WO2004065656A1 - Ito薄膜、その成膜方法、透明導電性フィルム及びタッチパネル - Google Patents
Ito薄膜、その成膜方法、透明導電性フィルム及びタッチパネル Download PDFInfo
- Publication number
- WO2004065656A1 WO2004065656A1 PCT/JP2004/000527 JP2004000527W WO2004065656A1 WO 2004065656 A1 WO2004065656 A1 WO 2004065656A1 JP 2004000527 W JP2004000527 W JP 2004000527W WO 2004065656 A1 WO2004065656 A1 WO 2004065656A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thin film
- transparent conductive
- ito
- film
- conductive thin
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3464—Sputtering using more than one target
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0021—Reactive sputtering or evaporation
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/086—Oxides of zinc, germanium, cadmium, indium, tin, thallium or bismuth
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
- C23C14/3407—Cathode assembly for sputtering apparatus, e.g. Target
- C23C14/3414—Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
Definitions
- the present invention relates to a method for producing an ITO thin film and an ITO thin film, and more particularly to a method for producing an ITO thin film using an In / Sn alloy target, and an ITO thin film produced by this method.
- the present invention relates to a method capable of forming a crystal ITo transparent conductive thin film having excellent mechanical durability with high productivity at low cost.
- the present invention relates to a crystalline ITO transparent conductive thin film formed as described above, a transparent conductive film in which such a crystalline ITO transparent conductive thin film is formed on a polymer film, and a transparent conductive film formed by the method.
- the touch panel Background of the Invention
- ITO (Indium Tin Oxide) thin films have characteristics such as high conductivity and high transparency, and can be easily processed even finer.
- display electrodes for flat panel displays, window materials for solar cells, electrodes for touch panels It is used in a wide range of fields such as antistatic films.
- the size and definition have been advanced, and the demand for ITO thin films as display electrodes has been rapidly increasing.
- Methods for producing such ITO thin films can be broadly classified into chemical film forming methods such as spray pyrolysis and CVD, and physical film forming methods such as electron beam evaporation and sputtering.
- the sputtering method is widely used because it is a film forming method that can easily increase the area and obtain a high-performance film.
- an ITO sintered target obtained by sintering a mixture of indium oxide and tin oxide is usually used as a target. I'll be there.
- the production cost of the ITO sintering target is high due to the complex oxide sintering process, and the expensive target has caused the production cost of the ITO thin film to increase.
- the resistive touch panel When touching with a finger or drawing with a special pen, that part comes into contact with the facing electrode, and the signal is input by energizing.
- the resistive touch panel is advantageous for miniaturization, light weight, and thinness. It is widely used as an input device for home appliances and mobile terminals.
- the resistive touch panel is formed by forming an ITO transparent conductive thin film 5 on a polymer film 4 on a lower electrode 3 formed by forming an ITO transparent conductive thin film 2 on a glass plate 1.
- the upper electrode 6 is laminated via a spacer (microdot spacer) 7 so that the ITO transparent conductive thin films 2 and 5 face each other.
- a spacer microdot spacer
- the upper electrode 6 and the lower electrode 3 come into contact with each other and a signal is input.
- a hard coat layer 8 is provided for protecting the polymer film 4.
- the ITO transparent conductive thin films 2 and 3 of the touch panel are generally formed by DC sputtering.
- the ITO transparent conductive thin film 5 of the upper electrode 6 and the ITO transparent conductive thin film 2 of the lower electrode 3 repeat contact and non-contact with input by a finger or a pen.
- Transparent conductive materials such as ITO (indium tin oxide), which is a material for forming the ITO transparent conductive thin films 5 and 2, have low abrasion resistance.
- the ITO transparent conductive thin film 5 of the upper electrode 6 that is sometimes repeatedly deformed is easily cracked.
- the ITO transparent conductive thin film 2 of the same material is easily peeled off from the polymer film 4 as a base material in contact with and without contact between the ITO transparent conductive thin films 2 and 5.
- the ITO transparent conductive thin film 5 of the upper electrode 6 is damaged or peeled off, the electric resistance value of the ITO transparent conductive thin film 5 surface changes, the uniformity is lost, and the electrical characteristics are deteriorated. As a result, accurate input cannot be performed.
- Japanese Patent Application Laid-Open No. 2-194443 discloses that after an ITO film is formed, a heat treatment (anneal) is performed to crystallize the ITO. Is described.
