WO2016068327A1 - ワークピースを研磨するための化学機械研磨装置 - Google Patents
ワークピースを研磨するための化学機械研磨装置 Download PDFInfo
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- WO2016068327A1 WO2016068327A1 PCT/JP2015/080823 JP2015080823W WO2016068327A1 WO 2016068327 A1 WO2016068327 A1 WO 2016068327A1 JP 2015080823 W JP2015080823 W JP 2015080823W WO 2016068327 A1 WO2016068327 A1 WO 2016068327A1
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- Prior art keywords
- polishing
- workpiece
- chemical mechanical
- work piece
- annular
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/005—Control means for lapping machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/10—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/20—Lapping pads for working plane surfaces
- B24B37/24—Lapping pads for working plane surfaces characterised by the composition or properties of the pad materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
- B24B37/30—Work carriers for single side lapping of plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
- B24B5/047—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally of workpieces turning about a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/363—Single-purpose machines or devices for grinding surfaces of revolution in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
- B24B9/107—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass for glass plates while they are turning
Definitions
- the present invention relates to a chemical mechanical polishing (CMP) apparatus for polishing a workpiece such as a metal casing to provide a mirror finish.
- CMP chemical mechanical polishing
- metal housing parts formed from aluminum or stainless steel, or resin housing parts.
- These metal casing parts and resin casing parts are, for example, mobile phones, smartphones, multifunctional mobile terminals, portable game machines, cameras, watches, music media players, personal computers, electronic devices, automobile parts, ornaments, medical devices, etc. It is used for.
- the conventional lapping and polishing techniques can polish the surface and mirror finish, but it is very difficult to perform curved mirror finishing with the lapping and polishing techniques.
- An object of the present invention is to provide a chemical mechanical polishing apparatus capable of mirror polishing a workpiece having a peripheral edge composed of a curved surface.
- One aspect of the present invention is a chemical mechanical polishing apparatus for polishing a workpiece having a polygonal shape, the polishing pad having an annular polishing surface having a curved longitudinal section, and a rotatable supporting the polishing pad Polishing table, workpiece holding unit for holding the workpiece, rotating device for rotating the workpiece holding unit around the axis of the workpiece, and pressing the peripheral edge of the workpiece against the annular polishing surface
- a pressing device a polishing liquid supply nozzle that supplies a polishing liquid to the annular polishing surface, and an operation control unit that changes a speed at which the rotating device rotates the workpiece according to a rotation angle of the workpiece
- the pressing device is arranged inside the workpiece holding portion in the radial direction of the polishing table.
- the polishing apparatus further includes a polishing state monitoring device that monitors a polishing state of the peripheral portion of the workpiece.
- the polishing pad has an annular shape, and the annular polishing surface is formed from an inner peripheral surface of the polishing pad.
- the peripheral portion of the workpiece is polished by sliding contact with the annular polishing surface. Since the annular polishing surface has a curved longitudinal section, the curved surface constituting the peripheral portion of the workpiece uniformly contacts the annular polishing surface and is polished to a mirror surface.
- FIG. 1 is a side view showing a chemical mechanical polishing apparatus according to an embodiment of the present invention. It is a top view of the chemical mechanical polishing apparatus shown in FIG. It is a figure which shows the rectangular workpiece when a rotation angle is 0 degree
- FIG. 10 is a plan view of the chemical mechanical polishing apparatus shown in FIG. 9. It is a side view which shows the chemical mechanical polishing apparatus which concerns on other embodiment. It is a top view of the chemical mechanical polishing apparatus shown in FIG. It is a top view which shows one Embodiment of the chemical mechanical polishing apparatus provided with two or more polishing heads shown in FIG.11 and FIG.12.
- FIG. 1 is a side view showing a chemical mechanical polishing apparatus according to an embodiment of the present invention
- FIG. 2 is a plan view of the chemical mechanical polishing apparatus.
- the chemical mechanical polishing apparatus includes a polishing pad 2 having an annular polishing surface 2a, a rotatable polishing table 3 that supports the polishing pad 2, a polishing liquid supply nozzle 5 that supplies a polishing liquid to the annular polishing surface 2a, and a workpiece.
- a polishing head 1 for polishing the peripheral edge of the workpiece W by pressing the peripheral edge of W against the annular polishing surface 2a of the polishing pad 2 is provided.
- the peripheral edge of the workpiece W is composed of a curved surface.
- the annular polishing surface 2 a has a longitudinal section curved inward, and the longitudinal section of the annular polishing surface 2 a has a shape along the longitudinal section of the peripheral edge of the workpiece W.
