US20140179204A1 - Dresser - Google Patents
Dresser Download PDFInfo
- Publication number
- US20140179204A1 US20140179204A1 US14/032,773 US201314032773A US2014179204A1 US 20140179204 A1 US20140179204 A1 US 20140179204A1 US 201314032773 A US201314032773 A US 201314032773A US 2014179204 A1 US2014179204 A1 US 2014179204A1
- Authority
- US
- United States
- Prior art keywords
- dresser
- magnets
- disk
- attachment
- disk holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000005498 polishing Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 description 8
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000006061 abrasive grain Substances 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 description 3
- 230000003252 repetitive effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- -1 SUS630 Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- 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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
Definitions
- the present invention relates to a dresser for dressing (or conditioning) a polishing pad of a polishing apparatus which is typified by a CMP (Chemical Mechanical Polishing) apparatus.
- CMP Chemical Mechanical Polishing
- a CMP apparatus for use in semiconductor fabrication is an apparatus for polishing a water.
- This CAP apparatus is configured to polish a surface of a wafer by bringing the wafer into sliding contact with a polishing pad while supplying a polishing liquid onto the polishing pad.
- a dresser is typically used to restore a surface of the polishing pad by slightly scraping away the surface of the polishing pad.
- the dresser has a dresser disk for dressing a polishing surface of a polishing pad.
- This dresser disk has a pad contacting surface constituted by diamond abrasive grains, which are placed in sliding contact with the surface of the polishing pad to thereby scrape the polishing pad.
- the dresser disk itself is made of any of various materials including a corrosion-resistant nonmagnetic material such as SU316, a corrosion-resistant magnetic material such as SUS630, and a resin such as polycarbonate.
- a brush dresser having an implanted brush, instead of the diamond abrasive grains, may be used.
- the dresser disk and the brush dresser are consumables, and are therefore inspected and replaced regularly.
- the dresser disk may be made of a magnetic material. This is for the reason that a disk holder, which is for holding the dresser disk and having magnets embedded therein, can hold the dresser via a magnetic force. Such a removable structure using the magnetic force is very convenient because it requires no tools ibr replacing the dresser disk.
- a first aspect of the present invention provides a dresser for dressing a polishing pad, comprising: an attachment secured to a dresser shaft for rotating the dresser; a disk holder removably attached to the attachment by a magnetic force; and a dresser disk. removably attached to the disk holder, the dresser disk having a dressing surface, wherein each of the attachment and the disk holder has magnet for generating the magnetic force.
- the plurality of magnets constitute a plurality of groups arranged at equal intervals around the center of the dresser, each of the groups includes at least three magnets arrayed such that north pole and south pole. alternate with each other, and an arrangement of the at least three magnets is the same in all of the plurality of groups.
- the dresser disk is removably attached to the disk holder.
- a second aspect of the present invention provides a dresser for dressing a polishing pad, comprising: an attachment secured to a dresser shaft for rotating the dresser; and a brush disk removably attached to the attachment by a magnetic forces, the brush disk having a dressing surface, wherein each of the attachment and the brush disk has magnet for generating the magnetic force.
- the magnet comprises a plurality of magnets arranged around a center of the dresser, and an arrangement of the plurality of magnets are such that magnetic poles of adjacent: two of the magnets are different from each other.
- the plurality of magnets constitute a plurality of groups arranged at equal intervals around the center of the dresser, each of the groups includes at least three magnets arrayed such that north pole and south pole alternate with each other, and an arrangement of the at least three magnets is the same in all of the plurality of groups.
- the attachment is removably secured to the dresser shaft.
- the attachment and the brush disk are simply attracted to each other only by the magnetic force. Therefore, the brush disk can be removed from the attachment relatively easily by hand.
- FIG. 1 is a perspective view of a dressing apparatus having a dresser
- FIG. 2 is a cross-sectional view of the dresser
- FIG. 3 is a plan view of an attachment
- FIG. 4 is a bottom view of the attachment
- FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3 ;
- FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5 ;
- FIG. 7 is a plan view of a disk holder
- FIG. 9 is a bottom view of the disk holder
- FIG. 10 is a cross-sectional view taken along line D-D of FIG. 9 ;
- FIG. 11 is a cross-sectional view of a dresser according to another embodiment.
