WO2010035716A1 - 透明導電膜製造用の酸化物焼結体 - Google Patents
透明導電膜製造用の酸化物焼結体 Download PDFInfo
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- WO2010035716A1 WO2010035716A1 PCT/JP2009/066394 JP2009066394W WO2010035716A1 WO 2010035716 A1 WO2010035716 A1 WO 2010035716A1 JP 2009066394 W JP2009066394 W JP 2009066394W WO 2010035716 A1 WO2010035716 A1 WO 2010035716A1
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Definitions
- the present invention relates to an oxide sintered body for producing a transparent conductive film formed as an electrode in a flat panel display or the like. Moreover, this invention relates to the transparent conductive film obtained using the said oxide sintered compact as a sputtering target, and its manufacturing method.
- ITO (Indium Tin Oxide) films are superior to other transparent conductive films in features such as low resistivity, high transmittance, and ease of microfabrication. Used across disciplines. At present, most of the ITO film forming methods in industrial production processes are so-called sputter film forming methods in which sputtering is performed using an ITO sintered body as a target because it can be produced in a large area with good uniformity and productivity.
- the crystallinity of the ITO film immediately after sputtering is amorphous, and fine processing such as etching is performed in an amorphous state, and then the thermal annealing treatment, In many cases, the ITO film is crystallized. This is because the ITO amorphous film is advantageous in production because the etching rate is an order of magnitude higher than the crystal chamber film, and the ITO crystal film can enjoy both advantages of low resistivity. Because.
- the crystallization temperature of the ITO film is about 150 ° C., and most of the film is amorphous because it is only below this temperature, but it is among the particles flying to the substrate by sputtering. Some of them have a considerably high energy, and the transfer of energy after reaching the substrate causes the temperature of the film to become higher than the crystallization temperature, resulting in a portion where the film is crystallized.
- the etching rate of the part is about two orders of magnitude lower than that of the amorphous part. It will remain, causing problems such as wiring shorts.
- the moisture concentration in the sputtering chamber gradually decreases with the elapse of the sputtering time, even if the moisture concentration is initially appropriate, the concentration gradually becomes less than the appropriate concentration. A part of the film crystallizes.
- the moisture concentration to be added is increased, the crystallization temperature when the film is crystallized by subsequent annealing becomes very high, There arises a problem that the resistivity of the obtained film becomes very high.
- an amorphous stable transparent conductive material is used in part instead of an ITO film in which a crystalline film is easily formed.
- an amorphous film is obtained by sputtering a target having a composition in which zinc is added to indium oxide, and the resistivity of the film is about 0.5 m ⁇ cm. The value is higher than that of the crystallized ITO film. Further, the film has an average visible light transmittance of about 85%, which is inferior to the ITO film. There is also a drawback that the film has poor moisture resistance.
- Patent Document 1 describes a transparent conductive film characterized in that it contains indium oxide and tin oxide as main components and contains an oxide of at least one metal selected from the group consisting of magnesium and nickel. As a result, the film becomes dense and the electron mobility is increased to about 1.5 ⁇ 10 cm 2 ⁇ s ⁇ 1 ⁇ V ⁇ 1 . It is also described that moisture resistance and ultraviolet resistance can be improved by appropriately adding magnesium or nickel. It is described that the mixing ratio of the magnesium compound or nickel compound to the indium compound is preferably 0.05 or less when converted to incidium and magnesium or nickel M and expressed by the formula M / (M + In).
- Patent Document 2 discloses that the resistivity of a transparent conductive film is reduced by adding nickel oxide to indium oxide. It is preferable that the amount of nickel oxide added is 2 to 25 mol% because the specific resistance is 2 ⁇ 10 ⁇ 4 ⁇ cm or less.
- Patent Document 3 in order to provide an indium oxide-based sputtering target for a high-resistance transparent conductive film having a resistivity of about 0.8 to 10 ⁇ 10 ⁇ 3 ⁇ cm, insulative oxidation is performed on indium oxide or tin-doped indium oxide. The target containing a thing is shown and manganese oxide is mentioned as an example of an insulating oxide. However, Patent Document 3 does not describe a sputtering target for obtaining a low-resistance conductive film.
