WO2022145117A1 - リテーナ、トップリング、および基板処理装置 - Google Patents
リテーナ、トップリング、および基板処理装置 Download PDFInfo
- Publication number
- WO2022145117A1 WO2022145117A1 PCT/JP2021/039069 JP2021039069W WO2022145117A1 WO 2022145117 A1 WO2022145117 A1 WO 2022145117A1 JP 2021039069 W JP2021039069 W JP 2021039069W WO 2022145117 A1 WO2022145117 A1 WO 2022145117A1
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- WIPO (PCT)
- Prior art keywords
- retainer
- holding member
- main body
- top ring
- state
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 99
- 238000005498 polishing Methods 0.000 claims description 109
- 239000007788 liquid Substances 0.000 description 17
- 238000001035 drying Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000007723 transport mechanism Effects 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
- H01L21/67—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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67207—Apparatus for manufacturing or treating in a plurality of work-stations comprising a chamber adapted to a particular process
- H01L21/67219—Apparatus for manufacturing or treating in a plurality of work-stations comprising a chamber adapted to a particular process comprising at least one polishing chamber
-
- 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
- B24B37/32—Retaining rings
-
- 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
-
- 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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67092—Apparatus for mechanical treatment
-
- 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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67703—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 conveying, e.g. between different workstations between different workstations
- H01L21/67736—Loading to or unloading from a conveyor
Definitions
- CMP (Chemical Mechanical Polishing) equipment exists as a type of substrate processing equipment used in the semiconductor processing process.
- the CMP device can be divided into "face-up type (method in which the polished surface of the substrate faces upward)” and “face-down type (method in which the polished surface of the substrate faces downward)” depending on the direction in which the surface to be polished of the substrate faces. Can be separated.
- a face-down chemical mechanical polishing apparatus includes a toppling failure for holding a substrate and a polishing table to which a polishing pad is attached, and by pressing the substrate against the polishing pad while rotating the top ring and the polishing table. It is configured to polish the substrate.
- the substrate when the substrate is being polished, the substrate may come off from the top ring and pop out of the top ring.
- Patent Document 1 discloses a polishing device in which a retainer is arranged around a substrate in order to prevent the substrate from popping out when the top ring is rotating. This polishing device can prevent the substrate from popping out by arranging the retainer, and at the same time, can improve the polishing profile of the substrate by pressing the polishing pad with the retainer.
- Patent Document 1 does not consider reducing the frequency of retainer replacement.
- the retainer By arranging the retainer around the substrate, it is possible to prevent the substrate from popping out from the top ring, but the substrate may move in the top ring and collide with the retainer while the top ring is rotating.
- the collision area may be severely worn, resulting in frequent replacement of the retainer. be.
- one purpose of this application is to reduce the frequency of retainer replacement.
- the retainer is arranged so as to surround the holding area of the polygonal substrate in the top ring that holds the polygonal substrate and presses it toward the polishing pad, and is pressed against the polishing pad.
- Each side of the polygonal substrate includes a plurality of retainer bodies that are independently arranged around the holding area along the sides, and at least one of the plurality of retainer bodies is a retainer of the top ring.
- the first fixing surface that can be fixed to the holding member, the first facing surface that faces the holding region in the first state in which the first fixing surface is fixed to the retainer holding member, and the retainer main body are described.
- the second fixing surface that can be fixed to the retainer holding member in the second state rotated from the first state and the second fixing surface facing the holding region in the state of being fixed to the retainer holding member.
- Retainers are disclosed, including a second facing surface.
- FIG. 4A It is a top view which shows the whole structure of the substrate processing apparatus by one Embodiment. It is a perspective view which shows schematic structure of the polishing unit by one Embodiment. It is a schematic sectional view of the top ring by one Embodiment. It is sectional drawing which showed the 1st state which fixed the retainer main body to the retainer holding member. It is sectional drawing which showed the 2nd state which fixed the retainer main body to the retainer holding member. It is sectional drawing which showed the 3rd state which fixed the retainer main body to the retainer holding member. It is sectional drawing which showed the 4th state which fixed the retainer main body to the retainer holding member. It is a bottom view of the retainer main body and the retainer holding member of FIG. 4A.
- 5A is a cross-sectional view taken along the line BB of the retainer main body and the retainer holding member in FIG. 5A. It is a bottom view of the retainer main body and the retainer holding member in one embodiment.
- 6A is a cross-sectional view taken along the line BB of the retainer main body and the retainer holding member in FIG. 6A. It is sectional drawing which shows the modification of the retainer main body and the retainer holding member. It is sectional drawing which shows the modification of the retainer main body and the retainer holding member. It is sectional drawing which shows the modification of the retainer main body and the retainer holding member. It is sectional drawing which shows the modification of the retainer main body and the retainer holding member.
- FIG. 1 is a plan view showing the overall configuration of the substrate processing apparatus 1000 according to the embodiment.
- the substrate processing apparatus 1000 shown in FIG. 1 includes a load unit 100, a transfer unit 200, a polishing unit 300, a drying unit 500, and an unload unit 600.
- the transport unit 200 has two transport units 200A, 200B
- the polishing unit 300 has two polishing units 300A, 300B.
- each of these units can be formed independently. By forming these units independently, it is possible to easily form the substrate processing apparatus 1000 having different configurations by arbitrarily combining the number of each unit.
- the board processing device 1000 includes a control device 900, and each component of the board processing device 1000 is controlled by the control device 900.
- the control device 900 can be composed of a general computer including an input / output device, an arithmetic unit, a storage device, and the like.
- the load unit 100 is a unit for introducing the substrate WF before the processing such as polishing and cleaning into the substrate processing apparatus 1000.
