WO2004108357A1 - 研磨装置、これを用いた半導体デバイス製造方法およびこの方法により製造される半導体デバイス - Google Patents
研磨装置、これを用いた半導体デバイス製造方法およびこの方法により製造される半導体デバイス Download PDFInfo
- Publication number
- WO2004108357A1 WO2004108357A1 PCT/JP2004/007899 JP2004007899W WO2004108357A1 WO 2004108357 A1 WO2004108357 A1 WO 2004108357A1 JP 2004007899 W JP2004007899 W JP 2004007899W WO 2004108357 A1 WO2004108357 A1 WO 2004108357A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing
- polished
- head housing
- air
- head
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
- B24B37/12—Lapping plates for working plane surfaces
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
- H10P52/40—Chemomechanical polishing [CMP]
- H10P52/402—Chemomechanical polishing [CMP] of semiconductor materials
Definitions
- the present invention relates to a polishing apparatus for flattening a surface of an object to be polished such as a semiconductor wafer, and more particularly, to a structure of a polishing head included in the polishing apparatus.
- the invention also relates to a semiconductor device manufacturing method and a semiconductor device using the polishing apparatus.
- a polishing apparatus which holds a semiconductor wafer as an object to be polished by a holder and relatively rotates and moves the semiconductor wafer in contact with a polishing member (polishing pad) to polish the surface of the semiconductor wafer.
- a polishing member polishing pad
- the polishing member changes its attitude following irregularities on the surface of the wafer (object to be polished). In order to maintain the optimum machining state at all times, or by changing the posture of the body.
- a flexible rubber sheet is used for a head portion for holding a wafer, and a pneumatic pressure is applied to the back side of the rubber sheet. Then, the wafer is pressed through the rubber sheet to a polishing pad serving as a polishing member.
- a head for holding a wafer is connected to a rotary drive shaft via a ball joint structure, and the head is Boulder It is configured to be rotatably driven in a swingable state via a joint portion.
- the position of the polishing pad changes flexibly according to the rotational accuracy of the platen on which the polishing pad is attached and the variation in the thickness of the polishing pad.
- the surface is always evenly contacted so that uniform surface polishing can be performed.
- an apparatus having a configuration capable of flexibly changing the polishing member side, that is, the posture of the polishing pad.
- a wafer is vacuum-adsorbed (in a face-up state) with its surface to be polished facing upward, and is rotationally driven together with the wafer chuck.
- a polishing head is disposed above and opposed to the wafer, and the polishing head is composed of a polishing member having a polishing pad in contact with a surface to be polished of the wafer, and a drive for flexibly supporting the polishing member. It comprises a plate and a rubber sheet (diaphragm), and a head housing in which an internal space for forming a pressure chamber for applying air pressure thereto is formed.
- the outer periphery of the drive plate and the rubber sheet is joined at the outer periphery of the lower end of the head housing, the drive plate and the rubber sheet are joined to the polishing member at the inner periphery, and the internal space of the head housing occupies these drive plates. And a pressure chamber formed by being covered with a rubber sheet. As a result, the polishing member is supported by the head housing via the drive plate, and uniformly receives the air pressure in the pressure chamber via the rubber sheet. When the head housing is rotationally driven, a rotational driving force is transmitted to the polishing member via the drive plate, and the whole is rotated.
- Polishing of a wafer using the polishing apparatus having such a configuration is performed by rotating the polishing pad and abutting the surface to be polished of the wafer which is rotated and held by the wafer chuck. At this time, the polishing pad rotates. While reciprocating in the horizontal direction with respect to the wafer, the entire surface of the wafer is uniformly polished.
- the wafer is pressed against a device surface (a surface to be polished) of a wafer which rotates together with the polishing head.
- the polishing head is further provided with a horizontal reciprocating movement called an oscillating movement so that the front surface of the device surface of the wafer can be uniformly polished.
- the polishing thrust F on the wafer by the polishing member (polishing pad) is expressed by equation (1).
- W is the own weight of the polishing member or the like
- P is the air pressure in the head housing (pressure chamber)
- S is the pressure receiving area of the polishing member.
- the polishing pad performs a process to remove the surface of the pad material by about 2 to 3 zm by using a tool called a pad conditioner (dresser) before each polishing is started.
- the structure of the pad conditioner is such that a disk having a surface coated with granular diamond is pressed against a polishing pad with a constant pressing force while rotating, thereby polishing the surface of the polishing pad.
- the polishing pad is removed by 2 to 3 / m.
- the surface of the polishing pad becomes 1 to 1.5 mm. Will be removed.
- removal of the surface of the polishing pad means that the thickness of the polishing pad becomes thinner.
- a polishing pad having an initial thickness of 3 mm is required to polish 500 wafers. It means thinning to a thickness of 5 to 2 mm.
- the thickness of the polishing pad used gradually decreases due to the operation of the pad conditioner described above.
- the thickness of the wafer to be polished also varies. For a 300 mm wafer, the standard value is about 775 zm, but it is known that there is actually a variation of several tens of meters / m.
- the height On the wafer chuck of the polishing head in the polishing device It is considered that the height also changes by about 0.2 mm from the coefficient of thermal expansion of the metal constituting the device. Due to these factors, the height of the polishing member to which the polishing pad is attached in the polishing head changes every time the wafer is processed, and accordingly, the shape of the dribbling also changes every time the wafer is processed. .
- the maximum change in the height of the polishing member is about 2 mm, so the shape of the drive ring is about 2 mm at the maximum. Will change.
- the drive ring is made of a thin steel plate, it naturally has an elastic coefficient.
- the polishing thrust F is expressed by equation (2).
- FIG. 10A and 10 (b) are diagrams showing changes in the shape of the rubber sheet 503 (diaphragm) due to the vertical movement of the polishing member 501.
- FIG. 10A the area (area) of the rubber sheet 503 that is surrounded by the recessed portion 504 from the vicinity of the center of the recessed portion 504 is a pressure receiving surface (pressure receiving surface) that receives the air pressure in the head housing 502 of the polishing member 501. It is approximated as area S).
- the polishing member 501 and the rubber sheet 503 are formed in a disk shape, and the pressure receiving surface is circular. And the diameter D of the pressure receiving surface (pressure receiving area S) is given by the formula It is approximated as (3).
- ID is the outer diameter of the contact portion between the rubber sheet 503 and the polishing member 501
- OD is the inner diameter of the contact portion between the rubber sheet 503 and the head housing 502.
- FIG. 10B is a diagram when the polishing member 501 is lowered.