- a heat treatment anneal
- On a resin substrate such as a polymer film When an ITO film is formed by sputtering at a high temperature, the substrate cannot be heated during the film formation, so that the formed ITO transparent conductive thin film is in an amorphous state. Amorphous films have low strength and cannot be used for applications requiring mechanical durability. For this reason, in the method of the above publication, the film strength is increased by annealing and crystallizing the formed ITO film.
- the annealing temperature cannot be increased. Longer annealing at a very low temperature is required.
- the first object of the present invention is to solve the above-mentioned conventional problems and to provide a method for efficiently producing an ITO thin film at low cost.
- the method for producing an ITO thin film according to the first aspect of the invention for achieving the first object is characterized in that the ITO thin film is formed by reactive sputtering using an InZSn alloy target.
- the first is to form an ITO thin film by reactive sputtering using an inexpensive In / Sn alloy target (hereinafter sometimes referred to as “IT target”).
- IT target an inexpensive In / Sn alloy target
- the conductivity of an ITO thin film varies depending on its degree of oxidation.In order to form an ITO thin film having good conductivity, it is necessary to form an ITO thin film having a predetermined degree of oxidation. However, when forming an ITO thin film by reactive sputtering using an IT target, it is extremely difficult to control the degree of oxidation of the formed ITO thin film.
- the oxygen concentration in the sputtering atmosphere is easily controlled by a plasma emission control or a plasma impedance control.
- a highly conductive ITO thin film having a desired degree of oxidation can be formed.
- a film can be stably formed at a higher speed for a long time.
- the present invention solves the above-mentioned conventional problems, and can crystallize by heating the substrate at a relatively low temperature during sputtering film formation. Therefore, low-temperature film formation that matches the heat resistance of the substrate requires annealing after film formation.
- a method for forming an ITO transparent conductive thin film according to the second aspect includes a method for forming an ITO transparent conductive thin film on a substrate by sputtering. as, heating using a total I tO target weight ratio of the following 6% S ⁇ 2 for the I n 2 0 3 and S n0 2, the substrate during the sputtering deposition to 1:90 70 ° C It is characterized in that a crystalline ITO transparent conductive thin film is formed by the method.
- I TO transparent conductive thin film of the third Asupe transfected in I TO transparent conductive thin film formed by sputtering on the substrate, the weight ratio of S nO 2 to the sum of the I n 2 O 3 and S n0 2 Is a crystalline ITO transparent conductive thin film formed on a substrate heated to 90 to 170 ° C. during sputtering film formation using an ITO target of 6% or less.
- the general high-density ITO target used for the sputtering deposition of the ITO thin film mainly has a SnO 2 ratio of 10%.
- it is advantageous density of the target manufacturing process, 3110 2 ratio is why Ru der about 1 0%.
- the substrate cannot be heated at a high temperature during the film formation, and the formed ITO thin film becomes amorphous. Without replacement, it hardly contributes to the development of conductivity (carrier generation), and it also becomes a scattering center of electrons and inhibits conductivity. It is presumed that Sn, which is an obstacle to conductivity in the ITO thin film, inhibits crystallization even when crystallization is performed as deposited by heating the substrate. When a thin film having a thickness of 40 nm or less was formed, no crystalline ITO film was formed even when the substrate was heated.
- the thin film of the deposited film thickness 4 0 nm on a heated substrate is amorphous.
- the second and third aspects are effective for polymer substrates that cannot be heated at high temperatures, and for ITOs with a thickness of 40 nm or less that cannot be crystallized with conventional ITO targets. Effective for membranes.
- S n 0 2 ratio of I TO target is 1-5%.
- the fourth aspect of the transparent conductive film is formed by depositing this ITO transparent conductive thin film on a polymer film, and the ITO transparent conductive thin film has excellent mechanical durability.
- an underlayer may be provided between the polymer film and the ITO transparent conductive thin film, thereby further improving the adhesion of the ITO transparent conductive thin film to the polymer film. Can be.
- the touch panel of the fifth aspect is equipped with such a transparent conductive film, and because of the good mechanical durability of the ITO transparent conductive thin film, the sliding durability during input is high. Excellent in nature.
- FIG. 1 is a cross-sectional view showing a configuration of a general touch panel. Preferred embodiments of the invention
- reactive sputtering is performed using an IT target as the target.
