WO2001060621A1 - Tete d'impression a jet d'encre et procede de fabrication correspondant - Google Patents
Tete d'impression a jet d'encre et procede de fabrication correspondant Download PDFInfo
- Publication number
- WO2001060621A1 WO2001060621A1 PCT/JP2000/000918 JP0000918W WO0160621A1 WO 2001060621 A1 WO2001060621 A1 WO 2001060621A1 JP 0000918 W JP0000918 W JP 0000918W WO 0160621 A1 WO0160621 A1 WO 0160621A1
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- WO
- WIPO (PCT)
- Prior art keywords
- individual electrode
- recording head
- jet recording
- ink jet
- ink
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 22
- 239000000758 substrate Substances 0.000 claims description 45
- 239000010409 thin film Substances 0.000 claims description 13
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- 238000000059 patterning Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 41
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 24
- 239000000395 magnesium oxide Substances 0.000 description 24
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 24
- 239000010408 film Substances 0.000 description 18
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- 238000007639 printing Methods 0.000 description 9
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
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- 238000010030 laminating Methods 0.000 description 2
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements
-
- 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
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04541—Specific driving circuit
-
- 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
- B41J2/16—Production of nozzles
- B41J2/1607—Production of print heads with piezoelectric elements
- B41J2/161—Production 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1623—Manufacturing processes bonding and adhesion
-
- 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1631—Manufacturing processes photolithography
-
- 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1632—Manufacturing processes machining
-
- 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/164—Manufacturing processes thin film formation
- B41J2/1646—Manufacturing processes thin film formation thin film formation by sputtering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49128—Assembling formed circuit to base
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49401—Fluid pattern dispersing device making, e.g., ink jet
Definitions
- the present invention relates to an ink jet recording head, and more particularly to an ink jet recording head manufactured by using a thin film forming technique employed in a semiconductor manufacturing process or the like.
- a printer device equipped with an ink jet recording head using a piezoelectric element has been devised.
- the ink jet recording head has advantages such as a simple structure, driving with low power consumption, high resolution, easy colorization, and low noise. Therefore, inkjet recording heads are expected to be the mainstream of recording heads in the future.
- FIG. 1 shows an example of a conventional ink jet recording head.
- FIG. 1 (A) is a diagram showing a schematic configuration of the individual electrode 102 of the ink jet recording head 100 and its periphery.
- FIG. 1 (B) shows a schematic configuration of the inkjet recording head 100 as viewed in the direction of arrows A—A in FIG. 1 (A).
- the ink jet recording head 100 is provided with a large number of nozzles 107 and forms characters, images, etc. with a large number of ink dots, but only two head portions are shown in FIGS. 1 (A) and 1 (B). Is shown.
- the ink jet recording head 100 includes an ink supply system including an ink chamber 106, a pressure generating system including a piezoelectric element 103 that generates pressure in the ink chamber 106, and an ink chamber 100. It is composed of a nozzle plate 108 having a nozzle 107 for ejecting ink droplets in accordance with the pressure in the nozzle 6.
- the ink supply system includes a common ink path 113 supplying ink from an ink tank (not shown) and an ink supply path 112 connecting the common ink path 113 to each ink chamber 106. It is configured.
- the pressure generating system includes a vibrating plate 104 that forms a wall on one side of the ink chamber 106, a piezoelectric element 103 disposed on and in contact with the vibrating plate 104, and a piezoelectric element 103 that is in contact with the piezoelectric element 103. Placed And individual electrodes 102 and the like.
- the vibration plate 104 is formed of a conductive material such as Cr or Ni—Cr, and also serves as a common electrode, and is arranged so as to collectively cover the plurality of ink chambers 106.
- the vibrating plate 104 is firmly joined to the peripheral wall of each ink chamber 106, vibrates for each ink chamber 106, and has no effect on the adjacent ink chamber 106. It is vibration-proof so that it does not come out.
- the piezoelectric elements 103 and the individual electrodes 102 are provided individually corresponding to the respective ink chambers 106.
- the piezoelectric element 103 receives the supply of electric charge between the individual electrode 102 and the diaphragm 104 (common electrode)
- the piezoelectric element 103 is displaced in accordance with the amount of the electric charge.
