WO2010084857A1 - ターゲット構造及びターゲット構造の製造方法 - Google Patents
ターゲット構造及びターゲット構造の製造方法 Download PDFInfo
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- WO2010084857A1 WO2010084857A1 PCT/JP2010/050555 JP2010050555W WO2010084857A1 WO 2010084857 A1 WO2010084857 A1 WO 2010084857A1 JP 2010050555 W JP2010050555 W JP 2010050555W WO 2010084857 A1 WO2010084857 A1 WO 2010084857A1
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- WIPO (PCT)
- Prior art keywords
- target
- flow path
- fluid flow
- fixed
- backing plate
- Prior art date
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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
Definitions
- the present invention relates to a target structure having a sputtering target, a target for fixing the target, and a cooling plate for cooling the target, and a method for manufacturing the target structure.
- a sputtering apparatus that forms a film on a substrate is used.
- the sputtering apparatus has a sputtering target that emits desired atoms by collision with ionized gas or the like.
- the back side of the target T is bonded to a backing plate B.
- the temperature of the target surface rises due to ion collision or the like, so that the target T needs to be cooled. Therefore, a cooling water passage A through which normal cooling water flows is formed inside the backing plate B.
- the target T and the backing plate B are joined by so-called bonding in order to improve the thermal conductivity for cooling, for example.
- Bonding is performed by bonding the target T and the backing plate B with the bonding material C interposed between the bonding surfaces of the target T and the backing plate B.
- the above bonding uses relatively expensive bonding materials such as In and Sn, and requires many steps such as target and backing plate alignment, bonding surface modification treatment, bonding material application, and heat treatment. become. For this reason, the bonding requires cost and time. On the other hand, if it is simply fixed by another method without bonding, the thermal conductivity between the target and the backing plate is lowered.
- the present invention has been made in view of such points, and it is possible to provide a target and a fixed plate that can be manufactured at a lower cost and in a shorter time while maintaining thermal conductivity between the target and a fixed plate such as a backing plate. It is an object of the present invention to provide a target structure having the same and a manufacturing method thereof.
- the present invention for achieving the above object is a target structure having a sputtering target and a fixed plate for fixing the target and cooling the target, and the fixed plate includes a cooling plate.
- a fluid flow path through which a fluid flows is formed, and the fluid flow path is formed at a position facing a portion where the target is relatively consumed during sputtering, and the fixed plate and the target do not have the fluid flow path.
- the target is fixed by a screw passing through the fixing plate, and a part of the target is exposed to the fluid flow path.
- the manufacturing process of the target structure can be simplified.
- the manufacturing cost can be greatly reduced as compared with the case of fixing by bonding.
- the manufacturing time can be greatly reduced.
- the fluid flow path of the fixed plate is installed at a portion where the target is consumed at a high temperature during sputtering. Therefore, as in the present invention, by fixing the target and the fixing plate with a screw that penetrates the fixing plate at a position where there is no fluid flow path, the position where the target is consumed less, that is, the thickness of the target is maintained. It can be screwed at the part. Therefore, even if the target is consumed due to long-term use, the target and the fixed plate can be kept fixed.
- a groove through which the cooling fluid flows is formed on a surface of the fixing plate on which the target is fixed, and the target and the fixing plate are fixed by the screw, whereby the groove is closed by the target.
- the fluid flow path may be formed.
- the fluid flow path of the fixed plate is exposed, so that foreign matters staying in the fluid flow path can be inspected and removed, for example, after a long period of use. Thereby, the product life of the fixed plate can be extended.
- the surface of the target that is fixed to the fixing plate may be formed with a convex portion that fits into the groove and closes the groove.
- the thickness of the target can be secured at the convex portion, the resistance of the target can be secured even when a high-pressure cooling fluid is passed through the fluid flow path to increase the cooling efficiency.
- the convex part fits into the groove, the airtightness of the fluid channel is improved. Furthermore, it is possible to easily position the target and the fixed rate when fixing.
