发明名称 |
METHOD AND APPARATUS FOR IMPROVING STENCIL/SCREEN PRINT QUALITY |
摘要 |
A method and apparatus for improved stencil/screen print quality is disclosed. The stencil or screen assists in application of a printable material onto a substrate, such as an adhesive to a semiconductor die of a semiconductor wafer during a lead-on-chip (LOC) packaging process. In one embodiment, the stencil includes a coating applied to at least one surface of a pattern of the stencil or screen to retard running of the printable material onto the surface. In another embodiment, the stencil or screen includes a second coating applied to at least one other surface of the pattern to promote spreading of the printable material onto the substrate.
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申请公布号 |
US2003121473(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US19970935745 |
申请日期 |
1997.09.23 |
申请人 |
JIANG TONGBI;COBBLEY CHAD A.;VANNORTWICK JOHN |
发明人 |
JIANG TONGBI;COBBLEY CHAD A.;VANNORTWICK JOHN |
分类号 |
B41C1/14;B41N1/24;H05K3/12;(IPC1-7):B05C11/11 |
主分类号 |
B41C1/14 |
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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