High speed etching of polyimide film

Details High speed etching of polyimide film High speed etching of polyimide film

1981-12-03

1984-01-17

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156644, 156654, 252 795, B29C 1708, B44C 122, C03C 1500, C03C 2506

Patent

active

044262531

ABSTRACT:
An aqueous solution of ethyl or propyl alcohol containing a basic compound such as KOH is shown to etch the surface of polyimide material up to 400 times faster than conventional aqueous KOH etching solutions.

REFERENCES:
patent: 3361589 (1968-01-01), Lindsey
patent: 3770528 (1973-11-01), Hermes
patent: 3791848 (1974-02-01), DeAngelo
patent: 4369090 (1983-01-01), Wilson et al.

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