- a phenomenon occurs in which the rubber sheet 503 floats up from the polishing member 501 and a floating portion 505 is generated in the rubber sheet 503, so that the contact portion outer diameter ID between the rubber sheet 503 and the polishing member 501 changes ( ID ') and the diameter D of the pressure receiving surface (pressure receiving area S) changes to D'.
- ID ' the contact portion outer diameter ID between the rubber sheet 503 and the polishing member 501 changes
- the diameter D of the pressure receiving surface pressure receiving area S
- the present invention has been made in view of such a problem, and reduces an error in the polishing thrust of a polishing member (polishing pad) due to a change in the thickness of the polishing pad, and also reduces the air pressure in the head housing.
- An object of the present invention is to provide a polishing apparatus having improved linearity of polishing thrust.
- a polishing apparatus includes an object holder for holding an object to be polished, and a polishing apparatus for polishing a surface of the object to be polished opposite to a surface to be polished.
- a polishing head having a polishing member provided with a surface, wherein the polishing head is configured to relatively move the polishing surface while contacting the polishing surface with the surface to be polished to polish the surface to be polished.
- a head housing having an opening on a surface facing the surface to be polished; and a plate holding portion provided on the head housing for holding a polishing member, wherein the polishing member has an opening in the head housing.
- the plate holding portion is provided so as to close and is capable of reciprocating in a direction toward the surface to be polished using air supplied and discharged into and from the head housing.
- a slide guide member provided to extend in a direction toward the surface to be polished provided; a slide member provided to the slide guide member so as to be reciprocally movable in a direction toward the surface to be polished;
- Et provided timber being characterized in that it is configured to have a swing holding member that holds the abrasive member swingably.
- a swing buffer mechanism for the polishing member is provided across the polishing member and the slide member.
- an urging panel for urging the polishing member to a position facing the surface to be polished is provided in the swing buffering mechanism.
- a polishing apparatus includes an object holder for holding an object to be polished, and a polishing member provided with a polishing surface on a surface of the object to be polished opposite to the surface to be polished.
- a polishing head wherein the polishing head is configured to perform relative polishing while bringing the polishing surface into contact with the surface to be polished, thereby polishing the surface to be polished.
- the polishing head is provided on a surface facing the surface to be polished.
- a head housing having an opening; and a ring member provided inside the head housing, wherein the polishing member is provided in the head housing so as to close the opening, and the polishing member is provided in the head housing.
- the ring member is configured to be able to reciprocate in a direction toward the surface to be polished by using the supplied and discharged air, and the ring member surrounds the polishing member located in the head housing and surrounds the polishing member. Predetermined clearance between the outer circumference Occurs 7
- a plate holding portion for holding the polishing member is provided in the head housing, and the plate holding portion extends in a direction toward a surface to be polished provided in the head housing.
- the swing buffering mechanism is provided with a biasing panel for biasing the polishing member to a position facing the polishing target surface.
- the head housing is provided with an air inlet for supplying air into the head housing. It is preferable that an exhaust port for discharging air from inside is provided separately from the intake port. And an air supply pipe having one end connected to the intake port, and an air supply pipe connected to the other end of the air supply pipe, and air inside the head housing via the air supply pipe and the air intake port.
- An air supply unit capable of supplying air, an exhaust pipe having one end connected to the exhaust port, an exhaust pipe provided to be connected to the other end of the exhaust pipe, and the head provided through the exhaust port and the exhaust pipe.
- An air discharge portion capable of discharging air from the housing, and an air pressure controlling operation of the air supply portion and the air discharge portion so that air pressure in the head housing becomes a desired air pressure. It is preferable to include a control unit.
- a supply-side pressure measurement unit capable of measuring the air pressure in the air supply pipe, and an exhaust-side pressure measurement unit capable of measuring the air pressure in the exhaust pipe are provided. Measured by the pressure measurement unit The air pressure in the head housing is measured based on the air pressure in the supply pipe and the air pressure in the exhaust pipe measured by the exhaust-side pressure measurement unit, and the measured air pressure in the head housing is a desired value. It is preferable to control the operation of the air supply unit and the air discharge unit so that the air pressure is obtained.
- the object to be polished is a semiconductor wafer, and the surface of the semiconductor wafer is flattened by using the polishing apparatus according to the present invention having the above-described configuration. It is characterized by having.
- a semiconductor device according to the present invention is characterized by being manufactured by such a semiconductor device manufacturing method.
- FIG. 1 is a front view of a CMP apparatus as an example of a polishing apparatus according to the present invention.
- FIG. 2 is a front view (cross-sectional view) of a polishing head included in the CMP apparatus.
- FIG. 3 is a front view (cross-sectional view) showing a second embodiment of the polishing head.
- FIG. 4 is a plan sectional view taken along arrow IV—IV in FIG.
- FIG. 5 is a side view of the swing holding member.
- FIG. 6 is a side sectional view of the swing damping mechanism.
- FIG. 7 is a front view (cross-sectional view) showing a third embodiment of the polishing head.
- FIG. 8 is a flowchart showing a manufacturing process of the semiconductor device according to the present invention.
- FIG. 9 is an explanatory diagram schematically showing an air circuit connected to the polishing head.
- FIGS. 10 (a) and 10 (b) are diagrams sequentially showing changes in the shape of a rubber sheet due to up and down of a polishing member in a conventional polishing apparatus.
- FIG. 1 shows a CMP apparatus (chemical mechanical polishing apparatus) as a typical example of the polishing apparatus according to the present invention.
- the CMP apparatus 1 is provided with a wafer holding table 95 capable of detachably adsorbing and holding a wafer 90 to be polished on the upper surface thereof, and a wafer holding table 95 provided above the wafer holding table 95.
- a polishing head 30 holding a polishing member 50 to which a polishing pad 65 facing the polished surface 91 of the wafer 90 held thereon is attached. I have.
- the dimension (diameter) of the polishing pad 65 is smaller than the dimension (diameter) of the wafer 90 to be polished (that is, the polishing pad 65 has a smaller diameter than the wafer 90).
- the polishing pad 65 is brought into contact with the wafer 90 and is relatively moved so that the entire polished surface (upper surface) 91 of the wafer 90 can be polished.
- the supporting frame 20 for supporting the holding table 95 and the polishing head 30 is composed of a horizontal base 21 and a Y-direction on the base 21 (in a direction perpendicular to the paper surface).
- the first stage 22 is provided movably in the Y direction on a rail (not shown) provided so as to extend in the front-rear direction, and extends vertically (Z direction) from the first stage 22.
