H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 3/26 (2006.01) B24C 1/04 (2006.01) B24C 3/32 (2006.01) G03F 7/36 (2006.01) G03F 7/42 (2006.01) H05K 3/28 (2006.01)
Patent
CA 2044693
21 PE-0206-A TITLE STRIPPING METHOD FOR REMOVING RESIST FROM A PRINTED CIRCUIT BOARD ABSTRACT A stripping method is provided to remove processed photoresist images from printed circuit substrates without damage to underlying high density circuitry. A solid particulate blast process is used to remove the resist images wherein the polymeric particles having a Mho hardness in the range from 2.0 to 4.0 are used as the blast media. 21
Drury Robert F.
E. I. Du Pont de Nemours And Company
Sim & Mcburney
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