WO2004096451A1 - パターンの作製方法及び液滴吐出装置 - Google Patents
パターンの作製方法及び液滴吐出装置 Download PDFInfo
- Publication number
- WO2004096451A1 WO2004096451A1 PCT/JP2004/005391 JP2004005391W WO2004096451A1 WO 2004096451 A1 WO2004096451 A1 WO 2004096451A1 JP 2004005391 W JP2004005391 W JP 2004005391W WO 2004096451 A1 WO2004096451 A1 WO 2004096451A1
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- WO
- WIPO (PCT)
- Prior art keywords
- droplet
- film
- plasma
- pattern
- lyophilic
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000007599 discharging Methods 0.000 title claims abstract description 43
- 239000010408 film Substances 0.000 claims abstract description 66
- 239000000203 mixture Substances 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000010409 thin film Substances 0.000 claims abstract description 19
- 239000004065 semiconductor Substances 0.000 claims abstract description 9
- 239000005871 repellent Substances 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
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- 239000000758 substrate Substances 0.000 abstract description 57
- 239000011521 glass Substances 0.000 abstract description 10
- 230000002940 repellent Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 67
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 238000005530 etching Methods 0.000 description 18
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- 238000010586 diagram Methods 0.000 description 13
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- 229910052760 oxygen Inorganic materials 0.000 description 13
- 229910052734 helium Inorganic materials 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 8
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- 229910052786 argon Inorganic materials 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000011261 inert gas Substances 0.000 description 7
- 229910052743 krypton Inorganic materials 0.000 description 7
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 7
- 239000001307 helium Substances 0.000 description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
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- 229910052754 neon Inorganic materials 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000012495 reaction gas Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910001111 Fine metal Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000002923 metal particle Substances 0.000 description 4
- 238000009832 plasma treatment Methods 0.000 description 4
- 239000011882 ultra-fine particle Substances 0.000 description 4
- 229910052724 xenon Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
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- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 239000007772 electrode material Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QKCGXXHCELUCKW-UHFFFAOYSA-N n-[4-[4-(dinaphthalen-2-ylamino)phenyl]phenyl]-n-naphthalen-2-ylnaphthalen-2-amine Chemical compound C1=CC=CC2=CC(N(C=3C=CC(=CC=3)C=3C=CC(=CC=3)N(C=3C=C4C=CC=CC4=CC=3)C=3C=C4C=CC=CC4=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=C21 QKCGXXHCELUCKW-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
Definitions
- the present invention relates to a method for forming a film pattern and a droplet discharge device.
- the droplet discharge method has many advantages such as no need for a mask due to direct drawing patterning, easy application to large substrates, and high material utilization efficiency.
- the use for flat panels and displays is increasing.
- droplets that can be formed are as small as about 2 pL, and such microdroplets are precisely arranged on a substrate to form pixels, electrodes, wiring, and the like.
- the actual landing accuracy of droplets is from several meters to about 30. Even after landing, droplets may deviate from the landing position due to the state of the landing surface and the contact angle of the droplets. Therefore, it is often insufficient to form a pixel portion of a small FPD as a panning.
- droplets are discharged into a bank formed by photolithography so that the landing position does not shift.
- droplets containing the head and the composition are the most important in the droplet discharge method, but in fact other factors are also large. Unlike ordinary ink jets, where absorbent media such as paper catches ink, in FPD applications, it is often necessary to discharge onto a non-absorbent substrate, which limits the discharge method. For example, when the liquid is ejected onto a lyophilic substrate, the substrate spreads greatly. Therefore, the substrate on which fine patterning is performed must have some liquid repellency. However, droplets placed on a liquid-repellent substrate move easily, so it is necessary to perform drawing after optimizing the combination of the surface state of the substrate and the ejection conditions.
- the present invention provides a method for producing a pattern with improved positional accuracy when a droplet lands on a substrate.
- a method and a droplet discharge device configured to include a plasma generation unit. That is, a liquid-repellent thin film on a substrate having an insulating property, for example, a glass substrate, for example, is made lyophilic by means for selectively generating plasma on a semiconductor film.
- the method is characterized by including a step of forming a pattern by discharging a droplet composition. By sandwiching the selectively formed lyophilic region with liquid repellency, the droplets after landing can be formed without moving from the landing position.
- the plasma is generated using a high-frequency or high-voltage pulse power supply that applies a pulsed electric field.
- the high-frequency power supply has a frequency of 10 to 100 MHz
- the pulse power supply has a frequency of 50 to 100 kHz and a pulse.
- the duration is between 1 and 100 ⁇ sec.
- the pressure is the atmospheric pressure or a range near the atmospheric pressure, and the pressure range may be 1.3 ⁇ 10 ′ to ⁇ .31 ⁇ 10 5 Pa.
- an inert gas such as He, Ne, Ar, Kr, and Xe, or any one or a plurality of oxygen and nitrogen may be appropriately selected and used.
- the lyophilicity is defined as a contact angle 0 of 0 ° ⁇ 0 ⁇ 10 °
- the lyophobic property is defined as 10 ° to 180 °.
