WO2011070860A1 - 磁性材スパッタリングターゲット - Google Patents
磁性材スパッタリングターゲット Download PDFInfo
- Publication number
- WO2011070860A1 WO2011070860A1 PCT/JP2010/068552 JP2010068552W WO2011070860A1 WO 2011070860 A1 WO2011070860 A1 WO 2011070860A1 JP 2010068552 W JP2010068552 W JP 2010068552W WO 2011070860 A1 WO2011070860 A1 WO 2011070860A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- target
- sputtering target
- magnetic material
- less
- wtppm
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/851—Coating a support with a magnetic layer by sputtering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/18—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates by cathode sputtering
- H01F41/183—Sputtering targets therefor
Definitions
- the present invention is a sputtering target containing boron (B) manufactured by a melting / casting method, has few gas component impurities, has little compositional segregation, and has no problems with mechanical properties such as cracks.
- the present invention relates to a target useful for applications such as a head and a magnetoresistive element (MRAM).
- MRAM magnetoresistive element
- a magnetoresistive element As a next-generation high-speed memory element, a magnetoresistive element (MRAM) is being developed, and a magnetic material containing boron (B) is used as a material used for a layer constituting the MRAM.
- MRAM magnetoresistive element
- B magnetic material containing boron
- a composition composed of Co, Fe, Ni and the like and boron, Co—B, Co—Fe—B, or a composition obtained by adding Al, Cu, Mn, Ni or the like to these is known.
- the magnetic layer constituting these MRAMs is produced by sputtering a sputtering target having a composition comprising Co, Fe, Ni and the like and boron.
- Such a magnetic material sputtering target contains B as a main component, particularly when the B composition ratio exceeds 10%, a Co 3 B, Co 2 B, and CoB compound phase having very brittle characteristics is formed. As a result, the ingot was cracked and cracked, making it difficult to obtain a sputtering target.
- a magnetron sputtering apparatus equipped with a DC power source is widely used because of high productivity.
- a substrate serving as a positive electrode and a target serving as a negative electrode are opposed to each other, and an electric field is generated by applying a high voltage between the substrate and the target in an inert gas atmosphere.
- the inert gas is ionized and a plasma composed of electrons and cations is formed.
- a plasma composed of electrons and cations is formed.
- the cations in the plasma collide with the surface of the target (negative electrode)
- atoms constituting the target are knocked out.
- the projected atoms adhere to the opposing substrate surface to form a film.
- the principle that the material constituting the target is formed on the substrate by such a series of operations is used.
- B is added to an alloy mainly composed of Co and dissolved to be deoxygenated, rapidly solidified by pulverization, and further powdered to sinter the powder.
- Patent Document 1 boron is added in an amount of 10% or less to remove oxygen from a metal raw material such as Co, and deoxygenation is aimed at by adding B in the middle of the process, but ultimately a powder sintering method is adopted. Therefore, as shown in the Examples and Comparative Examples of Patent Document 1, it is inferior in terms of oxygen amount and density as compared with the melt casting method, and in the first place, for the production of a target that needs to control the composition of B. Cannot be used.
- the oxygen content obtained by the powder sintering method is 150 wtppm or more. In order to further reduce this, an expensive device must be devised, which is not preferable in actual production.
- Manufacture B-transition metal sputtering target manufactured by melting / casting method improve density, reduce compositional segregation, eliminate generation of cracks and cracks, and remarkably reduce oxygen and other gas components It is an object of the present invention to suppress the deterioration of film formation quality due to gas component mixing and to reduce particles generated during sputtering.
- the present inventors have conducted extensive research and obtained knowledge that a sputtering target can be manufactured by devising a melting / casting method that has been considered difficult in the past. It was.
- the present invention 1) A sputtering target containing B obtained by a melting / casting method, wherein the B content is 10 at% or more and 50 at% or less, and the balance is one or more selected from the elements of Co, Fe and Ni
- the present invention provides a magnetic material sputtering target characterized in that the oxygen content in the target is 100 wtppm or less and there are no cracks or cracks.
- the above target can further provide a target having a composition in which 0.5 at% or more and 10 at% or less of one or more elements selected from Al, Cu, Mn, Nb, Ta, and Zr are added.
- the above target has a deviation of Am from the composition A of the component of the entire target (Am-A) /
- the magnetic material sputtering target according to any one of 1) or 2) above, wherein A is 0.01 or less and excellent in the uniformity of the component composition of the target.
- an ingot is prepared by melting and casting a raw material consisting of at least one element selected from the elements of Co, Fe, and Ni with a B content of 10 at% or more and 50 at% or less.
- a method of manufacturing a magnetic material sputtering target is provided, wherein a target is obtained by cutting and machining the substrate.
- the rapidly cooled ingot can be further heat-treated in the range of 800 to 1150 ° C.
- the present invention provides this manufacturing method.
- the present invention provides the method for producing a magnetic material sputtering target according to any one of 4) to 7) above, wherein the oxygen content in the target is 100 wtppm or less.
- the present invention includes any one of 4) to 8) above, which contains at least one element selected from Al, Cu, Mn, Nb, Ta, and Zr at 0.5 at% or more and 10 at% or less.
- the manufacturing method of the magnetic material sputtering target of one term is provided.
- the composition of the main component element, particularly boron (B), in an arbitrary 1 mm square of the target is Am
- the sputtering target of the present invention is manufactured from a melt-cast ingot, and can obtain a high-density target. Further, since it is a melted product, it has a higher oxygen content than a conventional powder sintered target. An excellent effect that can be significantly reduced can be obtained. Similarly, it is possible to reduce other gas components, which has an effect of suppressing tissue non-uniformity and particle generation due to gas components such as oxygen.