- Frame 23 provided in such a manner that a second stage 24 is provided on the vertical frame 23 so as to be movable in the Z direction (up and down direction).
- a third stage 26 provided movably on the horizontal frame 25 in the X direction (left-right direction).
- a first electric motor M1 is provided in the first stage 22. By rotating the first electric motor M1, the first stage 22 can be moved in the Y direction along the rail.
- the second electric motor M2 is in the second stage 24.
- the second stage 24 can be moved in the Z direction along the vertical frame 23 by rotating the second stage 24.
- a third electric motor M 3 is provided in the third stage 26, and the third electric motor M 3 is rotated to move the third stage 26 in the X direction along the horizontal frame 25. Can be done. Therefore, the third stage 26 can be moved to an arbitrary position above the wafer holding table 95 by combining the rotation operations of the electric motors M1 to M3.
- the wafer holding table 95 is horizontally mounted on the upper end of a rotating shaft 28 provided vertically extending upward from a table support 27 provided on the base 21.
- the rotating shaft 28 is rotated by driving a fourth electric motor M4 provided in the table support portion 27 so that the wafer holding table 95 can be rotated. It can be rotated in the XY plane (horizontal plane).
- the polishing head 30 is attached to the lower end of a spindle 29 provided to extend vertically downward from the third stage 26.
- the spindle 29 is rotated by driving a fifth electric motor M5 provided in the third stage 26, thereby rotating the entire polishing head 30.
- the polishing pad 65 can be rotated in the XY plane (horizontal plane).
- the polishing head 30 is a bottomed cylindrical head having an opening on the lower surface connected to the lower end of the spindle 29 by a bolt B1 via a connecting member 11 as shown in FIG.
- the drive plate 33 is made of a metal plate such as an austenitic stainless steel plate and is formed in a disk shape having a circular hole 33a at the center, and the outer peripheral portion is sandwiched between the holding ring 31 and the ring member 32.
- the c drive plate 3 3 adapted to be secured Te a number of apertures arranged in concentric circles (not shown) is formed, air in the heads housing 1 in 0 each aperture Is allowed to pass.
- the polishing member 50 includes a disc-shaped reference plate 51 mounted on the lower surface of the drive plate 33, and a polishing tool 6 detachably mounted on the lower surface of the reference plate 51 by vacuum suction.
- the reference plate 51 has an upper outer diameter slightly smaller than the inner diameter of the ring member 32 and a lower outer diameter slightly smaller than the inner diameter of the flange 10a at the lower end of the head housing 10 (that is, the diameter of the opening). It has a stepped disk shape. Then, the reference plate 51 closes the opening of the head housing 10 to seal the inside of the head housing 10, and the pressure chamber HI is formed in the head housing 10.
- an air inlet 1 2 is formed, and a spindle
- the air in an air supply passage 80 penetrating the center of the interior of the housing 29 is supplied to the inside of the head housing 10 (pressure chamber H 1) through the intake port 12.
- the air supply path 80 is connected to an air supply source (not shown) (not shown in detail), and the air supplied from the air supply source pressurizes the air pressure in the housing 10 to a desired pressure. It can be adjusted.
- the circular hole of the drive plate 33 is located on the upper surface of the center of the reference plate 51.
- a disk-shaped center member 55 having a radius slightly smaller than 33 a is fixed by a bolt B 4, and the inner peripheral portion of the drive plate 33 centered on the center member 55 is used as a reference. It is sandwiched between the plate 51 and a fixing ring 56 fixed to the upper surface side of the reference plate 51 by bolts B5. This As shown, the reference plate 51 is fixed to the head housing 10 via the drive plate 33, and the rotational driving force of the spindle 29 is applied to the reference plate 51 via the drive plate 33. Is transmitted to.
- the outer diameter of the flange 51 a projecting outward from the outer periphery of the reference plate 51 is formed larger than the inner diameter of the flange 10 a projecting inward from the inner periphery of the lower end of the head housing 10.
- the reference plate 51 does not come out of the head housing 10.
- the polishing tool 60 is mounted on a disk-shaped pad plate 61 having substantially the same outer diameter as the reference plate 51, and on a polishing pad mounting surface 61a which is the lower surface of the pad plate 61. And a circular polishing pad (polishing cloth) 65.
- the polishing pad 65 is a consumable that deteriorates due to polishing, the polishing pad 65 can be detachably attached to the polishing pad mounting surface 61a (for example, with an adhesive) to facilitate replacement work.
- the lower surface of the polishing pad 65 is a polishing surface 66 facing the surface 91 to be polished of the wafer 90.
- an air suction passage 71 having a plurality of suction openings is formed on the lower surface side inside the reference plate 51, and this air suction passage 71 is also provided on the center member 55 side. It extends and opens to the pressure chamber H1 side of the head housing 10.
- a suction pipe 72 extending in the air supply path 80 of the spindle 29 is connected to this opening, and the suction pipe 72 is positioned with the pad plate 61 positioned below the reference plate 51.
- the pad plate 61 can be attached by suction to the reference plate 51 by sucking air from 72 ( here, the pad plate 61 is a sensor provided between the pad plate 61 and the reference plate 51). Centering and positioning in the rotational direction are performed by the turbine P1 and the positioning pins P2.
- a polishing agent connected to a polishing agent supply device is provided in the air supply path 80.
- a supply pipe 81 extends, and a flow passage 83, which is provided through the center member 55, through a connecting member 82 located between the spindle 29 and the center member 55, It is connected to a flow path 84 passing through the evening pin P1, a flow path 85 provided in the pad plate 61, and a flow path (not shown) provided in the polishing pad 65.
- the ring member 32 is formed in a ring shape having an inner diameter slightly larger than the outer diameter of the upper portion of the reference plate 51, and surrounds the upper portion of the reference plate 51 located in the head housing 10.
- the configuration is such that a predetermined gap S1 is generated between the inner peripheral surface of the ring member 32 and the upper outer peripheral surface of the reference plate 51.
- the upper surface of the reference plate 51 receives the air pressure in the pressure chamber H1 at the center upper surface, and the reference plate 51 mounted on the lower surface side of the drive plate 33, that is, the polishing member 50 is moved vertically (surface to be polished). (Toward 9 1).
- the cross-sectional area of the gap S1 becomes very small, and the pressure chamber H formed in the head housing 10 is formed. Since the air inside 1 is prevented from flowing out of the pressure chamber H1 through this gap S1, the pressure chamber is inside the head housing 10 without using a sealing means such as a rubber sheet. H1 can be formed. Therefore, it is possible to prevent the rubber sheet from deforming due to the vertical movement of the polishing member 50 and to prevent the pressure receiving area of the polishing member 50 (the reference plate 51) from changing, and the inside of the head housing 10 is prevented.
