发明人 |
FEIGENBAUM, HAIM;LE, BAO;THOMAS, RANDY LEE;VO, DONG |
分类号 |
H01L21/683;H02N13/00;(IPC1-7):H02N13/00 |
主分类号 |
H01L21/683 |
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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