- Patent Document 4 discloses a target for adding manganese to indium oxide or tin-doped indium oxide in a sintered body made of indium oxide and tin oxide, assuming that a sintered body containing manganese can achieve an extremely high sintering density. It is shown. It is described that manganese is adjusted so that the content in the finally obtained ITO sintered body is 5 to 5000 ppm.
- the manganese content is preferably 10 to 500 ppm, and even in specific examples, only a maximum of 500 ppm is added.
- Patent Document 5 discloses that the resistivity of a transparent conductive film is reduced by adding manganese oxide to indium oxide. It is preferable that the amount of manganese oxide added is 2 to 15 mol% because the specific resistance is 2 ⁇ 10 ⁇ 4 ⁇ cm or less.
- Patent Document 6 shows a film containing trivalent cations in indium oxide, and aluminum is cited as an example. By doing so, it is described that a transparent conductive film having lower resistance and improved etching characteristics can be obtained.
- the purpose of Patent Document 6 is to prevent a decrease in mobility due to ionized impurity scattering to obtain a low resistivity and workability, and in the examples, there is only an example of yttrium. . Therefore, it is completely unknown whether aluminum has the effect as claimed in the patent application.
- Patent Document 7 states that “a transparent conductive film containing an In oxide as a main component and containing Ge or containing Ge and Sn becomes an amorphous film, and therefore etching is not possible. “Easy and excellent workability” (paragraph 0015). This is because, under certain film formation conditions, the addition of Ge is effective for amorphizing the In 2 O 3 film and does not impair the electrical resistivity and transmittance of the film (paragraph 0021).
- the film formation conditions are as follows: “The film formation temperature is 100 to 300 ° C., the Ge addition amount is 2 to 12 atomic% with respect to the total of Ge amount and In amount, and the oxygen partial pressure is The film is formed at 0.02 mTorr or more ”(paragraph 0029).
- an object of the present invention is an ITO-based amorphous transparent conductive film used for display electrodes for flat panel displays, which can be produced without adding water during sputtering without heating the substrate, and has high etching properties and low resistance. It is to provide a transparent conductive film that satisfies both of the efficiency improvement at a high level. Moreover, another subject of this invention is providing the sputtering target which can manufacture such a transparent conductive film.
- the present inventors have increased the etching rate of the film and reduced the resistivity of the film by adding an appropriate concentration of an appropriate dopant. And found that a transparent conductive film capable of solving the above-mentioned problems can be obtained by sputtering a sintered body in which nickel or the like is added to indium oxide or tin-doped indium oxide at an appropriate concentration under predetermined conditions.
- the present invention has been completed.
- Indium oxide as a main component including at least one selected from nickel, manganese, aluminum, and germanium as the first additive element, and the total content of the first additive element is the sum of indium and the first additive element
- An oxide sintered body characterized by being 2 to 12 atomic% based on the amount.
- Indium oxide as a main component including at least one selected from nickel, manganese, aluminum, and germanium as the first additive element, including tin as the second additive element, and the total content of the first additive element being 2 to 12 atomic% with respect to the total amount of indium, the first additive element, and tin, and the tin content is 2 to 15 atomic% with respect to the total amount of indium and tin
- An oxide sintered body characterized by the above.
- the first feature of the present invention is that the added nickel or the like prevents crystallization due to the effect of cutting the network structure bond such as indium oxide.
- the second feature of the present invention is that such a dopant that promotes amorphization simultaneously contributes to lowering the resistivity of the film and improves the etching characteristics.
- the third feature of the present invention is that the addition of tin can further promote the reduction of the resistivity of the film.
- the present invention by using a sputtering target in which nickel or the like is added to indium oxide or the like at an appropriate concentration, sputter film formation is performed under a predetermined condition without adding water during film formation and without heating the substrate. As a result, an amorphous film can be obtained. Further, the obtained film is amorphous as a whole, and is excellent in productivity because of a high etching rate. Further, since the resistivity of the film is low, it is suitable as a transparent conductive film.
- the film When nickel, manganese, aluminum and germanium as the first additive element are added to indium oxide or tin-doped indium oxide, the film is prevented from crystallizing and has an effect of making the film amorphous. These may be added alone or in combination of two or more. However, if the total content of the first additive element is too small relative to the total amount of indium and the first additive element (if tin is doped, the total amount of indium, the first additive element and tin) There is almost no effect of making the film amorphous, and the sputtered film is partially crystallized. As a result, the etching rate is reduced and etching residues are generated. Conversely, if the total content of the first additive element is too large relative to the total amount of indium, the first additive element, and (tin), the resistivity of the amorphous film becomes high.
