WO2006067937A1 - Sb-Te系合金焼結体ターゲット及びその製造方法 - Google Patents
Sb-Te系合金焼結体ターゲット及びその製造方法 Download PDFInfo
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- WO2006067937A1 WO2006067937A1 PCT/JP2005/021871 JP2005021871W WO2006067937A1 WO 2006067937 A1 WO2006067937 A1 WO 2006067937A1 JP 2005021871 W JP2005021871 W JP 2005021871W WO 2006067937 A1 WO2006067937 A1 WO 2006067937A1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C12/00—Alloys based on antimony or bismuth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/068—Flake-like particles
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
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- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/266—Sputtering or spin-coating layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24308—Metals or metalloids transition metal elements of group 11 (Cu, Ag, Au)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/2431—Metals or metalloids group 13 elements (B, Al, Ga, In)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
Definitions
- the present invention relates to an Sb—Te alloy sintered sputtering target capable of effectively suppressing generation of particles having high density and bending strength, and a method for producing the same.
- phase change recording materials that is, as media for recording information using phase transformation.
- As a method of forming a thin film made of this Sb—Te alloy material it is usually performed by means generally called physical vapor deposition, such as vacuum vapor deposition or sputtering.
- physical vapor deposition such as vacuum vapor deposition or sputtering.
- operability and film stability are often formed using magnetron sputtering.
- a film is formed by sputtering, in which positive ions such as Ar ions are physically collided with a target placed on a cathode, and the material constituting the target is released by the collision energy, and the anodes face each other. This is done by laminating a film having almost the same composition as the target material on the side substrate.
- the coating method by sputtering has the characteristics that it is possible to form a thin film in angstrom units and a film thickness of several tens of ⁇ m from the film at a stable film formation speed by adjusting the processing time, power supply, etc. RU
- the problem is particularly that particles are generated during sputtering, or abnormal discharge (micro arcing) or cluster ( The generation of nodules (protrusions) that cause the formation of thin films (stiffened and adhered), the generation of cracks or cracks in the target during sputtering, and the manufacturing process of the sintered powder for the target It absorbs gas components such as oxygen in large quantities.
- the occurrence of cracks or cracks in the target is due to the low density and strength (bending strength) of the target.
- Such a problem in target or sputtering is a major cause of deteriorating the quality of a thin film as a recording medium.
- the above-described problem is largely influenced by the particle size of the sintering powder or the structure and properties of the target.
- the target obtained by sintering does not have sufficient characteristics. In the event of particle generation, abnormal discharge, nodule generation, target cracking or cracking, and gas components such as a large amount of oxygen contained in the target could not be avoided o
- Ge—Te alloy As a conventional method for producing a target for Sb—Te based sputtering, Ge—Te alloy, Sb—Te alloy, and a rapidly cooled powder by an inert gas atomization method were prepared.
- Ge / Te 1/1
- alloy powders containing Ge, Sb, and Te a powder with a tap density (relative density) of 50% or more is poured into a mold and pressed cold or warm.
- Ge-Sb-Te is characterized by the fact that the sintered material is sintered by heat treatment in Ar or a vacuum atmosphere, and the oxygen content in the sintered body is 700 ppm or less.
- a raw material containing Ge, Sb, and Te is used to produce a rapidly cooled powder by an inert gas atomization method, and the powder has a specific surface area of 300 mm that is 20 m or more and has a specific surface area of 300 mm.
- a method for producing a Ge-Sb-Te-based sputtering target material that uses a powder with a particle size distribution of 2 Zg or less and sinters a compact that has been cold-formed or hot-formed. For example, see Patent Document 3).
- the atomized powder is used as it is, the sufficient strength of the target is not obtained, and the refinement and homogeneity of the target structure is achieved. hard. It also forms a phase change recording layer with a high allowable oxygen content. There is a problem that it cannot be said to be sufficient as an Sb—Te-based sputtering target.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-265262
- Patent Document 2 JP 2001-98366 A
- Patent Document 3 Japanese Patent Laid-Open No. 2001-123266
- Patent Document 4 Japanese Patent Laid-Open No. 10-81962
- Patent Document 5 Japanese Unexamined Patent Publication No. 2001-123267
- Patent Document 6 Japanese Unexamined Patent Publication No. 2000-129316
- the present invention effectively solves the above-mentioned problems, particularly suppresses generation of particles, abnormal discharge, generation of nodules, generation of cracks or cracks in the target, and the like.