- the curvature of the curved longitudinal section of the annular polishing surface 2a is the same as or slightly larger than the curvature of the longitudinal section of the peripheral edge of the workpiece W.
- the polishing head 1 includes a workpiece holding unit 11 that holds the workpiece W, a servo motor 15 that serves as a rotating device that rotates the workpiece holding unit 11 around the axis of the workpiece W, and the servo motor 15 that is used as the polishing pad 2. And an air cylinder 14 as a pressing device that presses the peripheral edge of the workpiece W held by the workpiece holder 11 against the annular polishing surface 2a.
- the polishing pad 2 of the present embodiment is disk-shaped, and the annular polishing surface 2a constitutes at least a part of the outer peripheral surface of the polishing pad 2.
- the polishing pad 2 is attached to the upper surface of the polishing table 3.
- the polishing table 3 is rotated about the axis by a table motor 18, and the polishing pad 2 rotates integrally with the polishing table 3 about the axis.
- the workpiece holding unit 11 is configured to be able to hold the workpiece W in a detachable manner by screwing, magnetic force, vacuum suction, freezing and fixing, a vacuum chuck, or the like.
- the workpiece holding unit 11 is configured to hold the workpiece W horizontally.
- the workpiece holder 11 is connected to a servo motor 15.
- the servo motor 15 is a rotating device that rotates the workpiece holding unit 11 and the workpiece W held by the workpiece holding unit 11 around their axis.
- the servo motor 15 includes a workpiece encoder 11 and a rotary encoder (not shown) that measures the rotation angle of the workpiece W.
- the servo motor 15 is held by a linear guide 20 that extends horizontally, and can move in the horizontal direction along the longitudinal direction of the linear guide 20.
- the longitudinal direction of the linear guide 20 is parallel to the radial direction of the polishing pad 2, and the servo motor 15, the workpiece holding unit 11, and the workpiece W are movable in the radial direction of the polishing pad 2.
- Servo motor 15 is connected to air cylinder 14.
- the air cylinder 14 is configured to move the servo motor 15, the workpiece holder 11, and the workpiece W together in the horizontal direction (that is, the radial direction of the polishing pad 2). More specifically, the air cylinder 14 can be moved in a direction in which the workpiece W is separated from the annular polishing surface 2a of the polishing pad 2 and in a direction in which the workpiece W approaches the annular polishing surface 2a.
- An operation control unit 25 is connected to the air cylinder 14 and the servo motor 15.
- the operation control unit 25 is configured to control operations of the air cylinder 14 and the servo motor 15. More specifically, the operation control unit 25 controls the force generated by the air cylinder 14, that is, the force by which the peripheral portion of the workpiece W is pressed against the annular polishing surface 2a, and the servo motor 15 further controls the workpiece W. Controls the speed of rotating.
- the linear guide 20 and the air cylinder 14 are fixed to the base 27.
- the base 27 is connected to a positioning mechanism 29 for adjusting the position in the vertical direction.
- the vertical positions of the air cylinder 14, the linear guide 20, and the workpiece holder 11 are adjusted by the positioning mechanism 29. Therefore, the position in the vertical direction relative to the annular polishing surface 2 a of the workpiece W held by the workpiece holder 11 is also adjusted by the positioning mechanism 29.
- the supply port of the polishing liquid supply nozzle 5 faces the annular polishing surface 2a of the polishing pad 2, and is configured to supply a polishing liquid such as slurry to the annular polishing surface 2a.
- the supply port of the polishing liquid supply nozzle 5 is disposed on the upstream side of the workpiece W in the rotation direction of the polishing pad 2 and the polishing table 3. Therefore, the polishing liquid supplied from the polishing liquid supply nozzle 5 is carried to the peripheral portion which is the portion to be polished of the workpiece W by the rotating annular polishing surface 2a.
- a polishing liquid (slurry) is supplied from the polishing liquid supply nozzle 5 to the annular polishing surface 2 a of the polishing pad 2 while rotating the polishing pad 2 and the polishing table 3 as shown in FIGS. 1 and 2. Further, the workpiece holding unit 11 and the workpiece W are rotated by the servo motor 15. In this state, the air cylinder 14 pushes the servo motor 15, the workpiece holding part 11, and the workpiece W toward the center of the polishing pad 2, and presses the peripheral edge of the workpiece W against the annular polishing surface 2a. The peripheral edge of the workpiece W is brought into sliding contact with the annular polishing surface 2a in the presence of the polishing liquid.
- the peripheral edge of the workpiece W is polished to a mirror surface by a chemical component of the polishing liquid and abrasive grains contained in the polishing liquid. Since the annular polishing surface 2a has a longitudinal section along the longitudinal section of the peripheral portion of the workpiece W, the curved surface constituting the peripheral portion of the workpiece W uniformly contacts the annular polishing surface 2a and is polished to a mirror surface. .