- the load unit 100 is configured to comply with the SMEMA (Surface Mount Equipment Manufacturers Association) mechanical device interface standard (IPC-SMEMA-9851).
- SMEMA Surface Mount Equipment Manufacturers Association
- the transport mechanism of the load unit 100 has a plurality of transport rollers 202 and a plurality of roller shafts 204 to which the transport rollers 202 are attached.
- three transfer rollers 202 are attached to each roller shaft 204.
- the substrate WF is arranged on the transfer roller 202, and the substrate WF is transferred by rotating the transfer roller 202.
- the mounting position of the transport roller 202 on the roller shaft 204 can be arbitrary as long as it can stably transport the substrate WF. However, since the transfer roller 202 comes into contact with the substrate WF, it should be arranged so that the transfer roller 202 comes into contact with a region where there is no problem even if it comes into contact with the substrate WF to be processed.
- the transport roller 202 of the load unit 100 can be made of a conductive polymer. In one embodiment, the transport roller 202 is electrically grounded via a roller shaft 204 or the like. This is to prevent the substrate WF from being charged and damaging the electronic devices and the like on the substrate WF. Further, in one embodiment, the load unit 100 may be provided with an ionizer (not shown) in order to prevent charging of the substrate WF.
- the substrate processing apparatus 1000 shown in FIG. 1 includes two transfer units 200A and 200B. Since the two transfer units 200A and 200B can have the same configuration, they will be collectively referred to as the transfer unit 200 below.
- the illustrated transfer unit 200 includes a plurality of transfer rollers 202 for transporting the substrate WF. By rotating the transport roller 202, the substrate WF on the transport roller 202 can be transported in a predetermined direction.
- the transport roller 202 of the transport unit 200 may be formed of a conductive polymer or a non-conductive polymer.
- the transfer roller 202 is driven by a motor (not shown). The substrate WF is conveyed to the substrate delivery position by the transfer roller 202.
- the transport unit 200 has a cleaning nozzle 284.
- the cleaning nozzle 284 is connected to a source of cleaning liquid (not shown).
- the cleaning nozzle 284 is configured to supply the cleaning liquid to the substrate WF conveyed by the transfer roller 202.
- the drying unit 500 is a device for drying the substrate WF.
- the drying unit 500 dries the substrate WF cleaned by the cleaning portion of the transport unit 200 after being polished by the polishing unit 300.
- the drying unit 500 is arranged downstream of the transport unit 200.
- the drying unit 500 has a nozzle 530 for injecting gas toward the substrate WF to be conveyed on the transfer roller 202.
- the gas can be, for example, compressed air or nitrogen.
- the substrate WF can be dried by blowing off the water droplets on the conveyed substrate WF by the drying unit 500.
- the unload unit 600 is a unit for carrying out the substrate WF after processing such as polishing and cleaning to the outside of the substrate processing apparatus 1000.
- the unload unit 600 receives the substrate after being dried by the drying unit 500.
- the unload unit 600 is arranged downstream of the drying unit 500.
- the unload unit 600 is configured to comply with the SMEMA (Surface Mount Equipment Manufacturers Association) mechanical device interface standard (IPC-SMEMA-9851).
- SMEMA Surface Mount Equipment Manufacturers Association
- FIG. 2 is a perspective view schematically showing the configuration of the polishing unit 300 according to the embodiment.
- the substrate processing apparatus 1000 shown in FIG. 1 includes two polishing units 300A and 300B. Since the two polishing units 300A and 300B can have the same configuration, they will be collectively referred to as the polishing unit 300 below.
- the polishing unit 300 includes a polishing table 350 and a top ring 302 that holds a substrate to be polished and presses it against a polishing surface on the polishing table 350.
- the polishing table 350 is connected to a polishing table rotation motor (not shown) arranged below the table shaft 351 via a table shaft 351 and can rotate around the table shaft 351.
- a polishing pad 352 is attached to the upper surface of the polishing table 350, and the surface 352a of the polishing pad 352 constitutes a polishing surface for polishing the substrate.
- the polishing pad 352 may be attached via a layer to facilitate peeling from the polishing table 350. Examples of such a layer include a silicone layer and a fluororesin layer, and for example, those described in JP-A-2014-176950 may be used.
- a polishing liquid supply nozzle 354 is installed above the polishing table 350, and the polishing liquid is supplied onto the polishing pad 352 on the polishing table 350 by the polishing liquid supply nozzle 354. Further, as shown in FIG. 2, the polishing table 350 and the table shaft 351 are provided with a passage 353 for supplying the polishing liquid.
- the passage 353 communicates with the opening 355 on the surface of the polishing table 350.
- a through hole 357 is formed in the polishing pad 352 at a position corresponding to the opening 355 of the polishing table 350, and the polishing liquid passing through the passage 353 is polished from the opening 355 of the polishing table 350 and the through hole 357 of the polishing pad 352. It is supplied to the surface of the pad 352.
- the opening 355 of the polishing table 350 and the through hole 357 of the polishing pad 352 may be one or a plurality. Further, the positions of the opening 355 of the polishing table 350 and the through hole 357 of the polishing pad 352 are arbitrary, but in one embodiment, they are arranged near the center of the polishing table 350.
- the polishing unit 300 includes an atomizer 358 for injecting a liquid or a mixed fluid of a liquid and a gas toward the polishing pad 352 (FIG. 1). reference).
- the liquid ejected from the atomizer 358 is, for example, pure water, and the gas is, for example, nitrogen gas.
- the top ring 302 is connected to the top ring shaft 18, and the top ring shaft 18 moves up and down with respect to the swing arm 360 by the vertical movement mechanism 319. By the vertical movement of the top ring shaft 18, the entire top ring 302 is vertically moved and positioned with respect to the swing arm 360.