- FIG. 12 is a cross-sectional view of a dresser according to still another embodiment
- FIG. 13 is a plan view of a brush disk
- FIG. 14 is a cross-sectional view taken along line E-E of FIG. 13 ;
- FIG. 15 is a bottom view of the brush disk.
- FIG. 16 is a cross-sectional view taken along line F-F of FIG. 15 .
- FIGS. 1 through 16 identical elements are denoted by identical reference numerals, and repetitive descriptions thereof are omitted.
- FIG. 1 is a perspective view of a dressing apparatus having a dresser for dressing (or conditioning) a polishing pad.
- a polishing pad 2 for use in polishing of a substrate such as a wafer
- the polishing pad 2 is rotated in unison with the polishing table 1 by a table motor 7 , which is coupled to the polishing table 1 .
- the wafer is polished by being pressed against the rotating polishing pad 2 .
- a dressing apparatus 9 includes a dresser 10 which is brought into sliding contact with the polishing pad 2 , a dresser shaft 13 to which the dresser 10 is coupled, a pneumatic cylinder 16 mounted to an upper end of the dresser shaft 13 , and a dresser arm 17 for rotatably supporting the dresser shaft 13 .
- the dresser 10 has a lower surface serving as a dressing surface 10 a that is formed by abrasive grains (e.g., diamond particles).
- the pneumatic cylinder 16 is disposed on a support base 20 which is supported by columns 19 . These columns 19 are fixedly mounted to the dresser arm 17 .
- the dresser arm 17 is actuated by a motor (not shown) to pivot on a pivot shaft 22 .
- the dresser shaft 13 is rotated about its own axis by a motor (not shown), thus rotating the dresser 10 about the dresser shaft 13 in a direction indicated by arrow.
- the pneumatic cylinder 16 serves as an actuator for moving the dresser 10 vertically through the dresser shaft 13 and for pressing the dresser 10 against the surface of the polishing pad 2 at a predetermined force.
- Dressing of the polishing pad 2 is performed as follows.
- the dresser 10 is rotated about the dresser shaft 13 , and at the same time pure water is supplied from a pure water supply nozzle (not shown) onto the polishing pad 2 .
- the dresser 10 is pressed against the polishing pad 2 by the pneumatic cylinder 16 to place the dressing surface 10 a in sliding contact with the polishing pad 2 .
- the dresser arm 17 pivots around the pivot shaft 22 to cause the dresser 10 to oscillate in a radial direction of the polishing pad 2 . In this manner, the dresser 10 scrapes the polishing pad 2 to thereby dress (i.e., restore) the surface of the polishing pad 2 .
- FIG. 2 is a cross-sectional view of the dresser 10 .
- the dresser 10 includes an attachment 30 secured to the dresser shaft 30 , a disk holder 50 removably mounted to the attachment 30 by a magnetic force, and a dresser disk 70 removably mounted to the disk holder 50 .
- the attachment 30 is removably secured to the lower end of the dresser shaft 13 by screws 31 .
- FIG. 3 is a plan view of the attachment 30 .
- FIG. 4 is a bottom view of the attachment 30 .
- FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3 .
- FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5 .
- the attachment 30 has an annular flange 32 and a cylindrical protrusion 33 .
- the protrusion 33 is located at a center of the flange 32 and projects downwardly.
- the flange 32 has through-holes 32 a formed therein into which the screws 31 are inserted.
- a plurality of magnets 35 are embedded in the flange 32 . These magnets 35 are arranged around the center of the dresser 10 . in the example shown in FIG. 3 , twelve magnets 35 are provided. The magnets 35 are arrayed such that magnetic poles of adjacent two of the magnets 35 are different from each other.
- FIG. 3 shows one example of the array of the magnets 35 , and the present invention is not limited to this example shown in FIG. 3 .
- the magnets 35 constitute a plurality of (four in FIG. 3 ) groups 36 , which are arranged at equal intervals around the center of the dresser 10 . These groups 36 are spaced by a predetermined distance, with the through-hole 32 a located between the adjacent groups 36 .
- Each of the groups 36 is constituted by three magnets 35 that are arranged such that south pole and north pole alternate with each other. In the example shown in FIG. 3 , the magnets 35 of each group 36 are arrayed in the order of south pole, north pole, and south pole. The magnets 35 of each of the groups 36 are arrayed in the same order.