- the operation control unit 25 is configured to change the rotation speed of the workpiece W according to the rotation angle of the workpiece W.
- FIG. 3 is a diagram showing a rectangular workpiece W when the rotation angle is 0 degree
- FIG. 4 is a diagram showing the rectangular workpiece W when the rotation angle is 45 degrees.
- FIG. 5 is a graph showing the relationship between the rotation angle of the workpiece W and the rotation speed of the workpiece W. The vertical axis in FIG. 5 represents the rotational speed [angle / minute] of the workpiece W, and the horizontal axis represents the rotational angle of the workpiece W.
- the rotation angle of the workpiece W is acquired by the above-described rotary encoder built in the servo motor 15.
- the measured value of the rotation angle is sent from the rotary encoder to the operation control unit 25.
- the operation control unit 25 changes the rotation speed of the workpiece W based on the measured value of the rotation angle.
- the contact time between the workpiece W and the annular polishing surface 2a is uniform over the entire peripheral edge of the workpiece W. Therefore, the polishing pad 2 can uniformly polish the peripheral edge of the workpiece W.
- FIG. 6 is a plan view showing a chemical mechanical polishing apparatus provided with a plurality of polishing heads 1. As shown in FIG. 6, a plurality of polishing heads 1 may be arranged along the circumferential direction of the polishing pad 2. The plurality of polishing liquid supply nozzles 5 are disposed adjacent to the plurality of polishing heads 1, respectively.
- a polishing state monitoring device that monitors the polishing state of the peripheral edge of the workpiece W may be provided.
- a surface state monitoring device 32 that monitors the surface state of the peripheral edge of the workpiece W held by the workpiece holding unit 11 is provided as a polishing state monitoring device.
- a camera for photographing the peripheral edge of the workpiece W for example, a digital camera equipped with an image sensor such as a CCD
- a photometer is used.
- the surface state monitoring device 32 digitizes the surface state of the peripheral portion of the workpiece W and sends the obtained numerical value to the operation control unit 25. For example, the surface state monitoring device 32 acquires the surface color of the workpiece W, the unevenness, and the intensity of reflected light as numerical values. In order to easily detect a change in color, the surface of the peripheral portion of the workpiece W may be coated in advance.
- the operation control unit 25 determines the polishing end point of the workpiece W based on the numerical value sent from the surface state monitoring device 32 (that is, the surface state of the peripheral portion of the workpiece W).
- a motor ammeter 33 for monitoring the current supplied to the table motor 18 that rotates the polishing table 3 is provided as a polishing state monitoring device.
- the motor ammeter 33 measures the current flowing through the table motor 18 and sends the measured value to the operation control unit 25.
- the operation control unit 25 determines the polishing end point of the workpiece W based on the measured value of the current sent from the motor ammeter 33 (that is, the surface state of the peripheral portion of the workpiece W).
- FIG. 9 is a side view showing a chemical mechanical polishing apparatus according to still another embodiment
- FIG. 10 is a plan view of the chemical mechanical polishing apparatus shown in FIG.
- an annular polishing pad 2 is used.
- the annular polishing surface 2 a is formed from the inner peripheral surface of the annular polishing pad 2.
- the annular polishing surface 2a has a longitudinal section curved outward.
- the polishing liquid is supplied to a region inside the annular polishing surface 2a and flows outward by centrifugal force to reach the annular polishing surface 2a. Since the annular polishing pad 2 can easily hold the polishing liquid on the annular polishing surface 2a, the amount of the polishing liquid used can be reduced.
- FIG. 11 is a side view showing a chemical mechanical polishing apparatus according to still another embodiment
- FIG. 12 is a plan view of the chemical mechanical polishing apparatus shown in FIG.
- the air cylinder 14 is disposed on the inner side of the workpiece holding portion 11 (preferably along the radial inner side of the workpiece holding portion 11) in the radial direction of the polishing table 3 (and the polishing pad 2).
- the air cylinder 14 is positioned above the polishing table 3 and the polishing pad 2, but may be positioned below the polishing table 3 and the polishing pad 2.
- the air cylinder 14 presses the peripheral edge of the workpiece W against the annular polishing surface 2 a by moving the servo motor 15, the workpiece holding unit 11, and the workpiece W toward the center of the polishing pad 2.
- FIG. 13 is a plan view showing an embodiment of a chemical mechanical polishing apparatus provided with a plurality of polishing heads 1 shown in FIGS. Since the air cylinders 14 of the respective polishing heads 1 are located inside the polishing table 3 and the polishing pad 2, as can be seen from FIG. 13, the overall width of the chemical mechanical polishing apparatus can be reduced.