- a groove is selectively formed on a substrate having an insulating property, for example, a glass substrate by means of selectively generating plasma on a lyophilic thin film, for example, a silicon oxide film, and droplets are discharged on the lyophilic surface.
- a step of discharging the droplet composition by means to form a pattern. By selectively forming grooves on the lyophilic surface, droplets after landing can be formed without moving from the position at the time of landing.
- the plasma is generated using a high-frequency power supply or a high-voltage pulse power supply.
- the high-frequency power supply has a frequency of 10 to 100 MHz
- the pulse power supply has a frequency of 50 to 10 OkHz and a pulse duration of 1 to 100 sec. preferable.
- the pressure is In the range of atmospheric pressure or near atmospheric pressure, the pressure range may be between 1. SX li ⁇ l. 3 1 X 10 5 Pa.
- a reaction gas a reducing gas such as hydrogen may be used, or a gas such as CF 4 , CHF 3 , SF 6 or the like may be used to perform etching so that grooves can be selectively formed.
- the lyophilicity is defined as a contact angle 0 of 0 ° ⁇ ⁇ 10 °, and the lyophobic property is defined as 10 ° ⁇ 0 ⁇ 180 °.
- the present invention provides a droplet discharge unit having a configuration including a plasma processing unit, and can provide a droplet discharge device with improved positional accuracy when a droplet lands by this configuration.
- droplet discharge method in the present invention means a method of discharging a droplet containing a predetermined composition from pores to form a predetermined pattern, and includes an ink jet method in its category.
- FIG. 1 is a diagram showing a configuration of a means for selectively forming a lyophobic surface on a lyophobic surface.
- FIG. 2 is a diagram showing a configuration of a means for selectively forming grooves on a lyophilic surface.
- FIG. 3 is a conceptual diagram of a plasma processing region and a droplet diameter upon landing.
- FIG. 4 is a diagram showing an example of the pattern drawing means according to the present invention.
- FIG. 5 is a diagram showing an example of the pattern drawing means according to the present invention.
- FIG. 6 is a diagram showing a plasma processing port and a droplet discharge port.
- FIG. 7 is a diagram illustrating an example of a drawing unit according to the present invention.
- FIG. 8 is a cross-sectional view illustrating a manufacturing process of the display device according to the present invention.
- FIG. 9 is a cross-sectional view illustrating a manufacturing process of the display device according to the present invention.
- FIG. 10 is a cross-sectional view illustrating a manufacturing process of a display device according to the present invention.
- FIG. 11 is a cross-sectional view illustrating a manufacturing process of a display device according to the present invention.
- FIG. 12 is a diagram showing a manufacturing process of the display device according to the present invention.
- FIG. 13 is a diagram showing one embodiment of the display device of the present invention.
- FIG. 14 is a diagram showing an example of a means for filling a hole composition with a droplet composition according to the present invention.
- FIG. 15 is a diagram showing an example of a means for filling a hole composition with a droplet composition according to the present invention.
- FIG. 16 is a diagram showing an example of a means for filling a hole composition with a droplet composition according to the present invention.
- FIG. 17 is a diagram illustrating an example of the control device according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- a thin film 100 having a liquid-repellent surface, for example, a semiconductor silicon film is formed over an insulating substrate, for example, a glass substrate (FIG. 1A).
- the area 101 intended to discharge droplets is selectively irradiated with plasma by the plasma irradiation means 102 on the surface of the thin film 100 to make the area 101 lyophilic (FIG. 1 (B)).
- the droplet composition 106 is discharged onto the lyophilic surface thus formed by the droplet discharging means 103 to form a pattern (FIGS. 1 (C) and 1 (D)).
- the plasma irradiating means 102 and the droplet discharging means 103 are integrated or arranged at a position close to each other. Immediately after the plasma irradiation, the integrated plasma irradiation means 102 and the droplet discharge means 103 are moved to the processing position by the moving means 105.
- the discharge composition 107 which has been moved and moved by the droplet discharge means 103 is lyophilic because the landing position is irradiated with plasma, and the non-landing area 100 is lyophobic. In addition, since there is no problem that the droplets move after landing, the ejection composition can be formed with high accuracy.
- the droplet discharging means 103 After irradiating the plasma with the plasma irradiating means 102, it is possible to discharge the droplet to the plasma irradiation position without moving the droplet discharging means 103, but in this case, the droplet discharging means 103 It is necessary to tilt the piezo element and the discharge port and change the electric signal.
- the plasma is generated using a high-frequency power supply or a high-voltage pulse power supply.
- the high-frequency power supply has a frequency of 10 to 10 MHz, and the pulse power supply has a frequency of 50 to 10 0.
- the frequency is 0 kHz and the pulse duration is 1 to 100 sec.
- the pressure is in the range of atmospheric pressure or near atmospheric pressure, the pressure range is, 1.
- SX l O 'l . 3 may be set to 1 X 1 0 5 Pa. Atmospheric pressure tends to improve landing accuracy when the pressure is lower than the atmospheric pressure because the probability of collision with gas molecules and suspended matter decreases from discharge to landing.
- an inert gas such as He, Ne, Ar, Kr, and Xe, or any one or a plurality of oxygen and nitrogen may be appropriately selected and used.
