WO2008013330A1 - Platen driving system of chemical mechanical polishing equipment for wafer - Google Patents
Platen driving system of chemical mechanical polishing equipment for wafer Download PDFInfo
- Publication number
- WO2008013330A1 WO2008013330A1 PCT/KR2006/002971 KR2006002971W WO2008013330A1 WO 2008013330 A1 WO2008013330 A1 WO 2008013330A1 KR 2006002971 W KR2006002971 W KR 2006002971W WO 2008013330 A1 WO2008013330 A1 WO 2008013330A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driving shaft
- wafer
- moving plate
- plate
- driving
- Prior art date
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 85
- 239000000126 substance Substances 0.000 title claims abstract description 30
- 230000010355 oscillation Effects 0.000 claims abstract description 55
- 238000005406 washing Methods 0.000 claims abstract description 28
- 239000012535 impurity Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000007517 polishing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction 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
- 238000005137 deposition process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68764—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a movable susceptor, stage or support, others than those only rotating on their own vertical axis, e.g. susceptors on a rotating caroussel
-
- 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
- B24B37/105—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement
- B24B37/107—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for single side lapping the workpieces or work carriers being actively moved by a drive, e.g. in a combined rotary and translatory movement in a rotary movement only, about an axis being stationary during 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Definitions
- the present invention relates generally to a platen driving system of chemical mechanical polishing equipment for wafer, and more particularly to a platen driving system of chemical mechanical polishing equipment for wafer which is capable of oscillation movement and rotational movement in parallel so as to allow oscillation movement of polishing pad when polishing of wafer surface and rotational movement of polishing pad when washing of polishing pad as well.
- semiconductor wafer manufacturing process consists of a plurality of processes including ion injection process, film deposition process, diffusion process, photo process, surface polishing process, washing process, and the like to form multi layers of semiconductor diode on surface of wafer made from silicon as its main raw material.
- CMP chemical mechanical polishing
- This kind of prior-art chemical mechanical polishing equipment for wafer as illustrated in FIG. 1 has a configuration which is furnished with a platen 3 attached thereon by a polishing pad 2, and with a wafer rotating device 4 installed beyond said polishing pad 2 for rotating and/or revolving the wafer 1 which is in contact with the polishing pad 2, wherein said wafer rotating device 4 has a configuration which is furnished with a carrier 5 to rotate the wafer 1 as held and attached thereto and with a spindle 6 to revolve said carrier 5. Therefore, in traditional type of wafer surface polishing equipment
- This kind of traditional fixed-type platen 3 as illustrated in FIG. 1 is however installed fixedly against ground so that polishing pad 2 should not move while wafer 1 rotates and revolves by wafer rotating equipment 4. So if there occurs any uneven part at a portion of the polishing pad 2 by prominences or impurities adhered, scratches incurred by the prominences or impurities during wafer polishing process will concentrate on wafer 1 at a particular place of wafer surface so as to increase damage of the wafer 1. Such damaged portion happening repeatedly will result in 1 frequent production of bad-quality wafer.
- an oscillation-type platen driving equipment 110 as illustrated in FIG. 2 was developed and suggested later as a prior art technology, wherein cam groove 7 is formed at lower plane of said platen 3.
- cam 8 can rotate eccentrically because it is in combination with a driving motor 9 on one hand and gets inserted in said cam groove 7 on the other hand, which enables said platen 3 to oscillate (vibrate) back-and-forth left-and-right by virtue of rotational movement of said cam 8.
- said platen 3 can not rotate by itself regrettably, but can only move and change its position on a predetermined circular orbit. Moreover, said platen 3 can not rotate either when said polishing pad 2 is to be washed by use of washing slurry spray nozzle 12, which means said platen 3 cannot produce centrifugal force, thereby it is difficult to eliminate impurities from said polishing pad 2, so it takes longer time for washing.
- a rotation-type platen driving equipment 120 according to a prior art was developed and suggested as illustrated in FIG. 3, wherein center of platen 3 is concentrically combined to rotational shaft 11 of driving motor 10; it is possible in washing process thereof to wash said polishing pad 2 with washing slurry spray nozzle 12 by use of centrifugal force produced at high-speed rotating of said platen. Therefore with this kind of platen driving equipment, elimination of impurities from said polishing pad
- the present invention was contrived to alleviate or solve above- mentioned problems and/or drawbacks. It is an object of the present invention therefore to provide a platen driving system of chemical mechanical polishing equipment for wafer, wherein the platen can perform selectively either oscillation movement when polishing of wafer or high- speed rotational movement when washing of polishing pad, which can thereby prevent from occurrence of bad-quality wafer, and increase at the same time efficiencies both in washing of polishing pad and in removal of impurities so as to reduce washing time remarkably.