- the total content of the first additive element is 2 to 12 atomic% with respect to the total amount of indium, the first additive element, and (tin), and 4 to 8 atomic% from the viewpoint of obtaining a low film resistivity.
- the content is 5 to 7 atomic%.
- nickel is preferable. This is because nickel has a high effect of reducing the resistivity of the amorphous film as compared with the other first additive elements, and also has a high function of increasing the etching rate.
- the tin concentration range suitable as ITO is such that the tin concentration Sn is 2 to 15 atomic%, preferably 8 to 12 atomic%, with respect to the total amount of indium and tin.
- oxide sintered body The manufacturing method of the oxide sintered body will be described below.
- indium oxide powder as a raw material oxide powder of the first additive element and, if necessary, tin oxide powder are weighed at a predetermined ratio and mixed. To do. If the mixing is insufficient, the manufactured target has a high resistivity region and a low resistivity region due to segregation of the first additive element, and abnormal discharge such as arcing due to charging in the high resistivity region during sputtering film formation. Is likely to occur.
- a material other than the oxide form may be used as a raw material, but an oxide is preferable from the viewpoint of handling.
- the atmospheric gas may be in the air because it is not necessary to take into consideration the oxidation of the raw material.
- indium oxide and the oxide of the first additive element may be pre-fired as a mixed powder.
- the mixed powder is finely pulverized. This is for uniform dispersion of the raw material powder in the target.
- the presence of a raw material having a large particle size means that the composition is uneven depending on the location.
- the fine pulverization is desirably performed until the average particle size (D50) of the raw material powder is 1 ⁇ m or less, preferably 0.6 ⁇ m or less.
- water is added to the mixed powder, and the mixture is finely pulverized with zirconia beads having a diameter of 1 mm for about 1.5 to 3.0 hours as a slurry having a solid content of 40 to 60% by weight.
- the mixed powder is granulated. This is to improve the fluidity of the raw material powder and to make the filling state during press molding sufficiently satisfactory.
- PVA polyvinyl alcohol
- serving as a binder is mixed at a rate of 100 to 200 cc per 1 kg of slurry, under conditions of granulator inlet temperature 200 to 250 ° C., outlet temperature 100 to 150 ° C., disk rotation speed 8000 to 10,000 rpm. Granulate.
- press molding is performed.
- a mold having a predetermined size is filled with granulated powder, and a compact is obtained at a surface pressure of 700 to 900 kgf / cm 2 .
- the surface pressure is 700 kgf / cm 2 or less, a molded article having a sufficient density cannot be obtained, and it is not necessary to make the surface pressure 900 kgf / cm 2 or more.
- the sintering temperature is 1450 to 1600 ° C.
- the holding time is 4 to 10 hours
- the heating rate is 4 to 6 ° C./min
- the temperature is lowered by furnace cooling.
- the sintering temperature is lower than 1450 ° C.
- the density of the sintered body is not sufficiently increased, and when it exceeds 1600 ° C., the life of the furnace heater is reduced.
- the holding time is shorter than 4 hours, the reaction between the raw material powders does not proceed sufficiently, the density of the sintered body does not increase sufficiently, and if the sintering time exceeds 10 hours, the reaction has occurred sufficiently, so it is unnecessary. Waste of energy and time is generated, which is not preferable in production.
- the sintered body thus obtained has a relative density of 98 to 100%, for example, about 99.9%, and a bulk resistance of about 0.1 to 3.0 m ⁇ cm, for example, about 0.13 m ⁇ cm.
- the manufacturing method of a sputtering target is demonstrated below.
- the thickness is processed to about 4 to 6 mm, and the diameter is processed to a size corresponding to the sputtering device, and is made of copper.
- a sputtering target can be obtained by bonding an indium alloy or the like as a bonding metal to the backing plate.
- the sputtering film forming method will be described below.
- the transparent conductive film of the present invention uses the sputtering target of the present invention, the argon gas pressure is 0.4 to 0.8 Pa, the distance between the target and the substrate is 50 to 110 mm, the glass or the like is used as a substrate, and the sputtering power is increased.