- the droplet discharge material may be any material that can be discharged as droplets by dissolving in a solvent.
- the material include a conductive material for wiring, a resist material, a resin material for an alignment film, and a light emitting element.
- a luminescent material to be used, an etching solution used for etching, and the like can be used.
- a plurality of integrated plasma irradiation means 102 and droplet discharge means 103 may be integrated into one processing mechanism.
- the plasma irradiation means 102 and the droplet discharge means 103 can be used independently for each purpose. When used independently, a plurality of processing units can be combined into one processing mechanism.
- the plasma processing means 102 is intended to modify the surface of the surface to be processed in this means, it can be used as a plasma processing means such as film formation or etching if necessary.
- Plasma irradiation is performed selectively on the liquid droplet discharge area 201 on the surface of the thin film 200 by plasma irradiation 202 means.
- hydrogen as a reducing gas
- the gas CF 4 , CHF 3 , SF 6 or the like forms a groove in which the discharged droplet composition 206 is accommodated.
- the size of the groove is adjusted according to the amount of the droplet to be ejected, and is appropriately formed according to the extent to which the droplet can be accommodated.
- the plasma irradiation region 201 may be changed to the extent that the surface unevenness is changed without etching as in the case of the groove and the adhesion of the discharge composition is improved.
- the droplet composition 206 is discharged by the droplet discharge means 203 into the groove formed by the plasma irradiation to form a pattern.
- the plasma irradiation means 202 and the droplet discharge means 203 are integrated or arranged at a position close to each other.
- the integrated plasma irradiation means 202 and the droplet discharge means 203 are moved to the processing position by the movement means 205. Since the plasma irradiation and the droplet discharge location are not the same, the droplet discharge means 203 is moved immediately after the plasma irradiation to discharge the discharge composition.
- the landed discharge composition 207 has a groove formed at the landed position, there is no problem that the droplet moves after landing on the non-landing area 200.
- the plasma irradiating means 202 After irradiating the plasma irradiating means 202 with the plasma, it is possible to discharge the liquid droplets to the plasma irradiation position without moving the liquid droplet discharging means 203, but in this case, the piezo element or the discharge port of the liquid droplet discharging means 203 may be discharged. You need to ramp or change the electrical signal.
- the power supply for plasma generation is performed using a high frequency power supply or a high voltage pulse power supply.
- the high frequency should be 10 to 10 MHZ frequency.
- the loose power supply should have a frequency of 50 Hz to 100 kHz and a pulse duration of 1 to 100 sec. Is preferred.
- the pressure is at or near atmospheric pressure, and the pressure range may be 1. SX l O 'l. 31 x 10 5 Pa. Atmospheric pressure is better than atmospheric pressure because the probability of collision with gas molecules and suspended matter decreases from discharge to landing Tend to be.
- FIG. 3 shows the relationship between the plasma irradiation area L and the droplet diameter at the time of impact.
- Fig. 4 shows a configuration in which a nozzle body suitable for performing surface modification and etching using plasma gas or reactive radicals or ionic species and a nozzle body for discharging droplets are integrated. .
- the nozzle for plasma processing will be described.
- Gas for surface treatment is supplied to the nozzle body by gas supply means 402, its exhaust means 405, and gas supplied from the gas supply means 402 in the inner gas supply cylinder 400.
- Plasma is generated or reactive radicals or ionic species are generated and sprayed from the gas outlet 403 onto the object. Thereafter, the gas is exhausted from the outer gas exhaust cylinder 404 by the exhaust means 405.
- a gas refining means 406 may be provided between the gas supply means 402 and the gas discharge means 405 to incorporate a structure for circulating the gas. By incorporating such a configuration, gas consumption can be reduced. Further, the gas discharged from the exhaust means 405 may be collected and purified, and may be reused in the gas supply means 402.
- the distance between the nozzle body and the object to be processed is preferably 50 mm or less, and more preferably 10 mm or less.
- the shape of this nozzle body is the shape of the electrode 4 provided inside the inner peripheral gas supply cylinder 400. It is most desirable to use a coaxial cylindrical shape centered on the solid dielectric material 4 1 2 placed on the electrode 4 1 and the electrode 4 1. It is not limited to.
- the distance between the electrodes is determined in consideration of the thickness of the fixed dielectric, the magnitude of the applied voltage, the purpose of using plasma, and the like, and is preferably 1 to 7 mm.
- the irradiation port for plasma irradiation is narrower than between the electrodes.
- the electrode 401 may be formed in a rod shape, a spherical shape, a flat shape, a tubular shape, or the like using stainless steel, brass, other alloys, aluminum, nickel, or other simple metals.
- the solid dielectric 412 placed on the electrode 401 must completely cover the electrode 401. If there is a part where the electrodes directly face each other without being covered by the solid dielectric, an arc discharge will occur from there.
- the solid dielectric include metal oxides such as silicon dioxide, aluminum oxide, zirconium dioxide, and titanium dioxide; plastics such as polyethylene terephthalate and polytetrafluoroethylene; glass; and composite oxides such as barium titanate. Are mentioned.