- a path is formed at a position facing a portion where the target is relatively consumed during sputtering in the fixed plate, and the fixed plate and the target are connected by a screw passing through the fixed plate at a position where there is no fluid flow path. While fixing, a part of the target is exposed to the fluid flow path.
- the target structure can be manufactured at a lower cost and in a shorter time while maintaining the thermal conductivity between the target and the fixed plate.
- FIG. 1 is an explanatory view of a longitudinal section showing an outline of a configuration of a target structure 1 according to the present embodiment.
- the duplicate description is abbreviate
- the target structure 1 has a plate-like target 10 for sputtering, and a backing plate 11 as a plate-like fixing plate for cooling the target 10 while the target 10 is fixed.
- a plate-like target 10 for sputtering and a backing plate 11 as a plate-like fixing plate for cooling the target 10 while the target 10 is fixed.
- Al, Cu, Mo, ITO, Si, AZO or the like is used as the material of the target 10
- Cu, Al, Ti, stainless steel, or the like is used as the material of the backing plate 11, for example.
- the back side of the target 10 is bonded to the backing plate 11.
- a groove 20 through which a cooling fluid for cooling the target 10 flows is formed on the surface of the backing plate 11 on the target 10 side.
- the groove 20 is disposed in a substantially U shape so as to face the position of the magnet M of the sputtering apparatus in which the target structure 1 is installed.
- the groove 20 is processed by machining, for example.
- the sputtering apparatus generates a magnetic field by, for example, the magnet M, and controls ions, for example, by the magnetic field to cause the ions to collide with the target 10.
- a convex portion 30 that is fitted in the groove 20 and closes the groove 20 is formed on the back side of the target 10.
- the convex portion 30 is formed in a substantially U shape that is the same as the groove 20 when viewed from above.
- the convex portion 30 is formed lower than the depth of the groove 20, and when the convex portion 30 is fitted into the groove 20, the convex portion 30 closes the opening of the groove 20 to form the fluid flow path 40.
- the fluid flow path 40 is formed with, for example, cooling water inlet / outlet at both ends, and the cooling plate is adjusted to a low temperature by flowing cooling water through the fluid flow path 40, and the target 10 is moved by the backing plate 11. Can be cooled.
- the convex part 30 of the target 10 is formed by machining or extrusion molding.
- the backing plate 11 and the target 10 are fixed with a plurality of screws 50.
- the screw 50 is provided so as to penetrate the backing plate 11 from the back side of the backing plate 11, for example, at a position where it does not interfere with the fluid flow path 40.
- a ring-shaped seal 60 is provided outside the fluid flow path 40 between the backing plate 11 and the target 10.
- the backing plate 11 and the target 10 are fixed by the screws 50 in a state where the convex portions 30 are fitted in the grooves 20. At this time, the screw 50 is provided at a position without the fluid flow path 40. By this fixing, a part of the target 10 is exposed to the fluid flow path 40.
- the manufacturing process of the target structure 1 can be simplified. As a result, the manufacturing cost can be greatly reduced as compared with the case of fixing by bonding. In addition, the manufacturing time can be greatly reduced. Furthermore, since a part of the target 10 is exposed to the fluid flow path 40, the thermal conductivity between the target 10 and the backing plate 11 can be ensured. Further, since the target 10 and the backing plate 11 are fixed by the screw 50 penetrating the backing plate 11 at a position where there is no fluid flow path 40, the consumption (reduction) of the target 10 is far from the magnet M during sputtering as shown in FIG. Can be screwed at a position where the thickness of the target 10 is maintained. Therefore, even if the target 10 is consumed due to long-term use, the target 10 and the backing plate 11 can be fixed.
- the bonding material does not adhere to the target 10, and the used target 10 can be removed from the backing plate 11 and reused as a target material.
- heat is not used during bonding as in the case of bonding, for example, the backing plate 11 is not warped by heat, correction of the warping of the backing plate 11 is not necessary, and deterioration of the backing plate 11 itself can be prevented.