- the target size is 8 inches, it can be obtained by sputtering film formation at 200 to 900 W.
- the sputtering method is preferably DC magnetron sputtering.
- the distance between the substrates is shorter than 50 mm, the kinetic energy of the target constituent element particles reaching the substrate becomes too large, the damage to the substrate is great, the film resistivity increases, and the film is partially crystallized. There is a possibility.
- the distance between the target and the substrate is longer than 110 mm, the kinetic energy of the target constituent element particles reaching the substrate becomes too small, a dense film is not formed, and the resistivity increases.
- Appropriate ranges for argon gas pressure and sputtering power are as described above for the same reason. Further, when the substrate temperature is also heated, the film is easily crystallized. Therefore, the film obtained can be made amorphous by appropriately selecting these sputtering conditions.
- the film characteristic evaluation method will be described below.
- the crystallinity of the transparent conductive film obtained as described above is determined by the presence or absence of a peak as shown by the crystalline film by X-ray diffraction measurement (XRD measurement) of the film, or by etching the film with oxalic acid. It can be confirmed whether or not an etching residue as shown in FIG. That is, in the X-ray diffraction measurement, when there is no specific peak due to indium oxide or ITO crystal and there is no etching residue, it can be determined that the film is amorphous.
- the resistivity of the film can be obtained by Hall measurement.
- the amorphous film according to the present invention may have a resistivity of 1.8 m ⁇ cm or less, preferably may have a resistivity of 1.0 m ⁇ cm or less, and more preferably has a resistivity of 0.6 m ⁇ cm or less. For example, it has a resistivity of 0.1 to 0.6 m ⁇ cm.
- D50 average particle diameter
- PVA polyvinyl alcohol
- the granulated powder was filled in a mold having a predetermined size so as to have an 8-inch target diameter, and pressed at a surface pressure of 780 kgf / cm 2 to obtain a molded body. Then, the compact was heated to 1540 ° C. at a heating rate of 5 ° C./min, held at 1540 ° C. for 5 hours, and then cooled down to perform furnace cooling. Cylindrical grinding of the outer periphery of the oxide sintered body obtained under the above conditions, surface grinding of the surface side to a thickness of about 5 mm and a diameter of 8 inches, and bonding with indium as a bonding metal on a copper backing plate Thus, a sputtering target was obtained.
- the sputtering target is attached to a sputtering apparatus of model SPF-313H manufactured by Canon Anelva, the argon gas pressure is 0.5 Pa, the distance between the target and the substrate is 80 mm, a non-alkali glass is used as the substrate, and the sputtering power is set in a state where the substrate is not heated.
- the resistivity of the film was 1.2 m ⁇ cm and the etching rate was 15 ⁇ / sec. These results are shown in Table 1. Further, the transmittance at a wavelength of 550 nm was 90%.
- Example 2 to 30 The sintered body composition of Example 1 was changed as shown in Table 1, and the other conditions were the same as in Example 1 except for Examples 2 to 30. In all these cases, the film after film formation was amorphous and transparent, and there was no etching residue. However, manganese oxide (Mn 2 O 3 ) was used as the Mn supply source, aluminum oxide (Al 2 O 3 ) was used as the Al supply source, and germanium oxide (GeO 2 ) was used as the germanium supply source.
- Mn 2 O 3 manganese oxide
- Al 2 O 3 aluminum oxide
- GeO 2 germanium oxide
- the films after film formation were all amorphous, and the film resistivity was nickel, manganese, aluminum, germanium, and various dopant concentrations at the time of simultaneous addition of nickel and manganese. As the total dopant concentration increased, it decreased and then increased. The dopant concentration that gave the lowest resistivity was about 6 at%. And the resistivity of these films
- Example 31 to 60 In Examples 31 to 60, the sintered body composition of Example 1 was changed as shown in Table 2, and the other conditions were the same as in Example 1. Examples 1 to 30 were cases where various dopants were added to indium oxide, while Examples 31 to 60 were examples where various dopants were added to tin-doped indium oxide. Tin oxide (SnO 2 ) was used as the Sn supply source.
- the crystallinity of the film after film formation is all amorphous, and the film resistivity is various in nickel, manganese, aluminum, germanium, and nickel and manganese at the same time.
