Stripping method for removing resist from a printed circuit boar

Details Stripping method for removing resist from a printed circuit boar Stripping method for removing resist from a printed circuit boar

1990-06-20

1992-09-08

Beck, Shrive

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 541, 427271, 430329, 430313, C23C 2600

Patent

active

051457172

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.

REFERENCES:
patent: 3930857 (1976-01-01), Bendz
patent: 4302530 (1981-11-01), Zemel
patent: 4458617 (1985-10-01), Miyatani et al.
patent: 4698294 (1987-10-01), Lau
patent: 4711835 (1987-12-01), Dufour
patent: 4731125 (1988-03-01), Carr
patent: 4759774 (1988-07-01), Hochberg et al.
patent: 4912020 (1990-03-01), King
patent: 4983252 (1991-01-01), Masui

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