- an IT target an ITO thin film having an InZZn alloy composition corresponding to the In / Sn composition of the ITO thin film to be formed is used.
- 111 is 50 to 99% by weight, It is preferably an IT target containing 85 to 97% by weight, with the balance being substantially Sn.
- This IT target is preferably a high-purity IT target having an impurity content of 0.1% by weight or less, particularly 0.01% by weight or less, in order to improve the characteristics of the ITO thin film to be formed. .
- Reactive sputtering using such an IT target is performed in an atmosphere gas in which a predetermined amount of oxygen gas is introduced into a rare gas such as Ar, and the oxygen concentration in this atmosphere gas has a desired oxidation degree. It is preferable to control so that a thin film is formed.
- the oxygen concentration in this atmosphere also depends on other sputtering conditions such as the total pressure in the chamber, the pumping speed, etc., and it is difficult to specify the oxygen concentration. If it is 5 to 100, an ITO thin film having excellent conductivity can be obtained.Therefore, the oxygen concentration in the sputtering atmosphere should be reduced so that an ITO thin film having such a degree of oxidation can be formed. It is preferable to control.
- the oxygen concentration in the sputtering atmosphere can be easily controlled by plasma emission control or plasma impedance control. That is, the emission intensity in the plasma of oxygen or In or S11 is monitored, and the result is fed back to adjust the opening degree of the control valve for the oxygen gas flow rate, or the voltage or voltage during sputtering. The current value is monitored, and the result is fed back to adjust the opening of the control valve for the oxygen gas flow rate.
- the reactive sputtering conditions in the first aspect are not particularly limited, but are preferably as follows.
- Atmosphere Ar + ⁇ 2, 0 2 flow ratio 3-20%
- the alternating voltage application frequency is preferably about 10 to 80 kHz.
- the thickness of the ITO thin film formed in this manner is appropriately determined according to the intended use, but is usually about 200 to 800 nm. If the film thickness is smaller than this range, sufficient conductivity cannot be obtained, and if the film thickness is larger than this range, the transparency is lowered or the element becomes thick, which is not preferable.
- the substrate on which the ITO thin film is formed glass or various organic resin films can be used.
- the organic resin film include polyester, polyethylene terephthalate (PET), polybutylene terephthalate, polymethyl methacrylate (PMMA), acrylic, polycarbonate (PC), polyimide (PI), polystyrene, triacetate (TAC), and polyvinyl alcohol.
- PET, PC, PMMA and TAC films, especially PET and TAC films are preferred.
- a 500 nm thick ITO thin film was formed on a glass substrate by reactive sputtering under the following conditions. Reactive sputtering was performed by setting the IT target to a single force sword of a magnetron DC sputtering device.
- Impurities 0.0 1% by weight or less
- the plasma emission control or Purazumai emissions are impedance controlled, to control the 0 2 flow ratio in Ar + O 2 atmosphere to the values shown in Table 1.
- the film forming speed (film thickness formed per unit time) was examined, and the results are shown in Table 1.
- the conductivity of the formed ITO thin film was examined by the F underpauw method, and the results are shown in Table 1.
- Example 1 an ITO thin film was formed in the same manner except that two IT targets were set on a dual force sword of a magnetron DC sputtering apparatus and reactive sputtering was performed under the following conditions. And the conductivity was examined, and the results are shown in Table 1.
- an ITO thin film can be efficiently manufactured at low cost by reactive sputtering using an In / Sn alloy target.
- the SnO 2 ratio is preferably 6% or less as an ITO target. Use 1 to 5%. If S n O 2 ratio of I TO target is in excess of 6%, it has a can forming a crystalline ITO film. In terms of crystallization of I TO film better less S nO 2 ratio.
- S N_ ⁇ 2 Ratio is excessively small I TO targets, at present it is highly targeted manufacturing cost, it can not increase the target density, discharge voltage exacerbate conductive targets such as accidentally by upper temperature For this reason, the SnO 2 ratio is preferably 1% or more.
- the heating temperature of the substrate during sputtering film formation is 1:90 70 ° C, Ru preferably 1 1 0 ⁇ 1 60 ° C der. If the heating temperature is too low, crystallization cannot be performed by as deposited, and if it is too high, the substrate is deteriorated by heat when a substrate made of a high molecular material is used.
