Thick film layers and methods relating thereto

Details Thick film layers and methods relating thereto Thick film layers and methods relating thereto

2011-08-30

2011-08-30

Duda, Kathleen (Department: 1722)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

C430S320000, C430S330000

Reexamination Certificate

active

08007990

ABSTRACT:
Thick film layers for a micro-fluid ejection head, micro-fluid ejection heads, and methods for making micro-fluid ejection head and thick film layers. One such thick film layer is derived from a difunctional epoxy component having a weight average molecular weight ranging from about 2500 to about 4000 Daltons, a photoacid generator, an aryl ketone solvent, and an adhesion enhancing component. One such thick film layer has a cross-link density upon curing that increases the dimensional stability of the thick film layer sufficient to provide flow features therein having substantially vertical walls.

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