- Phase change recording layer consisting of Sb-Te alloy powder for target sintering, especially Ag-In-Sb-Te alloy or Ge-Sb-Te alloy, which can reduce gas components such as oxygen contained in it
- An Sb—Te-based alloy sintered target for sputtering and a method for producing the same are provided.
- the technical means for solving the above problems is that a stable and homogeneous phase change recording layer can be obtained by devising the properties of the powder and the structure and characteristics of the target. Obtained.
- the Sb—Te alloy sintered body target according to 1 above characterized in that particles whose long axis is aligned within ⁇ 45 ° in a direction parallel to the target surface account for 60% or more of the whole. ⁇ 3.
- the spherical atomized powder is crushed to a flat shape and then sintered.
- Sb—Te characterized in that particles with a short axis to long axis ratio (flatness) of flat particles present in the consolidated target account for 50% or more of the total.
- FIG. 1 A micrograph of the target surface of Example 1 is shown (a is for a display scale of 200 m, and b is for a display scale of 100 ⁇ m).
- FIG. 2 A micrograph of the target surface of Comparative Example 1 is shown (a is for a display scale of 250 m and b is for a display scale of 50 ⁇ m).
- an approximately spherical gas atomized powder of an Sb—Te alloy is used, press-molded, and sintered to obtain a sputtering target.
- an Sb—Te alloy target containing 10 to 90 at% Sb, particularly an Sn—Te alloy containing 20 to 80 at% Sb is used.
- the present invention is not limited to such a component range but can be applied outside this component range.
- gas atomized powder can be obtained as a fine powder compared to machine powder, and it can be prevented from being contaminated by the use of a grinding machine.
- the target sintered with this gas atomized powder can easily be processed with a surface roughness Ra of 0.1 ⁇ m or less, and as will be described later, it has superior characteristics compared to mechanically pulverized powder. .
- the sputtering target of the present invention uses atomized powder of Sb-Te alloy composed of substantially spherical particles.
- the atomized powder is pressed, and further sintered to obtain a sintered body.
- spherical atomized powder is crushed and flattened particles are formed, and the ratio of the short axis to long axis (flatness) of the flat particles is 0.6 or less.
- One of the biggest features is that it accounts for more than 50%.
- Such a target structure can improve the density and the bending resistance is remarkably increased. Therefore, the high-density'high-strength Sb-Te alloy sintered compact target of the present invention can remarkably reduce the occurrence of cracks or cracks in the production process. Then, generation of nodules and particles due to cracks or cracks in the target can be effectively suppressed.
- the orientation of the long axis of the flat particles is within ⁇ 45 ° in the direction parallel to the target surface. It is more desirable that the aligned particles account for 60% or more of the total. As a result, it is possible to stably improve the density of the target and the bending strength.
- the orientation of the long axis of this flat particle is within ⁇ 45 ° in the direction parallel to the target surface, and the ratio of the short particle to the long axis (flatness) of the flat particle is 0.6.
- the following particles account for 50% or more of the force. Of course, this is the main factor that can effectively suppress the generation of nodules and particles due to cracks or cracks in the target.
- oxygen as an impurity is as low as possible, but the content is particularly preferably 1500 wtppm or less. Inclusion of oxygen in excess of this tends to increase the amount of oxide and cause impurities. Decreasing the oxygen content and reducing the amount of oxides prevents arcing and suppresses the generation of nodules and particles due to this arcing.
- the Sb—Te alloy sintered sputtering target of the present invention contains at least 25a% of one or more elements selected from Ag, In, Ga, Ti, Au, Pt, and Pd as additive elements. be able to. Within this range, a desired glass transition point and transformation speed can be obtained, and at the same time, surface defects introduced by machining can be minimized, and particles can also be effectively suppressed. .
- the erosion surface after sputtering becomes a rough surface with a surface roughness Ra of 1 ⁇ m or more, and the force that tends to become rougher as the sputtering progresses. Then, the surface roughness Ra of the erosion surface can be maintained at 0.4 / zm or less, generation of nodules and particles can be effectively suppressed, and a unique Sb—Te alloy sputtering target can be obtained.
- the Sb-Te alloy target of the present invention having a uniform and unique fine structure can suppress the generation of particles due to cracks or cracks.
- composition refinement suppresses the composition variation of the sputtered film within the plane and between lots, and the phase change.