- each of all the groups 36 is constituted by three magnets 35 that are arrayed in the order of south pole, north pole, and south pole.
- the present invention is not limited to this magnet arrangement.
- Each of the groups 36 may he constituted by more than three magnets 35 .
- the magnet 35 may preferably he neodymium magnet.
- FIG. 7 is a plan view of the disk holder 50 .
- FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7
- FIG. 9 is a bottom view of the disk holder 50 .
- FIG. 10 is a cross-sectional view taken along line D-D of FIG. 9 .
- the disk holder 50 is a disk-shaped member that is larger in diameter than the attachment 30 .
- the disk holder 50 has two circular recesses 51 , 52 formed centrally in an upper surface of the disk holder 50 .
- the recesses 51 , 52 form a stepped structure.
- the flange 32 of the attachment 30 is housed in the first-stage recess 51 ., while the protrusion 33 of the attachment 30 is housed in the second-stage recess 52 .
- the recess 51 has a bottom surface with holes 54 formed therein for receiving respective heads of the screws 31 .
- a plurality of magnets 56 are embedded in the disk holder 50 . These magnets 56 are arranged around the center of the dresser 10 . In the example shown in FIG. 9 twelve magnets 56 are provided. These magnets 56 are arrayed such that magnetic poles of adjacent two of the magnets 56 are different from each other.
- FIG. 9 shows one example of the array of the magnets 56 , and the present invention is not limited to this example shown in FIG. 9 .
- the magnets 56 constitute a plurality of (four in FIG. 9 ) groups 57 , which are arranged at equal intervals around the center of the dresser 10 .
- the groups 57 are spaced by a predetermined distance.
- Each of the groups 57 is constituted by three magnets 56 that are arrayed such that south pole and north pole alternate with each other.
- the magnets 56 of each group 57 are arrayed in the order of north pole, south pole, and north pole.
- the magnets 56 of each of the groups 57 are arrayed in the same order.
- each of all the groups 57 is constituted by three magnets 56 arrayed in the order of north pole, south pole, and north pole.
- the present invention is not limited to this magnet arrangement.
- Each of the groups 57 may be constituted by more than three magnets 56 .
- the magnets 56 are located so as to face the magnets 35 of the attachment 30 , thus attracting these magnets 35 . Therefore, the disk holder 50 is removably attached to the attachment 30 by a magnetic force (i.e., an attractive force) generated between the magnets 35 , 56 .
- the magnets 56 may preferably he neodymium magnets.
- the groups 36 are arranged at equal intervals in the circumferential direction. It is preferable to provide a clearance as large as at least one pitch of the array of the magnets 35 between. the adjacent groups 36 , as shown in FIG. 3 , so that the south pole of one group 36 is not close to the south pole of the other group 36 . If the south pole of one group 36 is located close to the south pole of the other group 36 , an attractive force may be generated between the north pole of the magnet 56 and the south.
- the magnets 35 of each group 36 are arranged in the order of the south pole, the north pole, and the south pole, but may be arranged in the order of the north pole, the south pole, and the north pole.
- the magnets 56 of each group 57 of the disk holder 50 are arranged in the order of the south pole, the north pole, and the south pole.
- a plurality of magnets 58 are embedded in a peripheral portion of the disk holder 50 . These magnets 58 serve to secure the dresser disk 70 to the disk holder 50 .
- the dresser disk 70 in this embodiment is made of a magnetic material, and is removably attached to the disk holder 50 by a magnetic force of the magnets 58 .
- the dresser disk 70 has an annular lower surface with diamond abrasive grains fixed thereto. These diamond abrasive grains provide the dressing surface 10 a in an annular shape.
- the dresser 10 dresses (or conditions) the polishing pad 2 with this dressing surface 10 a.
- the dresser 10 in its entirety is rotated about the dresser shaft 13 , and presses the dressing surface 10 a of the dresser disk 70 against the polishing pad 2 .
- a plurality of (two in the drawings) pins 60 are secured to the lower surface of the disk holder 50 . These pins 60 are inserted in recesses 71 (see FIG. 2 ) formed in the upper surface of the dresser disk. 70 .