- the diaphragm 104 is bent to generate pressure in the ink chamber 106, and ink is ejected from the nozzle 107 to perform printing such as printing on a printing medium.
- the electric charge to each piezoelectric element 103 is supplied by a driving signal 114 from the printer body (not shown) through each individual electrode 102 and diaphragm 104.
- the nozzle 107 is located at a position facing the diaphragm 104 with the ink chamber 106 interposed therebetween.
- ink jet recording head 100 the individual electrodes 102, the diaphragm 104, the piezoelectric element 103, and the like need to be formed into a very thin film using a metal or a piezoelectric material. .
- ink jet recording heads have recently been manufactured using thin film forming techniques such as sputtering and etching, which are employed in the semiconductor manufacturing field.
- FIG. 1 (C) shows a schematic configuration of the ink jet recording head 100 viewed in the direction of the arrow BB in FIG. 1 (B).
- the inkjet recording head 100 is manufactured by, for example, laminating a plurality of layers (films) on a magnesium oxide (MgO) substrate 101. Each of these layers is sequentially laminated while being processed into a required shape, and the final form is an ink jet recording head 100.
- reference numeral 101 denotes a substrate, which is removed by an etching method in the final manufacturing process, but a part of the substrate is left to reinforce the ink jet recording head 100. May be The substrate 101 which is left even in the ink jet recording head 100 shown in FIG. 1 is shown.
- a metal thin film can be formed on the substrate 101 at a time by, for example, a sputtering method.
- a layer having a desired pattern can be formed at a time.
- an ink jet recording head 100 can be efficiently manufactured by performing a collective processing by a single etching process after laminating all the layers. .
- the individual electrodes 102 and the piezoelectric elements 103 need to have substantially the same shape. Therefore, from the viewpoint of manufacturing efficiency, after the individual electrode forming layer and the piezoelectric element forming layer are successively formed, the etching is performed so that the individual electrode 102 and the piezoelectric element 103 are simultaneously formed.
- the piezoelectric element 103 arranged to bend the diaphragm 104 is connected to the individual electrode lead-out part 1. It will be under 0 2 A. Therefore, when the drive signal 114 is supplied to the piezoelectric element 103, the piezoelectric element 103 is displaced to the piezoelectric element 103 below the drawer 102A that does not need to be displaced. When the unnecessary portion of the piezoelectric element 103 is displaced in this way, for example, the ink supply path 112 is deformed, which adversely affects the particle formation characteristics of the ink ejected from the nozzle 117.
- the individual electrode lead-out portion 102A is extremely thin, for example, formed to a thickness of about 0.2 / zm and is thin, so that there is a risk of heat generation or disconnection, and there is no problem in terms of reliability. Was.
- a main object of the present invention is to provide an ink jet recording head having an individual electrode lead-out portion having a cross section capable of supplying electricity smoothly, in which a piezoelectric element does not exist in unnecessary portions, and a manufacturing method thereof. Is to provide a way. Disclosure of the invention
- An individual electrode including an individual electrode main body formed at a position corresponding to the ink chamber and an individual electrode lead portion for supplying electricity, a piezoelectric element formed in contact with the individual electrode, An ink jet recording head having a diaphragm formed in contact with the piezoelectric element,
- the individual electrode lead-out portion is connected from a position shifted from a surface including an electrode surface of the individual electrode body,
- the piezoelectric element is achieved by an ink jet recording head formed in a shape corresponding to the individual electrode body.
- the piezoelectric element exists in a portion corresponding to the individual electrode main body, and does not exist in the individual electrode lead portion. Therefore, since the piezoelectric element is present in an unnecessary portion and displaced, the particleization characteristics are not deteriorated, and the unnecessary piezoelectric element does not include capacitance, so that the printing characteristics of the ink jet recording head are eliminated. This improves the ink jet recording head, which can reduce driving costs.
- the individual electrode lead-out portion is located at a position deviated from the individual electrode body in the manufacturing process and can be formed separately, so that a sufficient cross-sectional area can be provided as an electric supply path. Therefore, there is no risk of heat generation, disconnection, and the like of the individual electrode lead-out portion, and the ink jet recording head has improved reliability.
- the individual electrode lead-out portion is an ink jet recording head, which is in contact with and faces the electrode surface of the individual electrode body.