- the dopant concentration or the total dopant concentration increased, it decreased and then increased.
- the dopant concentration giving the lowest resistivity was about 6 at%.
- the resistivity of the film was further reduced as compared with the case where tin was not added.
- membranes is low enough and is comparable as the resistivity of ITO film
- the etching rate of the film monotonously increased as the amount of each dopant added increased.
- Comparative Examples 1 to 12 In Comparative Examples 1 to 12, the sintered body composition of Example 1 was changed as shown in Table 3, and the other conditions were the same as those of Example 1.
- Comparative Example 11 since the tin concentration was appropriate, the film resistivity was low and good, but since the first additive element was not included, a part of the film after sputter deposition was crystallized. In other words, an etching residue was generated during etching.
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Abstract
Description
この様にITO膜の一部に結晶化した部分が生じると、その部分はエッチング速度が、非晶質の部分より、約2桁程小さいため、その後のエッチングの際に、いわゆる、エッチング残渣として残ってしまい、配線ショート等の問題を引き起こしてしまう。
しかし、水添加でのスパッタによって非晶質の膜を得ようとする方法には、数々の問題点がある。まず、スパッタ膜にパーティクルが発生してしまう場合が多い。パーティクルはスパッタ膜の平坦性や結晶性に悪影響を及ぼす。また、水を添加しなければパーティクルは発生しないことから、パーティクル発生の問題は水添加が原因である。
しかし、一方で、確実に非晶質のスパッタ膜を得るために、添加する水分濃度を高くしてしまうと、その後のアニールで膜が結晶化する際の結晶化温度が、非常に高くなり、得られる膜の抵抗率が、非常に高くなってしまうという問題が生じてしまう。
つまり、スパッタ膜全部を非晶質とするために、水添加でのスパッタによると、常に、チャンバー内の水濃度を把握、制御する必要があるが、それは非常に困難であるとともに、大変な手間と労力を要してしまうのである。
以下に酸化物焼結体の製造方法について説明する。
本発明の酸化物焼結体を製造するためには、まず、原料である酸化インジウム粉末、第一添加元素の酸化物粉末及び必要に応じて酸化スズ粉末を、所定の割合で秤量し、混合する。混合が不充分であると、製造したターゲットに第一添加元素の偏析により高抵抗率領域と低抵抗率領域が存在して、スパッタ成膜時に高抵抗率領域での帯電によるアーキング等の異常放電が起き易くなってしまう。原料として酸化物の形態以外のものを使用しても良いが、取り扱いの観点からは酸化物が好ましい。
昇温速度が4℃/分より小さいと、所定温度になるまでに不必要に時間を要してしまい、昇温速度が6℃/分より大きいと、炉内の温度分布が均一に上昇せずに、むらが生じてしまう。この様にして得られた焼結体の密度は、相対密度で98~100%、例えば約99.9%、バルク抵抗は0.1~3.0mΩcm、例えば約0.13mΩcm程度となる。
以下にスパッタリングターゲットの製造方法について説明する。
上記の様な製造条件によって得られた酸化物焼結体の外周の円筒研削、面側の平面研削をすることによって厚さ4~6mm程度、直径はスパッタ装置に対応したサイズに加工し、銅製のバッキングプレートに、インジウム系合金などをボンディングメタルとして、貼り合わせることでスパッタリングターゲットとすることができる。
本発明の透明導電膜は、本発明のスパッタリングターゲットを用いて、アルゴンガス圧を0.4~0.8Pa、ターゲットと基板間隔を50~110mm、ガラスなどを基板として無加熱で、スパッタパワーを、例えば、ターゲットサイズが8インチの場合は、200~900Wでスパッタ成膜することで得ることができる。スパッタ方式は直流マグネトロンスパッタとするのが好ましい。
以下に膜の特性評価方法について説明する。
上記の様にして得られた透明導電膜の結晶性の判定は、膜のX線回折測定(XRD測定)で結晶性の膜が示すようなピークの有無、シュウ酸による膜のエッチングで結晶性の膜が示すようなエッチング残渣が生じるかどうかから確認することができる。つまり、X線回折測定で酸化インジウムまたはITO結晶に起因する特有のピークがなく、エッチング残渣がない場合にその膜はアモルファスであると判定できる。
