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US 2019/0291431 A1Published application
Liquid ejecting head and liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorsYoshiki SUGAWARA, Takeshi YASOSHIMA, Miyuki MURAMOTO
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Abstract
A liquid ejecting head includes a piezoelectric element which includes a piezoelectric layer, and a first electrode and a second electrode sandwiching the piezoelectric layer therebetween, a leading-out wiring provided on an upper portion of the piezoelectric element and including a wiring layer made of gold or platinum and an underlayer which are patterned, and an insulating protective film which covers at least an exposed portion on the underlayer of the leading-out wiring.
Claims18
A liquid ejecting head comprising:
- a piezoelectric element which includes a piezoelectric layer, and a first electrode and a second electrode sandwiching the piezoelectric layer therebetween;
- a leading-out wiring provided on an upper portion of the piezoelectric element and including a wiring layer made of gold or platinum and an underlayer which are patterned;
- and
- an insulating protective layer which covers at least an exposed portion on the underlayer of the leading-out wiring.
1 more element
Dependencies are inferred from the claim text.