- a platen driving system of chemical mechanical polishing equipment for wafer comprises: a moving plate furnished thereon with a polishing pad, the moving plate being installed in such a manner that said moving plate is capable of performing selectively either oscillation movement or rotational movement; a middle supporting plate installed concentrically under and spaced-apart from said moving plate; a driving shaft installed at center of said middle supporting plate in such a manner that said driving shaft is capable of moving up and down; a cam member inserted at upper side of said driving shaft, the cam member being installed in such a manner that said cam member should get combined by cam with said moving plate when said driving shaft is at up-position; a driving shaft lift means which can take up said driving shaft when polishing of wafer so that said cam member should get combined by cam with said moving plate and take down said driving shaft when washing of polishing pad so that said driving shaft should get joined with said middle supporting plate; a driving shaft rotating means to rotate said driving shaft; an oscillation guide means installed between said moving plate and middle
- said cam member should correspond to a cam groove member which is formed at lower plane of said moving plate, and be installed eccentrically to rotational center of said driving shaft so that the moving plate should be able to do oscillation(vibration) movement;
- said driving shaft should be formed at its periphery with a plurality of protruding parts;
- said middle supporting plate should be formed at its center with a groove member to be joined with said protruding parts so that said protruding parts of said driving shaft should get inserted into said groove of said middle supporting plate when said driving shaft is at down-position.
- said driving shaft lift means might comprise: a lift motor; a ball screw to be rotated by driving of said lift motor; a lift plate inserted at periphery of said ball screw to move up and down as said ball screw rotates; and a connection plate located at upper side of said lift plate for transferring up-and-down motion of said lift plate to the driving shaft.
- said driving shaft rotating means should comprise: an oscillation/rotation motor installed at said lift plate; a driving pulley to be driven by driving of said oscillation/rotation motor; a driven pulley to be driven by driving of said driving pulley; and a connection plate which is to be rotated by driving of said driven pulley in order to rotate the driving shaft located at upper side.
- said oscillation guide means should comprise a dual-axis oscillation guide member consisting of X-axis guide which is combined to said moving plate so that oscillation of said moving plate should follow circular path, and Y-axis guide which is combined to said X-axis guide and fixed at said middle supporting plate.
- said rotation supporting means should comprise: a centering housing fixedly combined at upper side of said driving shaft; a plurality of rollers in contact with periphery of said centering housing; and a centering guide bracket of which one side is combined with said roller and the other side is fixedly combined with lower part of said moving plate.
- one side of said middle supporting plate might be further furnished with a carriage to guide up-and-down motion of said middle supporting plate, and with a stopper to limit the lowest position of said carriage.
- the platen can perform either oscillation movement when polishing of wafer or rotational movement when washing of polishing pad, thereby it is possible to prevent from occurrence of bad-quality wafer, to raise at the same time efficiencies both in washing of polishing pad and in removal of impurities, and to reduce washing time remarkably as well.
- FIG. 1 is perspective view illustrating chemical mechanical polishing equipment for wafer (fixed-platen type) according to a traditional embodiment
- FIG. 2 is side sectional view illustrating chemical mechanical polishing equipment for wafer (oscillating-platen type) according to another traditional embodiment
- FIG. 3 is side sectional view illustrating chemical mechanical polishing equipment for wafer (rotating-platen type) according to another traditional embodiment
- FIG. 4 is side sectional view illustrating a platen driving system of chemical mechanical polishing equipment for wafer according to present invention
- FIG. 5 is top view showing the status when the moving plate in FIG. 4 has been removed
- FIG. 6 is an explanatory drawing to show the driving shaft lift means of a platen driving system of chemical mechanical polishing equipment for wafer according to present invention
- FIG. 7 is perspective view of the driving shaft of a platen driving system of chemical mechanical polishing equipment for wafer according to present invention
- FIG. 8 is side sectional view showing up-position of driving shaft (oscillating-platen mode) in the platen driving system of chemical mechanical polishing equipment for wafer of FIG. 4;
- FIG. 9 is side sectional view showing middle-position of driving shaft (standby-platen mode) in the platen driving system of chemical mechanical polishing equipment for wafer of FIG. 4;
- FIG. 10 is side sectional view showing down-position of driving shaft (rotating-platen mode) in the platen driving system of chemical mechanical polishing equipment for wafer of FIG. 4;
- FIG. 11 is perspective view showing the status when the moving plate of FIG. 4 has been removed. Best Mode for Carrying Out the Invention
- the platen driving system of chemical mechanical polishing equipment for wafer comprises, as illustrated in FIG. 4, a moving plate 20, a middle supporting plate 22, a driving shaft 25, a cam member 24, a driving shaft lift means 30, a driving shaft rotating means 40, an oscillation guide means 50, and a rotation supporting means 60.