- the pins 60 that engage with the recesses 71 can prevent the dresser disk 70 from rotating relative to the disk holder 50 when the dresser disk 70 is dressing the polishing pad 2 .
- the attachment 30 and the disk holder 50 are simply attracted to each other by the magnetic force. Therefore, when replacing the dresser 10 , the disk holder 50 , together with the dresser disk 70 , can be removed from the attachment 30 relatively easily by hand. While the dresser disk 70 is made of a magnetic material in the above-discussed example, the present invention, can also be applied to a dresser 10 having a dresser disk 70 made of a nonmagnetic material,
- FIG. 11 is a cross-sectional view of a dresser 10 according to another embodiment.
- a dresser disk 70 of this embodiment is made of a nonmagnetic material.
- the dresser disk 70 is secured to the disk holder 50 by a plurality of screws 73 . By removing these screws 73 , the dresser disk 70 can be separated from the disk holder 50 .
- Other structural details are the same as those of the above embodiment, and their repetitive descriptions are omitted.
- FIG. 12 is a cross-sectional view of a dresser 10 according to still another embodiment.
- the dresser 10 of this embodiment is a brush. dresser having a dressing surface 10 a constituted by a brush. Structural details of this embodiment which will not be described particularly are the same as those of the above embodiment, and their repetitive descriptions are omitted.
- the dresser 10 shown in FIG 12 does not have the dresser disk 70 , but has a brush disk 80 instead.
- This brush disk 80 has a structure similar to the disk holder 50 in the above-discussed embodiment.
- FIG. 13 is a plan view of the brush disk 80 .
- FIG. 14 is a cross-sectional view taken along line E-E of FIG. 13 .
- FIG. 15 is a bottom view of the brush disk 80 .
- FIG. 16 is a cross-sectional view taken along line F-F of FIG. 15 .
- the brush disk 80 has two circular recesses 81 , 82 formed centrally in an upper surface thereof.
- the recesses 81 , 82 form a stepped. structure.
- the flange 32 of the attachment 30 is housed in the first-stage recess 81 , while the protrusion 33 of the attachment 30 is housed in the second-stage recess 82 .
- the recess 81 has a bottom surface with holes 84 formed therein for receiving the respective heads of the screws 31 .
- the brush disk 80 has a lower surface with a brush (not shown) implanted thereon. This brush provides the dressing surface 10 a.
- a plurality of magnets 86 are embedded in the brush disk 80 . These magnets 86 are arranged around the center of the dresser 10 . In the example shown in FIG. 15 , twelve magnets 86 are provided. The magnets 86 are arrayed such that magnetic poles of adjacent two of the magnets 86 are different from each other. FIG. 15 shows one example of the array of the magnets 86 , and the present invention is not limited to the example shown in FIG. 15 . In FIG. 15 , the magnets 86 constitute a plurality of (four in FIG. 15 ) groups 87 that are arranged at equal intervals around the center of the dresser 10 . The groups 87 are spaced by a predetermined distance.
- This distance corresponds to at least one pitch of the array of the magnets 86 .
- the arrangement of the magnets 86 in each group 87 is the same as the arrangement of the magnets 56 shown in FIG. 9 .
- the magnets 86 are located so as to face the magnets 35 of the attachment 30 , thus attracting the magnets 35 . Therefore, the brush holder 80 is removably attached to the attachment 30 by the magnetic force i.e., the attractive force) generated between the magnets 35 , 86 .
- the magnets 86 may preferably be neodymium magnets.
- the dresser 10 dresses the polishing pad 2 by placing the dressing surface 10 a, which is constituted by the brush, in sliding contact with the polishing pad 2 .