- the solid dielectric may be in the form of a sheet or a film, but preferably has a thickness of 0.05 to 4 mm. If a high voltage is required to generate the discharge plasma, and the solid dielectric is too thin, dielectric breakdown will occur when a voltage is applied, and arc discharge will occur.
- a DC power supply or a high-frequency power supply can be used as the power supply 407 for supplying power to the electrode 410. When using a DC power supply, it is preferable to supply power intermittently in order to stabilize the discharge, with a frequency of 50 ⁇ to 100 kHz and a pulse duration of 1 to 100 sec. Is preferred.
- the selection of the processing gas is intended to selectively treat the lyophobic surface to the lyophilic surface.
- an inert gas such as He, Ne, Ar, Kr, or Xe, or any of oxygen and nitrogen.
- reducing gas such as hydrogen, carbon tetrafluoride (CF 4 ), nitrogen trifluoride (NF 3 ), sulfur hexafluoride (SF 6 ), Other fluoride gases and oxygen (0 2 ) may be used in combination as appropriate.
- these fluoride gases are converted into helium, argon, krypton, It may be diluted with a rare gas such as xenon before use.
- Pressure atmospheric pressure or near atmospheric pressure is, 1. 3 0 X 1 0 ' ⁇ 1. 3 may be set to 1 X 1 0 5 Pa.
- the nozzle body and the substrate to be processed may be held in a reaction chamber forming a closed space, and the reduced pressure state may be maintained by the exhaust means.
- the electric signal 411 is sent to the piezo element 408, the ejection composition is sent at the timing of the electric signal 411 from the force of the liquid droplets 4-10, and the plasma processing is performed from the ejection port 409. Discharge to the area where it went. At this time, the pressure lower than the atmospheric pressure tends to improve the landing accuracy because the probability of collision with gas molecules or suspended matter from discharge to landing is reduced. In addition, a pattern is formed in which no droplet moves after landing by discharging to the area or groove that has been changed to lyophilic by the plasma treatment. Since the droplet discharge means is not in contact with the processing substrate, it is excellent in space saving, material use efficiency, multi-product compatibility, landing accuracy, and fine dimensional pattern as compared with the screen printing method.
- the nozzle body for performing the plasma processing and the nozzle body for discharging the droplets are integrated, but they may be separated by an appropriate distance.
- the plasma processing means is on the surface It is not limited to the purpose of the modification, and may be used separately from the droplet discharging means for the purpose of film formation and etching.
- Fig. 5 shows the nozzle mechanism when the plasma processing nozzle handles only non-hazardous gas, which is simpler than Fig. 4.
- Gas for surface treatment is supplied to the nozzle body by gas supply means 502, its exhaust means 509, and gas supplied from the gas supply means 502 in the inner peripheral gas supply cylinder 500.
- Plasma or a reactive radical or ionic species is generated and sprayed from the gas outlet 503 onto the object.
- the hood 512 surrounding the apparatus is installed outside the apparatus, and the gas is exhausted by the integrated exhaust means 509.
- the distance between the nozzle body and the object to be processed is preferably 50 mm or less, more preferably 10 mm or less.
- the shape of this nozzle body is a coaxial cylindrical shape centered on the electrode 501 provided inside the inner peripheral gas supply cylinder 500 and the solid dielectric 5100 installed on the electrode 501. Is most preferable, but the present invention is not limited to this as long as the processing gas can be supplied locally into plasma.
- the distance between the electrodes is determined in consideration of the thickness of the fixed dielectric, the magnitude of the applied voltage, the purpose of utilizing the plasma, and the like, and is preferably 1 to 7 mm.
- the irradiation port for plasma irradiation is narrower than between the electrodes.
- the electrode 501 may be made of stainless steel, brass, other alloys, aluminum, nickel, or other simple metals, and may be formed in the shape of a rod, a sphere, a flat plate, a tube, or the like.
- the solid dielectric 5 1 0 installed on the electrode 5 0 1 is the electrode 5 0 One needs to be completely covered. If there is a part where the electrodes directly face each other without being covered by the solid dielectric, an arc discharge will occur from there.
- the solid dielectric include metal oxides such as silicon dioxide, aluminum oxide, zirconium dioxide, and titanium dioxide; plastics such as polyethylene terephthalate and polytetrafluoroethylene; glass; and composite oxides such as glass and barium titanate. Things.
- the solid dielectric may be in the form of a sheet or a film, but preferably has a thickness of 0.05 to 4 mm.
- a high voltage is required to generate discharge plasma, and if it is too thin, dielectric breakdown occurs when a voltage is applied, causing arc discharge.
- the power supply 504 for supplying power to the electrode 501 a DC power supply or a high-frequency power supply can be applied. When using a DC power supply, it is preferable to supply power intermittently in order to stabilize the discharge.
- the frequency is 50 ⁇ to 100 kHz, and the pulse duration is 1 to 100 x sec. It is preferable that
- the selection of the treatment gas can be performed only for the purpose of selectively treating the lyophilic surface with the lyophobic surface.
- an inert gas such as He, Ne, Ar, Kr, or Xe, or any of oxygen and nitrogen.
- Pressure atmospheric pressure or near atmospheric pressure is, 1. 3 0 X 1 0 ' ⁇ . 3 may be set to 1 X 1 0 5 Pa.
