Process for cleaning a circuit board

Details Process for cleaning a circuit board Process for cleaning a circuit board

1985-09-11

1986-08-05

Corbin, Arthur L.

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 29, C23G 102, C23G 114

Patent

active

046041443

ABSTRACT:
In a method of cleaning a circuit board having a silicone encapsulated hybrid integrated circuit thereon, subsequent to aqueous solder flux residue removal with an ionic detergent, the board is cleaned with a low molecular weight organic acid such as formic, acetic or oxalic acid.

REFERENCES:
patent: 3181984 (1965-05-01), Tillis
patent: 3700591 (1972-10-01), Higley
patent: 3794523 (1974-02-01), Thompson
patent: 3957529 (1976-05-01), Alexander et al.
patent: 4014715 (1977-03-01), Preston
patent: 4332624 (1982-06-01), Page et al.
patent: 4397753 (1983-08-01), Czaja
patent: 4547304 (1985-10-01), McEntire et al.

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