JP2010221420A - 圧電アクチュエータ、圧電アクチュエータの製造方法、液体吐出ヘッド、液体吐出ヘッドの製造方法及び画像形成装置 - Google Patents
圧電アクチュエータ、圧電アクチュエータの製造方法、液体吐出ヘッド、液体吐出ヘッドの製造方法及び画像形成装置 Download PDFInfo
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Abstract
【解決手段】 成膜法(スパッタ法)により配向を有するように形成された圧電体を適用する。これにより、繰り返し駆動しても分極方向が容易に変化しないようにすることができる。また、振動板の変位量が安定し、耐久性が高い圧電アクチュエータ及び該圧電アクチュエータを備える液体吐出ヘッドを実現することできる。更に、スパッタ法により配向を有するように形成された圧電体は、耐電圧が高いので、圧電アクチュエータ134印加する電圧を高くして(一例で3kV/mm以上、25kV/mm以下)、振動板130の変位量を大きくすることできる。
【選択図】 図4
Description
まず、本発明に係る圧電アクチュエータを備える液体吐出ヘッド及び画像形成装置(インクジェット記録装置)の構成について説明する。図1は、本発明の一実施形態に係るインクジェット記録装置を模式的に示す図であり、図2は、インクジェット記録装置の印字部の周辺を示す平面図である。
図4は、本発明の一実施形態に係る液体吐出ヘッドを示す図である。図4(a)は液体吐出ヘッドの上面を示す平面図であり、図4(b)は図4(a)の(b)−(b)断面図である。
本実施形態に係る圧電層110は、スパッタ法により配向を有するように形成された圧電体から構成される。以下、スパッタ法により配向を有するように形成された圧電体(実施例)の物性について、セラミックス焼成法により形成された圧電体セラミックス(比較例)と比較して説明する。なお、本実施例に係る圧電体をスパッタにより形成するときの条件は、電力500W、ガス圧力1.0Pa、基板温度550℃とする。
図9及び図10は、本発明の一実施形態に係る圧電アクチュエータを備えた液体吐出ヘッドの製造方法の工程を示す断面図である。
Claims (12)
- 成膜法により所定の配向方向に配向を有するように形成された圧電層と、
前記圧電層の前記配向方向に略垂直な同一面上に配置され、前記圧電層に対して、前記配向方向に略垂直な方向に電界を印加するための電極対と、
を備える圧電アクチュエータ。 - 前記圧電層は、振動板上に設けられ、
前記電極対は、前記圧電層に対して前記振動板とは反対側の面に配置される請求項1記載の圧電アクチュエータ。 - 平面に沿って配置された複数の圧力室と、
前記圧力室の容積を変化させて圧力室内の液体に圧力を付与する圧電アクチュエータとを備え、
前記圧電アクチュエータが、
成膜法により所定の配向方向に配向を有するように形成された圧電層と、
前記圧電層の前記配向方向に略垂直な同一面上に配置され、前記圧電層に対して、前記配向方向に略垂直な方向に電界を印加するための電極対と、
を備える液体吐出ヘッド。 - 前記圧電層は、振動板上に設けられ、
前記電極対は、前記圧電層に対して前記振動板とは反対側の面に配置され、
前記振動板は、前記圧力室の一壁面を構成する請求項3記載の液体吐出ヘッド。 - 前記圧電層が、前記複数の圧力室の一壁面を構成する請求項3記載の液体吐出ヘッド。
- 前記電極対が、前記平面に直交する面から見て、前記圧力室と略相似形の環状の第1の電極と、前記第1の電極の内側に配置された第2の電極とを備える請求項3から5のいずれか1項記載の液体吐出ヘッド。
- 請求項3から6のいずれか1項記載の液体吐出ヘッドと、
前記電極対に電圧を印加する電圧印加手段と、
前記圧電素子に生じさせる電界の強度が3kV/mm以上、25kV/mm以下になるように、前記電極対に印加する電圧を制御する電圧制御手段と、
を備える画像形成装置。 - 成膜法により所定の配向方向に配向を有するように圧電層を形成するステップと、
前記圧電層の前記配向方向に略垂直な同一面上に、前記圧電層に対して、前記配向方向に略垂直な方向に電界を印加するための電極対を形成するステップと、
を備える圧電アクチュエータの製造方法。 - 前記圧電層は、振動板上に設けられ、
前記電極対は、前記圧電層に対して前記振動板とは反対側の面に配置される請求項8記載の圧電アクチュエータの製造方法。 - 平面に沿って配置された複数の圧力室と、前記圧力室の容積を変化させて圧力室内の液体に圧力を付与する圧電アクチュエータとを備える液体吐出ヘッドの製造方法であって、
成膜法により所定の配向方向に配向を有するように圧電層を形成するステップと、
前記圧電層の前記配向方向に略垂直な同一面上に、前記圧電層に対して、前記配向方向に略垂直な方向に電界を印加するための電極対を形成するステップと、
を備える液体吐出ヘッドの製造方法。 - 前記圧電層は、振動板上に設けられ、
前記電極対は、前記圧電層に対して前記振動板とは反対側の面に配置され、
前記振動板は、前記圧力室の一壁面を構成する請求項10記載の液体吐出ヘッドの製造方法。 - 前記圧電層が、前記複数の圧力室の一壁面を構成する請求項10記載の液体吐出ヘッドの製造方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009068556A JP2010221420A (ja) | 2009-03-19 | 2009-03-19 | 圧電アクチュエータ、圧電アクチュエータの製造方法、液体吐出ヘッド、液体吐出ヘッドの製造方法及び画像形成装置 |
| US12/726,169 US8382257B2 (en) | 2009-03-19 | 2010-03-17 | Piezoelectric actuator, method of manufacturing piezoelectric actuator, liquid ejection head, method of manufacturing liquid ejection head and image forming apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009068556A JP2010221420A (ja) | 2009-03-19 | 2009-03-19 | 圧電アクチュエータ、圧電アクチュエータの製造方法、液体吐出ヘッド、液体吐出ヘッドの製造方法及び画像形成装置 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012204352A (ja) * | 2011-03-23 | 2012-10-22 | Konica Minolta Holdings Inc | 薄膜圧電体デバイス |