- the nozzle body and the substrate to be processed may be held in a reaction chamber forming a closed space, and the reduced pressure state may be maintained by the exhaust means.
- the electric signal 508 is sent to the piezo element 505, the ejection composition is sent from the droplet cartridge 507 in the evening of the electric signal, and the plasma is applied from the ejection port 506 to the area where the plasma processing was performed. Discharge.
- the pressure is lower than the atmospheric pressure, the probability of collision with gas molecules or suspended matter from discharge to landing decreases, and the landing accuracy tends to be improved.
- a pattern is formed in which droplets do not move after landing by ejecting to a region or groove that has been changed to lyophilic by the plasma treatment.
- the nozzle body for performing the plasma processing and the nozzle body for discharging the droplets are integrated, but may be separated at an appropriate distance.
- FIG. 6 shows a simplified configuration in which the plasma processing means and the droplet discharge means are integrated.
- FIG. 6 shows a surface on which the plasma processing and the droplet discharge processing are performed.
- FIG. 6A shows a configuration in which the integrated cylindrical nozzle 603 has a plasma processing port 600 and a droplet discharge port 601 arranged as close as possible.
- the size of the plasma and droplets released from each processing port can be determined as appropriate according to the size of the pattern to be processed.However, in the case of plasma processing, the size varies depending on the gas flow rate and pressure. However, the droplet discharge also changes depending on the magnitude of the pulse voltage applied to the piezo element and the manner of switching.
- the shape of the processing port is not limited to a circular shape as shown in FIG. 6 (A), but may vary depending on the application such as an elliptical shape, a rectangular shape, a square shape, and a triangular shape.
- Fig. 6 (B) shows the processed end of the processing port shown in Fig. 6 (A), and the shape is changed to process smaller and smaller areas.
- the cylindrical nozzle 606 is connected to a plasma processing port 604 and a nozzle 607 having a thin tip.
- the droplet ejection port 605 is also connected to a nozzle 608 having a thin tip, and the plasma processing nozzle 607 and the droplet ejection nozzle 608 are arranged as close as possible. This not only processes a micro area, but also does not move after plasma processing Thus, droplets can be discharged to the plasma processing position.
- FIG. 7 illustrates one mode of a pattern drawing unit in which a number of nozzles in which a plasma processing unit and a droplet discharging unit are integrated are assembled.
- the plasma processing means and the droplet discharge means 700 are provided on the substrate 700.
- the plasma processing means and the droplet discharge means 700 are not moved with respect to the substrate, but the substrate 700 is processed by appropriately rotating a plurality of rotation axes below the substrate 700.
- the plasma processing means and the droplet discharge means 700 use a plurality of heads each having a plasma irradiation port 711 and a liquid discharge port 712, and use a plurality of heads in a uniaxial direction (width direction of the substrate 700). It is arranged in.
- the imaging means 700 is provided for detecting a marker position on the substrate 700 and observing a pattern.
- the head of the plasma irradiation port 711 may be any as long as it controls the amount and timing of plasma irradiation.
- the head 7 12 of the droplet discharging means only needs to be able to control the amount and timing of the composition to be discharged or dropped, and may be configured to discharge the composition using a piezoelectric element as in an ink jet method, It is sufficient to provide a needle valve at the discharge port to control the amount of dripping.
- the dispenser 703 constituting the plasma processing means and the droplet discharging means 701 does not necessarily have to perform the discharging operation at the same time at the same time, and the individual heads 711, 7 may be moved in accordance with the movement of the substrate 700.
- the target pattern can be formed by controlling the timing of the plasma irradiation and the discharge of the composition by the substrate 12.
- the individual heads 7 1 2 of the droplet ejection means are connected to control means, which by means of a combo unit 707 controls a pre-programmed pattern. Can be drawn.
- the timing for drawing may be based on, for example, a marker 708 formed on the substrate 700. This is detected by the imaging means 702, the digital signal converted by the image processing means 706 is recognized by the computer 707, a control signal is generated and sent to the control means 704.
- the information on the pattern to be formed on the substrate 704 is stored in the storage medium 705, and a control signal is sent to the control means 704 based on this information, and the droplet discharge means
- the individual heads 7 1 and 2 can be individually controlled.
- the individual heads 7 11 of the plasma irradiating means are connected to the control means similarly to the droplet discharging means, and can irradiate a previously programmed pattern by controlling with a computer 707.
- the plasma irradiation head 711 is connected to a gas supply means 709 and a power supply 710 for the electrodes. Note that gas exhaust is not installed in each dispenser 703, and is to be exhausted collectively by a hood that covers the device, but is not particularly shown in FIG. Example
- FIG. 8A shows a step of forming a conductive film in order to form a gate electrode and a wiring.
- a substrate having a light-transmitting property such as glass or quartz, is used as the substrate.
- the substrate is not limited to a light-transmitting one as long as it can withstand the processing temperature in each step, and another substrate may be used.
