JP6582919B2 - Memsデバイス、液体噴射ヘッド、及び、液体噴射装置 - Google Patents
Memsデバイス、液体噴射ヘッド、及び、液体噴射装置 Download PDFInfo
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- JP6582919B2 JP6582919B2 JP2015228459A JP2015228459A JP6582919B2 JP 6582919 B2 JP6582919 B2 JP 6582919B2 JP 2015228459 A JP2015228459 A JP 2015228459A JP 2015228459 A JP2015228459 A JP 2015228459A JP 6582919 B2 JP6582919 B2 JP 6582919B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B3/00—Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
- B81B3/0018—Structures acting upon the moving or flexible element for transforming energy into mechanical movement or vice versa, i.e. actuators, sensors, generators
- B81B3/0032—Structures for transforming energy not provided for in groups B81B3/0021 - B81B3/0029
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B7/00—Microstructural systems; Auxiliary parts of microstructural devices or systems
- B81B7/0032—Packages or encapsulation
- B81B7/0061—Packages or encapsulation suitable for fluid transfer from the MEMS out of the package or vice versa, e.g. transfer of liquid, gas, sound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
- B41J2002/14241—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm having a cover around the piezoelectric thin film element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
- B41J2002/14266—Sheet-like thin film type piezoelectric element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2002/14491—Electrical connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/11—Embodiments of or processes related to ink-jet heads characterised by specific geometrical characteristics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2202/00—Embodiments of or processes related to ink-jet or thermal heads
- B41J2202/01—Embodiments of or processes related to ink-jet heads
- B41J2202/18—Electrical connection established using vias
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/05—Microfluidics
- B81B2201/052—Ink-jet print cartridges
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
前記積層構造体は、前記駆動領域から当該駆動領域よりも外側の非駆動領域まで延在され、且つ、当該延在方向において前記第1の電極層及び前記第1の誘電体層は、前記第2の電極層よりも外側まで延在され、
前記延在方向における前記第2の電極層の端を覆う第2の誘電体層が、前記非駆動領域における前記第2の電極層、及び、当該第2の電極層よりも前記延在方向の外側に形成された前記第1の誘電体層に積層され、
前記第2の電極層と電気的に接続された第3の電極層が、前記第2の誘電体層、及び、当該第2の誘電体層から外れた領域における前記第2の電極層に積層され、
前記延在方向において、前記第2の電極層の端は、前記第3の電極層の前記第2の誘電体層側の端よりも前記駆動領域側に形成されたことを特徴とする。
前記第1の誘電体層が圧電体層であり、
前記第2の誘電体層が樹脂であることを特徴とする。
V1=(C2×V)/(C1+C2)
この式から分かるように、樹脂部43の単位面積当たりの静電容量C2が小さいほど、圧電体層38の積層方向にかかる電圧V1が小さくなる。すなわち、樹脂部43の単位面積当たりの静電容量C2を小さくすることで、圧電素子32の端部(下電極層37と導電層44との間に圧電体層38と樹脂部43とが挟まれた領域)における耐圧を高めることができる。このため、樹脂部43の単位体積当たりの静電容量がなるべく小さくなるように構成することが望ましい。
d2/d1≧ε2/ε1
例えば、圧電体層38の膜厚d1が1000nm、圧電体層38の比誘電率ε1が1600、樹脂部43の比誘電率ε2が4の場合、樹脂部43の膜厚d2が約2.5nm以上であれば、圧電素子32の端部における耐圧が従来の構成の2倍以上となる。
Claims (3)
- 第1の電極層、第1の誘電体層、及び第2の電極層がこの順に積層された積層構造体を有する駆動領域を備え、
前記積層構造体は、前記駆動領域から当該駆動領域よりも外側の非駆動領域まで延在され、且つ、当該延在方向において前記第1の電極層及び前記第1の誘電体層は、前記第2の電極層よりも外側まで延在され、
前記延在方向における前記第2の電極層の端を覆う第2の誘電体層が、前記非駆動領域における前記第2の電極層、及び、当該第2の電極層よりも前記延在方向の外側に形成された前記第1の誘電体層に積層され、
前記第2の電極層と電気的に接続された第3の電極層が、前記第2の誘電体層、及び、当該第2の誘電体層から外れた領域における前記第2の電極層に積層され、
前記延在方向において、前記第2の電極層の端は、前記第3の電極層の前記第2の誘電体層側の端よりも前記駆動領域側に形成され、