- a printer equipped with the above-mentioned ink jet recording head is a reliable device having improved printing characteristics and reduced driving power.
- a method for manufacturing an ink jet recording head comprising the steps of sequentially forming an individual electrode layer and a piezoelectric element layer on a substrate using a thin film forming technique, and then simultaneously patterning the individual electrode layer and the piezoelectric element layer.
- Head manufacturing method Is also achieved by
- the conductive material serving as the individual electrode bow I projecting portion is refilled in the groove before the individual electrode layer is formed on the substrate. Therefore, by forming a groove so that the cross section of the individual electrode lead-out portion can supply sufficient electricity, the ink jet recording head after the end of the manufacturing process has a desired individual electrode made of a conductive material. A drawer can be formed.
- the individual electrode layer and the piezoelectric element layer are simultaneously patterned, efficient processing is performed as in the conventional case.
- the patterning step here is performed by the individual electrode (individual electrode body) formed at a position corresponding to the ink chamber. And a piezoelectric element.
- an ink jet recording head in which a piezoelectric element does not exist below an individual electrode lead-out portion can be easily implemented by adding a simple change to a conventional thin film forming technique.
- the groove is formed to a position overlapping with the individual electrode body formed in the step of patterning the individual electrode layer. If an ink jet recording head is manufactured by replenishing a conductive material in advance in the groove formed in this way, the individual electrode lead-out portion comes into surface contact with the electrode surface of the individual electrode main body, thereby increasing reliability. Thus, an ink jet recording head having an improved ink jet recording head can be manufactured.
- the individual electrode of the present invention is composed of the individual electrode main body and the individual electrode lead portion.
- the individual electrode lead portion is formed of a conductive material complementary to the groove provided on the substrate.
- the individual electrode body is formed by processing an individual electrode layer formed on a substrate. Therefore, the height position at which the individual electrode body and the individual electrode lead-out portion are formed is shifted.
- the state in which the individual electrode lead-out portion makes surface contact with the electrode surface of the individual electrode main body refers to a state in which a part of the electrode surface of the individual electrode main body and the distal end side of the linear individual electrode lead-out portion overlap.
- the connection state by such surface contact and the state in which the individual electrode lead-out portion does not extend to the state in which the individual electrode lead portion comes into surface contact with the electrode surface of the individual electrode body are merely line contact. It is said that the individual electrode lead-out portion is connected at a position deviated from the surface including the electrode surface of the individual electrode main body, including the state in which the individual electrodes are connected.
- the reduction rate of the capacitance by the ink jet recording head of the present invention can be obtained by the following equation.
- Capacitance reduction rate (%) (Area of individual electrode lead-out part) * 100Z (Area of piezoelectric element including individual electrode lead-out part)
- FIG. 1 shows an example of a conventional ink jet recording head
- FIG. 1 (A) is a diagram showing a schematic configuration of an individual electrode of an ink jet recording head and the periphery thereof
- FIG. 1 (B) is a diagram of FIG. 1 (A).
- FIG. 1C is a diagram showing a schematic configuration of an ink jet recording head viewed in the direction of arrow A
- FIG. 1C is a schematic view of an ink jet recording head viewed in the direction of arrow B—B in FIG. 1B.
- FIG. 1 shows an example of a conventional ink jet recording head
- FIG. 1 (A) is a diagram showing a schematic configuration of an individual electrode of an ink jet recording head and the periphery thereof
- FIG. 1 (B) is a diagram of FIG. 1 (A).
- FIG. 1C is a diagram showing a schematic configuration of an ink jet recording head viewed in the direction of arrow A
- FIG. 1C is a schematic view of an ink jet recording
- FIG. 2 is a view showing step by step the manufacturing process of the ink ejection energy generating section of the ink jet recording head according to the first embodiment.
- FIG. 3 is a view showing a state in which an ink ejection energy generating section and an ink ejecting section of the ink jet recording head of the first embodiment are joined.
- FIG. 4A is a cross-sectional view showing a schematic configuration of the ink jet recording head of the first embodiment
- FIG. 4B is a view of the ink jet recording head of FIG. 4A as viewed from below. .
- FIG. 5 is a perspective view showing the overall configuration of the ink jet recording head of the first embodiment.
