Compositions for diffusion patterning

Details Compositions for diffusion patterning Compositions for diffusion patterning

1996-04-04

1997-08-05

Smith, Jeffrey T.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524297, 524286, 524317, 524548, C08K 551, C08K 510

Patent

active

056543549

ABSTRACT:
A non-photoformable composition for use as the first unpatterned layer in a diffusion patterning process consisting essentially of:
A. a film-forming solid organic polymer having no free acid groups containing a plurality of acid liable groups which are acid reactive;
B. a plasticizer in which the solid organic polymer is incompletely soluble;
C. volatile organic solvent, the ratio of polymer to plasticizer being such that when the volatile organic solvent is removed from the organic medium, the resulting solvent-free polymer/plasticizer dispersion is specularly nonreflective; and
D. finely divided particles of dielectric solids.

REFERENCES:
patent: 3951839 (1976-04-01), Gander
patent: 4663186 (1987-05-01), Indyk et al.
patent: 5019485 (1991-05-01), Mammato et al.
patent: 5032216 (1991-07-01), Felten et al.
patent: 5039596 (1991-08-01), Wu et al.
patent: 5120629 (1992-06-01), Baver et al.
patent: 5270078 (1993-12-01), Walker et al.

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