- the component constituting the sputtering target of the present invention is one or more selected from elements of B content of 10 at% or more and 50 at% or less and the balance of Co, Fe, or Ni. As described above, 0.5 at% or more and 10 at% or less of one or more elements selected from Al, Cu, Mn, Nb, Ta, and Zr can be further added. These are elements added as necessary in order to improve the characteristics as a magnetoresistive element.
- the B content is 10 at% or more is as follows. If it is less than 10 at%, the production is relatively easy and compositional segregation is small and cracks and cracks are not observed, but desired characteristics cannot be obtained for a magnetic head and MRAM. Normally, a B content of 15 at% or more is desirable in order to take advantage of the characteristics for magnetic heads and MRAMs. However, the effects of no cracks and cracks and no composition segregation have been difficult to realize in the past. In addition, since it is exhibited at a B content of 10 at% or more, at least 10 at% is set as the lower limit.
- the upper limit of the B content is 50 at%, if the B content exceeds this, the melting point becomes high and the raw material cannot be dissolved. Therefore, 50 at% is set as the upper limit value. Further, in the magnetic head and MRAM, the B content is usually 35 at% or less, and an amount exceeding this is rarely required.
- melt casting to produce an ingot which is further cut and machined to make a target.
- These machining processes naturally include adjustment of the target shape and polishing of the target surface so that the function as a target can be sufficiently exhibited in the sputtering apparatus.
- the above components have different blending ratios depending on the alloy components, but any of them can maintain the characteristics as a magnetic head and an MRAM. Further, as a use other than the magnetic head and the MRAM, the characteristics can be maintained for the use as a general magnetic film corresponding to the above composition range.
- the melting conditions such as the melting temperature naturally vary depending on the alloy type and the blending ratio, but dissolve in the range of approximately 1100 to 1500 ° C.
- dissolution pours out into a casting_mold
- the magnetic material sputtering target can be manufactured by rapidly cooling the mold at 30 to 60 ° C./min to produce an ingot. This is an effective method for suppressing component segregation. In general, slow cooling in a furnace is recommended in order to suppress cracking of the ingot, but this is not preferable because segregation of the composition occurs. Therefore, the rapid cooling described above is a preferable method for the present invention.
- the composition of the main component element, particularly boron (B), in an arbitrary 1 mm square of the target is Am
- the deviation of Am from the composition A of the component of the entire target (Am ⁇ A) / A is 0.
- a target that is .01 or less can be obtained.
- oxygen concentration can be 100 wtppm or less. Moreover, it is possible to make this 50 wtppm or less, and even 10 wtppm or less. Moreover, about nitrogen of the gas component used as an impurity, it can be 10 wtppm or less, and about 200 wtppm about carbon.
- the rapidly cooled ingot can be heat-treated in the range of 800 to 1100 ° C. when B is 30 at% or less and in the range of 850 to 1150 ° C. when B exceeds 30 at%. Since this heat treatment temperature can naturally vary depending on the alloy type and the mixing ratio, it can be appropriately selected within the above temperature range.
- This heat treatment has the effect of removing the strain of the “as-cast” structure and making it uniform. Moreover, it has the effect which can suppress the crack of a target by this heat processing. Prompt heat treatment is desirable for crack suppression. The heat treatment may be performed for 2 hours or more although it depends on the size of the ingot to be treated, and even if it is long, no problem will occur.
- the casting is usually cooled at 30 to 60 ° C./min. If this is carried out to near room temperature, the ingot may break due to the strain due to the temperature difference between the surface and the inside of the ingot. In order to prevent this, it is effective to implement a heat treatment while cooling the ingot.
- Example 1 Co, Fe, and B were used as raw materials, and these were blended into Co: 60 at%, Fe: 20 at%, and B 20 at%. Next, this was put into a crucible and melted by heating at 1180 ° C. This was cast into an ingot, rapidly cooled at 50 ° C./minute, heat-treated at 1000 ° C. for 5 hours, and then cooled at 50 ° C./minute. Next, this was cut into a shape having a diameter of 164.0 mm and a thickness of 4.0 mm with a lathe to obtain a target. Table 1 shows analysis values of impurities of this target.
- Al was less than 10 wtppm
- Cu was 10 wtppm
- Ni was 90 wtppm
- Si was 44 wtppm
- C was 150 wtppm
- O was less than 10 wtppm
- N was less than 10 wtppm.
- the density of the target of Example 1 was 7.83 g / cm 3 .
- the composition of the main component element, particularly boron (B), in any 1 mm square of the target is Am
- the deviation of Am from the composition A of the component in the entire target (Am -A) / A is the boron composition of the target of Example 1 within the range of 19.8 at% to 20.2 at% with respect to the total composition of 20 at%.
- A) 0.01
- (Am ⁇ A) / A was 0.01 or less in any point of the target.
- Al was less than 10 wtppm
- Cu was 20 wtppm
- Ni was 110 wtppm
- Si was 77 wtppm
- C was 160 wtppm
- O was 180 wtppm
- N was less than 10 wtppm.
- the density of the target was 7.73 g / cm 3 .
- the deviation of Am from the composition A of the component of the entire target when the composition of the main component element, particularly boron (B), in any 1 mm square of the target is Am. (Am-A) / A was within 0.01 for the target of Comparative Example 1.
- Example 1 shows that most impurities are reduced as compared with Comparative Example 1. In particular, the reduction of oxygen is significant.
- the comparative example has a problem that oxygen is 180 wtppm despite the use of atomized powder, and the gas component increases as a target.