- FIG. 6 is a view for explaining the positional relationship between the individual electrode bow I protruding portion of the ink jet recording head of the second embodiment and the individual electrode main body.
- FIG. 7 is a perspective view showing the overall configuration of the ink jet recording head of the second embodiment.
- FIG. 8 is a schematic side view of a printer equipped with the ink jet recording head of the first embodiment.
- FIG. 2 and FIG. 3 show respective manufacturing steps of an ink jet recording head manufactured by using a thin film forming technique.
- the ink jet recording head 10 of this embodiment includes an ink ejection energy generation unit 1 OA including a piezoelectric element 21 as a half for generating ink ejection energy, and a nozzle 41. And the like, and an ink ejection unit 10B side as a half body for ejecting ink as ink droplets to the outside.
- the piezoelectric element 21 and the individual electrode 22 are thin films formed in the ink discharge energy generating section 10A.
- the manufacturing process of the ink ejection energy generating unit 1OA will be described step by step with reference to FIG.
- a dry film resist (DF) 12 is laminated on the substrate 11.
- the substrate 11 for example, magnesium oxide (MgO) can be used.
- a mask 13 for forming an electrode pattern to be an individual electrode lead-out portion is placed on the dry film resist 12 for exposure.
- the width of the mask 13 here corresponds to the width of the individual electrode lead portion formed later.
- the mask 13 is deleted after the development processing. Since the dry film resist 12 under the mask 13 has been removed by development, a notch 12 A is formed, and the MgO substrate 11 is exposed in this portion.
- the notch 12 A portion of the MgO substrate 11 is etched by ion milling to form a groove 11 A.
- An extraction electrode is formed later based on the groove 11A. Therefore, the depth of the ion milling here corresponds to the depth of the electrode of the individual electrode lead-out portion.
- the ion milling in this case can be performed using, for example, argon (Ar) gas.
- the dry film resist 12 is peeled off.
- the groove 11A is formed on the surface of the substrate 11 with a predetermined width and a predetermined depth. The width and depth define the cross section of the individual electrode lead-out part.
- an electrode layer 14 of, for example, platinum (Pt) is formed on the entire surface of the MgO substrate 11 by using a sputtering method.
- the electrode layer 14 is for forming an individual electrode lead-out portion, and Pt is complemented in the groove 11A.
- Electrode layer 14 In addition to gold, for example, gold (A u) can be used.
- the individual electrode lead-out portion 15 can be formed separately from the individual electrode main body 22.
- the ink ejection energy generating portion 1OA of the ink jet recording head is formed through a process similar to the conventional one.
- Pt is again formed on the MgO substrate 11 by sputtering to form an individual electrode formation layer 16.
- a piezoelectric element forming layer 17 is laminated by sputtering over the entire surface of the individual electrode forming layer 16 of the MgO substrate 11.
- a piezoelectric material such as PZT (Lead Zirconate Titanate) can be used.
- a dry film resist 18 is laminated on the upper surface of the piezoelectric element forming layer 17.
- a mask 19 having a pattern for forming a piezoelectric element and an individual electrode (hereinafter, these are sometimes referred to as an energy generating element?) Is placed on the dry film resist 18.
- the pattern MP included in the mask 19 has an arrangement in which energy generating elements are formed at positions corresponding to the respective ink chambers.
- the pattern MP in this case does not need to form a lead portion on the individual electrode side, and thus the pattern MP is formed in a shape corresponding to the individual electrode body.
- FIG. 2 (L) the pattern MP of the mask 19 is developed.
- the dry film resist 18 at the position corresponding to the energy generating element remains, and in other portions, the dry film resist 18 is removed and the piezoelectric element forming layer 17 is exposed.
- FIG. 2 (M) as in FIG. 2 (D), portions other than the energy generating element where the dry film resist 18 is formed are etched by the ion milling method. By this ion milling treatment, the energy generating element 20 remains below the dry film resist 18 and the MgO substrate 11 is exposed to the other parts. The individual electrode lead-out portion 15 is also exposed so as to form a part of the surface of the MgO substrate 11.
- FIG. 2 (M) portions other than the energy generating element where the dry film resist 18 is formed are etched by the ion milling method.
- the energy generating element 20 remains below the dry film resist 18 and the MgO substrate 11 is exposed to the other parts.
