Patent ID: 11958292
Assignee: FUNAI ELECTRIC CO., LTD.
Field: Optics (Instruments)
Classification: CPC B  G | IPC B  G

Claim 9:
10. A fluid ejection head comprising:
a semiconductor substrate containing a plurality fluid ejection actuators on a device surface thereof and one or more fluid supply vias etched therethrough;
a flow feature layer applied to the device surface of the semiconductor substrate, wherein the flow feature layer has fluid channels and fluid ejection chambers imaged and developed therein; and
a composite photoresist nozzle plate laminated to the flow feature layer, wherein the composite photoresist nozzle plate comprises a photoresist layer devoid of a phenoxy resin adjacent to the flow feature layer, and a photoresist layer comprising a phenoxy resin adjacent to the photoresist layer devoid of a phenoxy resin.