- the linearity of the polishing thrust of the polishing member 50 (polishing pad 65) with respect to the air pressure can be improved. Further, control performance in pressurization control when pressing the polishing pad 65 against the wafer 90 can be improved, and processing accuracy of the wafer 90 can be improved.
- a labyrinth space H2 communicating with the pressure chamber H1 via the gap S1 is formed, and an exhaust passage 13 connecting to the labyrinth space H2 is formed on the side of the head housing 10. I have.
- the exhaust passage 13 extends to an exhaust port 14 formed on the upper surface side of the head housing 10, and the air in the head housing 10 flows from the labyrinth space H 2 to the exhaust passage 13. Then, the air passes through the exhaust port 14 and is discharged to the outside of the head housing 10.
- a joint 15 and an exhaust pipe 16 are attached to the exhaust port 14, and the exhaust passage 13 is connected to the exhaust pipe 16 via the joint 15.
- the exhaust pipe 16 is connected to a not-shown vacuum source (details will be described later), so that the air pressure in the head housing 10 can be adjusted to a desired pressure.
- the reaction speed when switching the air pressure in the head housing 10 from pressurized to depressurized (or depressurized to pressurized) is improved.
- the control speed in the pressurization control when pressing the polishing pad 65 against the pressure pad 90 can be improved.
- the wafer 90 to be polished is attached to the upper surface of the wafer holding table 95 by suction (at this time, the wafer 90 is polished).
- the center should be aligned with the rotation center of the wafer holding table 95), and the electric motor M4 is driven to rotate the wafer holding table 95.
- the electric motors M1 to M3 are driven to position the third moving stage 26 above the wafer 90, and the spindle 29 is driven by the electric motor M5 to drive the W polishing head 3 Rotate 0.
- the electric motor M2 is driven to lower the third stage 26, and the lower surface (polishing surface) of the polishing pad 65 is pressed against the upper surface (polishing surface) of the wafer 90.
- the contact pressure between the wafer 90 and the polishing pad 65 is adjusted to a predetermined value by adjusting the air pressure in the pressure chamber H1 by, for example, discharging air from the head housing 10 using an air source.
- the electric motors Ml and M3 are driven to move the polishing head 30 in the XY direction (the in-plane direction of the contact surface between the wafer 90 and the polishing pad 65).
- an abrasive liquid slurry containing silica particles
- the surface to be polished 91 of the wafer 90 is rotated by the rotation of the wafer 90 itself and the rotation of the polishing head 30 (that is, the polishing pad 65) and swings while receiving the supply of the abrasive. Polished by movement.
- the polishing member 50 having the polishing pad 65 is supported by the head housing 10 via the drive plate 33. Therefore, the orientation of the polishing member 50 changes according to the rotational accuracy of the polishing head 30 and the variation in the thickness of the polishing pad 65 due to the natural deformation of the drive plate 33, and the polished surface 91 Perform uniform polishing. :
- An air supply pipe 81 for supplying air into the head housing 10 and an exhaust pipe 16 for discharging air from the head housing 10 are connected to the polishing head 30. Have been.
- the air supply pipe 81 has one end connected to the suction port 12 of the polishing head 30 via the air supply path 80 of the spindle 29 (see FIG. 2), and the other end. Are connected to the air supply source 82.
- a supply side regulator 83 is provided at the other end of the air supply pipe 81 so that the air pressure of the air supplied from the air supply source 82 can be adjusted.
- the air supply source 82 and the supply side regulator 83 are the air supply unit according to the present invention.
- the exhaust pipe 16 has one end connected to the exhaust port 14 of the polishing head 30 via the joint 15 (see FIG. 2), and the other end connected to the vacuum source 84. It has become connected.
- An exhaust side regulator 85 is provided at the other end of the exhaust pipe 16 so that the air pressure in the exhaust pipe 16 can be adjusted.
- the vacuum source 84 and the exhaust side regulator 85 are the air discharge unit according to the present invention.
- the supply-side regulator 83 and the exhaust-side regulator 85 are electrically connected to the pressure control unit 88, and receive an operation signal from the pressure control unit 88 to supply the supply-side regulator. Evening 83 and exhaust side reguille night 85 are activated.
- a differential pressure gauge 86 is provided across the air supply pipe 81 and the exhaust pipe 16.
- the differential pressure gauge 86 has a supply-side pressure measurement unit 86 a that can measure the air pressure in the air supply pipe 81, and an exhaust-side pressure measurement unit 86 b that can measure the air pressure in the exhaust pipe 16. Based on the air pressure in the air supply pipe 81 and the exhaust pipe 16 measured in the supply pressure measurement section 86a and the exhaust pressure measurement section 86b, the air supply pipe 81 The differential pressure between the air pressure and the air pressure in the exhaust pipe 16 is measured, and the measurement signal is output to the pressure control unit 88.
- the pressure control unit 88 is electrically connected to the supply-side regulator 83, the exhaust-side regulator 85, and the differential pressure gauge 86. Then, the pressure control unit 88 controls the polishing head 30 based on the differential pressure between the air pressure in the air supply pipe 81 and the air pressure in the exhaust pipe 16 measured by the differential pressure gauge 86.
- the air pressure in the head housing 10 (pressure chamber HI) is measured, and the supply side regulator is adjusted so that the measured air pressure in the head housing 10 becomes a desired air pressure set in advance. And an operation signal is output to the exhaust side regulator.
- the force control unit 88 measures the air pressure inside the head housing 10 based on the pressure difference between the air pressure inside the air supply pipe 81 and the air pressure inside the exhaust pipe 16 measured by the differential pressure gauge 86. Then, an operation signal is output to the supply side regulator 83 and the exhaust side regulator 85 so that the measured air pressure in the head housing 10 becomes the desired input and set air pressure, and the supply side is output. Activate Regyu-Ye 8 3 and exhaust side Regyu-Ye 8 5.
- the air supplied from the air supply source 82 to the air supply pipe 81 via the supply side regulator 83 is supplied to the air supply passage 80 of the spindle 29 in the air supply pipe 81. After passing through, the air passes through the air inlet 12 and is supplied into the head housing 10. Further, the air in the head housing 10 passes from the exhaust port 14 through the joint 15 and the exhaust pipe 16, and is exhausted from the vacuum source 84 to the outside via the exhaust side regulator 85.
- the reaction speed when switching the air pressure in the head housing 10 from pressurized to depressurized (or depressurized to pressurized) can be improved, and the polishing pad 6
- the control speed in pressurization control when pressing 5 against wafer 90 can be improved.