- the top ring shaft 18 is adapted to rotate by driving a top ring rotation motor (not shown). Due to the rotation of the top ring shaft 18, the top ring 302 rotates about the top ring shaft 18.
- a rotary joint 323 is attached to the upper end of the top ring shaft 18.
- the top ring 302 can hold a quadrangular substrate on its lower surface with the surface to be polished facing downward.
- the swing arm 360 is configured to be rotatable around a support shaft 362.
- the toppling failure 302 can be moved between the substrate transfer position of the above-mentioned transfer unit 200 and the upper part of the polishing table 350 by turning the swing arm 360.
- the top ring 302 can be lowered to press the substrate against the surface (polished surface) 352a of the polishing pad 352.
- the top ring 302 and the polishing table 350 are rotated, respectively, from the polishing liquid supply nozzle 354 provided above the polishing table 350 and / or from the opening 355 provided in the polishing table 350 onto the polishing pad 352. Supply the polishing liquid to.
- the surface of the substrate can be polished by pressing the substrate WF against the polishing surface 352a of the polishing pad 352.
- the arm 360 may be fixed or rocked so that the top ring 302 passes through the center of the polishing pad 352 (covering the through hole 357 of the polishing pad 352).
- the vertical movement mechanism 319 that moves the top ring shaft 18 and the top ring 302 up and down includes a bridge 28 that rotatably supports the top ring shaft 18 via a bearing 321, a ball screw 32 attached to the bridge 28, and a support column 130.
- a support base 29 supported by the support base 29 and a servomotor 38 provided on the support base 29 are provided.
- the support base 29 that supports the servomotor 38 is fixed to the swing arm 360 via the support column 130.
- the ball screw 32 includes a screw shaft 32a connected to the servomotor 38 and a nut 32b into which the screw shaft 32a is screwed.
- the top ring shaft 18 is configured to move up and down integrally with the bridge 28. Therefore, when the servomotor 38 is driven, the bridge 28 moves up and down via the ball screw 32, whereby the top ring shaft 18 and the top ring 302 move up and down.
- the polishing unit 300 includes a distance measuring sensor 70 as a position detection unit for detecting the distance to the lower surface of the bridge 28, that is, the position of the bridge 28. By detecting the position of the bridge 28 by the distance measuring sensor 70, the position of the top ring 302 can be detected.
- the distance measuring sensor 70 constitutes a vertical movement mechanism 319 together with the ball screw 32 and the servomotor 38.
- the distance measuring sensor 70 may be a laser sensor, an ultrasonic sensor, an overcurrent sensor, or a linear scale sensor. Further, each device in the polishing unit such as the distance measuring sensor 70 and the servomotor 38 is configured to be controlled by the control device 900.
- the polishing unit 300 includes a dressing unit 356 that dresses the polishing surface 352a of the polishing pad 352.
- the dressing unit 356 includes a dresser 50 that is slidably contacted with the polishing surface 352a, a dresser shaft 51 to which the dresser 50 is connected, an air cylinder 53 for raising and lowering the dresser shaft 51, and a dresser. It is provided with a swing arm 55 that rotatably supports the shaft 51.
- a dressing member 50a is held in the lower portion of the dresser 50, and needle-shaped diamond particles are electrodeposited on the lower surface of the dressing member 50a.
- the air cylinder 53 is arranged on a support base 57 supported by the columns 56, and these columns 56 are fixed to the swing arm 55.
- the swing arm 55 is driven by a motor (not shown) and is configured to rotate around a support shaft 58.
- the dresser shaft 51 is arranged to face the polishing pad 352 and rotates by driving a motor (not shown in FIG. 2), and the rotation of the dresser shaft 51 causes the dresser 50 to rotate around the dresser shaft 51. ..
- the air cylinder 53 moves the dresser 50 up and down via the dresser shaft 51, and presses the dresser 50 against the polishing surface 352a of the polishing pad 352 with a predetermined pressing force.
- Dressing of the polished surface 352a of the polishing pad 352 is performed as follows.
- the dresser 50 is pressed against the polished surface 352a by the air cylinder 53, and at the same time, pure water is supplied to the polished surface 352a from a pure water supply nozzle (not shown).
- the dresser 50 rotates around the dresser shaft 51, and the lower surface (diamond particles) of the dressing member 50a is brought into sliding contact with the polished surface 352a. In this way, the polishing pad 352 is scraped off by the dresser 50, and the polishing surface 352a is dressed.
- FIG. 3 is a schematic cross-sectional view of the top ring 302 according to the embodiment.
- the top ring 302 shows an example of holding a quadrangular substrate on the lower surface thereof, but the top ring 302 is not limited to this and can hold a polygonal substrate.
- the top ring 302 includes a flange 17 attached to the top ring shaft 18 and a retainer holding member 37 attached to the lower surface of the outer peripheral portion of the flange 17. Further, the top ring 302 has a main body 2 that presses the substrate WF against the polishing surface 352a, and a retainer 30 arranged around the substrate WF (holding region of the substrate WF) held by the top ring 302.
- the main body 2 is composed of a substantially quadrangular flat plate-shaped member, and the retainer 30 is arranged outside the main body 2.
- the retainer 30 is configured to be pressed against the polishing pad 352 (polishing surface 352a).
- the retainer 30 includes a plurality of (four in this embodiment) retainer main bodies 3 arranged around the holding region of the substrate WF independently for each of the four sides of the substrate WF.
- Each retainer body 3 is an elongated rod-shaped member.
- Each of the retainer main bodies 3 is fixed to the retainer holding member 37.