前記積層構造体の積層方向に直交し、且つ前記延在方向に直交する方向において、前記第2の誘電体層と重なった前記第3の電極層の寸法は、前記第1の電極層の寸法よりも大きいことを特徴とするMEMSデバイス。 - 請求項1に記載のMEMSデバイスは、前記駆動領域により少なくとも一部が区画された圧力室と、前記圧力室に連通するノズルと、を備えた液体噴射ヘッドであって、
前記第1の誘電体層が圧電体層であり、
前記第2の誘電体層が樹脂であることを特徴とする液体噴射ヘッド。 - 請求項2に記載の液体噴射ヘッドを備えたことを特徴とする液体噴射装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015228459A JP6582919B2 (ja) | 2015-11-24 | 2015-11-24 | Memsデバイス、液体噴射ヘッド、及び、液体噴射装置 |
US15/354,851 US9770907B2 (en) | 2015-11-24 | 2016-11-17 | MEMS device, liquid ejecting head, and liquid ejecting apparatus |
CN201611021448.7A CN107032285B (zh) | 2015-11-24 | 2016-11-21 | Mems器件、液体喷射头以及液体喷射装置 |
Applications Claiming Priority (1)
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JP2015228459A JP6582919B2 (ja) | 2015-11-24 | 2015-11-24 | Memsデバイス、液体噴射ヘッド、及び、液体噴射装置 |
Publications (2)
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JP2017098395A JP2017098395A (ja) | 2017-06-01 |
JP6582919B2 true JP6582919B2 (ja) | 2019-10-02 |
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US (1) | US9770907B2 (ja) |
JP (1) | JP6582919B2 (ja) |
CN (1) | CN107032285B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6961976B2 (ja) * | 2017-03-29 | 2021-11-05 | ブラザー工業株式会社 | 液体噴射ヘッド |
JP7056059B2 (ja) * | 2017-09-29 | 2022-04-19 | ブラザー工業株式会社 | 複合基板 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6758554B2 (en) * | 2001-09-13 | 2004-07-06 | Seiko Epson Corporation | Liquid jetting head, method of manufacturing the same, and liquid jetting apparatus incorporating the same |
US6979077B2 (en) * | 2002-02-20 | 2005-12-27 | Brother Kogyo Kabushiki Kaisha | Ink-jet head and ink-jet printer having ink-jet head |
US7562428B2 (en) | 2002-09-24 | 2009-07-21 | Brother Kogyo Kabushiki Kaisha | Manufacturing an ink jet head |
JP2005101527A (ja) * | 2003-08-21 | 2005-04-14 | Seiko Epson Corp | 電子部品の実装構造、電気光学装置、電子機器及び電子部品の実装方法 |
CN100540314C (zh) * | 2005-01-26 | 2009-09-16 | 精工爱普生株式会社 | 液体喷射头和液体喷射装置 |
JP2010192721A (ja) | 2009-02-19 | 2010-09-02 | Fujifilm Corp | 圧電素子とその製造方法、及び液体吐出装置 |
JP5459182B2 (ja) | 2010-11-16 | 2014-04-02 | ブラザー工業株式会社 | 液体吐出ヘッド及びその製造方法 |
JP5741101B2 (ja) * | 2011-03-18 | 2015-07-01 | セイコーエプソン株式会社 | 液体噴射ヘッド、液体噴射装置及び液体噴射装置の製造方法 |
JP2013095088A (ja) * | 2011-11-02 | 2013-05-20 | Konica Minolta Holdings Inc | インクジェットヘッドおよびその製造方法と、インクジェット描画装置 |
JP2014072511A (ja) * | 2012-10-02 | 2014-04-21 | Ngk Insulators Ltd | 積層体 |
JP6318682B2 (ja) * | 2014-02-19 | 2018-05-09 | セイコーエプソン株式会社 | 圧電アクチュエーター、及び液体噴射ヘッド |
JP6504348B2 (ja) * | 2015-03-16 | 2019-04-24 | セイコーエプソン株式会社 | ヘッド及び液体噴射装置 |
JP2017052135A (ja) * | 2015-09-08 | 2017-03-16 | セイコーエプソン株式会社 | Memsデバイス、液体噴射ヘッド、液体噴射装置、memsデバイスの製造方法、及び液体噴射ヘッドの製造方法 |
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2015
- 2015-11-24 JP JP2015228459A patent/JP6582919B2/ja active Active
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2016
- 2016-11-17 US US15/354,851 patent/US9770907B2/en active Active
- 2016-11-21 CN CN201611021448.7A patent/CN107032285B/zh active Active
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Publication number | Publication date |
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JP2017098395A (ja) | 2017-06-01 |
CN107032285A (zh) | 2017-08-11 |
US20170144442A1 (en) | 2017-05-25 |
US9770907B2 (en) | 2017-09-26 |
CN107032285B (zh) | 2021-08-10 |
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