- the entire workpiece W has a rectangular shape, and its peripheral edge has a longitudinal section curved outward.
- the chemical mechanical polishing apparatus according to the above-described embodiment can be used not only for polishing polygonal workpieces, but also for polishing circular workpieces as a whole.
- the present invention can be applied to a chemical mechanical polishing (CMP) apparatus for polishing a workpiece such as a metal housing to a mirror finish.
- CMP chemical mechanical polishing
Abstract
Description
本発明の好ましい態様は、前記研磨パッドは、環状の形状を有しており、前記環状研磨面は前記研磨パッドの内周面から形成されていることを特徴とする。
2 研磨パッド
2a 環状研磨面
3 研磨テーブル
5 研磨液供給ノズル
11 ワークピース保持部
14 エアシリンダ
15 サーボモータ
18 テーブルモータ
20 リニアガイド
25 動作制御部
27 ベース
29 位置決め機構
32 表面状態監視装置
33 モータ電流計
W ワークピース
Claims (3)
- 多角形状を有したワークピースを研磨するための化学機械研磨装置であって、
湾曲した縦断面を有する環状研磨面を有する研磨パッドと、
前記研磨パッドを支持する回転可能な研磨テーブルと、
前記ワークピースを保持するワークピース保持部と、
前記ワークピース保持部を前記ワークピースの軸心まわりに回転させる回転装置と、
前記ワークピースの周縁部を前記環状研磨面に押し付ける押圧装置と、
前記環状研磨面に研磨液を供給する研磨液供給ノズルと、
前記ワークピースの回転角度に従って、前記回転装置が前記ワークピースを回転させる速度を変化させる動作制御部とを備え、
前記押圧装置は、前記研磨テーブルの半径方向において、前記ワークピース保持部よりも内側に配置されていることを特徴とする化学機械研磨装置。 - 前記ワークピースの周縁部の研磨状態を監視する研磨状態監視装置をさらに備えたことを特徴とする請求項1に記載の化学機械研磨装置。
- 前記研磨パッドは、環状の形状を有しており、
前記環状研磨面は前記研磨パッドの内周面から形成されていることを特徴とする請求項1に記載の化学機械研磨装置。
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CN201580058353.XA CN107073674B (zh) | 2014-10-31 | 2015-10-30 | 用于对工件进行研磨的化学机械研磨装置 |
JP2016556681A JP6532884B2 (ja) | 2014-10-31 | 2015-10-30 | ワークピースを研磨するための化学機械研磨装置 |
US15/520,515 US20170312880A1 (en) | 2014-10-31 | 2015-10-30 | Chemical mechanical polishing apparatus for polishing workpiece |
US16/412,562 US11446784B2 (en) | 2014-10-31 | 2019-05-15 | Chemical mechanical polishing apparatus for polishing workpiece |
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JP2014223292 | 2014-10-31 | ||
JP2014-223292 | 2014-10-31 |
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US15/520,515 A-371-Of-International US20170312880A1 (en) | 2014-10-31 | 2015-10-30 | Chemical mechanical polishing apparatus for polishing workpiece |
US16/412,562 Continuation US11446784B2 (en) | 2014-10-31 | 2019-05-15 | Chemical mechanical polishing apparatus for polishing workpiece |
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WO2019044489A1 (ja) * | 2017-08-28 | 2019-03-07 | キヤノン株式会社 | 駆動装置および撮像装置の制御方法 |
JP6713015B2 (ja) * | 2018-04-13 | 2020-06-24 | 株式会社大気社 | 自動研磨システム |
FR3137857A1 (fr) * | 2022-07-18 | 2024-01-19 | Safran Aircraft Engines Mexico Sa De C.V. | Système pour le taillage d’électrode |
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- 2015-10-30 WO PCT/JP2015/080823 patent/WO2016068327A1/ja active Application Filing
- 2015-10-30 US US15/520,515 patent/US20170312880A1/en not_active Abandoned
- 2015-10-30 CN CN201580058353.XA patent/CN107073674B/zh active Active
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2019
- 2019-05-15 US US16/412,562 patent/US11446784B2/en active Active
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Also Published As
Publication number | Publication date |
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JPWO2016068327A1 (ja) | 2017-08-17 |
JP6532884B2 (ja) | 2019-06-19 |
US20170312880A1 (en) | 2017-11-02 |
CN107073674B (zh) | 2020-01-21 |
US11446784B2 (en) | 2022-09-20 |
CN107073674A (zh) | 2017-08-18 |
US20190262968A1 (en) | 2019-08-29 |
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