发明名称 |
Prelamination, imagewise exposure of photohardenable layer in process for sensitizing, registering and exposing circuit boards |
摘要 |
Actinic radiation exposes photohardenable material in two steps whereby photohardenable material not present as a solid is exposed through a photomask prior to application to a substrate and in a second step is reexposed through the photomask after application of the material to the substrate.
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申请公布号 |
US4528261(A) |
申请公布日期 |
1985.07.09 |
申请号 |
US19830479494 |
申请日期 |
1983.03.28 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HAUSER, WILLIAM P. |
分类号 |
B05D3/02;B05D3/06;G03F1/00;G03F1/08;G03F7/16;G03F7/20;G03F7/26;H01L21/027;H05K3/00;H05K3/06;(IPC1-7):G03C5/00 |
主分类号 |
B05D3/02 |
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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