原料である酸化インジウム(In2O3)粉末及び酸化ニッケル(NiO)粉末を、原子数比でIn:Ni=98:2となるように秤量し、大気雰囲気中でスーパーミキサーにより、毎分3000回転、3分の混合を行った。
次に、混合粉に水を加えて、固形分50%のスラリーとして、直径1mmのジルコニアビーズで2時間の微粉砕を行い、混合粉の平均粒径(D50)を0.6μm以下とした。その後、PVA(ポリビニルアルコール)をスラリー1kgあたり125ccの割合で混合して、造粒機入口温度220℃、出口温度120℃、ディスク回転数9000rpmの条件で造粒した。
上記条件で得られた酸化物焼結体の外周の円筒研削、面側の平面研削をして、厚さ5mm程度、直径8インチとし、銅製のバッキングプレートに、インジウムをボンディングメタルとして、貼り合わせることでスパッタリングターゲットとした。
また、膜をシュウ酸:純水=5:95の重量比率で混合した液をエッチャントとして、エッチングを行ったが、エッチング残渣は認められなかった。
実施例1の焼結体組成を、各々表1の様に変化させて、その他の条件は、実施例1と同じ条件で行ったものが、実施例2~30である。これら全ての場合について、成膜後の膜は非晶質で透明であり、エッチング残渣はなかった。ただし、Mn供給源は酸化マンガン(Mn2O3)、Al供給源は酸化アルミニウム(Al2O3)、ゲルマニウム供給源は酸化ゲルマニウム(GeO2)をそれぞれ使用した。
一方、膜のエッチングレートは、各種ドーパントの添加量の増加につれて、単調に増加した。
実施例1の焼結体組成を、各々表2の様に変化させて、その他の条件は、実施例1と同じ条件で行ったものが、実施例31~60である。実施例1~30は、酸化インジウムに各種ドーパントを添加した場合であったが、実施例31~60はスズドープ酸化インジウムへ各種ドーパントを添加した場合の実施例である。Sn供給源としては酸化スズ(SnO2)を使用した。
さらに、スズを添加した場合は、添加しない場合と比較して、膜の抵抗率が更に低下した。そして、これらの膜の抵抗率は充分低く、ITO膜の抵抗率にも匹敵するほどの低さであり、透明導電膜として適切なものであった。
一方、膜のエッチングレートは、各種ドーパントの添加量の増加につれて、単調に増加した。
実施例1の焼結体組成を、各々表3の様に変化させて、その他の条件は、実施例1と同じ条件で行ったものが、比較例1~12である。
Claims (4)
- 酸化インジウムを主成分とし、第一添加元素としてニッケル、マンガン、アルミニウムおよびゲルマニウムから選択される1種以上を含み、第一添加元素の含有量の合計が、インジウムと第一添加元素の合計量に対して、2~12原子%であることを特徴とする酸化物焼結体。
- 酸化インジウムを主成分とし、第一添加元素としてニッケル、マンガン、アルミニウムおよびゲルマニウムから選択される1種以上を含み、第二添加元素としてスズを含み、第一添加元素の含有量の合計が、インジウムと第一添加元素とスズとの合計量に対して、2~12原子%であり、スズの含有量が、インジウムとスズとの合計量に対して、2~15原子%であることを特徴とする酸化物焼結体。
- 請求項1又は2に記載の酸化物焼結体をスパッタリングターゲットとして用い、スパッタすることを特徴とする非晶質膜の製造方法。
- 請求項1又は請求項2に記載の酸化物焼結体と同じ組成を有する非晶質膜。
Priority Applications (6)
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EP09816131A EP2327673A4 (en) | 2008-09-25 | 2009-09-18 | OXIDE-BASED SINK TABLE FOR THE MANUFACTURE OF TRANSPARENT CONDUCTIVE FILM |
KR1020117008983A KR101099414B1 (ko) | 2008-09-25 | 2009-09-18 | 투명 도전막 제조용의 산화물 소결체 |
KR1020117021302A KR101214422B1 (ko) | 2008-09-25 | 2009-09-18 | 투명 도전막 제조용의 산화물 소결체 |
JP2010530836A JP4823386B2 (ja) | 2008-09-25 | 2009-09-18 | 透明導電膜製造用の酸化物焼結体 |
US13/063,151 US20110163277A1 (en) | 2008-09-25 | 2009-09-18 | Oxide sintered compact for preparing transparent conductive film |
CN2009801374930A CN102171159A (zh) | 2008-09-25 | 2009-09-18 | 透明导电膜制造用的氧化物烧结体 |
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KR (2) | KR101214422B1 (ja) |
CN (1) | CN102171159A (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011132582A (ja) * | 2009-12-25 | 2011-07-07 | Jx Nippon Mining & Metals Corp | 焼結体スパッタリングターゲット、光記録媒体用薄膜の製造方法及び光記録媒体用薄膜 |