- the main body 2 is formed of a metal such as stainless steel (SUS) or a resin such as engineering plastic (for example, PEEK).
- An elastic membrane 4 that comes into contact with the back surface of the substrate is attached to the lower surface of the main body 2.
- the elastic membrane 4 is formed of a rubber material having excellent strength and durability, such as ethylene propylene rubber (EPDM), polyurethane rubber, and silicon rubber.
- EPDM ethylene propylene rubber
- the elastic membrane 4 can be formed from a rubber material using a mold.
- the main body 2 may be configured by connecting a plurality of members.
- the elastic membrane 4 has a plurality of concentric partition walls 4a, and the partition walls 4a form a circular center chamber between the upper surface of the elastic film 4 and the lower surface of the main body 2. 5.
- a square annular ripple chamber 6 surrounding the center chamber 5 a square annular intermediate chamber 7 surrounding the ripple chamber 6, a square annular outer chamber 8 surrounding the intermediate chamber 7, and a square annular chamber surrounding the outer chamber 8.
- the edge chamber 9 is formed. That is, the center chamber 5 is formed in the central portion of the main body 2, and the ripple chamber 6, the intermediate chamber 7, the outer chamber 8, and the edge chamber 9 are sequentially formed concentrically from the center toward the outer peripheral direction. As shown in FIG.
- a flow path 15 communicating with the flow path 14 and the edge chamber 9 is formed, respectively. Then, the flow path 11 communicating with the center chamber 5, the flow path 12 communicating with the ripple chamber 6, the flow path 13 communicating with the intermediate chamber 7, the flow path 14 communicating with the outer chamber 8, and the flow path communicating with the edge chamber 9. 15 is connected to a fluid source and a vacuum source via a rotary joint (not shown).
- the pressure of the fluid supplied to the center chamber 5, the ripple chamber 6, the intermediate chamber 7, the outer chamber 8, and the edge chamber 9 can be adjusted independently. can.
- the pressing force for pressing the substrate WF against the polishing pad 352 can be adjusted for each region of the substrate WF.
- the elastic membrane 4 is provided with a plurality of vacuum suction holes, and the substrate WF can be vacuum sucked to the top ring 302 by a vacuum source.
- the retainer 30 of the present embodiment includes four retainer main bodies 3, since all of them have the same configuration, only one retainer main body 3 will be described. However, the four retainer main bodies 3 do not have to have the same configuration, and at least one of the four retainer main bodies 3 may have the configuration described below.
- FIG. 4A is a cross-sectional view showing a first state in which the retainer main body is fixed to the retainer holding member.
- 5A is a bottom view of the retainer main body and the retainer holding member of FIG. 4A.
- FIG. 5B is a cross-sectional view taken along the line BB of the retainer main body and the retainer holding member in FIG. 5A.
- the retainer main body 3 of the present embodiment has the shape of a regular quadrangular prism, and as shown in FIG. 4A, the retainer main body 3 has a regular quadrangular cross-sectional shape orthogonal to the stretching direction.
- the retainer main body 3 has a first surface (first fixing surface) 3a that can be fixed to the retainer holding member 37. Further, the retainer main body 3 has a second surface (first facing surface) 3b facing the holding region 39 of the substrate WF in the first state in which the first surface 3a is fixed to the retainer holding member 37. The second surface 3b has an opposed portion 3b-1 facing the holding region 39.
- the retainer body 3 has a first magnetic member 34-1 embedded in the first surface 3a to secure the first surface 3a to the retainer holding member 37.
- the retainer holding member 37 includes a magnet 36 arranged on a surface facing the retainer main body 3. The first surface 3a is fixed to the retainer holding member 37 by attracting the first magnetic member 34-1 and the magnet 36 to each other.
- a rectangular recess for fitting the retainer main body 3 is formed on the bottom surface of the retainer holding member 37, and side walls 37a, 37b, 37c, and 37d are formed around the recess.
- the side wall 37a of the retainer holding member 37 includes a first contact surface 37a-1 that abuts on the fourth surface 3d of the retainer body 3. This prohibits the retainer body 3 from being displaced in the direction away from the holding region 39.
- the side wall 37b of the retainer holding member 37 includes a second contact surface 37b-1 that abuts on the second surface 3b of the retainer main body 3. This prohibits the retainer body 3 from being displaced toward the holding region 39.
- the side walls 37c and 37d of the retainer holding member 37 include a third contact surface 37c-1 and a fourth contact surface 37d-1 that come into contact with each bottom surface of the retainer main body 3. This prohibits the retainer body 3 from being displaced in the stretching direction.
- the substrate WF When the substrate WF is polished in the first state in which the retainer main body 3 is fixed to the retainer holding member 37, the substrate WF moves in the top ring 302 as the top ring 302 rotates. Then, the side surface and the corner of the rectangular substrate WF collide with the facing portion 3b-1 at the lower part of the second surface 3b of the retainer main body 3, and the facing portion 3b-1 at the lower part of the second surface 3b is worn (FIG. In 4A, it shows a state of being worn and dented substantially parallel to the holding region 39).
- the retainer main body 3 when the facing portion 3b-1 exceeds the wear limit, the retainer main body 3 can be continuously used by rotating (changing the direction), so that the replacement frequency of the retainer 30 is reduced. be able to. This point will be described below.
- FIG. 4B is a cross-sectional view showing a second state in which the retainer main body is fixed to the retainer holding member.
- the second state is a state in which the retainer main body 3 is rotated 180 degrees around a virtual rotation axis along the stretching direction of the retainer main body 3.
- the retainer main body 3 has a third surface (second fixing) different from the first surface (first fixing surface) 3a that can be fixed to the retainer holding member 37 in the second state.