- the moving plate 20 mentioned above is furnished thereon with a polishing pad 21 , and installed in such a manner that its oscillation movement and rotational movement each are possible; as illustrated in FIG. 8, it does oscillation movement when polishing of wafer so that scratches of wafer should be prevented from gathering at one place; as illustrated in FIG. 10, it does rotational movement when washing of polishing pad so that impurities should be removed by use of centrifugal force.
- oscillation used in this specification means a circular orbital movement without any phase change.
- Said middle supporting plate 22 is installed concentrically under and spaced-apart from said moving plate 20, and is formed at its center with a groove member 22a whereto the protruding parts 25a of driving shaft 25 (to be described later in this specification) get inserted.
- Said driving shaft 25 is installed at center of said middle supporting plate 22 in such a manner that said driving shaft 25 can move up and down. Referring to FIGS. 5 and 7, said driving shaft 25 is formed at its periphery with a plurality of protruding parts 25a; referring to FIG. 10, these protruding parts 25a get inserted to and combined with the groove member 22a of said middle supporting plate 22 when said driving shaft 25 is at down-position.
- Said driving shaft lift means 30, which comprises a lift motor 31, a ball screw 32, a lift plate 33 and a connection plate 45, can take up said driving shaft 25 when polishing of wafer so that said cam member 24 should get combined by cam with said moving plate 20, and take down said driving shaft 25 when washing of polishing pad so that said driving shaft 25 should get joined with said middle supporting plate 22.
- Said ball screw 32 is rotated by driving of the lift motor 31 installed at base 54. As said ball screw 32 rotates, the nut 34 combined by screw at periphery of said ball screw 32 moves up and down. Referring to FIG. 6, said ball screw 32 can transfer power from said lift motor 31 through coupling 37 and speed reducer 36.
- Said lift plate 33 is inserted at periphery of said ball screw 32, and combined fixedly with the nut 34 that moves up and down when said ball screw 32 rotates, so said lift plate 33 moves up and down together with the motion of said nut 34.
- Said lift plate 33 may further achieve a stable up-and-down motion when it is allowed to move up and down along a guide rod 39 that is fixedly installed at base 54.
- Said connection plate 45 is located at upper side of said lift plate 33 and transfers up-and-down motion of said lift plate 33 to driving shaft 25.
- said driving shaft rotation means 40 which is installed at said lift plate 33 for rotating said driving shaft 25, comprises an oscillation/rotation motor 41 , a driving pulley 42, a driven pulley 44, and a connection plate 45.
- Said oscillation/rotation motor 41 which is installed at said lift plate
- Said driving pulley 42 is driven by driving of said oscillation/rotation motor 41 ; a speed reducer 46 may be installed between said driving pulley 42 and oscillation/rotation motor 41.
- said driven pulley 44 as inserted at periphery of said screw 32 receives rotating force from said driving pulley 42 through a belt 43 and transfers it to the connection plate 45 located at upper side.
- connection plate 45 is rotated by driving of said driven pulley 44 so as to rotate the driving shaft 25 located at upper side.
- Said oscillation guide means 50 is installed between said moving plate 20 and middle supporting plate 22 and functions as a guide means of oscillating path for oscillation movement of said moving plate 20 when said cam member 24 is in combination by cam with said moving plate 20.
- said oscillation guide means 50 comprises a dual-axis oscillation guide member consisting of X-axis guide 51 which is connected to said moving plate 20 and Y-axis guide 52 which is connected to said X-axis guide 51 and fixed at said middle supporting plate 22, in order that oscillation of said moving plate 20 should be made along circular path.
- said moving plate 20 is therefore capable of performing oscillation movement with circular orbit.
- Said moving plate 20 is in connection with said middle supporting plate 22 via said dual-axis oscillation guide member in-between.
- Said rotation supporting means 60 is installed between said moving plate 20 and middle supporting plate 22, functions as a means to make said moving plate 20 rotate along with rotation of said driving shaft 25 when said driving shaft 25 is in combination with said middle supporting plate 22, and comprises, referring to FIGS. 5 and 11 , a centering housing 61 , a plurality of rollers 62, and a centering guide bracket 63.
- Said centering housing 61 is fixedly combined at upper side of said driving shaft 25, and rotates together with said driving shaft 25 and middle supporting plate 22 when the protruding parts 25a of said driving shaft 25 rotate as they get inserted in the groove member 22a of said middle supporting plate 22.
- Said plurality of rollers 62 are in contact with periphery of said centering housing 61.
- Said centering guide bracket 63 because its one side is combined with said roller 62 and the other side is fixedly combined to lower part of said moving plate 20, can support rotation of moving plate 20 together with said middle supporting plate 22 when said middle supporting plate 22 rotates according to rotation of said driving shaft 25.
- said middle supporting plate 22 may be further furnished at its one side with a carriage 70 to guide up-and-down movement of said middle supporting plate 22.