- Example 1 is higher than Comparative Example 1, but this is a natural consequence.
- Low density means the presence of vacancies, which promotes arcing and particles. Therefore, the improvement in density has a function of suppressing generation of arcing and generation of particles. In this sense, Example 1 is effective.
- the results were that the saturation magnetization: 4 ⁇ ls (G) and the maximum magnetic permeability: ⁇ max, which are magnetic characteristics, were almost equivalent.
- Table 2 shows a comparison of characteristics of Example 1 and Comparative Example 1 other than the analyzed values of impurities.
- Co, Fe, and B were used as raw materials, and these were prepared at Co: 60 at%, Fe: 20 at%, and B: 20 at%. Next, this was put into a crucible and melted by heating at 1180 ° C. This was cast into an ingot, cooled to room temperature at 20 ° C./min, and no heat treatment was performed. At this time, as a result of setting the cooling rate from 1180 ° C. to 20 ° C./min, the index (Am ⁇ A) / A indicating the composition variation in the target was as large as 0.03.
- Co, Fe, and B were used as raw materials, and these were prepared at Co: 60 at%, Fe: 20 at%, and B: 20 at%. Next, this was put into a crucible and melted by heating at 1180 ° C. This was cast into an ingot. At this time, the cooling rate from 1180 ° C. was set to 40 ° C./min to rapidly cool to room temperature, and no heat treatment was performed. The ingot taken out was cracked.
- Example 2 to Example 7 Co, Fe: 20 at%, B: 20 at% as basic components, Al: 0.5 at% in Example 2, Cu: 1 at% in Example 3, Mn: 2 at% in Example 4 In Example 5, Nb: 5 at%, in Example 6, Ta: 7 at%, and in Example 7, Zr: 10 at% were added, respectively, to adjust the components to the remaining Co. Next, these were each put in a crucible and dissolved by heating at 1180 ° C. Further, these were cast into ingots, rapidly cooled at 30 to 60 ° C./minute, subjected to heat treatment at 900 to 1100 ° C. for 2 to 20 hours, and then cooled at 30 to 60 ° C./minute. . Next, it was cut into a shape having a diameter of 164.0 mm and a thickness of 4.0 mm with a lathe to obtain a target. Table 1 shows the analysis results of target impurities in this case.
- Example 2 (Impurity analysis result of Example 2) As shown in Table 1, in Example 2, Cu: less than 10 wtppm, Ni: 86 wtppm, Si: 40 wtppm, C: 160 wtppm, O: 20 wtppm, N: less than 10 wtppm. In Example 2, since Al is added, it is not counted as an impurity. As shown in Table 1 above, it can be seen that Example 2 has almost all impurities reduced compared to Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 3 (Impurity analysis result of Example 3) As shown in Table 1, in Example 3, Al: less than 10 wtppm, Ni: 92 wtppm, Si: 38 wtppm, C: 150 wtppm, O: 10 wtppm, N: less than 10 wtppm. In Example 3, since Cu is added, it is not counted as an impurity. As shown in Table 1 above, it can be seen that Example 3 shows that most impurities are reduced as compared with Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 4 shows that most impurities are reduced as compared with Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 5 (Impurity analysis result of Example 5) As shown in Table 1, in Example 5, Al: less than 10 wtppm, Cu: 15 wtppm, Ni: less than 82 wtppm, Si: 48 wtppm, C: 140 wtppm, O: less than 10 wtppm, and N: less than 10 wtppm. As shown in Table 1 above, it can be seen that Example 5 shows that most impurities are reduced as compared with Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 6 (Results of impurity analysis of Example 6) As shown in Table 1, in Example 6, Al: less than 10 wtppm, Cu: 24 wtppm, Ni: less than 77 wtppm, Si: 50 wtppm, C: 150 wtppm, O: 10 wtppm, N: less than 10 wtppm. As shown in Table 1 above, it can be seen that almost all impurities were reduced in Example 6 compared to Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 7 (Impurity analysis results of Example 7) As shown in Table 1, in Example 7, Al: less than 10 wtppm, Cu: 23 wtppm, Ni: less than 72 wtppm, Si: 46 wtppm, C: 160 wtppm, O: 30 wtppm, N: less than 10 wtppm. As shown in Table 1 above, it can be seen that in Example 7, most impurities were reduced as compared with Comparative Example 1. In particular, it can be confirmed that the reduction of oxygen is remarkable.
- Example 2 to Example 7 were almost the same as those of Example 1. It has been found that the addition of one or more elements selected from Al, Cu, Mn, Nb, Ta, and Zr in the range of 0.5 at% or more and 10 at% or less does not affect the impurities. Moreover, about the above, even when it added together, the same result was brought.
- Example 2 Addition of one or more elements selected from Al, Cu, Mn, Nb, Ta, and Zr shown in Example 7 in the range of 0.5 at% or more and 10 at% or less is performed by adding density and magnetic properties (4 ⁇ ls ( G) and ⁇ max) were slightly changed, but were not significantly changed compared to Example 1.
- density and magnetic properties (4 ⁇ ls ( G) and ⁇ max) were slightly changed, but were not significantly changed compared to Example 1.
- the composition of boron (B) is Am
- the deviation (Am-A) / A of the component from the composition A of the target as a whole is 0.01 or less, and a good target is obtained. I was able to.