- the thrust for moving the polishing member 50 (polishing pad 65) downward and the thrust for moving the polishing member 50 upward can be controlled to be substantially the same value.
- the control performance in pressurization control when pressing the gate 65 against the wafer 90 can be improved.
- the differential pressure gauge 86 having the supply-side pressure measurement unit 86a and the exhaust-side pressure measurement unit 86b, the air pressure in the rotating head housing 10 can be easily measured. .
- the polishing head 130 in the second embodiment includes a bottomed cylindrical head housing 110 having an opening on the lower surface connected to the lower end of a spindle (not shown); Ring member attached to upper part in housing 110 1 and 2, a plate holder 140 attached to the upper bottom of the housing 110, and a polishing member 150 held by the plate holder 140. It is composed.
- the plate holding portion 140 is provided on the upper bottom portion of the head housing 110 and extends downward (in a direction toward the surface to be polished 91).
- the four slide guide members 14 1, 14 1,... are arranged on concentric circles of the disk-shaped slide member 14 2 as shown in FIG.
- the slide member 14 is mounted so as to be able to reciprocate vertically (in the direction toward the surface to be polished 91) by using 3.
- a housing part 144 is formed at the lower end of the slide member 142 so that the swing holding member 144 can be attached.
- the movable holding member 1 45 includes a first ring 1 46 attached to and fixed to the housing portion 144 and a first shaft portion 1 46 a on the first ring 1 46.
- the second ring 147 which is swingably connected to the second ring 147 via the second shaft 147 orthogonal to the first shaft 146a.
- 3rd ring 1 4 8 which is connected as possible and 1st shaft 1 4 6 which is rotatably held by 3rd ring 1 4 8 a and a third shaft portion 149 orthogonal to the second shaft portion 147 a.
- the first to third shaft portions 14 46 a, 14 7 a, and 14 9 in which the polishing member 150 (reference plate 15 1) are orthogonal to each other are attached to the swing holding member 14 45. It is swingably mounted and held as a driving shaft.
- the polishing member 150 (Toward the surface to be polished 91) Reciprocally and swingably mounted and held, and the rotational driving force of the spindle is applied to the polishing member 150 (the reference plate 1501) via the plate holder 140. ). As a result, the polishing member 150 can be held vertically and reciprocally (in the direction toward the surface to be polished 91) in a reciprocating and swingable manner without using a drive plate. Since the elastic force does not act on the polishing member 150 (reference plate 15 1) due to deformation, depending on the change in the thickness of the polishing pad 16 5, the polishing member 150 (polishing The error of the polishing thrust of 1 6 5) does not occur. Then, control performance in pressurization control when pressing the polishing pad 165 against the wafer 90 can be improved, and processing accuracy of the wafer 90 can be improved.
- gimbals that have two rotation axes orthogonal to each other and that can transmit rotational motion in two directions may be used as the swing holding members 144, or a universal joint may be used. Good.
- a biasing panel 1338 capable of pressing the piston 1336a is provided in the piston chamber 1337, and the polishing member 150 (the polishing surface 1666) is polished. It may be urged to a position facing the surface 91. This allows the swingable polishing member 150 to be stably held.
- the polishing member 150 is a disk-shaped reference plate 151 mounted and held on a plate holding portion 140, and a polishing tool 1 detachably attached to the lower surface of the reference plate 151 by vacuum suction. 60.
- the reference plate 15 1 has an upper outer diameter that is slightly smaller than the inner diameter of the ring member 13 2, and a lower outer diameter that is the inner diameter of the flange 110 a at the lower end of the head housing 110 (ie, The diameter of the opening is slightly smaller than the diameter of the opening. Then, the reference plate 151 closes the opening of the head housing 110 to seal the inside of the head housing 110, and the pressure chamber H11 is formed in the head housing 110.
- an air inlet 1 1 2 is formed, and the air in the air supply pipe 1 1 1 1 connected to the air inlet 1 1 2 passes through this air inlet 1 1 2
- the head housing 110 is supplied to the inside (pressure chamber H11).
- the air supply pipe 111 is connected to an air supply source (not shown) so that air supplied from the air supply source can adjust the air pressure in the head housing 110 to a desired pressure. It has become.
- a cylindrical center member 155 having a diameter smaller than the circular hole 144a formed in the slide member 142 is fixed on the upper surface of the central part of the reference plate 151.
- the connecting device 18 2 for connecting to the polishing agent supply pipe 18 1 can be attached.
- the outer diameter of the flange 151 a protruding outward from the outer peripheral portion of the reference plate 151 is the same as that of the flange 110 a protruding inward from the lower inner peripheral portion of the head housing 110. It is formed larger than the inner diameter so that the reference plate 15 1 does not come out of the head housing 110. It's swelling.
- the polishing tool 160 includes a disk-shaped pad plate 161, which has substantially the same outer diameter as the reference plate 151, and a polishing pad mounting surface 1 that is a lower surface of the pad plate 161. It consists of a circular polishing pad (polishing cloth) 1 6 5 attached to 6 1 a.
- the polishing pad 165 is a consumable that deteriorates due to polishing, the polishing pad 165 can be detachably attached to the polishing pad mounting surface 161a (for example, with an adhesive). This facilitates replacement work.
- the lower surface side of the polishing pad 165 is a polishing surface 166 opposed to the polished surface 91 of the wafer 90.
- an air suction passage (not shown) having a plurality of suction openings (not shown) on the lower surface side is provided inside the reference plate 15 1.
- the air suction passage extends to the center member 1505 side and opens to the pressure chamber H11 side of the head housing 110.
- a suction pipe (not shown) is connected to this opening, and air is drawn in from this suction pipe with the pad plate 161 positioned on the lower surface side of the reference plate 151, thereby forming a pump.
- the plate 16 1 can be attached by suction to the reference plate 15 1.
- the pad plate 16 1 is centered and positioned in the rotational direction by a center pin P 11 and a positioning pin P 12 provided between the pad plate 16 1 and the reference plate 15 1.
- an abrasive supply pipe 181 which is connected to an abrasive supply device (not shown), is connected to a connecting member 182 attached to the central member 1555.
- the ring member 13 2 is formed in a ring shape having an inner diameter slightly larger than the upper outer diameter of the reference plate 15 1, and is located in the head housing 110. It is configured so that a predetermined gap S11 is created between the inner peripheral surface of the ring member 132 and the upper peripheral surface of the reference plate 151, surrounding the upper part of the reference plate 151 to be placed. .