- the size of the substrate 150 is 600 mm X 720 mm, 680 mmX 880mm, 100 OmmX 120 Omm 1 10 OmmX 1 2 50 mm, 1 15 OmmX 1 30 Omm, 150 OmmX 1 800 mm, 180 OmmX 200 Omm, 200 OmmX 2 100 mm, 220 OmmX 260 Omm, or It is preferable to use a large-area substrate such as 260 OmmX 3 100 mm to reduce the manufacturing cost.
- a conductive film 11 made of aluminum, titanium, tantalum, molybdenum, or the like is formed on a substrate 10 by a film forming means provided with a nozzle body having a plurality of nozzles arranged in a uniaxial direction.
- the conductive material to be discharged is a conductive composition containing fine metal particles with a particle size of about 1 zm, or a conductive polymer composition composed of fine metal particles with a particle size of about 1 m and ultrafine particles of nano-micro size.
- a material dispersed in a material may be used. Since the conductive film 11 is applied in the form of a solvent-based paste, adhesion to the glass substrate is poor.
- the discharge area is plasma-treated to reduce the surface of the glass substrate to a reducing gas such as hydrogen carbon tetrafluoride (CF 4 ), nitrogen trifluoride (NF 3 ), or sulfur hexafluoride (SF 6 ). forms and other fluoride gases, oxygen (0 2) minute groove so that discharged liquid can fit as indicated by an appropriate combination embodiment and the like. Even if the grooves are not formed, treatment for increasing the unevenness of the surface may be performed to improve the adhesion to the substrate. In order to stably maintain the discharge, these fluoride gases may be diluted with a rare gas such as helium, argon, krypton, or xenon.
- a rare gas such as helium, argon, krypton, or xenon.
- the plasma is generated using a high-frequency power supply or a high-voltage pulse power supply.
- the high-frequency power supply has a frequency of 10 to 100 MHz
- the pulse power supply has a frequency of 5 OHz to 100 kHz
- the pulse duration is 1 to 100 isec. Is preferred.
- the pressure is in the range of atmospheric pressure or near atmospheric pressure, pressure range, by a 1. 3 X 1 ( ⁇ ⁇ 3 1 X 10 5 Pa Good. When a droplet is ejected, the accuracy of impact tends to be better in a depressurized atmosphere than in the atmospheric pressure because the probability of collision with gas molecules or suspended matter from ejection to impact decreases.
- the reaction gas used for plasma generation for making the liquid lyophilic may be an inert gas such as He, Ne, Ar, Kr, or Xe, or any one or a plurality of oxygen and nitrogen.
- the conductive film 11 does not need to be formed over the entire surface of the substrate 10 and may be formed selectively near the region where the gate electrode and the wiring are formed. After discharging the conductive metal liquid onto the substrate, the substrate is dried at 100 ° C. for 3 minutes, and baked at 200 to 500 ° C. for 15 to 30 minutes. Before drying, the conductive film may be rubbed with a roller or the like to flatten it.
- the droplet discharge means 13 in which a plurality of plasma irradiation ports and composition discharge ports are arranged in a uniaxial direction, so that oxygen, nitrogen, helium, etc.
- the resist composition is selectively discharged to form a mask pattern 14 for forming a gate electrode on the conductive film 11.
- the droplet discharge means since the discharge ports are arranged only in one axis direction, it is only necessary to operate the head only at a necessary portion (13a), and to process the entire surface of the substrate. In this case, any one or both of the substrate 10, the plasma irradiation means, and the droplet discharge means 13 may be moved. Such processing is the same in the following steps.
- FIG. 8C shows a step of performing etching using the mask pattern 14 to form the gate electrode and the wiring 16.
- Etching is performed using a film removing means in which a plurality of plasma ejection ports are arranged in a uniaxial direction. Fluoride gas or chloride gas is used for etching of the conductive film 11. The reactive gas does not need to be sprayed over the entire surface of the substrate 10, and the nozzle body 15 a of the nozzle body 15 which opposes the region where the conductive film 11 is formed is operated, and only that region is actuated. What is necessary is just to process it.
- FIG. 8 (D) shows a step of removing the mask pattern 14 using a film removing means in which a plurality of plasma ejection ports are arranged in the -axis direction.
- Oxygen plasma treatment is performed on the nozzle body 17 to perform asshing, but it is not necessary to perform this treatment on the entire surface of the substrate, and the nozzle body 17a only near the area where the mask pattern is formed is formed. What is necessary is just to operate and selectively perform a process.
- a gate insulating film 19, a non-single-crystal silicon film 20 and a protective film 21 are formed.
- a plurality of nozzle bodies 18 each of which is in charge of forming a coating may be prepared and formed continuously, or a reaction may be made every time the nozzle body 18 is scanned once.
- the layers may be sequentially formed by switching the gas type. Since the region where the film is to be formed is not the entire surface of the substrate 10, for example, the reaction gas converted into plasma is supplied from the entire surface of the nozzle 18 to form the film only in the region where the TFT is to be formed. May be performed.
- the gate insulating film 19 may be formed on the entire surface of the substrate, or may be formed selectively near the region where the TFT is formed.
- FIG. 9 (B) shows a step of forming a mask pattern 23, in which the adhesion is improved by the plasma processing means and the droplet discharging means 22 in which a plurality of discharge ports for the composition are arranged in the -axis direction.