- the sputtering target of the present invention is manufactured from a melt-cast ingot, and it is possible to obtain a high-density target. Furthermore, since it is a melted product, the oxygen content is lower than that of a conventional powder sintered target. An excellent effect that can be significantly reduced can be obtained. Similarly, other gas components can be reduced, which has the effect of suppressing the generation of non-uniform tissue and particles caused by gas components such as oxygen. It is useful as a sputtering target for a head or other magnetic film.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Vapour Deposition (AREA)
- Magnetic Heads (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
通常、粉末の焼結法で得られる酸素含有量は、150wtppm以上となる。これをさらに低減させようとするには、経費のかかる工夫をしなければならず、実際の生産では好ましいことではない。
1)溶解・鋳造法より得たBを含有するスパッタリングターゲットであって、Bの含有量が10at%以上、50at%以下であり、残余がCo、Fe、Niの元素から選択した一種以上であり、ターゲット中の酸素含有量が100wtppm以下であって、亀裂や割れがないことを特徴とする磁性材スパッタリングターゲット、を提供する。
9)本発明は、Al、Cu、Mn、Nb、Ta、Zrから選択した一種以上の元素を0.5at%以上、10at%以下含有することを特徴とする上記4)~8)のいずれか一項に記載の磁性材スパッタリングターゲットの製造方法を提供する。
10)ほん発明は、ターゲットの任意の1mm角内における主成分元素、特にホウ素(B)の組成をAmとしたとき、ターゲット全体の当該成分の組成AからのAmのずれ(Am-A)/Aが0.01以下であることを特徴とする上記4)~9)のいずれか一項に記載の磁性材スパッタリングターゲットの製造方法を提供する。
また、溶解温度等の溶解条件は、合金種と配合割合で当然変わってくるが、およそ1100~1500°Cの範囲で溶解する。
これによって、ターゲットの任意の1mm角内における主成分元素、特にホウ素(B)の組成をAmとしたとき、ターゲット全体の当該成分の組成AからのAmのずれ(Am-A)/Aが0.01以下であるターゲットを得ることができる。
また、不純物となるガス成分の窒素については、10wtppm以下に、炭素については200wtppm以下とすることができる。
この熱処理により「鋳造まま」の組織の歪を除去し、均一化する効果を有する。また、この熱処理によりターゲットの割れを抑制できる効果を有する。速やかな熱処理は、割れ抑制に望ましい。熱処理は、処理されるインゴットの大きさなどにもよるが2時間以上行えばよく、長くても問題が起きることはないが、コストの面から20時間を越えて処理する必要はない。
上記の通り、通常鋳造物を30~60°C/分で冷却するが、これを室温付近まで実施すると、インゴットの表面と内部との温度差による歪によってインゴットが割れてしまうことがある。これを防止する為に、インゴットを冷却途中で熱処理を実施する策が有効である。
原料としてCo、Fe、Bを使用し、これをCo:60at%、Fe:20at%、B20at%に調合した。次に、これをルツボに入れて1180°Cに加熱溶解した。これを鋳造してインゴットとし、50°C/分で急冷し、その途中1000°Cで5時間熱処理を行った後、50°C/分で冷却した。
次に、これを旋盤で直径164.0mm、厚さ4.0mmの形状へ切削加工してターゲットとした。このターゲットの不純物の分析値を表1に示す。
上記について、Co:60at%、Fe:20at%、B:20at%の実施例を示したが、Bの含有量が10at%以上、50at%以下であり、残余がCo、Fe、Niの元素から選択した一種以上である場合は、いずれも同様の結果が得られた。
実施例1のターゲットの密度は、7.83g/cm3であった。また、磁気特性である飽和磁化:4πls(G)は15170で、最大透磁率:μmaxは25.7であった。
原料をアトマイズ加工して平均粒径150μmのCo:60at%、Fe:20at%、B:20at%の合金粉を得た。これを1050°Cで焼結し、これを旋盤で直径165.1mm、厚さ6.35mmの形状へ切削加工してターゲットとした。このターゲットの不純物の分析値を、同様に表1に示す。
また、ターゲットの密度は、7.73g/cm3であった。また、また、磁気特性である飽和磁化:4πls(G)は14780で、最大透磁率:μmaxは24.7であった。
上記表1に示すように、実施例1は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しい。これに対して比較例は、アトマイズ粉を使用しているにもかかわらず、酸素が180wtppmになり、ターゲットとしてガス成分が多くなるという問題を有している。
したがって、密度の向上はアーキングの発生やパーティクルの発生を抑制する機能を有する。この意味でも実施例1は有効である。
磁気特性である飽和磁化:4πls(G)及び最大透磁率:μmaxはほぼ同等という結果が得られた。 実施例1と比較例1の不純物の分析値以外の特性の比較を表2に示す。
原料としてCo、Fe、Bを使用し、これをCo:60at%、Fe:20at%、B:20at%に調合した。次に、これをルツボに入れて1180°Cに加熱溶解した。これを鋳造してインゴットとし、20°C/分で室温まで冷却し、熱処理を行わなかった。このとき、1180°Cからの冷却速度を20°C/分とした結果、ターゲット内の組成バラツキを示す指標(Am-A)/Aは0.03と大きかった。
原料としてCo、Fe、Bを使用し、これをCo:60at%、Fe:20at%、B:20at%に調合した。次に、これをルツボに入れて1180°Cに加熱溶解した。これを鋳造してインゴットとした。このとき、1180°Cからの冷却速度を40°C/分として室温まで急冷却し、熱処理を実施しなかった。取り出したインゴットに亀裂が入っていた。
次に、Co、Fe:20at%、B:20at%を基本成分とし、さらに実施例2でAl:0.5at%、実施例3でCu:1at%、実施例4でMn:2at%、実施例5でNb:5at%、実施例6でTa:7at%、実施例7でZr:10at%を、それぞれ添加し、残余がCoである成分に調整した。
次に、これらをそれぞれルツボに入れて1180°Cに加熱溶解した。そして、さらにこれらを鋳造し、インゴットとし、30~60°C/分で急冷し、その途中900~1100°Cで2~20時間熱処理を行った後、30~60°C/分で冷却した。
次に、旋盤で直径164.0mm、厚さ4.0mmの形状へ切削加工してターゲットとした。この場合のターゲットの不純物の分析結果を表1に示す。
表1に示すように、実施例2では、Cu:10wtppm未満、Ni:86wtppm、Si:40wtppm、C:160wtppm、O:20wtppm、N:10wtppm未満であった。なお、実施例2では、Alを添加しているので、不純物としてはカウントしない。
上記表1に示すように、実施例2は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
表1に示すように、実施例3では、Al:10wtppm未満、Ni:92wtppm、Si:38wtppm、C:150wtppm、O:10wtppm、N:10wtppm未満であった。なお、実施例3では、Cuを添加しているので、不純物としてはカウントしない。
上記表1に示すように、実施例3は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
