发明名称 |
Method for making a stencil with a borax-free, low-dichromate, casein photoresist composition |
摘要 |
The method comprises applying to a surface to be etched a coating of a borax-free, low dichromate, casein photoresist liquid composition comprising an acid-precipitated casein, sodium hydroxide as an alkalizing agent, an alkali dichromate photosensitizer and water. The composition has a pH in the range of 6.0 to 7.0, and reduced quantities of the alkalizing agent and photosensitizer compared to prior coating compositions.
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申请公布号 |
US4865953(A) |
申请公布日期 |
1989.09.12 |
申请号 |
US19870101698 |
申请日期 |
1987.09.28 |
申请人 |
RCA LICENSING CORP. |
发明人 |
RITT, PETER M.;RAPP, KEVIN M.;MINNERLY, KENNETH G. |
分类号 |
G03F7/04 |
主分类号 |
G03F7/04 |
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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