发明名称 |
Roll coating apparatus and method capable of providing coatings without pin holes |
摘要 |
An improved roll coating apparatus and method includes a coating roll having a smooth surface for applying a resist, a doctor roll having grooves on its surface for supplying prescribed amount of the resist to the coating roll, and a back up roll which is in contact with the coating roll for conveying a substrate on which the resist is applied to a prescribed direction. Even if there are minute concave portions on the surface of the substrate, the resist is forced to fill the minute concave portions, since the resist is pressed and forced to be applied on the substrate by the coating roll having smooth surface and the back up roll.
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申请公布号 |
US5028457(A) |
申请公布日期 |
1991.07.02 |
申请号 |
US19900565885 |
申请日期 |
1990.08.09 |
申请人 |
DAINIPPON SCREEN MFG. CO., LTD. |
发明人 |
KINOSE, KAZUO;TANAKA, MASATO |
分类号 |
G03F7/16;B05C1/02;B05C1/08;B05D1/28;H01L21/027;H01L27/12;H05K3/06;(IPC1-7):B05D1/36;B05C1/12 |
主分类号 |
G03F7/16 |
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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