JP2012107336A (ja) * | 2010-05-06 | 2012-06-07 | Toyobo Co Ltd | 透明導電性フィルム及びその製造方法 |
US9768316B2 (en) | 2013-07-16 | 2017-09-19 | Sumitomo Metal Mining Co., Ltd. | Oxide semiconductor thin film and thin film transistor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP7409872B2 (ja) * | 2018-11-13 | 2024-01-09 | 日東電工株式会社 | 光透過性積層体、タッチセンサおよび画像表示装置 |
TWI740216B (zh) * | 2019-09-24 | 2021-09-21 | 光洋應用材料科技股份有限公司 | 銦錫鎳氧化物靶材及其製造方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371510A (ja) | 1989-08-10 | 1991-03-27 | Showa Denko Kk | 透明導電膜 |
JPH0378907A (ja) | 1989-08-21 | 1991-04-04 | Showa Denko Kk | 透明導電膜 |
JPH07161235A (ja) | 1993-12-13 | 1995-06-23 | Matsushita Electric Ind Co Ltd | 透明導電膜およびその製造方法 |
JPH08199343A (ja) | 1995-01-23 | 1996-08-06 | Hitachi Ltd | 透明導電膜 |
JP2003105532A (ja) | 2001-06-26 | 2003-04-09 | Mitsui Mining & Smelting Co Ltd | 高抵抗透明導電膜用スパッタリングターゲット及び高抵抗透明導電膜の製造方法 |
JP2003239063A (ja) * | 2002-02-14 | 2003-08-27 | Sumitomo Metal Mining Co Ltd | 透明導電性薄膜とその製造方法及びその製造に用いるスパッタリングターゲット |
JP3496239B2 (ja) | 1993-08-06 | 2004-02-09 | 東ソー株式会社 | Ito焼結体およびスパッタリングターゲット |
JP3780100B2 (ja) | 1998-05-15 | 2006-05-31 | 株式会社神戸製鋼所 | 加工性に優れた透明導電膜 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61136954A (ja) * | 1984-12-06 | 1986-06-24 | 三井金属鉱業株式会社 | 焼結性に優れた酸化インジウム系焼結体 |
JPS62202415A (ja) * | 1984-12-06 | 1987-09-07 | 三井金属鉱業株式会社 | 酸化インジウム系透明導電膜の製造法 |
JPH0598436A (ja) * | 1991-10-08 | 1993-04-20 | Nikko Kyodo Co Ltd | Itoスパツタリングタ−ゲツト及びその製造方法 |
FR2683219A1 (fr) * | 1991-10-30 | 1993-05-07 | Saint Gobain Vitrage Int | Substrat en verre muni d'une couche mince conductrice. |
JPH08249929A (ja) * | 1995-03-10 | 1996-09-27 | Idemitsu Kosan Co Ltd | 座標データ入力装置の入力パネル用透明電極膜 |
JP3589519B2 (ja) * | 1995-11-30 | 2004-11-17 | 出光興産株式会社 | タッチパネル |
JP2000169220A (ja) * | 1998-12-09 | 2000-06-20 | Jiomatetsuku Kk | 金属酸化物焼結体およびその用途 |
JP2002050231A (ja) * | 2000-08-04 | 2002-02-15 | Geomatec Co Ltd | 透明導電膜およびその製造方法並びにその用途 |
JP2002053952A (ja) * | 2000-08-04 | 2002-02-19 | Tosoh Corp | スパッタリングターゲットおよびその製造方法 |
JP3918721B2 (ja) * | 2002-03-27 | 2007-05-23 | 住友金属鉱山株式会社 | 透明導電性薄膜、その製造方法と製造用焼結体ターゲット、及び有機エレクトロルミネッセンス素子とその製造方法 |
JP3775344B2 (ja) * | 2002-05-27 | 2006-05-17 | 住友金属鉱山株式会社 | 酸化物焼結体 |
JP2006188392A (ja) | 2005-01-06 | 2006-07-20 | Sumitomo Metal Mining Co Ltd | 酸化物焼結体、透明導電性薄膜およびその実装素子 |
JP2008115024A (ja) * | 2006-11-01 | 2008-05-22 | Idemitsu Kosan Co Ltd | 導電性酸化物粉体及び導電性酸化物粉体の製造方法 |