- the polishing member 150 moves up and down. It is possible to reciprocate in the direction (direction toward the polished surface 91).
- a pressure chamber H 1 1 can be formed inside 0.
- a labyrinth space H12 communicating with the pressure chamber H11 through a gap S11 is formed between the lower surface of the ring member 132 and the upper surface of the edge of the reference plate 151.
- An exhaust passage 113 connected to the labyrinth space H12 is formed on the side of the head housing 110.
- the exhaust passage 113 extends to the exhaust port 114 formed on the upper surface of the head housing 110, and the air in the housing 110 and the labyrinth space is formed by the air in the housing 110.
- H 12 passes through the exhaust passage 1 13 and the exhaust port 1 14 and is discharged to the outside of the head housing 110. 4 007899
- a joint 1 15 and an exhaust pipe 1 16 are attached to the exhaust port 1 1 4 so that the exhaust passage 1 1 3 is connected to the exhaust pipe 1 1 6 via the joint 1 1 5. ing.
- the exhaust pipe 116 is connected to a vacuum source (not shown) so that the air pressure in the head housing 110 can be reduced to a desired pressure.
- the air pressure in the head housing 110 is switched from pressurized to depressurized (or from depressurized to pressurized). In this case, the reaction speed can be improved, and the control speed in the pressurization control when the polishing pad 165 is pressed against the wafer 90 can be improved.
- the wafer 90 to be polished is attached by suction onto the upper surface of the wafer holding table 95 (at this time, the wafer 90 is polished).
- the center of 90 is matched with the rotation center of the wafer holding table 95), and the electric motor M4 is driven to rotate the holding table 95.
- the electric motors M1 to M3 are driven to position the third moving stage 26 above the wafer 90, and the spindle is driven by the electric motor M5 to remove the polishing head 130. Rotate.
- the third stage 26 is lowered by driving the electric motor M2, and the lower surface (polishing surface) of the polishing pad 1665 is pressed against the upper surface (polishing surface) of the substrate 90.
- the polishing member 150 having the polishing pad 165 is moved upward and downward by the plate holding portion 140. Since it is attached and held so that it can reciprocate and oscillate, it depends on the rotational accuracy of the polishing head 130 and the thickness variation of the polishing pad 165. The posture of the polishing member 150 changes, and the surface to be polished 91 is uniformly polished.
- the polishing head 230 in the third embodiment is a bottom cylindrical head having an opening on the lower surface side connected to the lower end of the spindle 229 via a connecting member 211 with a bolt B21.
- the head housing 210 includes a cylindrical first housing part 210 a having a bottom, a ring-shaped second housing part 210 b assembled to the first housing part 210 a, and a third housing. It comprises a part 210c and a third housing part 210d, which are assembled into a bottomed cylindrical shape having an opening on the lower surface side.
- the drive plate 2 41 of the plate holding portion 240 is sandwiched between the first housing portion 210 a and the second housing portion 210 b, and the second housing portion 210 b
- the ring member 232 is sandwiched between the third housing portion 210c and the third housing portion 210c.
- the plate holding part 240 is located at the center of the disk-shaped drive plate 241, attached to the inside of the head housing, and at the center of the drive plate 241, Using the first retaining ring 2 4 2 and the second retaining ring 2 4 3 attached, and the linear push 2 4 4 on the first retaining ring 2 4 2, vertically (toward the surface to be polished 9 1) It comprises a plurality of slide shafts 245 which are held so as to be able to reciprocate and whose lower end is connected and fixed to the reference plate 251 of the polishing member 250.
- the drive plate 241 is made of a metal plate such as an austenitic stainless steel plate and is formed in a disk shape having a circular hole 241a at the center, and the outer peripheral portions thereof are the first housing portion 210a and the second housing portion 210a.
- the housing part 210 b is sandwiched and fixed.
- the drive plate 241 has a large number of concentrically arranged openings (not shown) formed therein so that the air in the head housing 210 can pass through each of the openings. I have.
- the first retaining ring 2 42 and the second retaining ring 2 43 are located in the circular hole 2 41 a of the drive plate 2 41 so as to sandwich the inner peripheral portion of the drive plate 2 41. It is fixed to it.
- a plurality of linear pushes 244 are attached to the first retaining ring 244, and a slide shaft 245 is vertically mounted on the linear bush 244 (in a direction toward the surface to be polished 91). It is designed to be reciprocally movable.
- polishing member 250 is moved upward and downward by the plate holding portion 240 using the elastic deformation of the drive plate 241 and the reciprocating movement l
- the polishing member 250 is composed of a disk-shaped reference plate 251, which is mounted and held on a plate holding portion 240, and a polishing tool 2 which is detachably attached to the lower surface of the reference plate 251, by vacuum suction. 60.
- the reference plate 25 1 has an upper outer diameter slightly smaller than the inner diameter of the ring member 2 32, It is formed in a stepped disk shape having an outer diameter slightly smaller than the inner diameter (ie, the diameter of the opening) of the flange 210 e at the lower end of the head housing 210. Then, the reference plate 251 closes the opening of the head housing 210 to seal the inside of the head housing 210, and a pressure chamber H21 is formed in the head housing 210.
- an air inlet 221 is formed, and the air in the air supply passage 280 formed through the center of the spindle 229 is supplied to the air inlet 221. 2 and is supplied to the inside of the head housing 210 (pressure chamber H 21).
- the air supply path 280 is connected to a not-shown air supply source, so that the air pressure in the head housing 210 can be adjusted to a desired pressure by air supplied from the air supply source.
- a cylindrical central member 255 having a diameter smaller than the circular hole 242a formed in the first holding ring 242 is fixed to the upper surface side of the center portion of the reference plate 251.
- a connection tool 282 to the abrasive supply pipe 281 is attached.
- the outer diameter of the flange 25a protruding outward from the outer peripheral portion of the reference plate 251 is the same as that of the flange 210 e protruding inward from the lower inner peripheral portion of the head housing 210. It is formed larger than the inner diameter so that the reference plate 25 1 does not fall out of the head housing 210.
- the polishing tool 260 includes a disk-shaped pad plate 261, having substantially the same outer diameter as the reference plate 251, and a polishing pad mounting surface 161, which is the lower surface of the pad plate 261, It consists of a circular polishing pad (polishing cloth) 165 attached to the surface. Since the polishing pad 265 is a consumable that deteriorates due to polishing, the polishing pad 265 can be detachably attached to the polishing pad mounting surface 261a (for example, with an adhesive) and replaced. Makes work easier. In addition, 9
- the lower surface side of the polishing pad 260 is a polishing surface 260 facing the surface 91 to be polished 90.