- the attachment 30 and the brush disk 80 are simply attracted to each other by the magnetic force. Therefore, when replacing the dresser 10 , the brush disk 80 can be removed from the attachment 30 relatively easily by hand.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-219304 | 2012-10-01 | ||
JP2012219304A JP5919157B2 (ja) | 2012-10-01 | 2012-10-01 | ドレッサー |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140179204A1 true US20140179204A1 (en) | 2014-06-26 |
Family
ID=50400732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/032,773 Abandoned US20140179204A1 (en) | 2012-10-01 | 2013-09-20 | Dresser |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140179204A1 (ja) |
JP (1) | JP5919157B2 (ja) |
KR (1) | KR20140043284A (ja) |
CN (1) | CN103707193B (ja) |
TW (1) | TWI602227B (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150065019A1 (en) * | 2013-08-29 | 2015-03-05 | Ebara Corporation | Dressing device, chemical mechanical polishing apparatus including the same, and dresser disc used in the same |
US20160256976A1 (en) * | 2015-01-30 | 2016-09-08 | Ebara Corporation | Coupling mechanism, substrate polishing apparatus, method of determining position of rotational center of coupling mechanism, program of determining position of rotational center of coupling mechanism, method of determining maximum pressing load of rotating body, and program of determining maximum pressing load of rotating body |
USD793459S1 (en) * | 2015-11-30 | 2017-08-01 | Nawoo Precision & Industry Co., Ltd. | Chip cover for tip dresser |
US20180047572A1 (en) * | 2016-08-12 | 2018-02-15 | Ebara Corporation | Dressing device, polishing apparatus, holder, housing and dressing method |
US20200324387A1 (en) * | 2019-04-15 | 2020-10-15 | Disco Corporation | Dressing tool |
CN114571365A (zh) * | 2022-01-20 | 2022-06-03 | 上海汉虹精密机械有限公司 | 一种抛光盘表面修整装置 |
US20220199396A1 (en) * | 2020-12-18 | 2022-06-23 | Applied Materials, Inc. | Pad carrier for horizontal pre-clean module |
US20220234165A1 (en) * | 2021-01-27 | 2022-07-28 | Taiwan Semiconductor Manufacturing Company Limited | Chemical mechanical polishing apparatus using a magnetically coupled pad conditioning disk |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106181603B (zh) * | 2016-08-30 | 2018-05-01 | 拓卡奔马机电科技有限公司 | 裁床用磨刀砂轮装置 |
CN107671725B (zh) * | 2017-10-20 | 2019-08-06 | 德淮半导体有限公司 | 修整盘***、化学机械研磨装置及研磨方法 |
US20200130139A1 (en) * | 2018-10-31 | 2020-04-30 | Taiwan Semiconductor Manufacturing Co., Ltd. | Device for conditioning chemical mechanical polishing |
CN116372801A (zh) * | 2023-04-12 | 2023-07-04 | 华海清科股份有限公司 | 一种承载组件和化学机械抛光*** |
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US4222204A (en) * | 1979-06-18 | 1980-09-16 | Benner Robert L | Holder for an abrasive plate |
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JP2002307308A (ja) * | 2001-04-12 | 2002-10-23 | Fujimori Gijutsu Kenkyusho:Kk | ケミカルマシンポリッシャの研磨盤用研磨ドレッサ |
DE602008002445D1 (de) * | 2007-01-30 | 2010-10-28 | Ebara Corp | Poliervorrichtung |
-
2012
- 2012-10-01 JP JP2012219304A patent/JP5919157B2/ja active Active
-
2013
- 2013-09-20 US US14/032,773 patent/US20140179204A1/en not_active Abandoned
- 2013-09-27 TW TW102135065A patent/TWI602227B/zh active
- 2013-09-27 KR KR1020130115094A patent/KR20140043284A/ko not_active Application Discontinuation
- 2013-09-30 CN CN201310461262.3A patent/CN103707193B/zh active Active
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US4664572A (en) * | 1985-04-03 | 1987-05-12 | Mitsubishi Jukogyo Kabushiki Kaisha | Chip disposer |
JPS63253855A (ja) * | 1987-04-06 | 1988-10-20 | Daido Steel Co Ltd | 磁気カツプリング |
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US5667433A (en) * | 1995-06-07 | 1997-09-16 | Lsi Logic Corporation | Keyed end effector for CMP pad conditioner |
US6036583A (en) * | 1997-07-11 | 2000-03-14 | Applied Materials, Inc. | Conditioner head in a substrate polisher and method |
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Also Published As
Publication number | Publication date |
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JP2014069299A (ja) | 2014-04-21 |
JP5919157B2 (ja) | 2016-05-18 |
TWI602227B (zh) | 2017-10-11 |
KR20140043284A (ko) | 2014-04-09 |
CN103707193A (zh) | 2014-04-09 |
CN103707193B (zh) | 2017-09-15 |
TW201426835A (zh) | 2014-07-01 |
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