- a guide 72 is attached at one side of said carriage 70; and the guide 72 moves up and down in accordance with a guide rail 71.
- said carriage 70 is furnished further with a stopper 75 to limit the possible lowest position for moving down.
- a stopper 75 to limit the possible lowest position for moving down.
- the middle supporting plate 22 fixedly combined with carriage 70 also stops and cannot move down further. If the driving shaft 25 at such state moves down further, referring to FIG. 10, the protruding parts 25a of driving shaft 25 get inserted in groove member 22a of middle supporting plate 22, so said driving shaft 25 gets combined with middle supporting plate 22.
- said middle supporting plate 22 may further be furnished at lower part thereof with a rotation preventing pin 23 in order to prevent said middle supporting plate 22 from rotation when the combination between said driving shaft 25 and said middle supporting plate 22 gets disconnected. Said rotation preventing pin 23 when inserted into middle supporting plate 22 can prevent rotation of said middle supporting plate 22 notwithstanding rotation of said driving shaft 25.
- the protruding parts 25a formed at lower part of said driving part 25 gets disconnected from jointing with said middle supporting plate 22 due to rising-up of said driving shaft 25, so as to be made fixed because of failure in transfer of rotating force from said driving shaft 25.
- the dual-axis oscillation guide member consisting of X-axis guide 51 and Y-axis guide 52 can introduce a circular orbit movement without any phase change as X-axis movement and Y-axis movement of said moving plate 20.
- support stand 80 formed with waterway 81 , or bellows cover 82 and the like that is capable of extension and shrinkage, so that water can be easily discharged on oscillation movement or rotational movement of said moving plate 20
- the platen driving system of chemical mechanical polishing equipment for wafer of the present invention can perform either oscillation movement of platen when polishing of wafer or rotational movement of platen when washing of polishing pad, thereby it has advantageous effects of preventing from occurrences of bad-quality wafer, of enhancing efficiencies both in washing of polishing pad and in removal of impurities, and of reducing washing time remarkably.
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- Engineering & Computer Science (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)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2006-0070706 | 2006-07-27 | ||
KR1020060070706A KR100744101B1 (ko) | 2006-07-27 | 2006-07-27 | 웨이퍼 표면연마장비의 플래튼 구동 시스템 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008013330A1 true WO2008013330A1 (en) | 2008-01-31 |
Family
ID=38601374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2006/002971 WO2008013330A1 (en) | 2006-07-27 | 2006-07-28 | Platen driving system of chemical mechanical polishing equipment for wafer |
Country Status (2)
Country | Link |
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KR (1) | KR100744101B1 (ko) |
WO (1) | WO2008013330A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2220675A4 (en) * | 2007-11-22 | 2012-09-26 | Asia Pacific Systems Inc | SUBSTRATRATION AND OSCILLATION DEVICE FOR A FAST THERMAL PROCESS |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101406709B1 (ko) | 2012-12-24 | 2014-06-13 | 주식회사 케이씨텍 | 화학 기계식 연마시스템 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10329011A (ja) * | 1997-03-21 | 1998-12-15 | Canon Inc | 精密研磨装置及び方法 |
KR20010000877A (ko) * | 2000-10-25 | 2001-01-05 | 이상철 | 숫자 기반 도메인을 이용한 무선 인터넷 접속 방법 및시스템 |
JP2006187863A (ja) * | 2006-03-09 | 2006-07-20 | Ebara Corp | 基板の研磨装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5320706A (en) * | 1991-10-15 | 1994-06-14 | Texas Instruments Incorporated | Removing slurry residue from semiconductor wafer planarization |
US5916011A (en) | 1996-12-26 | 1999-06-29 | Motorola, Inc. | Process for polishing a semiconductor device substrate |
JPH11291167A (ja) | 1998-04-07 | 1999-10-26 | Nikon Corp | 研磨装置及び研磨方法 |
-
2006
- 2006-07-27 KR KR1020060070706A patent/KR100744101B1/ko not_active IP Right Cessation
- 2006-07-28 WO PCT/KR2006/002971 patent/WO2008013330A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10329011A (ja) * | 1997-03-21 | 1998-12-15 | Canon Inc | 精密研磨装置及び方法 |
KR20010000877A (ko) * | 2000-10-25 | 2001-01-05 | 이상철 | 숫자 기반 도메인을 이용한 무선 인터넷 접속 방법 및시스템 |
JP2006187863A (ja) * | 2006-03-09 | 2006-07-20 | Ebara Corp | 基板の研磨装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2220675A4 (en) * | 2007-11-22 | 2012-09-26 | Asia Pacific Systems Inc | SUBSTRATRATION AND OSCILLATION DEVICE FOR A FAST THERMAL PROCESS |
Also Published As
Publication number | Publication date |
---|---|
KR100744101B1 (ko) | 2007-08-01 |
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