- an air suction path (not shown) having a plurality of suction openings (not shown) on the lower surface side is provided inside the reference plate 251.
- the air suction passage extends to the center member 255 side and opens to the pressure chamber H 21 side of the head housing 210.
- a suction pipe (not shown) is connected to this opening, and by sucking air from the suction pipe with the pad plate 2261 positioned on the lower surface side of the reference plate 251, The pad plate 26 1 can be attached by suction to the reference plate 25 1.
- centering and rotation direction positioning of the pad plate 26 1 are performed by the center pin P 21 provided between the reference plate 25 1 and the positioning bin P 22.
- an abrasive supply pipe 281 which is connected to an abrasive supply device (not shown), is connected to a connector 282 attached to the central member 255, and through this connector 2882, The flow path 283 provided through the member 255, the flow path 284 passing through the pin P21, the pad plate 261 and the polishing pad 265 It is connected to the provided channel (not shown).
- the ring member 2 32 is formed in a ring shape having an inner diameter slightly larger than the outer diameter of the upper portion of the reference plate 251, and the upper portion of the reference plate 25 1 located in the head housing 210 is formed.
- a predetermined gap S 21 is formed between the inner peripheral surface of the ring member 23 and the upper outer peripheral surface of the reference plate 25 1.
- the upper surface of the center of the reference plate 25 1 receives the air pressure in the pressure chamber H 21, and the reference plate 25 1 attached to and held by the plate holding portion 240, that is, the polishing member 250 is It can reciprocate vertically (in the direction toward the surface to be polished 91).
- the inner diameter of the ring member 2 32 becomes the upper outer diameter of the reference plate 25 1. Since it is slightly larger, the cross-sectional area of the gap S 21 becomes very small, and the air in the pressure chamber H 21 formed in the head housing 210 passes through this gap S 21 and the pressure chamber
- the pressure chamber H 21 can be formed inside the head housing 210 without using sealing means such as a rubber sheet because the H 21 is prevented from flowing out of the H 21. Therefore, it is possible to prevent the rubber sheet from being deformed due to the vertical movement of the polishing member 250 and the pressure receiving area of the polishing member 250 (reference plate 25 1) from being changed.
- the linearity of the polishing thrust of the polishing member 250 (polishing pad 265) with respect to the air pressure within 0 can be improved.
- control performance in pressurization control when pressing the polishing pad 265 against the wafer 90 can be improved, and processing accuracy of the wafer 90 can be improved.
- a labyrinth space H 22 communicating with the pressure chamber H 21 via a gap S 21 is formed between the lower surface of the ring member 2 32 and the upper surface of the edge of the reference plate 25 1.
- An exhaust passage 2 13 connected to the labyrinth space H 22 is formed on the side of the head housing 210.
- the exhaust passage 2 13 extends to the exhaust port 2 14 formed on the upper surface side of the head housing 2 10, and the air in the head housing 2 10 flows into the labyrinth space H 2 2
- the exhaust gas passes through the exhaust passage 2 13 and the exhaust port 2 14 to be discharged to the outside of the head housing 210.
- a joint 2 15 and an exhaust pipe 2 16 are attached to the exhaust port 2 14, and the exhaust passage 2 13 is connected to the exhaust pipe 2 16 via the joint 2 15. ing.
- the exhaust pipe 2 16 is connected to a vacuum source (not shown) so that the air pressure in the head housing 210 can be adjusted to a desired pressure.
- the air pressure in the head housing 210 is switched from pressurized to depressurized (or from depressurized to pressurized). Reaction speed can be improved, The control speed in the pressurization control when pressing the polishing pad 265 against the wafer 90 can be improved.
- the wafer 90 to be polished is attached by suction onto the upper surface of the wafer holding table 95 (at this time, the wafer 90 is polished).
- the center of 90 is matched with the rotation center of wafer holding table 95), and electric motor M4 is driven to rotate wafer holding table 95.
- the electric motors M1 to M3 are driven to position the third moving stage 26 above the axis 90, and the spindle is driven by the electric motor M5 to polish the polishing head 230. Rotate.
- the electric motor M2 is driven to lower the third stage 26, so that the lower surface (polishing surface) of the polishing pad 26 5 is pressed against the upper surface (polishing surface) of the substrate 90. I do.
- air is supplied from the air supply source into the head housing 210 or air is exhausted from the head housing 210 using a vacuum source to reduce the air pressure in the pressure chamber H 21.
- the contact pressure between the wafer 90 and the polishing pad 265 is adjusted to a predetermined value.
- the electric motors Ml and M3 are driven to swing the polishing head 230 in the X and Y directions (the in-plane direction of the contact surface between the wafer 90 and the polishing pad 265).
- an abrasive (a liquid slurry containing silica particles) is pressure-fed from the abrasive supply device to supply the abrasive to the lower surface side of the polishing pad 265.
- the surface 91 to be polished of the wafer 90 is rotated by the rotation of the wafer 90 itself and the polishing head 230 (that is, the polishing pad 265) while being supplied with the abrasive. Polished by rotation and swinging motion.
- the polishing member 250 having the polishing pad 265 is moved upward and downward by the plate holding portion 240 (to be polished). (In the direction toward surface 91) Reciprocally movable and swingable, so that the polishing member can be adjusted according to the rotational accuracy of the polishing head 230 and the variation in the thickness of the polishing pad 265.
- the posture of 250 changes and the surface to be polished 9 1 Is uniformly polished.
- FIG. 8 is a flowchart showing a semiconductor device manufacturing process.
- an appropriate processing step is selected from the following steps S201 to S204, and the process proceeds to any one of the steps.
- step S201 is an oxidation step of oxidizing the surface of the wafer.
- Step S202 is a CVP process of forming an insulating film or a dielectric film on the wafer surface by CVP or the like.
- Step S203 is an electrode forming step of forming electrodes on the wafer by vapor deposition or the like.
- Step S204 is an ion implantation step of implanting ions into the wafer.
- Step S205 is a CMP step.
- the polishing apparatus according to the present invention performs planarization of an interlayer insulating film, polishing of a metal film on a semiconductor device surface, polishing of a dielectric film, and the like, and a damascene process may be used. is there.
- Step S206 is a photolithography step.
- the resist is applied to the wafer, the circuit pattern is printed on the wafer by exposure using an exposure apparatus, and the exposed wafer is developed.
- the next step S207 is an etching step of removing portions other than the developed resist image by etching, and then removing the resist after etching to remove unnecessary resist.