- the quality of the recording layer is stabilized. In this way, generation of particles, abnormal discharge, generation of nodules, and the like during sputtering can be effectively suppressed.
- the content of gas components such as oxygen can be 1500 ppm or less, particularly lOOO ppm or less, and the content of gas components such as oxygen can be 500 ppm or less.
- Such reduction of gas components such as oxygen can further reduce the occurrence of nodules, particles and abnormal discharge.
- this atomized powder was pressed and sintered.
- the press pressure was 150 kgfZcm 2 and the press temperature was 600 ° C.
- the sintered body thus obtained was mechanically cleaned and further polished to obtain a Ge Sb Te alloy target.
- the flatness ratio (ratio of short axis to long axis) in the target tissue was 0.6% or more, accounting for 80%.
- the oxygen concentration of this target was 350 ppm, and the ratio of the flat orientation of the structure (particles whose major axis was aligned within ⁇ 45 ° in the direction parallel to the target surface) was 90%.
- the relative density was 100% and the bending strength was 70 MPa.
- the generation of cracks or cracks was completely undetectable.
- the results are shown in Table 1.
- Ma Figure 1 (a, b) shows micrographs of the target surface thus obtained. a is for a display scale of 200 ⁇ m and b is for a display scale of 100 ⁇ m. In both figures, the press direction is the vertical direction of the figure (photo).
- the atomized powder was produced by injecting the alloy material at 780 ° C using a gas atomizer and a nozzle diameter of 2.OOmm ⁇ using argon (lOOkgf Zcm 2 ) as the injection gas. This gave a clean spherical powder. The oxygen content of this gas atomized powder was 140 ppm. Furthermore, this atomized powder was pressed and sintered. The press pressure was 200 kgfZcm 2 and the press temperature was 500 ° C. The sintered body thus obtained was mechanically cleaned and further polished to obtain an Ag—In—Sb—Te alloy target.
- the flatness ratio (ratio of short axis to long axis) in the target tissue was 0.6% or more, accounting for 85%.
- the oxygen concentration of this target was 160 ppm
- the ratio of the flat orientation of the tissue was 80%.
- the relative density was 95% and the bending strength was 72 MPa.
- the generation of cracks or cracks was completely undetectable.
- Table 1 Sputtering was performed using this target. As a result, Table 1 shows the results of the number of particles generated and the number of nodules when sputtering up to 100kW.hr was performed without arcing.
- Ge Sb Te alloy raw material using gas atomizer, nozzle diameter 2.00mm ⁇ , injection
- this atomized powder was pressed and sintered.
- the pressing pressure was 75 kgfZcm 2 and the pressing temperature was 600 ° C.
- the sintered body thus obtained was mechanically cleaned and further polished to obtain a Ge Sb Te alloy target.
- the number of particles generated is 102 Z wafers and the number of nodules with an abnormally large number of targets is 300.
- Ge Sb Te alloy raw material using gas atomizer, nozzle diameter 2.00mm ⁇ , injection
- this atomized powder was pressed and sintered.
- the press pressure was 150 kgfZcm 2 and the press temperature was 500 ° C.
- the sintered body thus obtained was mechanically cleaned and further polished to obtain a Ge Sb Te alloy target.
- the flatness ratio (ratio of minor axis to major axis) in the target tissue was as low as 20%.
- the oxygen concentration of this target was 350 ppm, and the ratio of the square shape of the structure (particles whose major axis was aligned within ⁇ 45 ° in the direction parallel to the target surface) was 60%.
- the bending resistance with a relative density of 85% was significantly reduced to 55 MPa.
- production of the crack was recognized by the target. The results are shown in Table 1.
- the press pressure was 150 kgf / cm 2 and the press temperature was 600 ° C.
- the sintered body thus obtained was machined and further polished to obtain a Ge Sb Te alloy target.
- the flatness ratio (ratio of short axis to long axis) in the target tissue was as low as 30%.
- the oxygen concentration of this target increased to 1800ppm.
- the ratio of the square position of the tissue (particles whose major axis is aligned within ⁇ 45 ° in the direction parallel to the target surface) was 35%.
- the mechanical density was high and the relative density was as high as 99%, but the bending strength was reduced to 60MPa. And cracks were observed on the target.
- the results are shown in Table 1.
- Atomized powder was produced by spraying with C. This gave a clean spherical powder.
- the oxygen content of this gas atomized powder was 120 ppm.
- this atomized powder was pressed and sintered.