- channel 20 is formed in the surface to which the target 10 of the backing plate 11 is fixed, and the groove
- the fluid channel 40 is formed by being closed. In such a case, it is not necessary to weld half of the backing plates formed in advance, for example, as in the case where a fluid flow path penetrating the inside of the backing plate 11 is formed. Can be easily performed. Moreover, since the fluid flow path 40 of the backing plate 11 is exposed when the target 10 is removed, it is possible to inspect and remove foreign matters staying in the fluid flow path 40 due to, for example, long-time use. Thereby, the product life of the backing plate 11 can be extended.
- the surface fixed to the backing plate 11 of the target 10 is formed with a protrusion 30 that is fitted in the groove 20 and closes the groove 20.
- the tolerance of the target 10 is ensured even if the cooling efficiency is increased by flowing a high-pressure cooling fluid through the fluid flow path 40.
- the convex part 30 fits into the groove
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
10 ターゲット
11 バッキングプレート
20 溝
30 凸部
40 流体流路
50 ネジ
Claims (4)
- スパッタリング用のターゲットと、当該ターゲットが固定されるとともに、当該ターゲットを冷却するための固定プレートとを有するターゲット構造であって、
前記固定プレートには、冷却流体が流れる流体流路が形成され、当該流体流路は、スパッタリング時に前記ターゲットの消費が相対的に多い部分に対向する位置に形成され、
前記固定プレートと前記ターゲットは、前記流体流路がない位置で前記固定プレートを貫通するネジにより固定され、
前記ターゲットの一部は、前記流体流路に露出している、ターゲット構造。 - 前記固定プレートの前記ターゲットが固定される面には、前記冷却流体が流れる溝が形成され、
前記ターゲットと前記固定プレートとが前記ネジにより固定されることによって、前記溝が前記ターゲットにより閉鎖されて前記流体流路が形成されている、請求項1に記載のターゲット構造。 - 前記ターゲットの前記固定プレートに固定される面には、前記溝に嵌合され前記溝を閉鎖する凸部が形成されている、請求項2に記載のターゲット構造。
- スパッタリング用のターゲットと、当該ターゲットが固定されるとともに、当該ターゲットを冷却するための固定プレートと、を有するターゲット構造の製造方法であって、
冷却流体が流れる流体流路を、前記固定プレートにおけるスパッタリング時に前記ターゲットの消費が相対的に多い部分に対向する位置に形成し、前記流体流路がない位置で前記固定プレートを貫通するネジにより前記固定プレートと前記ターゲットを固定するとともに、前記ターゲットの一部を前記流体流路に露出させる、ターゲット構造の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020107019956A KR101059940B1 (ko) | 2009-01-22 | 2010-01-19 | 타겟 구조 및 타겟 구조의 제조 방법 |
CN2010800012070A CN101960043A (zh) | 2009-01-22 | 2010-01-19 | 靶构造及靶构造的制造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009-011919 | 2009-01-22 | ||
JP2009011919A JP4382867B1 (ja) | 2009-01-22 | 2009-01-22 | ターゲット構造及びターゲット構造の製造方法 |
Publications (1)
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WO2010084857A1 true WO2010084857A1 (ja) | 2010-07-29 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2010/050555 WO2010084857A1 (ja) | 2009-01-22 | 2010-01-19 | ターゲット構造及びターゲット構造の製造方法 |
Country Status (5)
Country | Link |
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JP (1) | JP4382867B1 (ja) |
KR (1) | KR101059940B1 (ja) |
CN (1) | CN101960043A (ja) |
TW (1) | TW201033388A (ja) |