- a resist composition is selectively discharged to form a mask for forming a protective film in the channel portion.
- a pattern 23 is formed.
- FIG. 9C shows a step of etching the protective film 21 using the mask pattern 23 to form the protective film 25 in the channel portion.
- Channel protection film that will be formed in the silicon nitride film may be performed using a fluoride gas such as SF 6.
- the mask pattern 23 is removed by a film removing means in the same manner as in the case of FIG. 9D.
- FIG. 9D shows a step of forming a non-single-crystal silicon film 27 of one conductivity type for forming a source and a drain of TFT.
- a silicide gas such as silane and a periodic group 1-5 group represented by phosphine. What is necessary is just to mix the gas containing an element.
- FIG. 10A shows a step of forming a source and a drain wiring by improving adhesion by plasma treatment and then applying a solvent-based conductive paste.
- the plasma processing means and the droplet discharging means 28 may be configured to irradiate a plasma of oxygen, nitrogen, helium, or the like so as to improve adhesion, and then discharge droplets using a piezoelectric element, or a dispenser method. It is good.
- a conductive composition containing metal fine particles having a particle size of about 1 is selectively dropped to directly form a source 29 and a drain 30 wiring patterns.
- a metal fine particle having a particle size of about 1 m and ultra-fine particles of nano-micro size dispersed in a conductive high molecular composition may be used.
- the solvent of the composition is volatilized to cure the wiring pattern.
- a heated inert gas may be similarly sprayed from the nozzle body, or heating may be performed using a halogen lamp heater, an oven or a furnace furnace.
- the baking temperature is 100 ° C., drying for 3 minutes, and baking at 200 to 500 ° C., 15 to 30 minutes.
- the conductive film may be rubbed with a roller or the like, and may be flattened so that the surface of the conductive film has no irregularities.
- FIG. 10 (B) shows one-conductivity-type non-single-crystal silicon film 27 and non-single-crystal semiconductor film 20 located underneath using source and drain wirings 29 and 30 as masks. Is etched. Etching is performed by irradiating plasma fluoride gas from the nozzle body 31. Etching is performed by irradiating a plasma of a fluoride gas from the nozzle body 31. Also in this case, the amount of the reactive gas to be sprayed is made different in the area where the non-single-crystal silicon film is exposed by making the ejection amount different between the vicinity of the wiring formation area and the other areas, thereby ejecting a large amount of the reactive gas. The etching is balanced, and the consumption of reactive gas can be suppressed.
- FIG. 10 (C) shows a process of forming a protective film on the entire surface, in which a reactive gas plasmified is ejected from the nozzle body 32, typically to form a silicon nitride film 33.
- a reactive gas plasmified is ejected from the nozzle body 32, typically to form a silicon nitride film 33.
- the conductive film is ultra-fine particles with a particle size of about 1 m, there is a concern that the conductive film may diffuse into the contacting thin film.
- the silicon nitride film is more effective in preventing and protecting diffusion than the oxide film and is effective.
- the silicon nitride film may be doped with Ar or the like.
- Fig. 10 (D) shows the formation of a contact hole.
- a reactive gas that is selectively turned into plasma is injected into the place where a contact hole is to be formed.
- the contact holes 35 can be formed without using a mask.
- the wet etching may be locally performed using an HF-based wet etching solution instead of the plasma gas. At this time, after the etching liquid drops, the pure water is dropped to remove the etching liquid so that the etching does not proceed too much.
- a transparent electrode 37 is formed.
- the plasma processing means and the droplet discharging means 36 irradiate the droplet discharging region with a plasma of oxygen, nitrogen, helium or the like so as to improve the adhesion, and then discharge the droplets to become the transparent electrodes.
- a configuration in which a droplet is discharged using a piezoelectric element may be used, or a dispenser method may be used.
- the discharged transparent electrode material is a conductive composition containing fine metal particles with a particle size of about 1 m, or a fine metal particle with a particle size of about 1 m, and a nano-sized ultrafine particle composed of a conductive polymer. A material dispersed in an object may be used.
- a composition containing a powder of conductive particles such as indium tin oxide, tin oxide, and zinc oxide is formed by a droplet discharging means.
- the resistance of the contact portion with the non-single-crystal silicon film 27 of one conductivity type is reduced. Can be lower.
- a pixel electrode is formed.
- a heated inert gas may be similarly sprayed from a nozzle body as a heating means, or a halogen lamp heater or oven may be used. Alternatively, heating may be performed using a furnace or a furnace.
- the baking temperature is 10 ° C., drying for 3 minutes, and baking at 200 ° C.
- the conductive film Before drying, the conductive film may be rubbed with a roller or the like to flatten the surface of the transparent electrode so as to eliminate irregularities. Subsequent steps are necessary when manufacturing a liquid crystal display device. However, the following steps also use non-contact droplet discharge means. As shown in FIG. 12, an orientation film is formed by the plasma processing means 120, the droplet discharge means 121, and the heating means 122, and the rubbing treatment is performed by the rubbing means 124. Further, the sealing material is drawn by the liquid droplet discharging means 125, the spacer is scattered by the spraying means 126, and then the liquid crystal is dropped on the substrate by the liquid crystal dropping means 127.
- the substrate on the opposite side is supplied from another unwinding roller—128 and is attached.
- the two substrates are fixed by curing the sealing material by the curing means 129.
- the liquid crystal panel 131 can be manufactured by appropriately cutting out the panel size by the dividing means 130.
- a display device using the method for manufacturing a semiconductor device of the present invention is manufactured.
- a television receiver, a computer, a video reproducing device, and other electronic devices illustrated in FIG. 13 can be completed.
- FIG. 13A shows an example of completing a television receiver by applying the present invention, which includes a housing 200, a support base 200, a display portion 2003, and a part of speakers 200. 4. It consists of video input terminals 205.
- a television receiver having a screen size of 30 inches or more can be manufactured at low cost.
- a television receiver can be completed.
- FIG. 13B is an example in which a notebook personal computer is completed by applying the present invention.
- the main body 2201, the housing 222, the display section 2203, and the keyboard 2 are shown. 204, external connection port 222, pointing mouse 222, and the like.
- a personal computer having a display portion 222 of a 15 to 17 type class can be manufactured at low cost.
- FIG. 13 (C) is an example of a completed video device by applying the present invention, and includes a main body 2401, a housing 2420, a display section A2403, and a display section B240. 4. It consists of a recording medium reading section 2405, operation keys 2406, a speaker section 2407, and the like.
- a low-cost video reproducing apparatus having a display section 2203 of a 15- to 17-inch class while achieving a reduction in weight.
- a semiconductor 3001 is provided over a substrate 300, an insulator 3002 is provided over the semiconductor 3001, and the insulator 3002 has a contact hole 300.
- 0 has 3.
- a method for forming the contact hole a known method may be used, but a droplet discharging method may be used.
- a contact hole 3003 is formed by discharging a wet-etching solution from the nozzle.
- the formation of the contact hole and the formation of the wiring can be performed continuously by the droplet discharge method.
- the nozzle 3004 is moved above the contact hole 3003, the droplet composition is continuously discharged into the contact hole 3003, and the contact hole 3003 is filled with the droplet composition (FIG. 14 (B)). .
- the conductor 3005 in which the contact hole 3003 is filled with the droplet composition can be formed (FIG. 14). (C)).
- the nozzle 3004 scans the same area multiple times.
- the nozzle 3004 is moved to selectively discharge a droplet composition only to a region where a wiring is to be formed, thereby forming a conductor 3006 (FIG. 15 (B)).
- it moves above the contact hole 3003, and continuously discharges the droplet composition into the contact hole 3003.
- a conductor 3007 in which the contact hole 3003 is filled with the droplet composition can be formed (FIG. 15 (C)).
- nozzle 3004 scans the same location multiple times.
- the nozzle 3004 is moved to selectively discharge a droplet composition (FIG. 16 (A)).
- the droplet composition is continuously discharged, and the contact hole is filled with the droplet composition (FIG. 16B).
- a conductor 3008 in which the contact hole 3003 is filled with the droplet composition can be formed (FIG. 16 (C)).
- the nozzle 3004 does not scan the same location more than once.
- circuit wiring input to a personal computer or the like can be immediately manufactured.
- the system at this time will be briefly described with reference to FIG.
- Core components include CPU 310, volatile memory 3101, non-volatile memory 310, input means such as keypad and operation button 3103, droplet discharge means 310 4 is provided. The operation will be briefly described.
- the data is transferred to the volatile memory 310 or the nonvolatile memory 310 via the CPU 310.
- the liquid droplet discharging means 3104 selectively discharges the liquid droplet composition, whereby a wiring can be formed.
- the present configuration may be used for the purpose of repairing a broken wire portion, a defective electrical connection between a wire and an electrode, and the like.
- a repair location is input to a personal computer or the like, and the droplet composition is discharged from the nozzle to the repair location.
- wiring can be easily formed even on a large-sized substrate with a meter angle, and only a necessary amount of material needs to be applied to a desired location. To improve the efficiency of use and reduce manufacturing costs.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020057020183A KR101167534B1 (ko) | 2003-04-25 | 2004-04-15 | 패턴의 제작방법 및 액적 토출장치 |
JP2004569996A JP4628109B2 (ja) | 2003-04-25 | 2004-04-15 | 半導体装置の作製方法 |
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US (1) | US20050043186A1 (ja) |
JP (1) | JP4628109B2 (ja) |
KR (1) | KR101167534B1 (ja) |
CN (1) | CN100467141C (ja) |
TW (1) | TWI381414B (ja) |
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Also Published As
Publication number | Publication date |
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TW200503055A (en) | 2005-01-16 |
US20050043186A1 (en) | 2005-02-24 |
JPWO2004096451A1 (ja) | 2006-07-13 |
WO2004096451A8 (ja) | 2005-01-20 |
CN100467141C (zh) | 2009-03-11 |
TWI381414B (zh) | 2013-01-01 |
JP4628109B2 (ja) | 2011-02-09 |
KR20060004686A (ko) | 2006-01-12 |
KR101167534B1 (ko) | 2012-07-23 |
CN1812851A (zh) | 2006-08-02 |
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