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US 12,583,222 B2Granted
Solvent compatible nozzle plate
AssigneeBrady Worldwide, Inc.
InventorSean T. Weaver
Life of this patent
Estimating the term…
Abstract
A composite photoresist material and method of making the composite photoresist material. The composite photoresist material includes: a photoresist layer devoid of a phenoxy resin, and a photoresist layer containing a phenoxy resin.
Claims17
A method for making a fluid ejection head, comprising the steps of:
- (A) applying a layer of photoresist material to a carrier film, the layer of photoresist material comprising a phenoxy resin;
- (B) drying the layer to provide a dried layer;
- (C) applying a layer of photoresist material devoid of a phenoxy resin to the dried layer;
- (D) drying the layer devoid of the phenoxy resin to provide a composite photoresist laminate nozzle plate;
- and
- (E) laminating the composite photoresist laminate nozzle plate to a flow feature layer to provide the fluid ejection head, wherein the photoresist layer devoid of a phenoxy resin is configured to be adjacent to the flow feature layer of the fluid ejection head.
3 more elements
A method for making a fluid ejection head, comprising:
- (A) applying a layer of photoresist material to a carrier film, the layer of photoresist material comprising a phenoxy resin;
- (B) drying the layer to provide a dried layer;
- (C) applying a layer of photoresist material devoid of a phenoxy resin to the dried layer;
- (D) drying the layer devoid of the phenoxy resin to provide a composite photoresist laminate nozzle plate;
- (E) removing the composite photoresist laminate nozzle plate from the carrier film;
- (F) laminating the composite photoresist laminate nozzle plate to a flow feature layer attached to a semiconductor substrate, wherein the photoresist layer devoid of a phenoxy resin is configured to be adjacent to the flow feature layer of the fluid ejection head;
- and
- (G) imaging and developing nozzle holes in the composite photoresist laminate nozzle plate to provide the fluid ejection head.
5 more elements
Dependencies are inferred from the claim text.