- a surface) 3c and a fourth surface (second facing surface) 3d different from the second surface 3b, which faces the holding region 39 in a state where the third surface 3c is fixed to the retainer holding member 37. ..
- the fourth surface 3d has an opposed portion 3d-1 facing the holding region 39.
- the retainer main body 3 has a third magnetic member 34-3 embedded in the third surface 3c in order to fix the third surface 3c to the retainer holding member 37.
- the third surface 3c is fixed to the retainer holding member 37 by attracting the third magnetic member 34-3 and the magnet 36 to each other.
- the retainer main body 3 When the substrate WF is polished in the second state where the retainer main body 3 is fixed to the retainer holding member 37, the substrate WF moves in the top ring 302 as the top ring 302 rotates, but the substrate WF collides with the substrate WF. It is not the second surface 3b that has already been worn, but the fourth surface 3d that has not been worn. Therefore, the retainer main body 3 can be continuously used even after the second surface 3b is worn.
- the retainer body 3 is rotated 180 degrees around the virtual rotation axis along the stretching direction of the retainer body 3 is shown, but the present invention is not limited to this, and the retainer is rotated around the virtual rotation axis.
- the main body 3 may be rotated 90 degrees or 270 degrees. That is, in the retainer main body 3, the second magnetic member 34-2 is embedded in the second surface 3b, and the fourth magnetic member 34-4 is embedded in the fourth surface 3d. Therefore, the retainer main body 3 can be fixed to the retainer holding member 37 in each state in which the retainer main body 3 is rotated 90 degrees and 270 degrees from the first state. Further, in each state, the surface facing the holding region 39 (the surface where the substrate WF collides and wears) is different, so that the retainer main body 3 can be continuously used without being replaced.
- the retainer body 3 is rotated so as to change the direction of the retainer body 3 in the extension direction. May be good. Further, the orientation of the retainer main body 3 may be changed by combining these two rotations.
- FIG. 4C is a cross-sectional view showing a third state in which the retainer main body is fixed to the retainer holding member.
- the third state is a state in which the retainer main body 3 is rotated and fixed to the retainer holding member 37 so as to switch the direction of the retainer main body 3 in the stretching direction in the horizontal plane from the above first state.
- the retainer main body 3 faces the holding region 39 in a state where the first surface 3a that can be fixed to the retainer holding member 37 and the first surface 3a are fixed to the retainer holding member 37.
- the surface fixed to the retainer holding member 37 is the same as in the first state, but the surface facing the holding region 39 is the first. It is different from the state of 1. Therefore, the retainer main body 3 can be continuously used.
- the retainer body 3 becomes the retainer holding member 37. Since it can be fixed and the portion facing the holding region 39 is different, it can be continuously used. That is, in the example of FIG. 4B, the second facing surface (fourth surface 3d) of the retainer main body 3 in the second state is the first facing surface (second facing surface) of the retainer main body 3 in the first state. It was different from the surface 3b). On the other hand, the second facing surface of the retainer main body 3 in the second state may be the same surface as the first facing surface.
- the second facing surface is a surface having a facing portion with the holding region 39, which is different from the facing portion with the holding region 39 in the first state.
- An example in which the second facing surface becomes the same as the first facing surface will be described below as a fourth state.
- FIG. 4D is a cross-sectional view showing a fourth state in which the retainer main body is fixed to the retainer holding member.
- the fourth state is a state in which the retainer main body 3 is rotated and fixed to the retainer holding member 37 so as to switch the direction of the retainer main body 3 in the stretching direction in the vertical plane from the first state described above.
- the retainer main body 3 has a third surface 3c that can be fixed to the retainer holding member 37 and a second surface 3c that faces the holding region 39 in a state where the third surface 3c is fixed to the retainer holding member 37.
- Surface 3b and. In both the first state and the fourth state, the second surface 3b faces the holding region 39.
- the facing portion 3b-1 worn in the first state does not face the holding region 39 in the fourth state.
- the second surface 3b has a portion 3b-2 facing the holding region 39, which is different from the portion 3b-1 facing the holding region 39 in the first state. Since the facing portion 3b-2 is not worn, the retainer main body 3 can be continuously used.
- the retainer main body 3 of the present embodiment can be used for a total of eight times by rotating the retainer main body 3. Therefore, according to the present embodiment, the frequency of replacement of the retainer 30 can be reduced.
- the retainer main body 3 of the present embodiment can be stably fixed to the retainer holding member 37 regardless of the type of polishing liquid. That is, in order to fix the retainer main body 3 to the retainer holding member 37, for example, it is conceivable to make a screw hole in the retainer main body 3 and fix the retainer main body 3 to the retainer holding member 37 with bolts. However, since the retainer main body 3 of the present embodiment is rotated and used many times, screw holes are formed in each of the first surface 3a to the fourth surface 3d. Then, for example, when the first surface 3a is fixed to the retainer holding member 37, the third surface 3c faces the polishing pad 352 and comes into contact with the polishing liquid during polishing. As a result, the polishing liquid may adhere to the screw hole of the third surface 3c, and the third surface 3c may not be fixed to the retainer holding member 37.
- the retainer main body 3 of the present embodiment is fixed to the retainer holding member 37 by using the magnetic force between the magnetic member embedded in the retainer main body 3 and the magnet 36 provided in the retainer holding member 37. Therefore, the retainer main body 3 can be stably fixed to the retainer holding member 37 regardless of the type of polishing liquid.
- An electromagnet may be provided instead of the magnet 36. In this case, when the retainer main body 3 is attached to the retainer holding member 37, the electromagnet is energized to fix the retainer main body 3 to the retainer holding member 37, while the energization of the electromagnet is turned off when the direction of the retainer main body 3 is changed. 3 can be easily removed from the retainer holding member 37.