表1に示すように、実施例4では、Al:10wtppm未満、Cu:10wtppm未満、Ni:80wtppm未満、Si:45wtppm、C:160wtppm、O:20wtppm、N:10wtppm未満であった。
上記表1に示すように、実施例4は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
表1に示すように、実施例5では、Al:10wtppm未満、Cu:15wtppm、Ni:82wtppm未満、Si:48wtppm、C:140wtppm、O:10wtppm未満、N:10wtppm未満であった。
上記表1に示すように、実施例5は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
表1に示すように、実施例6では、Al:10wtppm未満、Cu:24wtppm、Ni:77wtppm未満、Si:50wtppm、C:150wtppm、O:10wtppm、N:10wtppm未満であった。
上記表1に示すように、実施例6は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
表1に示すように、実施例7では、Al:10wtppm未満、Cu:23wtppm、Ni:72wtppm未満、Si:46wtppm、C:160wtppm、O:30wtppm、N:10wtppm未満であった。
上記表1に示すように、実施例7は比較例1に較べて、殆どの不純物が低減しているのが分かる。特に、酸素の低減が著しいのが確認できる。
同様に他のガス成分の低減化も可能であり、酸素等のガス成分に起因する組織の不均一性及びパーティクルの発生を抑制することができるという効果を有し、特にMRAM用途、さらには磁気ヘッド、あるいはそれ以外の磁性膜用のスパッタリングターゲットとして有用である。
Claims (10)
- 溶解・鋳造法より得たBを含有するスパッタリングターゲットであって、Bの含有量が10at%以上、50at%以下であり、残余がCo、Fe、Niの元素から選択した一種以上からなり、ターゲット中の酸素含有量が100wtppm以下であり、亀裂や割れがないことを特徴とする磁性材スパッタリングターゲット。
- Al、Cu、Mn、Nb、Ta、Zrから選択した一種以上の元素を0.5at%以上、10at%以下含有することを特徴とする請求項1記載の磁性材スパッタリングターゲット。
- ターゲットの任意の1mm角内における主成分元素、特にホウ素(B)の組成をAmとしたとき、ターゲット全体の当該成分の組成AからのAmのずれ(Am-A)/Aが0.01以下であることを特徴とする請求項1又は2記載の磁性材スパッタリングターゲット。
- Bの含有量が10at%以上、50at%以下であり、残余がCo、Fe、Niの元素から選択した一種以上からなる原料を溶解・鋳造してインゴットを作製し、これを切断及び機械加工してターゲットとすることを特徴とする磁性材スパッタリングターゲットの製造方法。
- 溶解後、30~60°C/分で急冷してインゴットを作製することを特徴とする請求項4記載の磁性材スパッタリングターゲットの製造方法。
- 急冷したインゴットを、さらにBが30at%以下の場合は800~1100°Cの範囲、Bが30at%を超える場合は850~1150°Cの範囲で熱処理することを特徴とする請求項5記載の磁性材スパッタリングターゲットの製造方法。
- 熱処理後、切断及び機械加工してターゲットとすることを特徴とする請求項6記載の磁性材スパッタリングターゲットの製造方法。
- ターゲット中の酸素含有量が100wtppm以下であることを特徴とする請求項4~7のいずれか一項に記載の磁性材スパッタリングターゲットの製造方法。
- Al、Cu、Mn、Nb、Ta、Zrから選択した一種以上の元素を0.5at%以上、10at%以下含有することを特徴とする請求項4~8のいずれか一項に記載の磁性材スパッタリングターゲットの製造方法。
- ターゲットの任意の1mm角内における主成分元素、特にホウ素(B)の組成をAmとしたとき、ターゲット全体の当該成分の組成AからのAmのずれ(Am-A)/Aが0.01以下であることを特徴とする請求項4~9のいずれか一項に記載の磁性材スパッタリングターゲットの製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10835782.3A EP2511397B1 (en) | 2009-12-11 | 2010-10-21 | Magnetic material sputtering target |
CN201080056188.1A CN102652184B (zh) | 2009-12-11 | 2010-10-21 | 磁性材料溅射靶 |
JP2011518968A JP4837805B2 (ja) | 2009-12-11 | 2010-10-21 | 磁性材スパッタリングターゲット |
US13/513,387 US9269389B2 (en) | 2009-12-11 | 2010-10-21 | Sputtering target of magnetic material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009281540 | 2009-12-11 | ||
JP2009-281540 | 2009-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011070860A1 true WO2011070860A1 (ja) | 2011-06-16 |
Family
ID=44145413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/068552 WO2011070860A1 (ja) | 2009-12-11 | 2010-10-21 | 磁性材スパッタリングターゲット |
Country Status (7)
Country | Link |
---|---|
US (1) | US9269389B2 (ja) |
EP (1) | EP2511397B1 (ja) |
JP (1) | JP4837805B2 (ja) |
CN (1) | CN102652184B (ja) |
MY (1) | MY160809A (ja) |
TW (1) | TWI480385B (ja) |
WO (1) | WO2011070860A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5567227B1 (ja) * | 2012-09-21 | 2014-08-06 | Jx日鉱日石金属株式会社 | Fe−Pt系磁性材焼結体 |
JP5689543B2 (ja) * | 2012-08-31 | 2015-03-25 | Jx日鉱日石金属株式会社 | Fe系磁性材焼結体 |
WO2015080009A1 (ja) | 2013-11-28 | 2015-06-04 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
JP2015129332A (ja) * | 2014-01-08 | 2015-07-16 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
JP2015129331A (ja) * | 2014-01-08 | 2015-07-16 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
WO2017047753A1 (ja) * | 2015-09-18 | 2017-03-23 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材 |
JP2018526525A (ja) * | 2015-05-14 | 2018-09-13 | マテリオン コーポレイション | スパッタリング標的 |
KR20190136124A (ko) | 2015-03-04 | 2019-12-09 | 제이엑스금속주식회사 | 자성재 스퍼터링 타깃 및 그 제조 방법 |
WO2020166380A1 (ja) * | 2019-02-13 | 2020-08-20 | 三井金属鉱業株式会社 | スパッタリングターゲット材 |
JP2020132995A (ja) * | 2019-02-26 | 2020-08-31 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材に適した合金 |