-
2009
- 2009-09-18 KR KR1020117021302A patent/KR101214422B1/ko active IP Right Grant
- 2009-09-18 KR KR1020117008983A patent/KR101099414B1/ko active IP Right Grant
- 2009-09-18 US US13/063,151 patent/US20110163277A1/en not_active Abandoned
- 2009-09-18 WO PCT/JP2009/066394 patent/WO2010035716A1/ja active Application Filing
- 2009-09-18 JP JP2010530836A patent/JP4823386B2/ja active Active
- 2009-09-18 EP EP09816131A patent/EP2327673A4/en not_active Withdrawn
- 2009-09-18 CN CN2009801374930A patent/CN102171159A/zh active Pending
- 2009-09-22 TW TW098131830A patent/TWI387574B/zh active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371510A (ja) | 1989-08-10 | 1991-03-27 | Showa Denko Kk | 透明導電膜 |
JPH0378907A (ja) | 1989-08-21 | 1991-04-04 | Showa Denko Kk | 透明導電膜 |
JP3496239B2 (ja) | 1993-08-06 | 2004-02-09 | 東ソー株式会社 | Ito焼結体およびスパッタリングターゲット |
JPH07161235A (ja) | 1993-12-13 | 1995-06-23 | Matsushita Electric Ind Co Ltd | 透明導電膜およびその製造方法 |
JPH08199343A (ja) | 1995-01-23 | 1996-08-06 | Hitachi Ltd | 透明導電膜 |
JP3780100B2 (ja) | 1998-05-15 | 2006-05-31 | 株式会社神戸製鋼所 | 加工性に優れた透明導電膜 |
JP2003105532A (ja) | 2001-06-26 | 2003-04-09 | Mitsui Mining & Smelting Co Ltd | 高抵抗透明導電膜用スパッタリングターゲット及び高抵抗透明導電膜の製造方法 |
JP2003239063A (ja) * | 2002-02-14 | 2003-08-27 | Sumitomo Metal Mining Co Ltd | 透明導電性薄膜とその製造方法及びその製造に用いるスパッタリングターゲット |
Non-Patent Citations (2)
Title |
---|
See also references of EP2327673A4 * |
THIN SOLID FILMS, vol. 445, 2003, pages 235 - 240 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011132582A (ja) * | 2009-12-25 | 2011-07-07 | Jx Nippon Mining & Metals Corp | 焼結体スパッタリングターゲット、光記録媒体用薄膜の製造方法及び光記録媒体用薄膜 |
JP2012107336A (ja) * | 2010-05-06 | 2012-06-07 | Toyobo Co Ltd | 透明導電性フィルム及びその製造方法 |
US9768316B2 (en) | 2013-07-16 | 2017-09-19 | Sumitomo Metal Mining Co., Ltd. | Oxide semiconductor thin film and thin film transistor |
Also Published As
Publication number | Publication date |
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KR101099414B1 (ko) | 2011-12-27 |
JPWO2010035716A1 (ja) | 2012-02-23 |
TW201020226A (en) | 2010-06-01 |
KR101214422B1 (ko) | 2012-12-21 |
TWI387574B (zh) | 2013-03-01 |
KR20110053388A (ko) | 2011-05-20 |
US20110163277A1 (en) | 2011-07-07 |
EP2327673A1 (en) | 2011-06-01 |
KR20110111541A (ko) | 2011-10-11 |
CN102171159A (zh) | 2011-08-31 |
JP4823386B2 (ja) | 2011-11-24 |
EP2327673A4 (en) | 2012-05-23 |
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