Method of manufacturing liquid ejecting head, method of manufacturing liquid ejecting apparatus and method of manufacturing piezoelectric element

US8991052B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8991052-B2
Application numberUS-201213707035-A
CountryUS
Kind codeB2
Filing dateDec 6, 2012
Priority dateDec 8, 2011
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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Abstract

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A method of manufacturing a liquid ejecting head includes forming a first electrode made of platinum, forming a buffer layer made of a compound having a pyrochlore structure that contains bismuth or platinum on the first electrode, forming an oxide layer made of an oxide containing bismuth on the buffer layer, forming a piezoelectric layer made of a compound having a perovskite structure that contains bismuth by burning the oxide layer, and forming a second electrode on the piezoelectric layer.

First claim

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What is claimed is: 1. A method of manufacturing a liquid ejecting head comprising: forming a first electrode made of platinum; forming a buffer layer made of a compound having a pyrochlore structure that contains bismuth (Bi) or platinum (Pt) on the first electrode; forming an oxide layer made of an oxide containing bismuth on the buffer layer; forming a piezoelectric layer made of a compound having a perovskite structure that contains bismuth by burning the oxide layer; an…

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What does patent US8991052B2 cover?
A method of manufacturing a liquid ejecting head includes forming a first electrode made of platinum, forming a buffer layer made of a compound having a pyrochlore structure that contains bismuth or platinum on the first electrode, forming an oxide layer made of an oxide containing bismuth on the buffer layer, forming a piezoelectric layer made of a compound having a perovskite structure that c…
Who is the assignee on this patent?
Seiko Epson Corp
What technology area does this patent fall under?
Primary CPC classification H01L41/22. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).