US11377726B2 (en) | 2015-09-18 | 2022-07-05 | Sanyo Special Steel Co., Ltd. | Sputtering target material |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9181617B2 (en) | 2010-07-20 | 2015-11-10 | Jx Nippon Mining & Metals Corporation | Sputtering target of ferromagnetic material with low generation of particles |
SG177237A1 (en) | 2010-07-20 | 2012-03-29 | Jx Nippon Mining & Metals Corp | Sputtering target of ferromagnetic material with low generation of particles |
MY156386A (en) | 2010-08-31 | 2016-02-15 | Jx Nippon Mining & Metals Corp | Fe-pt-based ferromagnetic material sputtering target |
CN103262166B (zh) | 2010-12-21 | 2016-10-26 | 吉坤日矿日石金属株式会社 | 磁记录膜用溅射靶及其制造方法 |
US20140083847A1 (en) * | 2011-09-26 | 2014-03-27 | Jx Nippon Mining & Metals Corporation | Fe-Pt-C Based Sputtering Target |
JP5654121B2 (ja) | 2012-02-23 | 2015-01-14 | Jx日鉱日石金属株式会社 | クロム酸化物を含有する強磁性材スパッタリングターゲット |
MY174585A (en) | 2012-03-09 | 2020-04-28 | Jx Nippon Mining & Metals Corp | Sputtering target for magnetic recording medium, and process for producing same |
MY167825A (en) | 2012-06-18 | 2018-09-26 | Jx Nippon Mining & Metals Corp | Sputtering target for magnetic recording film |
MY166492A (en) | 2012-07-20 | 2018-06-27 | Jx Nippon Mining & Metals Corp | Sputtering target for forming magnetic recording film and process for producing same |
CN103489557B (zh) * | 2013-09-22 | 2016-06-15 | 清华大学 | 一种室温透明铁磁半导体材料及其制备方法 |
US10600440B2 (en) | 2014-09-22 | 2020-03-24 | Jx Nippon Mining & Metals Corporation | Sputtering target for forming magnetic recording film and method for producing same |
CN107075666A (zh) * | 2014-09-30 | 2017-08-18 | 捷客斯金属株式会社 | 溅射靶用母合金和溅射靶的制造方法 |
US9745792B2 (en) | 2015-03-20 | 2017-08-29 | Cardinal Cg Company | Nickel-aluminum blocker film multiple cavity controlled transmission coating |
US9469566B2 (en) | 2015-03-20 | 2016-10-18 | Cardinal Cg Company | Nickel-aluminum blocker film low-emissivity coatings |
US9752377B2 (en) | 2015-03-20 | 2017-09-05 | Cardinal Cg Company | Nickel-aluminum blocker film controlled transmission coating |
SG11201903240PA (en) * | 2016-12-28 | 2019-05-30 | Jx Nippon Mining & Metals Corp | Magnetic material sputtering target and method for manufacturing same |
US11028012B2 (en) | 2018-10-31 | 2021-06-08 | Cardinal Cg Company | Low solar heat gain coatings, laminated glass assemblies, and methods of producing same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001107226A (ja) | 1999-10-01 | 2001-04-17 | Hitachi Metals Ltd | Co系ターゲットおよびその製造方法 |
JP2001181832A (ja) * | 1999-12-24 | 2001-07-03 | Mitsui Mining & Smelting Co Ltd | スパッタリングターゲットの製造方法 |
JP2002226970A (ja) * | 2000-12-01 | 2002-08-14 | Hitachi Metals Ltd | Co系ターゲットおよびその製造方法 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5538565A (en) | 1985-08-13 | 1996-07-23 | Seiko Epson Corporation | Rare earth cast alloy permanent magnets and methods of preparation |
EP0535314A1 (en) * | 1991-08-30 | 1993-04-07 | Mitsubishi Materials Corporation | Platinum-cobalt alloy sputtering target and method for manufacturing same |
US6398880B1 (en) | 1996-11-29 | 2002-06-04 | Heraeus, Inc. | Magnetic data-storage targets and methods for preparation |
JP2000282229A (ja) | 1999-03-29 | 2000-10-10 | Hitachi Metals Ltd | CoPt系スパッタリングターゲットおよびその製造方法ならびにこれを用いた磁気記録膜およびCoPt系磁気記録媒体 |
US6599377B2 (en) | 1999-10-01 | 2003-07-29 | Heraeus, Inc. | Wrought processing of brittle target alloy for sputtering applications |
JP2001236643A (ja) | 2000-02-23 | 2001-08-31 | Fuji Electric Co Ltd | 磁気記録媒体製造用スパッタリングターゲット、それを用いた磁気記録媒体の製造方法および磁気記録媒体 |
US20020106297A1 (en) * | 2000-12-01 | 2002-08-08 | Hitachi Metals, Ltd. | Co-base target and method of producing the same |