- the means for fixing the retainer main body 3 to the retainer holding member 37 is not limited to the one using magnetic force.
- the retainer main body 3 may be fixed to the retainer holding member 37 with bolts or the like, or other means may be used.
- FIG. 6A is a bottom view of the retainer main body and the retainer holding member in one embodiment.
- FIG. 6B is a cross-sectional view taken along the line BB of the retainer main body and the retainer holding member in FIG. 6A.
- the retainer main body 3 and the retainer holding member 37 of the present embodiment have the same configurations as those of the embodiments described in FIGS. 4 and 5 except that a boss hole is formed in the retainer main body 3 and a boss is provided in the retainer holding member 37. Therefore, a duplicate description will be omitted.
- a plurality of boss holes 3e are formed on the third surface 3c of the retainer main body 3 along the stretching direction. Further, as shown in FIG. 6B, a plurality of boss holes 3f are formed on the first surface 3a of the retainer main body 3 along the stretching direction. Boss holes are similarly formed on the second surface 3b and the fourth surface 3d of the retainer main body 3.
- the retainer holding member 37 is provided with a plurality of bosses 37e on the surface facing the retainer main body 3. The plurality of bosses 37e are provided at positions corresponding to the boss holes of the retainer main body 3.
- the retainer main body 3 can be attached to the retainer holding member 37 so as to insert the boss 37e into the boss hole 3f of the retainer main body 3, the retainer main body 3 can be easily positioned. Further, by inserting the boss 37e into the boss hole 3f, it is possible to suppress the displacement of the retainer main body 3 during polishing. Further, as shown in FIG. 6B, the plurality of boss holes 3f are formed at positions rotationally symmetric with respect to the center of the retainer main body 3 in the stretching direction.
- the boss 37e can be inserted into the boss hole 3f, and the retainer body 3 is placed in the same position as before the rotation. Can be fixed to.
- the positions of the plurality of boss holes 3e and the plurality of boss holes formed on the second surface 3b and the fourth surface 3d of the retainer body 3 are rotationally symmetric with respect to the center of the retainer body 3 in the extending direction. Is formed in.
- the retainer main body 3 having the shape of a regular quadrangular prism has been described as an example, but the shape of the retainer main body 3 is not limited to this.
- 7A, 7B, and 7C are sectional views showing a modified example of the retainer main body and the retainer holding member.
- the retainer main body 3 may have the shape of a regular triangular prism.
- the magnetic member 34 is embedded in each of the three side surfaces of the retainer main body 3.
- a recess corresponding to the shape of the retainer main body 3 is formed on the bottom surface of the retainer holding member 37.
- Magnets 36-1 and 36-2 are provided on the surface of the retainer holding member 37 facing the retainer main body 3.
- the retainer holding member 37 has a contact surface 37a-1 that abuts on the retainer body 3 so as to prevent the retainer body 3 from being displaced in a direction away from the board holding area 39, and the retainer body 3 has a board holding area 39. It has a contact surface 37b-1 that abuts on the retainer main body 3 so as to prohibit displacement in a direction approaching.
- the retainer main body 3 may have the shape of a regular pentagonal prism.
- the magnetic member 34 is embedded in each of the five side surfaces of the retainer main body 3.
- a recess corresponding to the shape of the retainer main body 3 is formed on the bottom surface of the retainer holding member 37.
- Magnets 36-1 and 36-2 are provided on the surface of the retainer holding member 37 facing the retainer main body 3.
- the retainer holding member 37 has a contact surface 37a-1 that abuts on the retainer body 3 so as to prevent the retainer body 3 from being displaced in a direction away from the board holding area 39, and the retainer body 3 has a board holding area 39. It has a contact surface 37b-1 that abuts on the retainer main body 3 so as to prohibit displacement in a direction approaching.
- the retainer main body 3 may have the shape of a regular hexagonal prism.
- magnetic members 34 are embedded in each of the six side surfaces of the retainer body 3.
- a recess corresponding to the shape of the retainer main body 3 is formed on the bottom surface of the retainer holding member 37.
- Magnets 36-1, 36-2, 36-3 are provided on the surface of the retainer holding member 37 facing the retainer main body 3.
- the retainer holding member 37 has a contact surface 37a-1 that abuts on the retainer body 3 so as to prevent the retainer body 3 from being displaced in a direction away from the board holding area 39, and the retainer body 3 has a board holding area 39.
- the retainer main body 3 has a contact surface 37b-1 that abuts on the retainer main body 3 so as to prohibit displacement in a direction approaching.
- a boss hole as shown in FIGS. 6A and 6B is formed, and the modified example shown in FIGS. 7A, 7B, and 7C is formed.
- the retainer holding member 37 may be provided with a boss as shown in FIGS. 6A and 6B.
- the retainer main body 3 can have the shape of a regular polygonal prism, not limited to the above-mentioned modification. Further, the retainer main body 3 is not limited to the shape of a regular polygonal prism.
- the retainer main body 3 may have various shapes such as an L-shaped columnar cross section.
- the present application is, as one embodiment, a retainer arranged so as to surround the holding area of the polygonal substrate in a top ring that holds the polygonal substrate and presses it toward the polishing pad, and presses against the polishing pad.
- Each side of the polygonal substrate includes a plurality of retainer bodies that are independently arranged around the holding area along the sides, and at least one of the plurality of retainer bodies is the top ring.
- a first fixing surface that can be fixed to the retainer holding member, a first facing surface that faces the holding region in the first state in which the first fixing surface is fixed to the retainer holding member, and the retainer main body.