- the individual electrode lead-out portion 15 is also exposed so as to form a
- the dry film resist 18 is peeled off.
- An energy generating element 20 composed of an individual piezoelectric element 21 and an individual electrode body 22 is formed at a predetermined position on the MgO substrate 11, and the individual electrode lead-out portion 15 includes the electrode surface of the individual electrode body They are connected at positions off the plane. As described above, the position of the individual electrode lead-out portion 15 can be adjusted by the groove 11A formed in the MgO substrate 11. In this embodiment, the individual electrode main body 22 and the individual electrode lead-out portion 15 are in a state of slight contact.
- a light-sensitive liquid polyimide 25 is applied along the surface of the MgO substrate 11 on which the energy generating elements 20 are formed.
- FIG. 2 (P) exposure is performed by placing a mask 26 corresponding to the pattern of the energy generating element 20 on the photosensitive liquid polyimide 25.
- the exposed photosensitive liquid polyimide 25 is developed based on the mask 26 pattern, and the unexposed portion (the upper surface portion of the energy generating element 20) is removed.
- chromium (Cr) is formed on the entire surface of the MgO substrate 11 (on the side on which the energy generating element 20 is formed) by a sputtering method to form a diaphragm layer 27.
- a half of the ink jet recording head 10 that generates ink ejection energy that is, a basic skeleton on the side of the ink ejection energy generating unit 10A is formed.
- the diaphragm 27 may be a conductive thin film that also serves as a common electrode, and may be formed using Ni—Cr or the like.
- FIG. 3 is a diagram showing a state in which the ink ejection energy generation unit 1OA and the ink ejection unit 10B are joined.
- One layer (0 first layer) of dry phenolic resist 31 is formed on the surface of the Cr diaphragm 27 (the surface opposite to the energy generating element 20 side), and the pressure chamber 35 is scheduled. The pattern of the space and the space in which the common ink path 36 is planned is exposed.
- a dry film resist 32 is formed as a single layer (DF second layer), and the ink supply path 37, the pressure chamber 35, and the common ink path 36 are to be formed. -Expose the mask.
- a dry film resist 33 is formed as one layer (third layer of DF), and a pattern in a space in which the pressure chamber 35 and the common ink path 36 are to be formed is exposed.
- the ink ejection energy generating unit is 1 OA.
- a dry film resist is laminated on a stainless steel nozzle plate provided with a nozzle hole. Next, the patterns of the ink conduction path 38 and the common ink path 36 are exposed. Develop innolem resist Resist 34 is developed to remove unnecessary portions, and ink conduction path 38 and common ink path 36 are formed on nozzle plate 40 to form ink discharge section 1 OB.
- the ink discharge energy generating section 1OA and the ink discharge section 1OB which have been joined as described above, are joined.
- the dry film resists 31 and 34 are hardened to integrate the MgO substrate 11 and the noble plate 40 into one.
- a resist 45 is applied to the surface of the MgO substrate 11, and the MgO substrate 11 is patterned into a required shape and exposed.
- the patterning here exposes the surface of the individual electrode body 22 of the energy generating element 20 so that the individual piezoelectric element 21 is displaced when receiving the supply of electric charge, and the diaphragm 27 can be bent. Is performed to remove the MgO substrate 11. In order to reinforce the strength of the ink jet recording head 10 after completion, exposure may be performed so as to leave a part of the ink jet recording head 10 for the purpose. Removing the M g O substrate 1 1-B on the energy generating elements 2 0 in the present embodiment, pattern one as M g O substrate 1 1-A at the position corresponding to the individual electrode pull-out unit 1 5 is left It is Jung.
- FIG. 4A is a cross-sectional view showing a schematic configuration of the ink jet recording head 10.
- the photosensitive polyimide layer 25 is formed in a portion where a piezoelectric element which is not necessary in the past exists. Therefore, the floating capacitance can be reduced as compared with the conventional ink jet recording head.
- Capacitance reduction rate (%) (Area of individual electrode lead-out part) * 100Z
- the area of the individual electrode lead-out portion 15 can be larger than in the past, so that the power supply state And the reliability of the inkjet recording head 10 is improved.
- FIG. 5 is a perspective view of the entire configuration, showing a part of the above-mentioned ink jet recording head 10 in a cross section.