- the film forming pressure is preferably in the range of 0.3 to 3.0 Pa from the viewpoint of ease of subsequent crystallization. If the deposition pressure is less than 0.3 Pa, it is difficult to maintain the plasma discharge, and the discharge voltage is increased, and the high energy particles incident on the substrate may damage the ITO thin film. If the deposition pressure exceeds 3 Pa, the scattering of sputtered particles will increase and the deposition rate will decrease, and the electrical resistivity of the ITO thin film will increase.
- the film forming pressure is particularly preferably in the range of 0.5 to 2.5 Pa.
- the transparency of the ITO thin film is improved It is preferable because conductivity can be improved.
- the thickness of the ITO thin film there is no particular limitation on the thickness of the ITO thin film, and 1 n n! Although it is possible to form an ITO film having a wide thickness of up to 5 ⁇ , in the present invention, particularly, an ITO thin film having a thickness of 40 nm or less, which is difficult to crystallize in an azdepot, for example, a film thickness of 5 to Suitable for forming a 40 nm ITO thin film.
- Examples of the substrate on which the ITO transparent conductive thin film is formed include a polymer film described below, other high molecular plates, glass, and metal.
- the above method in which the substrate is heated at a low temperature for crystallization during film formation is suitable when a polymer film having low heat resistance is used as the substrate.
- This substrate may be subjected to corona treatment or plasma treatment in a vacuum prior to film formation to improve the adhesion of the ITO transparent conductive thin film.
- An underlayer for the purpose of, for example, an underlayer of a transparent conductive film described later may be formed.
- a crystallized thin film can be formed by as deposited, and annealing after film formation is unnecessary.
- the fourth aspect of the transparent conductive film is obtained by forming an ITO transparent conductive thin film on a polymer film as a substrate by such a film forming method. That is, a crystalline ITO transparent conductive thin film is formed directly on a polymer film as a substrate by a sputtering method.
- the resin materials for the polymer film used as the substrate include polyester, polyethylene terephthalate (PET), polybutylene terephthalate, polymethyl methacrylate (PMMA), acrylic, polycarbonate (PC), polystyrene, and triacetate (TAC). ), Polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyethylene, ethylene monoacetate copolymer, polybutyral, metal ion-crosslinked ethylene monomethacrylate copolymer, polyurethane, cellophane, etc. Particularly preferred are PET, PC, PMMA, and TAC, especially PET and TAC, which have high strength.
- the thickness of the polymer film varies depending on the application of the transparent conductive film, etc., but for the application as the upper electrode of the touch panel, it is usually 13! ⁇ 0.5mm Is done. If the thickness of the polymer film is less than 13 m, sufficient durability as an upper electrode cannot be obtained.If the thickness exceeds 0.5 mm, the obtained touch panel becomes thicker. The flexibility of this is also impaired, which is not preferable.
- the thickness of the ITO transparent conductive thin film formed on the polymer film is preferably 1 to 500 nm, particularly preferably 5 to 40 nm.
- the underlayer is preferably made of a silicon compound.
- the silicon compound include SiC x , SiO x , Si N x , Si C x O y , and Si C x N y , S i O x N y or S i C x O y N z .
- the underlayer may include two or more of such silicon compounds, or may be a stacked film of these silicon compounds.
- the thickness of the underlayer is excessively thin, the effect of improving the adhesion between the polymer film and the ITO transparent conductive thin film and the effect of improving the scratch resistance due to the formation of the underlayer cannot be sufficiently obtained. Even if the thickness of the underlayer is excessively large, there is no remarkable difference in the effect of improving the adhesion and the abrasion resistance, so that the film formation cost is high and the thickness of the transparent conductive film is preferably large. Absent. For this reason, the thickness of the underlayer is 0.5 ⁇ to 100 ⁇ ⁇ , and particularly, Inn! Preferably it is ⁇ 50 ⁇ m.
- the underlayer can also be formed by applying the silicon compound as it is or as a liquid such as a solution in a solvent such as alcohol, ketone, toluene or hexane to the polymer film and drying.
- Forming the underlayer by physical vapor deposition such as vacuum deposition, sputtering, ion plating, or chemical vapor deposition such as CVD, preferably by sputtering, makes the obtained underlayer dense and polymer Increases film adhesion, reduces contamination during film formation, enables high-speed film formation, and enables subsequent ITO transparent conductive thin film formation to be performed continuously in the same device And improve the film formation efficiency.