- a second fixing surface that can be fixed to the retainer holding member in the second state rotated from the first state, and facing the holding region in a state where the second fixing surface is fixed to the retainer holding member.
- a retainer including a second facing surface.
- the retainer body in the first state is rotated around a virtual rotation axis extending in the extending direction of the retainer body, or the retainer body is used. It is a state different from the first state, which is rotated so as to switch the directions in the stretching direction, or is rotated by a combination thereof, and the second facing surface is a surface different from the first facing surface. Disclosed is a retainer which is the same surface as the first facing surface but has a facing portion with the holding region different from the facing portion with the holding region in the first state. do.
- At least one of the plurality of retainer bodies is a magnetic member embedded in the first fixing surface in order to fix the first fixing surface to the retainer holding member.
- a retainer comprising a magnetic member embedded in the second fixing surface to secure the second fixing surface to the retainer holding member.
- At least one of the plurality of retainer bodies has the shape of a regular polygonal prism, and each side surface of the regular polygonal prism is for fixing the side surface to the retainer holding member.
- a retainer including a magnetic member embedded in the side surface is disclosed.
- the present application is, as an embodiment, a toppling failure that holds a polygonal substrate and presses it toward a polishing pad, and is attached to a rotary shaft, a flange fixed to the rotary shaft, and the flange.
- a top ring comprising a retainer holding member and the retainer according to any one of the above attached to the retainer holding member.
- the present application discloses, as an embodiment, a top ring in which the retainer holding member includes a magnet or an electromagnet arranged on a surface facing the retainer main body.
- the retainer holding member has a top ring having a contact surface that comes into contact with the retainer body so as to prevent the retainer body from being displaced away from the holding area. Disclose.
- a plurality of boss holes are formed on the first fixing surface and the second fixing surface of the retainer body along the extending direction of the retainer body to hold the retainer.
- a top ring is provided with a plurality of bosses at positions corresponding to the boss holes of the first fixing surface and the second fixing surface of the retainer body.
- the present application discloses, as an embodiment, a substrate processing apparatus in which the plurality of boss holes are formed at positions rotationally symmetric with respect to the center of the retainer body in the stretching direction.
- the present application discloses, as an embodiment, a substrate processing apparatus having the top ring according to any one of the above and a polishing table configured to hold a polishing pad.
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Abstract
Description
ロードユニット100は、研磨および洗浄などの処理が行われる前の基板WFを基板処理装置1000内へ導入するためのユニットである。一実施形態において、ロードユニット100は、SMEMA(Surface Mount Equipment Manufacturers Association)の機械装置インタフェース規格(IPC-SMEMA-9851)に準拠するように構成される。
図1に示される基板処理装置1000は、2つの搬送ユニット200A、200Bを備えている。2つの搬送ユニット200A、200Bは同一の構成とすることができるので、以下において、一括して搬送ユニット200として説明する。
乾燥ユニット500は、基板WFを乾燥させるための装置である。図1に示される基板処理装置1000においては、乾燥ユニット500は、研磨ユニット300で研磨された後に、搬送ユニット200の洗浄部で洗浄された基板WFを乾燥させる。図1に示されるように、乾燥ユニット500は、搬送ユニット200の下流に配置される。
アンロードユニット600は、研磨および洗浄などの処理が行われた後の基板WFを基板処理装置1000の外へ搬出するためのユニットである。図1に示される基板処理装置1000においては、アンロードユニット600は、乾燥ユニット500で乾燥された後の基板を受け入れる。図1に示されるように、アンロードユニット600は、乾燥ユニット500の下流に配置される。一実施形態において、アンロードユニット600は、SMEMA(Surface Mount Equipment Manufacturers Association)の機械装置インタフェース規格(IPC-SMEMA-9851)に準拠するように構成される。
図2は、一実施形態による研磨ユニット300の構成を概略的に示す斜視図である。図1に示される基板処理装置1000は、2つの研磨ユニット300A、300Bを備えている。2つの研磨ユニット300A、300Bは同一の構成とすることができるので、以下において、一括して研磨ユニット300として説明する。