- step S208 it is determined in step S208 whether all necessary steps have been completed. If not, the process returns to step S200, and the previous steps are repeated to form a circuit pattern on the wafer. Step S208 indicates that all processes are completed. If judged, it will be an end.
- the polishing apparatus according to the present invention since the polishing apparatus according to the present invention is used in the CMP step, the processing accuracy and the yield of the wafer are improved. Thereby, there is an effect that a semiconductor device can be manufactured at a lower cost than a conventional semiconductor device manufacturing method.
- the polishing apparatus according to the present invention may be used in the CMP step of a semiconductor device manufacturing process other than the above semiconductor device manufacturing process. Further, a semiconductor device manufactured by the semiconductor device manufacturing method according to the present invention has a high yield and is a low-cost semiconductor device.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/290,815 US7175508B2 (en) | 2003-06-03 | 2005-12-01 | Polishing apparatus, method of manufacturing semiconductor device using the same, and semiconductor device manufactured by this method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-158072 | 2003-06-03 | ||
| JP2003158072A JP4465645B2 (ja) | 2003-06-03 | 2003-06-03 | 研磨装置、これを用いた半導体デバイス製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/290,815 Continuation US7175508B2 (en) | 2003-06-03 | 2005-12-01 | Polishing apparatus, method of manufacturing semiconductor device using the same, and semiconductor device manufactured by this method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004108357A1 true WO2004108357A1 (ja) | 2004-12-16 |
Family
ID=33508412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/007899 Ceased WO2004108357A1 (ja) | 2003-06-03 | 2004-06-01 | 研磨装置、これを用いた半導体デバイス製造方法およびこの方法により製造される半導体デバイス |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7175508B2 (ja) |
| JP (1) | JP4465645B2 (ja) |
| KR (1) | KR20060017627A (ja) |
| TW (1) | TW200523064A (ja) |
| WO (1) | WO2004108357A1 (ja) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4611841B2 (ja) * | 2005-08-22 | 2011-01-12 | 株式会社住友金属ファインテック | 研磨装置 |
| JP5184910B2 (ja) * | 2008-02-13 | 2013-04-17 | 株式会社岡本工作機械製作所 | 基板の平面研削装置 |
| JP2011516289A (ja) * | 2008-04-09 | 2011-05-26 | アプライド マテリアルズ インコーポレイテッド | トラックを有する研磨システム |
| KR101057228B1 (ko) * | 2008-10-21 | 2011-08-16 | 주식회사 엘지실트론 | 경면연마장치의 가압헤드 |
| JP2017205838A (ja) * | 2016-05-19 | 2017-11-24 | 株式会社Bbs金明 | 板状基板の片面ポリッシング装置 |
| CN108247455B (zh) * | 2018-01-10 | 2023-08-22 | 池州市星聚信息技术服务有限公司 | 一种硅片单面处理装置 |
| CN116423384B (zh) * | 2023-03-27 | 2024-06-21 | 苏州大学 | 一种电化学机械抛光头及抛光装置 |
| US20260021551A1 (en) * | 2024-07-19 | 2026-01-22 | Applied Materials, Inc. | Chemical mechanical polishing using flexure mounted pad |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05277914A (ja) * | 1992-04-02 | 1993-10-26 | Kansai Plant Kogyo:Kk | 平板の研摩方法及びその装置 |
| JPH07314327A (ja) * | 1994-05-20 | 1995-12-05 | Sony Corp | ウエハ研磨装置およびその方法 |
| JP2001232553A (ja) * | 1999-12-17 | 2001-08-28 | Fujikoshi Mach Corp | ウェーハの研磨装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69325756T2 (de) * | 1992-09-24 | 2000-03-02 | Ebara Corp., Tokio/Tokyo | Poliergerät |
| US5908530A (en) * | 1995-05-18 | 1999-06-01 | Obsidian, Inc. | Apparatus for chemical mechanical polishing |
| US5681215A (en) * | 1995-10-27 | 1997-10-28 | Applied Materials, Inc. | Carrier head design for a chemical mechanical polishing apparatus |
| JP3807807B2 (ja) | 1997-02-27 | 2006-08-09 | 株式会社荏原製作所 | ポリッシング装置 |
| US5857899A (en) * | 1997-04-04 | 1999-01-12 | Ontrak Systems, Inc. | Wafer polishing head with pad dressing element |
| US6146241A (en) * | 1997-11-12 | 2000-11-14 | Fujitsu Limited | Apparatus for uniform chemical mechanical polishing by intermittent lifting and reversible rotation |
| JP3076291B2 (ja) | 1997-12-02 | 2000-08-14 | 日本電気株式会社 | 研磨装置 |
| US6251215B1 (en) | 1998-06-03 | 2001-06-26 | Applied Materials, Inc. | Carrier head with a multilayer retaining ring for chemical mechanical polishing |
| TW477733B (en) | 1999-12-17 | 2002-03-01 | Fujikoshi Machinery Corp | Abrasive machine |
| US6612915B1 (en) * | 1999-12-27 | 2003-09-02 | Nutool Inc. | Work piece carrier head for plating and polishing |
| JP2001298008A (ja) * | 2000-04-14 | 2001-10-26 | Sony Corp | 研磨方法および研磨装置 |
-
2003
- 2003-06-03 JP JP2003158072A patent/JP4465645B2/ja not_active Expired - Lifetime
-
2004
- 2004-06-01 WO PCT/JP2004/007899 patent/WO2004108357A1/ja not_active Ceased
- 2004-06-01 KR KR1020057023155A patent/KR20060017627A/ko not_active Withdrawn
- 2004-06-03 TW TW093115890A patent/TW200523064A/zh not_active IP Right Cessation
-
2005
- 2005-12-01 US US11/290,815 patent/US7175508B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05277914A (ja) * | 1992-04-02 | 1993-10-26 | Kansai Plant Kogyo:Kk | 平板の研摩方法及びその装置 |
| JPH07314327A (ja) * | 1994-05-20 | 1995-12-05 | Sony Corp | ウエハ研磨装置およびその方法 |
| JP2001232553A (ja) * | 1999-12-17 | 2001-08-28 | Fujikoshi Mach Corp | ウェーハの研磨装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4465645B2 (ja) | 2010-05-19 |
| KR20060017627A (ko) | 2006-02-24 |
| US20060148384A1 (en) | 2006-07-06 |
| TW200523064A (en) | 2005-07-16 |
| TWI327091B (ja) | 2010-07-11 |
| JP2004358590A (ja) | 2004-12-24 |
| US7175508B2 (en) | 2007-02-13 |
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