- the vibration plate 27 bends and deforms due to the displacement based on the piezoelectric element 21 as shown in FIG.
- the ink in the chamber 35 can be ejected toward the recording medium surface via the ink conduction path 38 and the nozzle 41.
- the piezoelectric element 21 is not present in an unnecessary portion such as above the ink supply path 37, the ink droplets can be ejected by improving the ink particle formation characteristics.
- FIGS. 6 and 7 show the ink jet recording head 50 of the second embodiment.
- the same parts as those of the ink jet recording head 10 of the first embodiment are denoted by the same reference numerals.
- the linear individual electrode lead-out part 15 is used in order to further secure the joining state between the individual electrode main body 22 and the individual electrode lead-out part 15.
- An example is shown in which the positional relationship is such that the surface of the individual electrode body 22 and the surface of the individual electrode body 22 are in surface contact.
- the ink jet recording head 50 of the second embodiment can be manufactured similarly to the ink jet recording head 10 of the first embodiment.
- M g O3 ⁇ 4K When defining the cutout 12 A for forming the individual electrode lead-out portion 15 in 11, the design is made so as to overlap with the formation position of the individual electrode main body 22. Notch like this 1
- the remaining portion 11 1—A side of the MgO substrate is further extended so that the individual electrode lead-out portion 15 extends and corresponds to the portion 15 A, and the remaining additional portion 1 1 — A— a will be patterned to form a.
- the piezoelectric element 21 existing near and above the ink supply path 37 is further moved away from the ink supply path 37, so that the effect of displacement can be further reduced.
- the fact that the upper surface of 37 does not deform means that ink is supplied stably from the ink common path 36 to the pressure chamber 35, and that a stable flying state of the ink is ensured.
- the graining characteristics are improved.
- the piezoelectric element formation layer 17 having excellent single crystal withstand voltage can be formed. Can be formed.
- the same steps as in the first embodiment can be performed. The same steps are performed until the individual electrode formation layer 16 is formed on the MgO substrate 11 by the sputtering method in FIG. Thereafter, the piezoelectric element forming layer 17 is epitaxially grown from a single crystal to a predetermined thickness (for example, 3 / zm). If the subsequent steps are performed in the same manner as in FIG. 2 (J) and subsequent figures of the first embodiment, an ink jet recording head having a piezoelectric element having excellent withstand voltage can be manufactured.
- a silicon (Si) single crystal substrate can be used instead of the MgO substrate.
- the steps shown in FIG. 2 can be similarly performed to manufacture an ink jet recording head.
- Si as the substrate
- an ink jet recording head with reduced cost can be manufactured.
- the characteristics of the piezoelectric element 21 can be improved more than by adding a process of providing a buffer layer (such as an oxide film) for preventing diffusion between the individual electrode forming layer 16 and the Si substrate during the manufacturing process. it can.
- the ink jet recording head shown in the first and second embodiments is used by being mounted on a printing apparatus.
- FIG. 8 is a schematic side view of a printer 200 equipped with the ink jet recording head 10 of the first embodiment as an example.
- the printing apparatus 200 includes a main unit, a unit 210 and a control unit 220, and also includes an ink cartridge 240 and a backup unit 230. Since the inkjet recording head 100 has various effects as described above, the printer device 200 can be provided as a printer device with improved printing characteristics and reduced driving cost. .
- the piezoelectric element exists in a portion corresponding to the individual electrode main body, and does not exist in the individual electrode lead portion. Therefore, since the piezoelectric element is present in an unnecessary portion and displaced, the particleization characteristics are not deteriorated, and the capacitance for the unnecessary piezoelectric element is not included, so that the printing characteristics are improved. Therefore, the cost during driving can be reduced.
- the individual electrode lead-out portion of the ink jet recording head is located at a position deviated from the individual electrode body during the manufacturing process and can be formed separately, so that it has a sufficient cross-sectional area as an electric supply path. it can. Therefore, there is no danger of heat generation or disconnection of the individual electrode lead-out portion, and the reliability of the ink jet recording head is improved.
- the conductive material serving as the individual electrode lead portion is refilled in the groove before the individual electrode layer is formed on the substrate. Therefore, a desired individual electrode lead-out portion can be formed by forming a groove so that the individual electrode lead-out portion secures a cross section sufficient to supply sufficient electricity.