- the press pressure was 200 kgfZcm 2 and the press temperature was 400 ° C.
- the sintered body thus obtained was mechanically cleaned and further polished to obtain an Ag—In—Sb—Te alloy target.
- the flatness ratio (ratio of short axis to long axis) in the target tissue was as low as 20%.
- the oxygen concentration of this target was 160 ppm, and the ratio of the square shape of the structure (particles whose major axis was aligned within ⁇ 45 ° in the direction parallel to the target surface) was 70%.
- the bending resistance which has a low relative density of 80%, is extremely low at 48 MPa. I gave it.
- production of the crack was recognized by the target. The results are shown in Table 1.
- the number of particles generated when sputtering up to lOOkW'hr is 90.
- the number of nodules in the Z wafer and an abnormally large number of targets is 300.
- Atomized powder was produced by spraying with C. This gave a spherical powder.
- the oxygen content of this gas atomized powder was 180 ppm.
- this atomized powder was pressed and sintered.
- the press pressure was 200 kgfZcm 2 and the press temperature was 500 ° C.
- the sintered body thus obtained was mechanically cleaned and further polished to obtain an Ag—In—Sb—Te alloy target.
- the ratio of particles with a flatness ratio (ratio of short axis to long axis) of 0.6 or more in the target tissue was 60%.
- the oxygen concentration of this target was 210 ppm, and the ratio of the square shape of the structure (particles whose major axis was aligned within ⁇ 45 ° in the direction parallel to the target surface) was 55%.
- the ratio of the oblate square position was strong without satisfying the condition of 60% or more of the present invention.
- production of the crack was recognized by the target. The results are shown in Table 1.
- the Sb—Te-based alloy sintered body of the present invention is mechanically covered with cutting at the stage of target finishing.
- a large amount of cracks and the like are formed on the surface of the work-affected layer.
- the present invention has a high density and a high bending force, the nodules that cause such cracks or cracks immediately after the start of target use are provided.
- the generation of particles and particles can be greatly reduced.
- by reducing the oxygen content and increasing the purity it becomes possible to prevent abnormal discharge (arcing) starting from impurities (acidic substances) and to suppress the generation of particles due to arcing. Because it has the excellent effect of being able to
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005800439126A CN101084324B (zh) | 2004-12-24 | 2005-11-29 | Sb-Te系合金烧结体靶及其制造方法 |
| EP05811469.5A EP1829985B1 (en) | 2004-12-24 | 2005-11-29 | Sb-Te ALLOY SINTERING PRODUCT TARGET |
| US11/722,218 US7943021B2 (en) | 2004-12-24 | 2005-11-29 | Sb-Te alloy sintered compact target and manufacturing method thereof |
| JP2006548750A JP4642780B2 (ja) | 2004-12-24 | 2005-11-29 | Sb−Te系合金焼結体ターゲット及びその製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004373058 | 2004-12-24 | ||
| JP2004-373058 | 2004-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006067937A1 true WO2006067937A1 (ja) | 2006-06-29 |
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ID=36601542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/021871 Ceased WO2006067937A1 (ja) | 2004-12-24 | 2005-11-29 | Sb-Te系合金焼結体ターゲット及びその製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7943021B2 (ja) |
| EP (2) | EP1829985B1 (ja) |
| JP (1) | JP4642780B2 (ja) |
| KR (1) | KR100939473B1 (ja) |
| CN (1) | CN101084324B (ja) |