- the sputtering conditions for forming the underlayer are not particularly limited, and the sputtering can be performed at a degree of vacuum of 0.05 to 3.0 Pa and an applied power density of about 2 to 500 kWZm 2 .
- the reactive gas flow rate and the film formation time during the sputtering film formation an underlayer having a desired composition and a desired film thickness can be formed.
- a hard coat layer may be formed on the surface of the polymer film opposite to the surface on which the ITO transparent conductive thin film is formed.
- the hard coat layer include an acrylic layer, an epoxy layer, a urethane layer, a silicon layer, and the like.
- a plasma treatment may be performed on the surface of the polymer film according to a conventional method before forming the underlayer on the polymer film.
- the plasma treatment enhances the adhesion between the polymer film and the underlayer by adding a functional group to the surface of the polymer film, and the adhesion of the underlayer to the polymer film by the anchor effect of the surface etching. Increases strength and further enhances peel prevention effect.
- a coating layer may be further formed on the ITO transparent conductive thin film, whereby the durability can be further improved.
- the touch panel of the fifth aspect is provided with such a transparent conductive film as the upper electrode, and the mechanical durability of the ITO transparent conductive thin film is excellent, so that the durability and reliability can be improved. Excellent in nature.
- the fourth conductive transparent film is suitable for use as the upper electrode of a touch panel, but should be used effectively for transparent switching devices and other optical transparent conductive films. Can be.
- a PET film having a thickness of 188 / zm or a slide glass substrate having a UV-curable acrylic hard coat layer formed on one surface was used as the substrate.
- S i as a target magnetron DC sputtering device was set respectively and S nO 2 ratio of 3% of the I TO target.
- the vacuum chamber one described above was set P ET film was evacuated to 5 X 1 0- 4 P a turbo molecular pump. After that, Ar gas was introduced as a mixed gas at a flow rate of 160 sccm and O 2 gas at a flow rate of 40 sccm, and after adjusting to 0.5 Pa, 4 kW of electric power was applied to the Si target.
- An SiO 2 thin film having a thickness of about 50 nm was formed as an underlayer on the PET film surface opposite to the surface on which the hard coat layer was formed.
- the inside of the vacuum chamber was evacuated again, the substrate was heated, and while the substrate was kept at 130 ° C, Ar gas was introduced at a flow rate of 197 sccm and O 2 gas was introduced as a mixed gas at a flow rate of 3 sccm. After adjusting the pressure to 0.5 Pa, a power of 4 kW was applied to the ITO target, and an ITO thin film having a thickness of about 30 nm was formed on SiO 2 .
- the surface resistance of the ITO thin film was measured using a surface resistance measuring device (Loresta AP, manufactured by Mitsubishi Chemical Corporation).
- the incidence angle was fixed at 0.5 degrees, the diffraction peak was measured by 2 2 scan, and the crystallinity was determined.
- the peak of the (222) plane of ITO was 500 cps or more, it was determined as a crystal.
- the ITO thin side is attached to the ITO glass substrate with a microdot spacer, and the transparent conductive film hard coating layer forming surface is made of a polyacetal resin input pen (tip 0 8R) and a reciprocating sliding writing test was performed with a load of 250 gf. After the test, the linearity value was measured. Those with a linearity value of 1.5% or less were evaluated as good, and those with a linearity value of more than 1.5% were evaluated as bad. This test was performed on the sample before annealing and the sample after crystallization by annealing.
- Example 7 S n0 2 ratio of 5% I TO target as I TO Target A film was formed in the same manner except that the heating temperature of the substrate was set to 160 ° C, and the surface resistance was measured, the crystallinity was determined, and the sliding writing test was performed. This is shown in Figure 2.
- Example 7 using the S 11_Rei 2 ratio of 1 0% I TO Target Tsu preparative as I TO target, except that no heating the substrate during I TO thin film deposition is performed film formation in the same manner, Similarly, the surface resistance was measured, the crystallinity was determined, and a sliding handwriting test was performed. The results are shown in Table 2.
- Example 7 deposition is performed in the same manner except for using S n0 2 ratio of 1 0% I TO Target Tsu preparative as I TO targets, as well as measurement of the surface resistance value, the crystallinity determination and A sliding writing test was performed, and the results are shown in Table 2.
- Example 7 a film was formed in the same manner except that the substrate was not heated during the formation of the ITO thin film. Similarly, the surface resistance was measured, the crystallinity was determined, and a sliding writing test was performed. Table 2 shows the results.