- the individual electrode layer and the piezoelectric element layer are simultaneously patterned, so that efficient processing can be performed.
- the manufacturing method of the present invention can be easily implemented by adding a simple change to a conventional thin film forming technique. Therefore, the equipment to be used can be used as it is, and the equipment cost does not increase.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00904021A EP1256450B1 (en) | 2000-02-18 | 2000-02-18 | Ink-jet recording head and method for manufacturing the same |
PCT/JP2000/000918 WO2001060621A1 (fr) | 2000-02-18 | 2000-02-18 | Tete d'impression a jet d'encre et procede de fabrication correspondant |
JP2001559697A JP4403353B2 (ja) | 2000-02-18 | 2000-02-18 | インクジェット記録ヘッドの製造方法及びプリンタ装置 |
US10/200,490 US6929353B2 (en) | 2000-02-18 | 2002-07-23 | Ink-jet recording head and method of manufacturing the same |
US11/104,503 US7165299B2 (en) | 2000-02-18 | 2005-04-13 | Method of manufacturing an ink-jet recording head |
US11/602,234 US7661801B2 (en) | 2000-02-18 | 2006-11-21 | Printer including an ink-jet recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/000918 WO2001060621A1 (fr) | 2000-02-18 | 2000-02-18 | Tete d'impression a jet d'encre et procede de fabrication correspondant |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/200,490 Continuation US6929353B2 (en) | 2000-02-18 | 2002-07-23 | Ink-jet recording head and method of manufacturing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001060621A1 true WO2001060621A1 (fr) | 2001-08-23 |
Family
ID=11735700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/000918 WO2001060621A1 (fr) | 2000-02-18 | 2000-02-18 | Tete d'impression a jet d'encre et procede de fabrication correspondant |
Country Status (4)
Country | Link |
---|---|
US (3) | US6929353B2 (ja) |
EP (1) | EP1256450B1 (ja) |
JP (1) | JP4403353B2 (ja) |
WO (1) | WO2001060621A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202996A1 (de) * | 2002-01-26 | 2003-08-14 | Eppendorf Ag | Piezoelektrisch steuerbare Mikrofluidaktorik |
MXPA05009877A (es) * | 2003-03-14 | 2006-02-28 | Thomson Licensing | Una arquitectura de punto de acceso a wlan flexible capaz de ordenar diferentes dispositivos del usuario. |
US7344228B2 (en) | 2004-08-02 | 2008-03-18 | Fujifilm Dimatix, Inc. | Actuator with reduced drive capacitance |
US7634855B2 (en) * | 2004-08-06 | 2009-12-22 | Canon Kabushiki Kaisha | Method for producing ink jet recording head |
US7497962B2 (en) * | 2004-08-06 | 2009-03-03 | Canon Kabushiki Kaisha | Method of manufacturing liquid discharge head and method of manufacturing substrate for liquid discharge head |
JP5382905B2 (ja) * | 2008-03-10 | 2014-01-08 | 富士フイルム株式会社 | 圧電素子の製造方法及び液体吐出ヘッドの製造方法 |
DE102015224622A1 (de) * | 2015-12-08 | 2017-06-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Freistrahldosiersystem |
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JPH11138810A (ja) * | 1997-11-13 | 1999-05-25 | Seiko Epson Corp | インクジェット式記録ヘッド |
EP0925923A1 (en) | 1997-07-18 | 1999-06-30 | Seiko Epson Corporation | Inkjet recording head, method of manufacturing the same, and inkjet recorder |
EP0963846A2 (en) | 1998-06-08 | 1999-12-15 | Seiko Epson Corporation | Ink jet recording head and ink jet recording apparatus |
