发明名称 |
SELECTIVE DEPOSITION OF CIRCUIT-PROTECTIVE POLYMERS |
摘要 |
<p>A composition for electrophoretic deposition of an insulating, protective coating. The composition comprises a cationic resin emulsion; and a curative mixed with the cationic resin emulsion. The composition after electrophoretic deposition and curing provides the protective coating that has a concentration of extractable ionic contaminants less than about 200 nanograms/cm<2>; and a concentration of labile components less than about 36,000 nanograms/cm<2>. A coating composition according to the present invention provides an article in the form of a flexible printed circuit, used as an interconnect, comprising a film substrate and a plurality of conductive traces adjacent to a surface of the film substrate to receive the insulating protective coating using electrophoretic deposition techniques.</p> |
申请公布号 |
EP1406977(A1) |
申请公布日期 |
2004.04.14 |
申请号 |
EP20020721534 |
申请日期 |
2002.03.21 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
POCIUS, ALPHONSUS, V.;LATOURELLE, RITA, A. |
分类号 |
C09D4/00;C09D5/02;C09D5/44;C09D163/00;C09D201/02;H01L23/498;H05K1/00;H05K3/00;H05K3/28;(IPC1-7):C09D5/44 |
主分类号 |
C09D4/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|