| TW (1) | TWI317385B (ja) |
| WO (1) | WO2006067937A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008044626A1 (fr) * | 2006-10-13 | 2008-04-17 | Nippon Mining & Metals Co., Ltd. | CIBLE DE PULVÉRISATION DE FRITTAGE D'ALLIAGE À BASE DE Sb-Te |
| WO2008081585A1 (ja) * | 2007-01-05 | 2008-07-10 | Kabushiki Kaisha Toshiba | スパッタリングターゲットとその製造方法 |
| US20100206724A1 (en) * | 2007-09-13 | 2010-08-19 | Nippon Mining And Metals Co., Ltd. | Method of Producing Sintered Compact, Sintered Compact, Sputtering Target Formed from the same, and Sputtering Target-Backing Plate Assembly |
| KR20160078478A (ko) | 2014-03-25 | 2016-07-04 | 제이엑스금속주식회사 | Sb-Te 기 합금 소결체 스퍼터링 타겟 |
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|---|---|---|---|---|
| CN101068947A (zh) * | 2004-11-30 | 2007-11-07 | 日矿金属株式会社 | Sb-Te系合金烧结体溅射靶 |
| JP4885305B2 (ja) * | 2008-03-17 | 2012-02-29 | Jx日鉱日石金属株式会社 | 焼結体ターゲット及び焼結体の製造方法 |
| KR20160145839A (ko) | 2009-05-27 | 2016-12-20 | 제이엑스금속주식회사 | 소결체 타겟 및 소결체의 제조 방법 |
| JP5364202B2 (ja) | 2010-04-26 | 2013-12-11 | Jx日鉱日石金属株式会社 | Sb−Te基合金焼結体スパッタリングターゲット |
| US9555473B2 (en) * | 2011-10-08 | 2017-01-31 | The Boeing Company | System and method for increasing the bulk density of metal powder |
| JP6801768B2 (ja) * | 2018-11-20 | 2020-12-16 | 三菱マテリアル株式会社 | スパッタリングターゲット |
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- 2005-11-29 WO PCT/JP2005/021871 patent/WO2006067937A1/ja not_active Ceased
- 2005-11-29 KR KR1020077014176A patent/KR100939473B1/ko not_active Expired - Lifetime
- 2005-11-29 US US11/722,218 patent/US7943021B2/en active Active
- 2005-11-29 EP EP10183276.4A patent/EP2264216B1/en not_active Expired - Lifetime
- 2005-11-29 JP JP2006548750A patent/JP4642780B2/ja not_active Expired - Lifetime
- 2005-12-05 TW TW094142757A patent/TWI317385B/zh not_active IP Right Cessation
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008044626A1 (fr) * | 2006-10-13 | 2008-04-17 | Nippon Mining & Metals Co., Ltd. | CIBLE DE PULVÉRISATION DE FRITTAGE D'ALLIAGE À BASE DE Sb-Te |
| JPWO2008044626A1 (ja) * | 2006-10-13 | 2010-02-12 | 日鉱金属株式会社 | Sb−Te基合金焼結体スパッタリングターゲット |
| US8882975B2 (en) | 2006-10-13 | 2014-11-11 | Jx Nippon Mining & Metals Corporation | Sb-Te base alloy sinter sputtering target |
| WO2008081585A1 (ja) * | 2007-01-05 | 2008-07-10 | Kabushiki Kaisha Toshiba | スパッタリングターゲットとその製造方法 |
| JP2013032597A (ja) * | 2007-01-05 | 2013-02-14 | Toshiba Corp | スパッタリングターゲットの製造方法 |
| JP5215192B2 (ja) * | 2007-01-05 | 2013-06-19 | 株式会社東芝 | スパッタリングターゲット |
| US20100206724A1 (en) * | 2007-09-13 | 2010-08-19 | Nippon Mining And Metals Co., Ltd. | Method of Producing Sintered Compact, Sintered Compact, Sputtering Target Formed from the same, and Sputtering Target-Backing Plate Assembly |
| KR101552028B1 (ko) * | 2007-09-13 | 2015-09-09 | 제이엑스 닛코 닛세키 킨조쿠 가부시키가이샤 | 소결체의 제조 방법, 소결체, 당해 소결체로 이루어지는 스퍼터링 타겟 및 스퍼터링 타겟-백킹 플레이트 조립체 |
| KR20160078478A (ko) | 2014-03-25 | 2016-07-04 | 제이엑스금속주식회사 | Sb-Te 기 합금 소결체 스퍼터링 타겟 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070086537A (ko) | 2007-08-27 |
| EP1829985B1 (en) | 2013-10-16 |
| EP2264216B1 (en) | 2017-10-18 |
| JP4642780B2 (ja) | 2011-03-02 |
| EP2264216A3 (en) | 2012-03-21 |
| US20100025236A1 (en) | 2010-02-04 |
| TW200622018A (en) | 2006-07-01 |
| KR100939473B1 (ko) | 2010-01-29 |
| US7943021B2 (en) | 2011-05-17 |
| CN101084324B (zh) | 2010-06-09 |
| JPWO2006067937A1 (ja) | 2008-06-12 |
| EP1829985A4 (en) | 2008-06-04 |
| EP2264216A2 (en) | 2010-12-22 |
| EP1829985A1 (en) | 2007-09-05 |
| TWI317385B (zh) | 2009-11-21 |
| CN101084324A (zh) | 2007-12-05 |
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