JPH11348280A (ja) * | 1998-06-08 | 1999-12-21 | Seiko Epson Corp | インクジェット式記録ヘッド及びインクジェット式記録装置 |
EP0976560A2 (en) | 1998-07-29 | 2000-02-02 | Seiko Epson Corporation | Ink jet recording head and ink jet recording apparatus comprising the same |
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JP3147132B2 (ja) * | 1992-03-03 | 2001-03-19 | セイコーエプソン株式会社 | インクジェット記録ヘッド、インクジェット記録ヘッド用振動板、及びインクジェット記録ヘッド用振動板の製造方法 |
JPH07299904A (ja) | 1994-05-09 | 1995-11-14 | Oki Electric Ind Co Ltd | インクジェットヘッド |
US5907340A (en) * | 1995-07-24 | 1999-05-25 | Seiko Epson Corporation | Laminated ink jet recording head with plural actuator units connected at outermost ends |
US5793393A (en) * | 1996-08-05 | 1998-08-11 | Hewlett-Packard Company | Dual constriction inklet nozzle feed channel |
JP3666177B2 (ja) * | 1997-04-14 | 2005-06-29 | 松下電器産業株式会社 | インクジェット記録装置 |
JP3618965B2 (ja) | 1997-06-19 | 2005-02-09 | キヤノン株式会社 | 液体噴射記録ヘッド用基板およびその製造方法ならびに液体噴射記録装置 |
US6315400B1 (en) * | 1997-07-25 | 2001-11-13 | Seiko Epson Corporation | Ink jet recording head and ink jet recorder |
JPH1158737A (ja) | 1997-08-20 | 1999-03-02 | Ricoh Co Ltd | インクジェットヘッド |
JPH11291483A (ja) | 1998-04-07 | 1999-10-26 | Minolta Co Ltd | インクジェットヘッド |
JPH11300961A (ja) | 1998-04-17 | 1999-11-02 | Seiko Epson Corp | インクジェット式記録ヘッド及びその製造方法 |
US6062681A (en) * | 1998-07-14 | 2000-05-16 | Hewlett-Packard Company | Bubble valve and bubble valve-based pressure regulator |
JP3594808B2 (ja) | 1998-08-20 | 2004-12-02 | 株式会社リコー | インクジェットヘッド |
JP2000071448A (ja) | 1998-09-02 | 2000-03-07 | Ricoh Co Ltd | インクジェット記録装置 |
JP3267937B2 (ja) * | 1998-09-04 | 2002-03-25 | 松下電器産業株式会社 | インクジェットヘッド |
-
2000
- 2000-02-18 EP EP00904021A patent/EP1256450B1/en not_active Expired - Lifetime
- 2000-02-18 JP JP2001559697A patent/JP4403353B2/ja not_active Expired - Fee Related
- 2000-02-18 WO PCT/JP2000/000918 patent/WO2001060621A1/ja active Application Filing
-
2002
- 2002-07-23 US US10/200,490 patent/US6929353B2/en not_active Expired - Fee Related
-
2005
- 2005-04-13 US US11/104,503 patent/US7165299B2/en not_active Expired - Fee Related
-
2006
- 2006-11-21 US US11/602,234 patent/US7661801B2/en not_active Expired - Fee Related
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EP0925923A1 (en) | 1997-07-18 | 1999-06-30 | Seiko Epson Corporation | Inkjet recording head, method of manufacturing the same, and inkjet recorder |
JPH11138810A (ja) * | 1997-11-13 | 1999-05-25 | Seiko Epson Corp | インクジェット式記録ヘッド |
EP0963846A2 (en) | 1998-06-08 | 1999-12-15 | Seiko Epson Corporation | Ink jet recording head and ink jet recording apparatus |
JPH11348280A (ja) * | 1998-06-08 | 1999-12-21 | Seiko Epson Corp | インクジェット式記録ヘッド及びインクジェット式記録装置 |
EP0976560A2 (en) | 1998-07-29 | 2000-02-02 | Seiko Epson Corporation | Ink jet recording head and ink jet recording apparatus comprising the same |
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See also references of EP1256450A4 |
Also Published As
Publication number | Publication date |
---|---|
US7165299B2 (en) | 2007-01-23 |
US7661801B2 (en) | 2010-02-16 |
US20070064063A1 (en) | 2007-03-22 |
EP1256450A1 (en) | 2002-11-13 |
JP4403353B2 (ja) | 2010-01-27 |
EP1256450A4 (en) | 2008-02-13 |
US20050174395A1 (en) | 2005-08-11 |
EP1256450B1 (en) | 2012-01-11 |
US6929353B2 (en) | 2005-08-16 |
US20020180841A1 (en) | 2002-12-05 |
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