WO (1) | WO2010084857A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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US20130087454A1 (en) * | 2010-07-23 | 2013-04-11 | Jx Nippon Mining & Metals Corporation | Magnetic Material Sputtering Target Provided with Groove in Rear Face of Target |
WO2012140798A1 (ja) * | 2011-04-12 | 2012-10-18 | 株式会社アルバック | ターゲット及びターゲットの製造方法 |
KR101079621B1 (ko) * | 2011-06-30 | 2011-11-03 | 박경일 | 타겟과 백킹 플레이트의 비접착식 체결구조 |
CN102501045B (zh) * | 2011-10-20 | 2014-10-08 | 宁波江丰电子材料股份有限公司 | 镍靶材组件的加工方法及加工装置 |
CN104588807B (zh) * | 2013-10-31 | 2016-07-20 | 宁波江丰电子材料股份有限公司 | 背板的形成方法和背板 |
KR102015609B1 (ko) * | 2015-07-24 | 2019-08-28 | 어플라이드 머티어리얼스, 인코포레이티드 | 열 민감성 접합 금속 타겟들의 냉각 및 활용도 최적화 |
KR20180068335A (ko) * | 2015-11-12 | 2018-06-21 | 허니웰 인터내셔널 인코포레이티드 | 냉각 구조물을 갖는 스퍼터 타겟 배킹 플레이트 어셈블리 |
CN108018534B (zh) * | 2017-12-12 | 2020-12-11 | 中国电子科技集团公司第四十八研究所 | 一种用于装夹靶材的磁控溅射镀膜装夹装置 |
TWI687534B (zh) * | 2018-09-07 | 2020-03-11 | 住華科技股份有限公司 | 背板、使用其之濺射靶材及其使用方法 |
JP7362327B2 (ja) * | 2019-07-18 | 2023-10-17 | 東京エレクトロン株式会社 | ターゲット構造体及び成膜装置 |
CN110828021A (zh) * | 2019-11-04 | 2020-02-21 | 中国原子能科学研究院 | 一种用于医用同位素生产靶的水冷机构 |
CN111455335B (zh) * | 2020-04-24 | 2022-10-21 | 河北恒博新材料科技股份有限公司 | 一种平面靶材的绑定方法 |
CN112323026A (zh) * | 2020-10-29 | 2021-02-05 | 珠海和泽科技有限公司 | 靶材背板及其制作方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0324265A (ja) * | 1989-06-05 | 1991-02-01 | Balzers Ag | ターゲットを冷却する方法及びターゲットの冷却装置 |
JPH0625839A (ja) * | 1992-01-10 | 1994-02-01 | Sony Corp | スパッタ装置及びカソード |
JPH10140341A (ja) * | 1996-11-08 | 1998-05-26 | Sony Corp | スパッタ装置 |
JP2000026962A (ja) * | 1998-07-09 | 2000-01-25 | Matsushita Electric Ind Co Ltd | スパッタリング装置 |
-
2009
- 2009-01-22 JP JP2009011919A patent/JP4382867B1/ja not_active Expired - Fee Related
-
2010
- 2010-01-19 CN CN2010800012070A patent/CN101960043A/zh active Pending
- 2010-01-19 WO PCT/JP2010/050555 patent/WO2010084857A1/ja active Application Filing
- 2010-01-19 KR KR1020107019956A patent/KR101059940B1/ko not_active IP Right Cessation
- 2010-01-22 TW TW99101819A patent/TW201033388A/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0324265A (ja) * | 1989-06-05 | 1991-02-01 | Balzers Ag | ターゲットを冷却する方法及びターゲットの冷却装置 |
JPH0625839A (ja) * | 1992-01-10 | 1994-02-01 | Sony Corp | スパッタ装置及びカソード |
JPH10140341A (ja) * | 1996-11-08 | 1998-05-26 | Sony Corp | スパッタ装置 |
JP2000026962A (ja) * | 1998-07-09 | 2000-01-25 | Matsushita Electric Ind Co Ltd | スパッタリング装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20100114923A (ko) | 2010-10-26 |
CN101960043A (zh) | 2011-01-26 |
TWI359202B (ja) | 2012-03-01 |
KR101059940B1 (ko) | 2011-08-29 |
JP2010168621A (ja) | 2010-08-05 |
TW201033388A (en) | 2010-09-16 |
JP4382867B1 (ja) | 2009-12-16 |
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