| JP2012206389A (ja) * | 2011-03-30 | 2012-10-25 | Seiko Epson Corp | 液体噴射ヘッドの製造方法及び液体噴射ヘッド |
| JP2013098508A (ja) * | 2011-11-07 | 2013-05-20 | Konica Minolta Holdings Inc | 圧電素子およびその製造方法と、超音波送受信プローブ |
| JP2018199291A (ja) * | 2017-05-29 | 2018-12-20 | セイコーエプソン株式会社 | 圧電デバイス、液体吐出ヘッド、液体吐出装置 |
| JP2019101407A (ja) * | 2017-12-05 | 2019-06-24 | 國家中山科學研究院 | 光均一性を向上できる中空ナノ構造の二次光学レンズの製作方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6041527B2 (ja) * | 2012-05-16 | 2016-12-07 | キヤノン株式会社 | 液体吐出ヘッド |
| JP6981046B2 (ja) * | 2017-05-29 | 2021-12-15 | セイコーエプソン株式会社 | 圧電デバイス、液体吐出ヘッド、液体吐出装置 |
| JP2018199292A (ja) * | 2017-05-29 | 2018-12-20 | セイコーエプソン株式会社 | 圧電デバイス、液体吐出ヘッド、液体吐出装置 |
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|---|---|---|---|---|
| JP2003347618A (ja) * | 2002-05-28 | 2003-12-05 | Matsushita Electric Ind Co Ltd | 圧電素子、インクジェットヘッド及びこれらの製造方法、並びにインクジェット式記録装置 |
| JP2004136461A (ja) * | 2002-10-15 | 2004-05-13 | Brother Ind Ltd | 液体圧力発生機構 |
| JP2004223979A (ja) * | 2003-01-27 | 2004-08-12 | Seiko Epson Corp | 液体噴射ヘッドの駆動方法及び液体噴射装置 |
| JP2008254206A (ja) * | 2007-03-30 | 2008-10-23 | Fujifilm Corp | 圧電素子製造方法及び液体吐出ヘッド製造方法 |
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| JP4207228B2 (ja) | 2005-09-29 | 2009-01-14 | ブラザー工業株式会社 | インクジェットプリンタ |
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2010
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| JP2003347618A (ja) * | 2002-05-28 | 2003-12-05 | Matsushita Electric Ind Co Ltd | 圧電素子、インクジェットヘッド及びこれらの製造方法、並びにインクジェット式記録装置 |
| JP2004136461A (ja) * | 2002-10-15 | 2004-05-13 | Brother Ind Ltd | 液体圧力発生機構 |
| JP2004223979A (ja) * | 2003-01-27 | 2004-08-12 | Seiko Epson Corp | 液体噴射ヘッドの駆動方法及び液体噴射装置 |
| JP2008254206A (ja) * | 2007-03-30 | 2008-10-23 | Fujifilm Corp | 圧電素子製造方法及び液体吐出ヘッド製造方法 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012204352A (ja) * | 2011-03-23 | 2012-10-22 | Konica Minolta Holdings Inc | 薄膜圧電体デバイス |
| JP2012206389A (ja) * | 2011-03-30 | 2012-10-25 | Seiko Epson Corp | 液体噴射ヘッドの製造方法及び液体噴射ヘッド |
| JP2013098508A (ja) * | 2011-11-07 | 2013-05-20 | Konica Minolta Holdings Inc | 圧電素子およびその製造方法と、超音波送受信プローブ |
| JP2018199291A (ja) * | 2017-05-29 | 2018-12-20 | セイコーエプソン株式会社 | 圧電デバイス、液体吐出ヘッド、液体吐出装置 |
| JP2019101407A (ja) * | 2017-12-05 | 2019-06-24 | 國家中山科學研究院 | 光均一性を向上できる中空ナノ構造の二次光学レンズの製作方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100238216A1 (en) | 2010-09-23 |
| US8382257B2 (en) | 2013-02-26 |
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