US7141208B2 (en) * | 2003-04-30 | 2006-11-28 | Hitachi Metals, Ltd. | Fe-Co-B alloy target and its production method, and soft magnetic film produced by using such target, and magnetic recording medium and TMR device |
CN1926260B (zh) | 2004-03-01 | 2010-10-06 | 日矿金属株式会社 | 表面缺陷少的溅射靶及其表面加工方法 |
JP3964453B2 (ja) * | 2004-03-26 | 2007-08-22 | 日鉱金属株式会社 | Co−Cr−Pt−B系合金スパッタリングターゲット |
US7381282B2 (en) | 2004-04-07 | 2008-06-03 | Hitachi Metals, Ltd. | Co alloy target and its production method, soft magnetic film for perpendicular magnetic recording and perpendicular magnetic recording medium |
WO2005120176A2 (en) | 2004-06-07 | 2005-12-22 | Showa Denko K.K. | Magnetic recording medium, method for production thereof and magnetic recording and reproducing device using the medium |
US20070209547A1 (en) | 2004-08-10 | 2007-09-13 | Nippon Mining & Metals Co., Ltd. | Barrier Film For Flexible Copper Substrate And Sputtering Target For Forming Barrier Film |
WO2007080781A1 (ja) | 2006-01-13 | 2007-07-19 | Nippon Mining & Metals Co., Ltd. | 非磁性材粒子分散型強磁性材スパッタリングターゲット |
US20100270146A1 (en) | 2006-03-31 | 2010-10-28 | Mitsubishi Materials Corporation | Method for manufacturing co-base sintered alloy sputtering target for formation of magnetic recording film which is less likely to generate partricles, and co-base sintered alloy sputtering target for formation of magnetic recording film |
US20080105542A1 (en) * | 2006-11-08 | 2008-05-08 | Purdy Clifford C | System and method of manufacturing sputtering targets |
JP2008121071A (ja) * | 2006-11-13 | 2008-05-29 | Sanyo Special Steel Co Ltd | 軟磁性FeCo系ターゲット材 |
JP5155565B2 (ja) | 2007-01-04 | 2013-03-06 | 三井金属鉱業株式会社 | CoCrPt系スパッタリングターゲットおよびその製造方法 |
CN101230425A (zh) * | 2007-01-19 | 2008-07-30 | 贺利氏有限公司 | 低氧含量、无裂纹霍伊斯勒和类霍伊斯勒合金以及沉积源及其制造方法 |
US20080173543A1 (en) | 2007-01-19 | 2008-07-24 | Heraeus Inc. | Low oxygen content, crack-free heusler and heusler-like alloys & deposition sources & methods of making same |
US7754027B2 (en) | 2007-08-27 | 2010-07-13 | China Steel Corporation | Method for manufacturing a sputtering target |
MY145087A (en) | 2008-03-28 | 2011-12-30 | Jx Nippon Mining & Metals Corp | Sputtering target of nonmagnetic-particle-dispersed ferromagnetic material |
CN102066025A (zh) | 2008-08-28 | 2011-05-18 | Jx日矿日石金属株式会社 | 包含贵金属粉末和氧化物粉末的混合粉末的制造方法及包含贵金属粉末和氧化物粉末的混合粉末 |
US9034154B2 (en) | 2009-03-03 | 2015-05-19 | Jx Nippon Mining & Metals Corporation | Sputtering target and process for producing same |
JP4673448B2 (ja) | 2009-03-27 | 2011-04-20 | Jx日鉱日石金属株式会社 | 非磁性材粒子分散型強磁性材スパッタリングターゲット |
MY148731A (en) | 2009-08-06 | 2013-05-31 | Jx Nippon Mining & Metals Corp | Inorganic-particle-dispersed sputtering target |
SG177237A1 (en) | 2010-07-20 | 2012-03-29 | Jx Nippon Mining & Metals Corp | Sputtering target of ferromagnetic material with low generation of particles |
SG189257A1 (en) | 2010-12-17 | 2013-05-31 | Jx Nippon Mining & Metals Corp | Sputtering target for magnetic recording film and method for producing same |
WO2013001943A1 (ja) | 2011-06-30 | 2013-01-03 | Jx日鉱日石金属株式会社 | Co-Cr-Pt-B系合金スパッタリングターゲット及びその製造方法 |
-
2010
- 2010-10-21 EP EP10835782.3A patent/EP2511397B1/en active Active
- 2010-10-21 US US13/513,387 patent/US9269389B2/en active Active
- 2010-10-21 JP JP2011518968A patent/JP4837805B2/ja active Active
- 2010-10-21 MY MYPI2012002021A patent/MY160809A/en unknown
- 2010-10-21 CN CN201080056188.1A patent/CN102652184B/zh active Active
- 2010-10-21 WO PCT/JP2010/068552 patent/WO2011070860A1/ja active Application Filing
- 2010-11-01 TW TW099137403A patent/TWI480385B/zh active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001107226A (ja) | 1999-10-01 | 2001-04-17 | Hitachi Metals Ltd | Co系ターゲットおよびその製造方法 |
JP2001181832A (ja) * | 1999-12-24 | 2001-07-03 | Mitsui Mining & Smelting Co Ltd | スパッタリングターゲットの製造方法 |