- the ITO film As described in detail above, by performing low-temperature heating appropriate to the heat resistance of the substrate during sputtering film formation, even if the ITO film is 40 nm or less in thickness, it can be crystallized at the azdepot. It can be carried out. For this reason, it becomes possible to directly form a crystalline ITO transparent conductive thin film by sputtering, and the need for a nozzle after film formation becomes unnecessary, so that productivity and cost are greatly improved.
- This crystalline ITO transparent conductive thin film can provide a transparent conductive film with excellent mechanical durability, and a touch panel with high durability and excellent reliability can be provided using such a transparent conductive film. Is done.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04704353A EP1591554A4 (en) | 2003-01-24 | 2004-01-22 | THIN FILM OF TIN OXIDE AND INDIUM (ITO), PROCESS FOR FORMING THE FILM, TRANSPARENT CONDUCTIVE FILM AND TOUCH SCREEN |
JP2005508114A JPWO2004065656A1 (ja) | 2003-01-24 | 2004-01-22 | Ito薄膜、その成膜方法、透明導電性フィルム及びタッチパネル |
US11/184,811 US20060003188A1 (en) | 2003-01-24 | 2005-07-20 | ITO thin film, method of producing the same, transparent conductive film, and touch panel |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-016305 | 2003-01-24 | ||
JP2003016305 | 2003-01-24 | ||
JP2003065264 | 2003-03-11 | ||
JP2003-065264 | 2003-03-11 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/184,811 Continuation US20060003188A1 (en) | 2003-01-24 | 2005-07-20 | ITO thin film, method of producing the same, transparent conductive film, and touch panel |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004065656A1 true WO2004065656A1 (ja) | 2004-08-05 |
Family
ID=32775193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/000527 WO2004065656A1 (ja) | 2003-01-24 | 2004-01-22 | Ito薄膜、その成膜方法、透明導電性フィルム及びタッチパネル |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060003188A1 (ja) |
EP (1) | EP1591554A4 (ja) |
JP (1) | JPWO2004065656A1 (ja) |
WO (1) | WO2004065656A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006342371A (ja) * | 2005-06-07 | 2006-12-21 | Bridgestone Corp | 導電性化合物薄膜及びその成膜方法 |
WO2018230094A1 (ja) * | 2017-06-13 | 2018-12-20 | 日東電工株式会社 | 電磁波吸収体及び電磁波吸収体付成形品 |
JP2021511650A (ja) * | 2018-01-30 | 2021-05-06 | 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co.,Ltd. | 電子基板及びその製造方法、電子装置 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4646131B2 (ja) * | 2003-02-03 | 2011-03-09 | 株式会社ブリヂストン | 透明導電性フィルム、透明導電板及びタッチパネル |
TW200742610A (en) * | 2006-05-10 | 2007-11-16 | Tpk Touch Solutions Inc | Method of hiding transparent electrodes on a transparent substrate |
US8049862B2 (en) * | 2008-08-08 | 2011-11-01 | Apple Inc. | Indium tin oxide (ITO) layer forming |
CN102194539A (zh) * | 2010-03-11 | 2011-09-21 | 联享光电股份有限公司 | 透明导电叠层体及其制造方法 |
TWI420543B (zh) * | 2010-10-29 | 2013-12-21 | Win Optical Co Ltd | A transparent conductive thin film with crystal rearrangement and a method for forming the same |
US20120213949A1 (en) * | 2011-02-18 | 2012-08-23 | Chien-Min Weng | Method for producing indium tin oxide layer with controlled surface resistance |
US9524806B2 (en) * | 2012-02-07 | 2016-12-20 | Purdue Research Foundation | Hybrid transparent conducting materials |
US20140014171A1 (en) | 2012-06-15 | 2014-01-16 | Purdue Research Foundation | High optical transparent two-dimensional electronic conducting system and process for generating same |
CN104769739B (zh) * | 2012-11-14 | 2018-01-23 | 株式会社Lg化学 | 透明导电膜和包含所述透明导电膜的有机发光器件 |
WO2016034197A1 (en) * | 2014-09-01 | 2016-03-10 | Applied Materials, Inc. | Assembly and method for deposition of material on a substrate |
US20170243672A1 (en) * | 2015-02-27 | 2017-08-24 | Purdue Research Foundation | Composite transparent conducting films and methods for production thereof |
US10585505B2 (en) | 2015-03-31 | 2020-03-10 | Toyobo Co., Ltd. | Transparent conductive film |
JP7117084B2 (ja) * | 2017-06-13 | 2022-08-12 | 日東電工株式会社 | 電磁波吸収体及び電磁波吸収体付成形品 |
CN111575666B (zh) * | 2020-06-10 | 2022-04-12 | 南京邮电大学 | 一种制备(222)强织构ito薄膜的方法 |
CN112614902A (zh) * | 2020-11-27 | 2021-04-06 | 北京绿兴能源科技有限公司 | 一种用于异质结太阳电池的复合结构透明导电薄膜及其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01137520A (ja) * | 1987-11-24 | 1989-05-30 | Daicel Chem Ind Ltd | 結晶質透明導電性積層体の製造方法 |
JPH02194943A (ja) * | 1989-01-25 | 1990-08-01 | Teijin Ltd | 透明導電性積層体 |
JPH09226043A (ja) * | 1996-02-26 | 1997-09-02 | Mitsui Toatsu Chem Inc | 反射体 |
JP2002121664A (ja) * | 2000-10-17 | 2002-04-26 | Nitto Denko Corp | 透明導電性薄膜の製膜方法および製膜装置 |
JP2002173762A (ja) * | 2000-09-29 | 2002-06-21 | Sanyo Shinku Kogyo Kk | 透明導電膜等の成膜方法とその装置 |
JP2002180247A (ja) * | 2000-12-12 | 2002-06-26 | Nitto Denko Corp | 透明導電積層体の製造方法および製造装置 |
US6475354B1 (en) * | 1997-07-10 | 2002-11-05 | Canon Kabushiki Kaisha | Deposited film producing process, photovoltaic device producing process, and deposited film producing system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225273A (en) * | 1989-12-28 | 1993-07-06 | Teijin Limited | Transparent electroconductive laminate |
JP2000238178A (ja) * | 1999-02-24 | 2000-09-05 | Teijin Ltd | 透明導電積層体 |
US6743488B2 (en) * | 2001-05-09 | 2004-06-01 | Cpfilms Inc. | Transparent conductive stratiform coating of indium tin oxide |
TW588570B (en) * | 2001-06-18 | 2004-05-21 | Semiconductor Energy Lab | Light emitting device and method of fabricating the same |
KR100495407B1 (ko) * | 2001-08-20 | 2005-06-14 | 티디케이가부시기가이샤 | 유기el소자 및 그 제조방법 |
JP3785109B2 (ja) * | 2002-04-08 | 2006-06-14 | 日東電工株式会社 | 透明導電積層体の製造方法 |
TWI320804B (en) * | 2002-12-18 | 2010-02-21 | Sony Chemicals Corp | Transparent electroconductive film and film forming method of the same |
US6990132B2 (en) * | 2003-03-20 | 2006-01-24 | Xerox Corporation | Laser diode with metal-oxide upper cladding layer |
-
2004
- 2004-01-22 EP EP04704353A patent/EP1591554A4/en not_active Withdrawn
- 2004-01-22 WO PCT/JP2004/000527 patent/WO2004065656A1/ja active Application Filing
- 2004-01-22 JP JP2005508114A patent/JPWO2004065656A1/ja active Pending
-
2005
- 2005-07-20 US US11/184,811 patent/US20060003188A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01137520A (ja) * | 1987-11-24 | 1989-05-30 | Daicel Chem Ind Ltd | 結晶質透明導電性積層体の製造方法 |
JPH02194943A (ja) * | 1989-01-25 | 1990-08-01 | Teijin Ltd | 透明導電性積層体 |
JPH09226043A (ja) * | 1996-02-26 | 1997-09-02 | Mitsui Toatsu Chem Inc | 反射体 |
US6475354B1 (en) * | 1997-07-10 | 2002-11-05 | Canon Kabushiki Kaisha | Deposited film producing process, photovoltaic device producing process, and deposited film producing system |
JP2002173762A (ja) * | 2000-09-29 | 2002-06-21 | Sanyo Shinku Kogyo Kk | 透明導電膜等の成膜方法とその装置 |
JP2002121664A (ja) * | 2000-10-17 | 2002-04-26 | Nitto Denko Corp | 透明導電性薄膜の製膜方法および製膜装置 |
JP2002180247A (ja) * | 2000-12-12 | 2002-06-26 | Nitto Denko Corp | 透明導電積層体の製造方法および製造装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1591554A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006342371A (ja) * | 2005-06-07 | 2006-12-21 | Bridgestone Corp | 導電性化合物薄膜及びその成膜方法 |
JP4720298B2 (ja) * | 2005-06-07 | 2011-07-13 | 株式会社ブリヂストン | 導電性化合物薄膜の成膜方法 |
WO2018230094A1 (ja) * | 2017-06-13 | 2018-12-20 | 日東電工株式会社 | 電磁波吸収体及び電磁波吸収体付成形品 |
JP2019004006A (ja) * | 2017-06-13 | 2019-01-10 | 日東電工株式会社 | 電磁波吸収体及び電磁波吸収体付成形品 |
CN110771273A (zh) * | 2017-06-13 | 2020-02-07 | 日东电工株式会社 | 电磁波吸收体及带有电磁波吸收体的成形品 |
CN110771273B (zh) * | 2017-06-13 | 2020-12-01 | 日东电工株式会社 | 电磁波吸收体及带有电磁波吸收体的成形品 |
JP7058475B2 (ja) | 2017-06-13 | 2022-04-22 | 日東電工株式会社 | 電磁波吸収体及び電磁波吸収体付成形品 |
JP2021511650A (ja) * | 2018-01-30 | 2021-05-06 | 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co.,Ltd. | 電子基板及びその製造方法、電子装置 |
Also Published As
Publication number | Publication date |
---|---|
US20060003188A1 (en) | 2006-01-05 |
JPWO2004065656A1 (ja) | 2006-05-18 |
EP1591554A4 (en) | 2010-04-07 |
EP1591554A1 (en) | 2005-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20060003188A1 (en) | ITO thin film, method of producing the same, transparent conductive film, and touch panel | |
CN1826423B (zh) | 透明导电氧化物 | |
US6896981B2 (en) | Transparent conductive film and touch panel | |
EP1944386B1 (en) | Transparent conductive film and method for producing the same | |
CN101221935B (zh) | 透明导电膜及其制造方法 | |
JP4670877B2 (ja) | 酸化亜鉛系透明導電膜積層体と透明導電性基板およびデバイス | |
US6787253B2 (en) | Transparent electroconductive film and touch panel | |
WO2000051139A1 (fr) | Stratifie conducteur transparent, son procede de fabrication, et dispositif d'affichage comprenant ce stratifie conducteur transparent | |
US20090286071A1 (en) | Transparent conductive film and method for production thereof | |
JP2000040429A (ja) | 酸化亜鉛系透明導電膜の製造方法 | |
KR100336621B1 (ko) | 고분자 기판 위의 인듐산화물 또는 인듐주석산화물 박막증착 방법 | |
JP2004149884A (ja) | Ito透明導電薄膜の成膜方法とito透明導電薄膜、透明導電性フィルム及びタッチパネル | |
JP2003109434A (ja) | 透明導電フィルム及びタッチパネル | |
JP2007311041A (ja) | 結晶性ZnO系透明導電薄膜の成膜方法、結晶性ZnO系透明導電薄膜及びフィルム、並びに抵抗膜式タッチパネル | |
JP4894103B2 (ja) | 透明導電フィルム及びタッチパネル | |
JP5298408B2 (ja) | 結晶性ito薄膜の成膜方法、結晶性ito薄膜及びフィルム、並びに抵抗膜式タッチパネル | |
CN109811308A (zh) | 一种ito导电膜制作工艺 | |
JP2008192460A (ja) | 透明導電フィルムおよびその製造方法 | |
JP2004193008A (ja) | 透明導電薄膜の成膜方法と透明導電薄膜、透明導電性フィルム及びタッチパネル | |
JP3654841B2 (ja) | 透明導電性フィルムおよびその製造方法 | |
KR20160093959A (ko) | 인듐 아연 주석 산화물 제조 방법, 이를 포함하는 태양 전지 및 이의 제조 방법 | |
CN101318778A (zh) | 太阳能导电玻璃以及生产工艺 | |
JP5632135B2 (ja) | ZnO膜の成膜方法 | |
JP4929541B2 (ja) | 透明導電フィルム及びタッチパネル | |
CN102465273A (zh) | 多元复合透明导电薄膜制备方法及其制备的薄膜和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005508114 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004704353 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11184811 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2004704353 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11184811 Country of ref document: US |