3a 第1の面
3b 第2の面
3c 第3の面
3d 第4の面
3e ボス穴
3f ボス穴
17 フランジ
18 トップリングシャフト
30 リテーナ
34 磁性部材
36 磁石
37 リテーナ保持部材
37a 側壁
37a-1 当接面
37b 側壁
37b-1 当接面
37e ボス
39 保持領域
300 研磨ユニット
302 トップリング
350 研磨テーブル
352 研磨パッド
1000 基板処理装置
WF 基板
Claims (10)
- 多角形基板を保持して研磨パッドに向けて押圧するトップリングにおいて前記多角形基板の保持領域を囲むように配置され前記研磨パッドに向けて押圧されるリテーナであって、
前記多角形基板の辺ごとに独立して前記辺に沿うように前記保持領域の周囲に配置される複数のリテーナ本体を含み、
前記複数のリテーナ本体の少なくとも1つは、前記トップリングのリテーナ保持部材に固定可能な第1の固定面と、前記第1の固定面を前記リテーナ保持部材に固定した第1の状態において前記保持領域と対向する第1の対向面と、前記リテーナ本体を前記第1の状態から回転させた第2の状態において前記リテーナ保持部材に固定可能な第2の固定面と、前記第2の固定面を前記リテーナ保持部材に固定した状態において前記保持領域と対向する第2の対向面と、を含む、
リテーナ。 - 前記第2の状態は、前記第1の状態の前記リテーナ本体を、前記リテーナ本体の延伸方向に伸びる仮想回転軸の周りに回転させるか、前記リテーナ本体の延伸方向の向きを入れ替えるように回転させるか、またはそれらの組み合わせで回転させた、前記第1の状態とは異なる状態であり、
前記第2の対向面は、前記第1の対向面と異なる面であるか、または前記第1の対向面と同一の面であるが前記第1の状態における前記保持領域との対向部位とは異なる前記保持領域との対向部位を有する面である、
請求項1に記載のリテーナ。 - 前記複数のリテーナ本体の少なくとも1つは、前記第1の固定面を前記リテーナ保持部材に固定するために前記第1の固定面に埋め込まれた磁性部材と、前記第2の固定面を前記リテーナ保持部材に固定するために前記第2の固定面に埋め込まれた磁性部材と、を含む、
請求項1または2に記載のリテーナ。 - 前記複数のリテーナ本体の少なくとも1つは正多角柱の形状を有し、
前記正多角柱の側面はそれぞれ、前記側面を前記リテーナ保持部材に固定するために前記側面に埋め込まれた磁性部材を含む、
請求項1から3のいずれか一項に記載のリテーナ。 - 多角形基板を保持して研磨パッドに向けて押圧するトップリングであって、
回転シャフトと、
前記回転シャフトに固定されたフランジと、
前記フランジに取り付けられたリテーナ保持部材と、
前記リテーナ保持部材に取り付けられた請求項1から4のいずれか一項に記載のリテーナと、
を含む、
トップリング。 - 前記リテーナ保持部材は、前記リテーナ本体との対向面に配置された磁石または電磁石を含む、
請求項5に記載のトップリング。 - 前記リテーナ保持部材は、前記リテーナ本体が前記保持領域から離れる方向へ変位するのを禁止するように前記リテーナ本体と当接する当接面を有する、
請求項5または6に記載のトップリング。 - 前記リテーナ本体の前記第1の固定面および前記第2の固定面には、前記リテーナ本体の延伸方向に沿って複数のボス穴が形成され、
前記リテーナ保持部材の前記リテーナ本体との対向面には、前記リテーナ本体の前記第1の固定面および前記第2の固定面の前記ボス穴に対応する位置に複数のボスが設けられている、
請求項5から7のいずれか一項に記載のトップリング。 - 前記複数のボス穴は、前記リテーナ本体の延伸方向の中心に対して回転対称な位置に形成される、
請求項8に記載のトップリング。 - 請求項5から9のいずれか一項に記載のトップリングと、
研磨パッドを保持するように構成された研磨テーブルと、を有する、
基板処理装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP21914978.8A EP4269025A1 (en) | 2020-12-28 | 2021-10-22 | Retainer, top ring, and substrate processing device |
US18/268,082 US20240001506A1 (en) | 2020-12-28 | 2021-10-22 | Retainer, top ring, and substrate processing apparatus |
CN202180087975.0A CN116745891A (zh) | 2020-12-28 | 2021-10-22 | 保持器、顶环及基板处理装置 |
KR1020237022442A KR20230121079A (ko) | 2020-12-28 | 2021-10-22 | 리테이너, 톱링, 및 기판 처리 장치 |
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JP2020218340A JP2022103604A (ja) | 2020-12-28 | 2020-12-28 | リテーナ、トップリング、および基板処理装置 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000052242A (ja) * | 1998-08-12 | 2000-02-22 | Speedfam-Ipec Co Ltd | ワークホルダー |
JP3123851U (ja) * | 2005-01-15 | 2006-07-27 | アプライド マテリアルズ インコーポレイテッド | 磁気で固定された保持リング |
JP2008137108A (ja) * | 2006-12-01 | 2008-06-19 | Nitta Haas Inc | 被加工物保持枠材および被加工物保持具 |
JP2014176950A (ja) | 2013-02-12 | 2014-09-25 | Ebara Corp | 研磨装置、及び研磨パッド貼り付け方法 |
JP2020163529A (ja) | 2019-03-29 | 2020-10-08 | 株式会社荏原製作所 | 基板を保持するための研磨ヘッドおよび基板処理装置 |
-
2020
- 2020-12-28 JP JP2020218340A patent/JP2022103604A/ja active Pending
-
2021
- 2021-10-22 KR KR1020237022442A patent/KR20230121079A/ko active Search and Examination
- 2021-10-22 WO PCT/JP2021/039069 patent/WO2022145117A1/ja active Application Filing
- 2021-10-22 US US18/268,082 patent/US20240001506A1/en active Pending
- 2021-10-22 CN CN202180087975.0A patent/CN116745891A/zh active Pending
- 2021-10-22 EP EP21914978.8A patent/EP4269025A1/en active Pending
- 2021-12-16 TW TW110147185A patent/TW202230600A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000052242A (ja) * | 1998-08-12 | 2000-02-22 | Speedfam-Ipec Co Ltd | ワークホルダー |
JP3123851U (ja) * | 2005-01-15 | 2006-07-27 | アプライド マテリアルズ インコーポレイテッド | 磁気で固定された保持リング |
JP2008137108A (ja) * | 2006-12-01 | 2008-06-19 | Nitta Haas Inc | 被加工物保持枠材および被加工物保持具 |
JP2014176950A (ja) | 2013-02-12 | 2014-09-25 | Ebara Corp | 研磨装置、及び研磨パッド貼り付け方法 |
JP2020163529A (ja) | 2019-03-29 | 2020-10-08 | 株式会社荏原製作所 | 基板を保持するための研磨ヘッドおよび基板処理装置 |
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CN116745891A (zh) | 2023-09-12 |
TW202230600A (zh) | 2022-08-01 |
US20240001506A1 (en) | 2024-01-04 |
KR20230121079A (ko) | 2023-08-17 |
EP4269025A1 (en) | 2023-11-01 |
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