JP2002226970A (ja) * | 2000-12-01 | 2002-08-14 | Hitachi Metals Ltd | Co系ターゲットおよびその製造方法 |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5689543B2 (ja) * | 2012-08-31 | 2015-03-25 | Jx日鉱日石金属株式会社 | Fe系磁性材焼結体 |
JP5567227B1 (ja) * | 2012-09-21 | 2014-08-06 | Jx日鉱日石金属株式会社 | Fe−Pt系磁性材焼結体 |
KR20180088491A (ko) | 2013-11-28 | 2018-08-03 | 제이엑스금속주식회사 | 자성재 스퍼터링 타깃 및 그 제조 방법 |
KR20160075723A (ko) | 2013-11-28 | 2016-06-29 | 제이엑스금속주식회사 | 자성재 스퍼터링 타깃 및 그 제조 방법 |
JP6037415B2 (ja) * | 2013-11-28 | 2016-12-07 | Jx金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
JPWO2015080009A1 (ja) * | 2013-11-28 | 2017-03-16 | Jx金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
WO2015080009A1 (ja) | 2013-11-28 | 2015-06-04 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
JP2015129331A (ja) * | 2014-01-08 | 2015-07-16 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
JP2015129332A (ja) * | 2014-01-08 | 2015-07-16 | Jx日鉱日石金属株式会社 | 磁性材スパッタリングターゲット及びその製造方法 |
KR20190136124A (ko) | 2015-03-04 | 2019-12-09 | 제이엑스금속주식회사 | 자성재 스퍼터링 타깃 및 그 제조 방법 |
JP2018526525A (ja) * | 2015-05-14 | 2018-09-13 | マテリオン コーポレイション | スパッタリング標的 |
WO2017047753A1 (ja) * | 2015-09-18 | 2017-03-23 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材 |
EP3351654A4 (en) * | 2015-09-18 | 2019-04-17 | Sanyo Special Steel Co., Ltd. | CATHODIC SPUTTER TARGET MATERIAL |
JP2017057477A (ja) * | 2015-09-18 | 2017-03-23 | 山陽特殊製鋼株式会社 | CoFeB系合金ターゲット材 |
US10844476B2 (en) | 2015-09-18 | 2020-11-24 | Sanyo Special Steel Co., Ltd. | Sputtering target material |
US11377726B2 (en) | 2015-09-18 | 2022-07-05 | Sanyo Special Steel Co., Ltd. | Sputtering target material |
WO2020166380A1 (ja) * | 2019-02-13 | 2020-08-20 | 三井金属鉱業株式会社 | スパッタリングターゲット材 |
JP7422095B2 (ja) | 2019-02-13 | 2024-01-25 | 三井金属鉱業株式会社 | スパッタリングターゲット材 |
JP2020132995A (ja) * | 2019-02-26 | 2020-08-31 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材に適した合金 |
WO2020175424A1 (ja) * | 2019-02-26 | 2020-09-03 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材に適した合金 |
CN113453823A (zh) * | 2019-02-26 | 2021-09-28 | 山阳特殊制钢株式会社 | 适合于溅射靶材的合金 |
EP3932592A4 (en) * | 2019-02-26 | 2022-09-07 | Sanyo Special Steel Co., Ltd. | ALLOY FOR SPUTTER TARGET MATERIAL |
JP7382142B2 (ja) | 2019-02-26 | 2023-11-16 | 山陽特殊製鋼株式会社 | スパッタリングターゲット材に適した合金 |
Also Published As
Publication number | Publication date |
---|---|
CN102652184B (zh) | 2014-08-06 |
EP2511397A4 (en) | 2014-01-01 |
TWI480385B (zh) | 2015-04-11 |
US20120241316A1 (en) | 2012-09-27 |
CN102652184A (zh) | 2012-08-29 |
US9269389B2 (en) | 2016-02-23 |
MY160809A (en) | 2017-03-31 |
TW201120224A (en) | 2011-06-16 |
EP2511397B1 (en) | 2018-09-26 |
JP4837805B2 (ja) | 2011-12-14 |
EP2511397A1 (en) | 2012-10-17 |
JPWO2011070860A1 (ja) | 2013-04-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4837805B2 (ja) | 磁性材スパッタリングターゲット | |
JP5290393B2 (ja) | タンタルスパッタリングターゲット | |
JP6483803B2 (ja) | 磁性材スパッタリングターゲット及びその製造方法 | |
JP5144760B2 (ja) | タンタルスパッタリングターゲット | |
JP4920789B2 (ja) | タンタルスパッタリングターゲット | |
JP5969138B2 (ja) | タンタルスパッタリングターゲット | |
JP5389955B2 (ja) | タンタルスパッタリングターゲット | |
JP5524976B2 (ja) | タンタルスパッタリングターゲット | |
JP5654126B2 (ja) | Co−Cr−Pt−B系合金スパッタリングターゲット及びその製造方法 | |
WO2016186070A1 (ja) | 銅合金スパッタリングターゲット及びその製造方法 | |
JP6231035B2 (ja) | 磁気記録媒体用スパッタリングターゲットの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080056188.1 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011518968 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10835782 Country of ref document: EP Kind code of ref document: A1 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10835782 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010835782 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13513387 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |