WO2021210380A1 - 接合システム - Google Patents
接合システム Download PDFInfo
- Publication number
- WO2021210380A1 WO2021210380A1 PCT/JP2021/013436 JP2021013436W WO2021210380A1 WO 2021210380 A1 WO2021210380 A1 WO 2021210380A1 JP 2021013436 W JP2021013436 W JP 2021013436W WO 2021210380 A1 WO2021210380 A1 WO 2021210380A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- transfer device
- processing block
- joining
- load lock
- Prior art date
Links
- 238000005304 joining Methods 0.000 title claims description 114
- 239000000758 substrate Substances 0.000 claims abstract description 323
- 230000004308 accommodation Effects 0.000 claims abstract 3
- 230000004048 modification Effects 0.000 claims description 43
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- 238000007689 inspection Methods 0.000 claims description 27
- 238000006116 polymerization reaction Methods 0.000 claims description 20
- 239000003607 modifier Substances 0.000 claims description 11
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- 235000012431 wafers Nutrition 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 2
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- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/34—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies not provided for in groups H01L21/0405, H01L21/0445, H01L21/06, H01L21/16 and H01L21/18 with or without impurities, e.g. doping materials
- H01L21/44—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/38 - H01L21/428
- H01L21/447—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/38 - H01L21/428 involving the application of pressure, e.g. thermo-compression bonding
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Definitions
- This disclosure relates to a joining system.
- the bonding system using this method includes a surface modifier that modifies the junction surface of the first and second substrates, and a hydrophilization apparatus that hydrophilizes the junction surface of the first and second substrates after modification. It is provided with a joining device for joining the first and second substrates after hydrophilization. Further, the joining system includes a plurality of substrate transfer devices that transfer the first and second substrates between the devices.
- An object of the present disclosure is to provide a joining system capable of reducing the footprint, which is the ratio of the joining system to the floor area of a clean room or the like.
- the bonding system is a bonding system that forms a polymerized substrate by bonding a first substrate and a second substrate by an intramolecular force, and is a bonding system in which a first transfer device and a second transfer device and a third transfer device are formed. It is provided with a transfer device, a load lock chamber, and a plurality of gates.
- the first transfer device and the second transfer device convey the first substrate and the second substrate in a normal pressure atmosphere.
- the third transfer device conveys the first substrate and the second substrate in a reduced pressure atmosphere.
- the load lock chamber has an accommodating portion capable of accommodating the first substrate and the second substrate, and the accommodating portion can be switched between a normal pressure atmosphere and a reduced pressure atmosphere.
- a plurality of gates are provided on three different sides of the load lock chamber, and the load lock chamber can be opened and closed. Further, the first transfer device, the second transfer device, and the third transfer device carry in and out the first substrate and the second substrate to and from the load lock chamber via different gates among the plurality of gates.
- the footprint can be reduced.
- FIG. 1 is a schematic plan view showing the configuration of the joining system according to the embodiment.
- FIG. 2 is a schematic plan view showing the configuration of the joining system according to the embodiment.
- FIG. 3 is a layout diagram of the joining system according to the embodiment.
- FIG. 4 is a schematic side view of the first substrate and the second substrate.
- FIG. 5 is a diagram showing a configuration of a joining device according to an embodiment.
- FIG. 6 is a plan view of the load lock chamber according to the embodiment.
- FIG. 7 is a side view of the load lock chamber according to the embodiment as viewed from the access direction of the first transfer device.
- FIG. 8 is a side view of the load lock chamber according to the embodiment as viewed from the access direction of the second transfer device.
- FIG. 1 is a schematic plan view showing the configuration of the joining system according to the embodiment.
- FIG. 2 is a schematic plan view showing the configuration of the joining system according to the embodiment.
- FIG. 3 is a layout diagram of the joining system according to the embodiment
- FIG. 9 is a side view of the load lock chamber according to the embodiment as viewed from the access direction of the third transfer device.
- FIG. 10 is a flowchart showing a transfer procedure of the first substrate, the second substrate, and the polymerization substrate in the bonding system according to the embodiment.
- FIG. 11 is a diagram showing an arrangement example of the inspection device.
- FIG. 12 is a diagram showing an arrangement example of the inspection device.
- FIG. 13 is a diagram showing an arrangement example of the inspection device.
- FIG. 14 is a schematic plan view showing the configuration of the joining system according to the second modification.
- FIGS. 1 to 3. 1 and 2 are schematic plan views showing the configuration of the joining system according to the embodiment.
- the joining system according to the embodiment is roughly divided into a two-layer structure of an upper layer and a lower layer.
- the structure of the lower layer is mainly shown in FIG. 1, and the structure of the upper layer is mainly shown in FIG. It is shown.
- FIG. 3 is a layout diagram of the joining system according to the embodiment.
- FIG. 4 is a schematic side view of the first substrate and the second substrate.
- the joining system 1 forms a polymerized substrate T by joining the first substrate W1 and the second substrate W2 (see FIG. 4).
- the first substrate W1 is a substrate in which a plurality of electronic circuits are formed on a semiconductor substrate such as a silicon wafer or a compound semiconductor wafer. Further, the second substrate W2 is, for example, a bare wafer on which no electronic circuit is formed. The first substrate W1 and the second substrate W2 have substantially the same diameter.
- An electronic circuit may be formed on the second substrate W2.
- a wafer containing gallium arsenide, silicon carbide, gallium nitride, indium phosphide and the like can be used, but the wafer is not limited thereto.
- the joining system 1 includes a loading / unloading block 2 and a processing block 3. Further, the processing block 3 includes a first processing block 3a and a second processing block 3b.
- the carry-in / out block 2, the first processing block 3a, and the second processing block 3b are integrally arranged in the order of the carry-in / out block 2, the first processing block 3a, and the second processing block 3b along the positive direction of the X axis. Connected to.
- the carry-in / out block 2 includes a mounting stand 10 and a carrying area 20.
- the mounting table 10 includes a plurality of mounting plates 11a to 11d.
- Cassettes C1 to C4 capable of horizontally accommodating a plurality of (for example, 25) substrates are mounted on the mounting plates 11a to 11d, respectively.
- the cassette C1 is a cassette accommodating the first substrate W1
- the cassette C2 is a cassette accommodating the second substrate W2
- the cassette C3 is a cassette accommodating the polymerization substrate T.
- the cassette C4 is, for example, a cassette for collecting a defective substrate.
- the first substrate W1 and the second substrate W2 are housed in the same orientation with the joint surface facing up.
- the transport area 20 is arranged adjacent to the X-axis positive direction side of the mounting table 10.
- the transport area 20 is provided with a transport path 21 extending in the Y-axis direction and a first transport device 22 that can move along the transport path 21.
- the first transfer device 22 has, for example, a transfer arm that can move in the vertical direction, the horizontal direction, and around the vertical axis.
- the first transfer device 22 uses such a transfer arm to form the first substrate W1, the second substrate W2, and the cassettes C1 to C3 mounted on the mounting plates 11a to 11c between the cassettes C1 to C3 and the first processing block 3a.
- the polymerization substrate T is conveyed.
- the first transfer device 22 takes out the first substrate W1 from the cassette C1 and conveys it to the first processing block 3a. Further, the first transfer device 22 takes out the second substrate W2 from the cassette C2 and conveys it to the first processing block 3a. Further, the first transfer device 22 receives the polymerization substrate T from the first processing block 3a and stores it in the cassette C3.
- the mounting plates 11a to 11d may be described as "FUST", and the first transport device 22 may be described as "CRA".
- the processing block 3 (first processing block 3a and second processing block 3b) includes a transport area 3c extending along the X-axis direction and two processing areas 3d and 3e arranged so as to sandwich the transport area 3c. ..
- the processing area 3d is arranged on the Y-axis positive direction side of the transport area 3c
- the processing area 3e is arranged on the Y-axis negative direction side of the transport area 3c.
- the processing block 3 has a two-layer structure of a lower layer and an upper layer, and this point will be described later.
- the first processing block 3a is adjacent to the transport area 20 of the carry-in / out block 2.
- the first laminated portion 31, the second conveying device 32, and the second laminated portion 33 are arranged in the transport area 3c of the first processing block 3a.
- the first laminated portion 31, the second transport device 32, and the second laminated portion 33 are arranged in the order of the first laminated portion 31, the second transport device 32, and the second laminated portion 33 along the positive direction of the X axis.
- the first laminated portion 31 is arranged between the transport area 20 of the carry-in / out block 2 and the second transport device 32.
- the second laminated portion 33 is arranged between the second transport device 32 and the transport area 3c of the second processing block 3b.
- the second transfer device 32 is arranged between the first laminated portion 31 and the second laminated portion 33.
- a plurality of modules are laminated in the Z-axis direction on the first laminated portion 31 and the second laminated portion 33.
- the reading unit 31a, the first temporary storage unit 31b, the two first delivery units 31c, and the two load lock chambers 31d are laminated on the first stacking unit 31.
- the reading unit 31a, the first temporary storage unit 31b, the two first delivery units 31c, and the two load lock chambers 31d are, for example, in order from the bottom, the reading unit 31a, the first temporary installation unit 31b, and the two first delivery units.
- the 31c and the two load lock chambers 31d are laminated in this order.
- the reading unit 31a is a module that reads the identification information attached to the first substrate W1 and the second substrate W2.
- the first temporary placement portion 31b is a place where the first substrate W1 and the second substrate W2 are temporarily placed. For example, when the position of the first substrate W1 or the second substrate W2 held by the second transfer device 32 deviates from the reference position, the second transfer device 32 temporarily mounts the substrate on the first temporary placement portion 31b. By placing and re-installing, the misalignment of the substrate can be eliminated.
- the first delivery unit 31c is a place where the polymerization substrate T is placed. Specifically, the polymerization substrate T is delivered from the second transfer device 32 to the first transfer device 22 at the first transfer unit 31c.
- the load lock chamber 31d has an accommodating portion capable of accommodating the first substrate W1 and the second substrate W2.
- the accommodating portion of the load lock chamber 31d is connected to a suction device such as a vacuum pump via a suction pipe, and the accommodating portion can be switched between a normal pressure atmosphere and a reduced pressure atmosphere by the suction device.
- the two load lock chambers 31d are not laminated and are arranged side by side in the horizontal direction (Y-axis direction) (see FIG. 1).
- the specific configuration of the load lock chamber 31d will be described later.
- the reading unit 31a may be described as "WID"
- the first temporary storage unit 31b may be described as “THS”
- the first delivery unit 31c may be described as “TRS”
- the load lock chamber 31d may be described as "LLS”.
- the second temporary placement portion 33a, the second delivery portion 33b, the third delivery portion 33c, the second alignment portion 33d, and the first alignment portion 33e are laminated on the second laminated portion 33.
- the second temporary placement portion 33a is a place where the first substrate W1 and the second substrate W2 are temporarily placed, like the first temporary placement portion 31b arranged in the first laminated portion 31.
- the second delivery portion 33b is a place where the polymerization substrate T is placed.
- the polymerization substrate T is delivered from the fourth transfer device 37 to the second transfer device 32, which will be described later, in the second transfer section 33b.
- the third delivery section 33c is a delivery section having a reversing mechanism.
- the third delivery unit 33c for example, inverts the first substrate W1 that has not been joined by the joining device 39 described later.
- the second alignment unit 33d is a module that performs alignment processing of the second substrate W2.
- the second alignment unit 33d includes a holding unit that attracts and holds the second substrate W2 and rotates it, and a detection unit that detects the position of the notch portion of the second substrate W2.
- the second alignment unit 33d adjusts the position of the notch portion by detecting the position of the notch portion of the second substrate W2 by the detection unit while rotating the second substrate W2 that is attracted and held by the holding portion.
- the horizontal orientation of the two substrates W2 can be adjusted.
- the first alignment unit 33e is a module that performs alignment processing of the first substrate W1.
- a reversing mechanism for reversing the first substrate W1 held by the holding unit is provided.
- the first alignment unit 33e can adjust the horizontal orientation of the first substrate W1 and can reverse the front and back of the first substrate W1.
- the second temporary placement portion 33a is “THS”
- the second delivery portion 33b is “TRS”
- the third delivery portion 33c is “RTRS”
- the second alignment portion 33d is "NAM”
- the first alignment is performed.
- Part 33e may be referred to as "RNAM”.
- the second transfer device 32 has, for example, a transfer arm that can move in the vertical direction, the horizontal direction, and around the vertical axis.
- the second transfer device 32 uses a transfer arm to polymerize the first substrate W1, the second substrate W2, and the surface hydrophilic device 36, which will be described later, between the first laminated portion 31, the second laminated portion 33, and the surface hydrophilic device 36, which will be described later.
- the substrate T is conveyed.
- a third transport device 34 In the processing areas 3d and 3e of the first processing block 3a, a third transport device 34, a surface modification device 35, and a plurality of (here, two) surface hydrophilization devices 36 are arranged, respectively.
- the third transfer device 34 and the surface modification device 35 are arranged in the order of the third transfer device 34 and the surface modification device 35 along the positive direction of the X axis. Further, the two surface hydrophilization devices 36 are laminated with each other and arranged so as to straddle the upper part of the third transfer device 34 (specifically, the transfer chamber 34a) and the surface modification device 35 (FIG. 3). reference). The surface hydrophilization device 36 may be arranged below the third transfer device 34 (specifically, the transfer chamber 34a) and the surface modification device 35.
- the surface hydrophilization device 36 is arranged above or below the third transfer device 34 (transfer chamber 34a) and the surface modification device 35.
- the suction device and the suction pipe connected to the transfer chamber 34a and the surface modification device 35 can be arranged together, so that the entire system can be miniaturized.
- the third transport device 34 is arranged in a transport chamber 34a whose inside can be sealed.
- the third transfer device 34 has, for example, a transfer arm that can move in the vertical direction, the horizontal direction, and around the vertical axis.
- the third transfer device 34 uses a transfer arm to transfer the first substrate W1 and the second substrate W2 between the load lock chamber 31d and the surface modification device 35.
- the transport chamber 34a is adjacent to the load lock chamber 31d and is adjacent to the surface modifier 35.
- a suction device such as a vacuum pump is connected to the transfer chamber 34a via a suction pipe. When the suction device is activated, the inside of the transport chamber 34a is decompressed to create a decompressed atmosphere.
- the transport chamber 34a is always in a decompressed atmosphere by a suction device. In this way, the third transfer device 34 conveys the first substrate W1 and the second substrate W2 in a reduced pressure atmosphere.
- the first transfer device 22 and the second transfer device 32 described above convey the first substrate W1 and the second substrate W2 in a normal pressure atmosphere.
- the normal pressure is, for example, atmospheric pressure, it does not have to be exactly the same as atmospheric pressure, and may include a pressure range of, for example, ⁇ 10 kPa with respect to atmospheric pressure.
- the surface modifier 35 is connected to the transport chamber 34a via the gate valve 105.
- a suction device such as a vacuum pump is connected to the surface modification device 35 via a suction pipe. When the suction device is activated, the surface modifier 35 decompresses the room to create a decompressed atmosphere. Like the transport chamber 34a, the surface modifier 35 is always in a depressurized atmosphere.
- the surface modifier 35 modifies the joint surface of the first substrate W1 and the second substrate W2 in a reduced pressure atmosphere. Specifically, the surface modifier 35 cuts the bond of SiO2 at the bonding surface of the first substrate W1 and the second substrate W2 to form a single bond SiO, so that the surface reformer 35 can be easily hydrophilized thereafter. Modify the joint surface.
- oxygen gas which is a processing gas
- a reduced pressure atmosphere to be turned into plasma and ionized.
- the joint surfaces of the first substrate W1 and the second substrate W2 are plasma-treated and modified.
- the surface hydrophilization device 36 hydrophilizes the joint surfaces of the first substrate W1 and the second substrate W2 with a hydrophilic treatment liquid such as deionized water, and cleans the joint surfaces.
- a hydrophilic treatment liquid such as deionized water
- deionized water is supplied onto the first substrate W1 or the second substrate W2 while rotating the first substrate W1 or the second substrate W2 held by the spin chuck.
- the deionized water supplied on the first substrate W1 or the second substrate W2 diffuses on the joint surface of the first substrate W1 or the second substrate W2, and the joint surface becomes hydrophilic.
- the second transfer device 32 is described as "PRA”
- the third transfer device 34 is described as “VSRA”
- the surface modification device 35 is described as “SAP”
- the surface hydrophilization device 36 is described. May be described as "SCR”.
- the second processing block 3b is adjacent to the second laminated portion 33 of the first processing block 3a.
- the fourth transport device 37, the third temporary storage portion 38a, and the fourth temporary storage portion 38b are arranged in the transport area 3c of the second processing block 3b.
- the fourth transfer device 37 is arranged between the second laminated portion 33 of the first processing block 3a and the third temporary placement portion 38a and the fourth temporary placement portion 38b. Further, the third temporary placement portion 38a and the fourth temporary placement portion 38b are laminated in the order of the fourth temporary placement portion 38b and the third temporary placement portion 38a in order from the bottom.
- the fourth transport device 37 can move along a transport path (not shown) extending in the X-axis direction.
- the fourth transport device 37 has, for example, a transport arm that is movable in the vertical direction, the horizontal direction, and around the vertical axis.
- the fourth transfer device 37 uses a transfer arm, and uses a second laminated portion 33, a third temporary placement portion 38a, a fourth temporary placement portion 38b, a first temperature control plate 39a, a second temperature control plate 39b, and a joining device, which will be described later.
- the first substrate W1, the second substrate W2, and the polymerization substrate T are transported between the 40s.
- the third temporary mounting portion 38a is a place where the first substrate W1 is temporarily placed in order to correct the position of the first substrate W1.
- the fourth temporary placement portion 38b is a place where the second substrate W2 is temporarily placed in order to correct the position of the second substrate W2.
- the third temporary placement portion 38a may be described as "UTHS” and the fourth temporary placement portion 38b may be described as "LTHS”.
- the first temperature control plate 39a, the second temperature control plate 39b, and the joining device 40 are arranged in the treatment areas 3d and 3e of the second treatment block 3b, respectively.
- the first temperature control plate 39a and the second temperature control plate 39b are laminated in the order of the second temperature control plate 39b and the first temperature control plate 39a from the bottom.
- the first temperature control plate 39a adjusts the temperature of the first substrate W1 to a predetermined temperature. Further, the second temperature control plate 39b adjusts the temperature of the second substrate W2 to a predetermined temperature.
- first temperature control plate 39a may be described as “UCPL” and the second temperature control plate 39b may be described as “ICPL”.
- the joining device 40 manufactures the polymerized substrate T by joining the hydrophilic first substrate W1 and the second substrate W2 by an intermolecular force.
- FIG. 5 is a diagram showing the configuration of the joining device 40 according to the embodiment.
- the joining device 40 includes a first holding portion 140, a second holding portion 141, and a striker 190.
- the first holding portion 140 has a main body portion 170.
- the main body 170 is supported by the support member 180.
- the support member 180 and the main body 170 are formed with through holes 176 that vertically penetrate the support member 180 and the main body 170.
- the position of the through hole 176 corresponds to the central portion of the first substrate W1 which is attracted and held by the first holding portion 140.
- the pressing pin 191 of the striker 190 is inserted into the through hole 176.
- the striker 190 is arranged on the upper surface of the support member 180, and includes a pressing pin 191, an actuator portion 192, and a linear motion mechanism 193.
- the pressing pin 191 is a columnar member extending along the vertical direction, and is supported by the actuator portion 192.
- the actuator unit 192 generates a constant pressure in a certain direction (here, vertically downward) by air supplied from, for example, an electropneumatic regulator (not shown).
- the actuator unit 192 can control the pressing load applied to the central portion of the first substrate W1 in contact with the central portion of the first substrate W1 by the air supplied from the electropneumatic regulator. Further, the tip portion of the actuator portion 192 is vertically movable up and down through the through hole 176 by the air from the electropneumatic regulator.
- the actuator unit 192 is supported by the linear motion mechanism 193.
- the linear motion mechanism 193 moves the actuator unit 192 along the vertical direction by, for example, a drive unit having a built-in motor.
- the striker 190 controls the movement of the actuator unit 192 by the linear motion mechanism 193, and controls the pressing load of the first substrate W1 by the pressing pin 191 by the actuator unit 192. As a result, the striker 190 presses the central portion of the first substrate W1 that is attracted and held by the first holding portion 140 to bring it into contact with the second substrate W2.
- a plurality of pins 171 that come into contact with the upper surface (non-joining surface) of the first substrate W1 are provided on the lower surface of the main body 170.
- the plurality of pins 171 have, for example, a diameter dimension of 0.1 mm to 1 mm and a height of several tens of ⁇ m to several hundreds of ⁇ m.
- the plurality of pins 171 are evenly arranged at intervals of, for example, 2 mm.
- the first holding portion 140 includes a plurality of suction portions for sucking the first substrate W1 in a part of the regions where the plurality of pins 171 are provided. Specifically, on the lower surface of the main body 170 of the first holding portion 140, a plurality of outer suction portions 301 and a plurality of inner suction portions 302 for evacuating and sucking the first substrate W1 are provided. The plurality of outer suction portions 301 and the plurality of inner suction portions 302 have arc-shaped suction regions in a plan view. The plurality of outer suction portions 301 and the plurality of inner suction portions 302 have the same height as the pin 171.
- the plurality of outer suction portions 301 are arranged on the outer peripheral portion of the main body portion 170.
- the plurality of outer suction portions 301 are connected to a suction device (not shown) such as a vacuum pump, and suck the outer peripheral portion of the first substrate W1 by vacuuming.
- the plurality of inner suction portions 302 are arranged side by side along the circumferential direction in the radial direction of the main body portion 170 with respect to the plurality of outer suction portions 301.
- the plurality of inner suction portions 302 are connected to a suction device (not shown) such as a vacuum pump, and suck the region between the outer peripheral portion and the central portion of the first substrate W1 by vacuuming.
- the second holding unit 141 will be described.
- the second holding portion 141 has a main body portion 200 having the same diameter as the second substrate W2 or a diameter larger than that of the second substrate W2.
- the second holding portion 141 having a diameter larger than that of the second substrate W2 is shown.
- the upper surface of the main body 200 is a facing surface facing the lower surface (non-joining surface) of the second substrate W2.
- a plurality of pins 201 that come into contact with the lower surface (non-joining surface) of the second substrate W2 are provided on the upper surface of the main body 200.
- the plurality of pins 201 have, for example, a diameter dimension of 0.1 mm to 1 mm and a height of several tens of ⁇ m to several hundreds of ⁇ m.
- the plurality of pins 201 are evenly arranged at intervals of, for example, 2 mm. Twice
- a lower rib 202 is provided in an annular shape on the outside of the plurality of pins 201.
- the lower rib 202 is formed in an annular shape and supports the outer peripheral portion of the second substrate W2 over the entire circumference. Twice
- the main body 200 has a plurality of lower suction ports 203.
- a plurality of lower suction ports 203 are provided in a suction region surrounded by the lower ribs 202.
- the plurality of lower suction ports 203 are connected to a suction device (not shown) such as a vacuum pump via a suction pipe (not shown). Twice
- the second holding portion 141 decompresses the suction region by vacuuming the suction region surrounded by the lower rib 202 from the plurality of lower suction ports 203. As a result, the second substrate W2 placed on the suction region is sucked and held by the second holding portion 141.
- the second substrate W2 Since the lower rib 202 supports the outer peripheral portion of the lower surface of the second substrate W2 over the entire circumference, the second substrate W2 is appropriately evacuated to the outer peripheral portion. As a result, the entire surface of the second substrate W2 can be adsorbed and held. Further, since the lower surface of the second substrate W2 is supported by the plurality of pins 201, the second substrate W2 is likely to be peeled off from the second holding portion 141 when the evacuation of the second substrate W2 is released.
- the joining device 40 sucks and holds the first substrate W1 on the first holding portion 140, and sucks and holds the second substrate W2 on the second holding portion 141. After that, the joining device 40 releases the suction holding of the first substrate W1 by the plurality of inner suction portions 302, and then lowers the pressing pin 191 of the striker 190 to push the central portion of the first substrate W1. As a result, a polymerized substrate T in which the first substrate W1 and the second substrate W2 are bonded is obtained.
- the polymerization substrate T is carried out from the joining device 40 by the fourth transfer device 37. Details of the processing by the joining device 40 will be described later.
- the joining system 1 includes a control device 70.
- the control device 70 controls the operation of the joining system 1.
- a control device 70 is, for example, a computer, and includes a control unit and a storage unit (not shown).
- the control unit includes a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output port, and various circuits.
- the CPU of such a microcomputer realizes the control described later by reading and executing the program stored in the ROM.
- the storage unit is realized by, for example, a semiconductor memory element such as a RAM or a flash memory, or a storage device such as a hard disk or an optical disk.
- Such a program may be recorded on a recording medium readable by a computer, and may be installed from the recording medium in the storage unit of the control device 70.
- Examples of recording media that can be read by a computer include a hard disk (HD), a flexible disk (FD), a compact disk (CD), a magnet optical disk (MO), and a memory card.
- FIG. 6 is a plan view of the load lock chamber 31d according to the embodiment.
- FIG. 7 is a side view of the load lock chamber 31d according to the embodiment as viewed from the access direction of the first transfer device 22.
- FIG. 8 is a side view of the load lock chamber 31d according to the embodiment as viewed from the access direction of the second transfer device 32.
- FIG. 9 is a side view of the load lock chamber 31d according to the embodiment as viewed from the access direction of the third transfer device 34.
- the load lock chamber 31d is accessed by the first transfer device 22, the second transfer device 32, and the third transfer device 34.
- a plurality of (here, four) gate valves 101 to 104 are provided on three different side surfaces of the load lock chamber 31d.
- Each of the gate valves 101 to 104 can open and close the accommodating portions of the first substrate W1 and the second substrate W2 provided inside the load lock chamber 31d.
- the accommodating portions provided in the load lock chamber 31d are divided into a first accommodating portion 311 and a second accommodating portion 312 stacked in the height direction.
- the first accommodating portion 311 and the second accommodating portion 312 can accommodate, for example, one first substrate W1 or a second substrate W2.
- the first accommodating portion 311 has an opening 311a on the side surface facing the first transport device 22, and has an opening 311b on the side surface facing the third transport device 34.
- a first gate valve 101 is provided on the side surface of the load lock chamber 31d facing the first transport device 22, and the opening 311a of the first accommodating portion 311 is opened and closed by the first gate valve 101.
- a third gate valve 103 is provided on the side surface of the load lock chamber 31d facing the third transport device 34, and the opening 311b of the first accommodating portion 311 is opened and closed by the third gate valve 103. ..
- the first accommodating portion 311 is connected to a suction device such as a vacuum pump via a suction pipe.
- the first accommodating portion 311 is evacuated by the suction device with the openings 311a and 311b closed by the first gate valve 101 and the third gate valve 103, that is, with the first accommodating portion 311 sealed. NS.
- the atmosphere of the first accommodating portion 311 is switched from the normal pressure atmosphere to the decompression atmosphere.
- the first gate valve 101 is opened on condition that the third gate valve 103 is closed. As a result, the reduced pressure atmosphere of the transport chamber 34a in which the third transport device 34 is arranged is maintained.
- the second accommodating portion 312 has an opening 312a on the side surface facing the second transport device 32 and an opening 312b on the side surface facing the third transport device 34.
- a second gate valve 102 is provided on the side surface of the load lock chamber 31d facing the second transport device 32, and the opening 312a of the second accommodating portion 312 is opened and closed by the second gate valve 102.
- a fourth gate valve 104 is provided on the side surface of the load lock chamber 31d facing the third transport device 34, and the opening 312b of the second accommodating portion 312 is opened and closed by the fourth gate valve 104. ..
- the second accommodating portion 312 is connected to a suction device different from the first accommodating portion 311 via a suction pipe.
- the second accommodating portion 312 is evacuated by the suction device with the openings 312a and 312b closed by the second gate valve 102 and the fourth gate valve 104, that is, with the second accommodating portion 312 sealed. NS.
- the atmosphere of the second accommodating portion 312 is switched from the normal pressure atmosphere to the decompression atmosphere.
- the second gate valve 102 is opened on condition that the third gate valve 103 is closed. As a result, the reduced pressure atmosphere of the transport chamber 34a in which the third transport device 34 is arranged is maintained.
- the second accommodating portion 312 is arranged above the first accommodating portion 311.
- the second accommodating portion 312 may be arranged below the first accommodating portion 311.
- the load lock chamber 31d is configured as described above, the first transfer device 22 can access the first accommodating portion 311 via the first gate valve 101, and the second transfer device 32 , The second accommodating portion 312 can be accessed via the second gate valve 102. Further, the third transfer device 34 can access the first accommodating portion 311 via the third gate valve 103, and can access the second accommodating portion 312 via the fourth gate valve 104.
- the first transfer device 22, the second transfer device 32, and the third transfer device 34 access the load lock chamber 31d via different gate valves 101 to 104, respectively. conduct.
- FIG. 10 is a flowchart showing a transfer procedure of the first substrate W1, the second substrate W2, and the polymerization substrate T in the bonding system 1 according to the embodiment.
- the transfer process shown in FIG. 10 and various processes performed at the transfer destination are executed based on the control by the control device 70.
- a cassette C1 containing a plurality of first substrates W1, a cassette C2 accommodating a plurality of second substrates W2, and an empty cassette C3 are placed on the mounting plates 11a to 11c of the loading / unloading block 2, respectively. Will be done.
- the first substrate W1 is taken out from the cassette C1 mounted on the mounting plate 11a by the first transfer device 22 (step S101), and is conveyed to the reading unit 31a (step S102).
- the reading unit 31a performs a reading process for reading the identification number of the first substrate W1.
- the first substrate W1 is conveyed from the reading unit 31a to the load lock chamber 31d by the first conveying device 22 (step S103). Specifically, when the first substrate W1 is conveyed to the front of the load lock chamber 31d, the gate valve 101 is opened and placed in the first accommodating portion 311 of the load lock chamber 31d. After that, the gate valve 101 is closed. Then, when the suction device is operated, the first accommodating portion 311 is decompressed to create a decompressed atmosphere.
- the gate valve 103 is opened, and the third transfer device 34 takes out the first substrate W1 from the first accommodating portion 311. Further, the gate valve 105 is opened, and the third transfer device 34 transfers the first substrate W1 to the surface modification device 35 (step S104). After that, the gate valve 105 is closed, and the surface modification device 35 performs the surface modification treatment of the first substrate W1.
- the gate valve 105 is opened, and the third transfer device 34 takes out the first substrate W1 from the surface modification device 35. Further, the gate valve 104 is opened, and the third transfer device 34 places the first substrate W1 on the second accommodating portion 312 of the load lock chamber 31d (step S105). After that, the gate valve 104 is closed, and the second accommodating portion 312 is switched from the reduced pressure atmosphere to the atmospheric atmosphere.
- the second transport device 32 takes out the first substrate W1 from the second accommodating portion 312 and transports it to the surface hydrophilization device 36 (step S106).
- the surface hydrophilization device 36 a treatment for hydrophilizing the joint surface of the first substrate W1 and a treatment for cleaning the joint surface are performed.
- the first substrate W1 is conveyed to the first alignment unit 33e by the second transfer device 32 (step S107).
- the first alignment unit 33e a process of adjusting the horizontal orientation of the first substrate W1 and a process of inverting the front and back of the first substrate W1 are performed. As a result, the joint surface of the first substrate W1 faces downward.
- the first substrate W1 is taken out from the first alignment unit 33e by the fourth transport device 37 and transported to the first temperature control plate 39a (step S108).
- the first temperature control plate 39a a process of adjusting the temperature of the first substrate W1 to a predetermined temperature is performed.
- the first substrate W1 is taken out from the first temperature control plate 39a by the fourth transfer device 37 and transferred to the joining device 40 (step S109).
- the joining device 40 sucks and holds the first substrate W1 from above by using the first holding portion 140 with the joining surface of the first substrate W1 facing downward.
- the first substrate W1 is held by the first holding portion 140 with the notch portion oriented in a predetermined direction.
- the processing of the second substrate W2 is also performed in the same manner as the processing of steps S101 to S109 for the first substrate W1. Since the processing in the reading unit 31a, the surface modifying device 35, and the surface hydrophilizing device 36 is the same as the processing for the first substrate W1, the description here will be omitted.
- the second substrate W2 is taken out from the cassette C2 mounted on the mounting plate 11b by the first transport device 22 (step S110), and is transported to the reading unit 31a (step S111). Subsequently, the second substrate W2 is conveyed to the first accommodating portion 311 of the load lock chamber 31d by the first conveying device 22 (step S112), and then is taken out from the first accommodating portion 311 by the third conveying device 34. , Transported to the surface modifier 35 (step S113).
- the second substrate W2 is taken out from the surface reforming device 35 by the third transfer device 34 and placed in the second accommodating portion 312 of the load lock chamber 31d (step S114). After that, the second substrate W2 is taken out from the second accommodating portion 312 by the second transport device 32 and transported to the surface hydrophilization device 36 (step S115).
- the second substrate W2 is taken out from the surface hydrophilization device 36 by the second transport device 32 and transported to the second alignment unit 33d.
- the second alignment unit 33d performs a process of adjusting the horizontal orientation of the second substrate W2.
- the second substrate W2 is taken out from the second alignment unit 33d by the fourth transport device 37 and transported to the second temperature control plate 39b (step S117).
- the second temperature control plate 39b a process of adjusting the temperature of the second substrate W2 to a predetermined temperature is performed.
- the second substrate W2 is taken out from the second temperature control plate 39b by the fourth transfer device 37 and transferred to the joining device 40 (step S118).
- the joining device 40 sucks and holds the second substrate W2 from below by using the second holding portion 141 with the joining surface of the second substrate W2 facing upward.
- the second substrate W2 is held by the second holding portion 141 with the notch portion oriented in a predetermined direction.
- the joining device 40 performs a process of joining the first substrate W1 and the second substrate W2. First, the joining device 40 brings the second substrate W2 closer to the first substrate W1 by moving the second holding portion 141 vertically upward using an elevating mechanism (not shown).
- the central portion of the first substrate W1 is pressed by lowering the pressing pin 191 of the striker 190.
- the bonding surfaces of the first substrate W1 and the second substrate W2 are hydrophilized by the surface hydrophilic device 36, the hydrophilic groups between the bonding surfaces are hydrogen-bonded, and the bonding surfaces are firmly bonded to each other. In this way, the junction region is formed.
- a bonding wave is generated in which the bonding region expands from the central portion of the first substrate W1 and the second substrate W2 toward the outer peripheral portion.
- the suction holding of the first substrate W1 by the plurality of outer suction portions 301 is released.
- the outer peripheral portion of the first substrate W1 that has been sucked and held by the outer suction portion 301 falls.
- the bonding surface of the first substrate W1 and the bonding surface of the second substrate W2 are in contact with each other on the entire surface, and the polymerization substrate T is formed.
- the pressing pin 191 is raised to the first holding portion 140 to release the suction holding of the second substrate W2 by the second holding portion 141.
- the polymerization substrate T is taken out from the joining device 40 by the fourth transfer device 37 (step S119) and transferred to the second delivery section 33b (step S120). Subsequently, the polymerization substrate T is taken out from the second delivery section 33b by the second transfer device 32 and transported to the first delivery section 31c (step S121). Then, the polymerization substrate T is taken out from the first delivery section 31c by the first transfer device 22, and is housed in the cassette C3 mounted on the mounting plate 11c (step S122). As a result, a series of substrate processing by the joining system 1 is accommodated.
- the mounting bases of the first substrate and the second substrate are arranged between the first transfer device and the second transfer device, and the load lock chamber is arranged at a place away from the first transfer device. It had been.
- the first substrate or the second substrate conveyed by the first transfer device is transferred to the second transfer device via the mounting table, and then transferred to the load lock chamber by the second transfer device. It had been.
- the load lock chamber 31d is arranged at a position accessible to the first transfer device 22. Specifically, in the joining system 1 according to the embodiment, the load lock chamber 31d is arranged between the first transfer device 22 and the second transfer device 32. As described above, according to the joining system 1 according to the embodiment, the load lock chamber 31d can be accessed from the first transport device 22, for example, by the total length (for example, the space of the mounting table in the conventional joining system). The length in the X-axis direction) can be kept short. Therefore, according to the joining system 1 according to the embodiment, the footprint, which is the ratio of the joining system 1 to the floor area of the clean room or the like, can be reduced.
- the joining system 1 when the first substrate W1 or the second substrate W2 is conveyed to the load lock chamber 31d, the first substrate W1 or the first substrate W1 or the second substrate W1 is transferred from the first transfer device 22 to the second transfer device 32.
- the step of delivering the second substrate W2 becomes unnecessary. Therefore, according to the joining system 1 according to the embodiment, it is possible to improve the throughput of a series of substrate processing executed in the joining system 1.
- the accommodating portion of the load lock chamber 31d is divided into a first accommodating portion 311 accessed by the first transport device 22 and a second accommodating portion 312 accessed by the second transport device 32.
- the first accommodating portion 311 and the second accommodating portion 312 can be switched between a normal pressure atmosphere and a depressurized atmosphere independently of each other.
- one of the first accommodating portion 311 and the second accommodating portion 312 can have a normal pressure atmosphere and the other accommodating portion can have a decompression atmosphere. That is, in the load lock chamber 31d, the loading / unloading operation of the first substrate W1 or the second substrate W2 performed in a normal pressure atmosphere and the loading / unloading operation of the first substrate W1 or the second substrate W2 performed in a reduced pressure atmosphere. Can be done in parallel. Therefore, according to the joining system 1 according to the embodiment, it is possible to improve the throughput of a series of substrate processing executed in the joining system 1.
- the two third transport devices 34, the two surface modification devices 35, and the two load lock chambers 31d are along the alignment direction (X-axis direction) of the carry-in / out block 2 and the processing block 3. It is a straight line and is arranged symmetrically with respect to the straight line passing through the second transport device 32.
- the two load lock chambers 31d are arranged in an area surrounded by the carry-in / out block 2, the two third transport devices 34, and the second transport device 32.
- the footprint can be reduced.
- the load lock chamber 31d has a trapezoidal shape having four side surfaces in a plan view. By forming the load lock chamber 31d into such a shape, the footprint can be further reduced.
- the joining system 1 may further include an inspection device that inspects the first substrate W1 and the second substrate W2.
- the inspection device inspects, for example, the presence or absence of particles on the joint surfaces of the first substrate W1 and the second substrate W2.
- 11 to 13 are diagrams showing an arrangement example of the inspection device.
- the inspection device 80 may be arranged above the surface hydrophilization device 36 in the first processing block 3a. That is, the inspection device 80 may be laminated together with the surface modification device 35 and the surface hydrophilization device 36.
- the inspection device 80 may be arranged below the surface hydrophilization device 36, or may be arranged below the surface modification device 35. With such an arrangement, an increase in footprint can be suppressed.
- the inspection device 80 may be arranged on the side of the surface hydrophilization device 36 and the surface modification device 35 in the first processing block 3a, for example.
- the second transfer device 32 may be configured to be movable along the X-axis direction so that both the surface modification device 35 and the inspection device 80 can be accessed.
- the surface hydrophilic device 36 does not necessarily have to be laminated on the surface hydrophilic device 36, and may be arranged on the side of the surface hydrophilic device 36.
- the inspection device 80 may be arranged on the upper side or the lower part of the surface hydrophilization device 36 on the side of the surface modification device 35.
- the inspection device 80 may be arranged above the joining device 40 in the second processing block 3b. Further, the inspection device 80 may be arranged below the joining device 40. By arranging the inspection device 80 at the upper or lower part of the joining device 40 in this way, it is possible to suppress an increase in the footprint.
- the inspection device 80 arranged in the second processing block 3b is not limited to the inspection of the first substrate W1 and the second substrate W2, but may inspect the polymerized substrate T.
- FIG. 14 is a schematic plan view showing the configuration of the joining system according to the second modification.
- the joining system 1A according to the second modification includes a processing block 3A.
- the processing block 3A includes a transport region 90 in the center, and the transport region 90 includes a transport path 91 extending in the X-axis direction and a second transport device 32 movable along the transport path 91. Is placed.
- a third transport device 34, a surface modification device 35, and a joining device 40 are arranged in the processing block 3A on the Y-axis positive direction side and the Y-axis negative direction side of the transport region 90, respectively.
- the third transfer device 34, the surface modification device 35, and the joining device 40 are arranged in the order of the third transfer device 34, the surface modification device 35, and the joining device 40 along the positive direction of the X axis.
- a first laminated portion 31 including a load lock chamber 31d is arranged between the transport area 90 and the carry-in / out block 2. Further, in the processing block 3A, the third temporary placement portion 38a and the fourth temporary placement portion 38b are arranged on the opposite side of the transport region 90 from the first laminated portion 31.
- the joining system 1A does not necessarily have to be divided into the first processing block 3a and the second processing block 3b.
- the first substrate (as an example, the first substrate W1) and the second substrate (as an example, the second substrate W2) are intermolecular.
- the first transfer device and the second transfer device convey the first substrate and the second substrate in a normal pressure atmosphere.
- the third transfer device conveys the first substrate and the second substrate in a reduced pressure atmosphere.
- the load lock chamber has accommodating portions (for example, the first accommodating portion 311 and the second accommodating portion 312) capable of accommodating the first substrate and the second substrate, and the accommodating portion is placed between the normal pressure atmosphere and the depressurized atmosphere. It can be switched with.
- a plurality of gates are provided on three different sides of the load lock chamber, and the load lock chamber can be opened and closed. Further, the first transfer device, the second transfer device, and the third transfer device carry in and out the first substrate and the second substrate to and from the load lock chamber via different gates among the plurality of gates.
- the footprint can be reduced.
- the joining system includes an carry-in / out block (as an example, a carry-in / out block 2) and a processing block (as an example, a processing block 3).
- the carry-in / out block may have a mounting table (as an example, mounting plates 11a to 11d) on which a cassette (as an example, cassettes C1 to C4) is mounted.
- the processing block is modified with a surface modification device (for example, a surface modification device 35) that modifies the bonded surfaces (for example, the bonded surface) of the first substrate and the second substrate in a reduced pressure atmosphere.
- a surface hydrophilizing device for example, a surface hydrophilizing device 36 for hydrophilizing the surfaces of the first substrate and the second substrate is arranged.
- the first transfer device may be arranged in the carry-in / out block to transfer the first substrate and the second substrate from the cassette to the load lock chamber.
- the third transfer device may be arranged in the processing block to transfer the first substrate and the second substrate from the load lock chamber to the surface modification device.
- the second transfer device may be arranged in the processing block to transfer the first substrate and the second substrate from the load lock chamber to the surface hydrophilization device.
- the load lock chamber may be arranged between the first transfer device and the second transfer device. As a result, the footprint can be reduced.
- the accommodating unit may include a first accommodating unit (for example, a first accommodating unit 311) and a second accommodating unit (for example, a second accommodating unit 312).
- the first accommodating unit is accessed by the first transport device.
- the second accommodating portion is arranged above or below the first accommodating portion, can be switched between the normal pressure atmosphere and the depressurized atmosphere independently of the first accommodating portion, and is accessed by the second conveying device. As a result, the throughput can be improved.
- the two third transport devices, the two surface modifiers, and the two load lock chambers are straight lines along the alignment direction of the carry-in / out block and the processing block, and are straight lines passing through the second transport device.
- they may be arranged symmetrically.
- the two load lock chambers may be arranged in an area surrounded by the carry-in / out block, the two third transport devices, and the second transport device. As a result, the footprint can be reduced.
- the load lock chamber may have a trapezoidal shape composed of four side surfaces including three different side surfaces in a plan view. This allows the footprint to be even smaller.
- the processing block may include a laminated portion (for example, a first laminated portion 31) in which a plurality of modules are laminated between the loading / unloading block and the second transport device.
- the load lock chamber may be arranged in the laminated portion.
- the plurality of modules are temporarily placed in the first delivery section (for example, the first delivery section 31c), the first substrate and the second substrate in which the polymerization substrate is delivered from the second transfer device to the first transfer device.
- a unit for example, a first temporary placement unit 31b
- a reading unit for reading identification information attached to the first substrate and the second substrate for example, a reading unit 31a
- the surface hydrophilization device may be arranged above or below the surface modification device. This allows the footprint to be even smaller.
- the joining system according to the embodiment may include an inspection device (for example, an inspection device 80) that inspects the first substrate and the second substrate.
- the inspection device may be laminated together with the surface modification device and the surface hydrophilization device in the treatment block (for example, the first treatment block 3a). As a result, an increase in footprint can be suppressed.
- the joining system may include a joining device (for example, a joining device 40) that joins the hydrophilized first substrate and the second substrate by an intermolecular force.
- the joining device may be arranged in the processing block (for example, the second processing block 3b).
- the processing block may include a first processing block (as an example, a first processing block 3a) and a second processing block (as an example, a second processing block 3b).
- the first processing block is adjacent to the carry-in / out block, and a second transport device, a third transport device, a surface modification device, and a surface hydrophilization device are arranged.
- the second processing block is adjacent to the first processing block. In this case, the joining device may be arranged in the second processing block.
- the first processing block may include a second delivery unit (for example, a second delivery unit 33b) between the second transfer device and the second processing block.
- the second processing block is a fourth transport device (for example, a fourth transport device 37) that transports the first substrate and the second substrate mounted on the second delivery portion by the second transport device to the joining device. May be provided.
- the joining system according to the embodiment may include an inspection device (for example, an inspection device 80) that inspects at least one of the first substrate, the second substrate, and the polymerization substrate.
- the inspection device may be arranged above or below the joining device in the second processing block. As a result, an increase in footprint can be suppressed.
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Abstract
Description
まず、実施形態に係る接合システムの構成について図1~図3を参照して説明する。図1および図2は、実施形態に係る接合システムの構成を示す模式平面図である。
搬入出ブロック2は、載置台10と、搬送エリア20とを備える。載置台10は、複数の載置板11a~11dを備える。載置板11a~11dには、複数枚(たとえば、25枚)の基板を水平状態で収容可能なカセットC1~C4がそれぞれ載置される。カセットC1は第1基板W1を収容するカセットであり、カセットC2は第2基板W2を収容するカセットであり、カセットC3は重合基板Tを収容するカセットである。また、カセットC4は、たとえば、不具合が生じた基板を回収するためのカセットである。
処理ブロック3(第1処理ブロック3aおよび第2処理ブロック3b)は、X軸方向に沿って延在する搬送エリア3cと、搬送エリア3cを挟んで配置される2つの処理エリア3d,3eを備える。処理エリア3dは、搬送エリア3cのY軸正方向側に配置され、処理エリア3eは、搬送エリア3cのY軸負方向側に配置される。処理ブロック3は、下層および上層の2層構造を有するが、この点については後述する。
第1処理ブロック3aは、搬入出ブロック2の搬送エリア20に隣接する。第1処理ブロック3aの搬送エリア3cには、第1積層部31と、第2搬送装置32と、第2積層部33とが配置される。第1積層部31、第2搬送装置32および第2積層部33は、X軸正方向に沿って、第1積層部31、第2搬送装置32および第2積層部33の順番に並べられる。
第2処理ブロック3bは、第1処理ブロック3aの第2積層部33に隣接する。第2処理ブロック3bの搬送エリア3cには、第4搬送装置37と、第3仮置部38aと、第4仮置部38bとが配置される。
また、接合システム1は、制御装置70を備える。制御装置70は、接合システム1の動作を制御する。かかる制御装置70は、たとえばコンピュータであり、図示しない制御部および記憶部を備える。制御部は、CPU(Central Processing Unit)、ROM(Read Only Memory)、RAM(Random Access Memory)、入出力ポートなどを有するマイクロコンピュータや各種の回路を含む。かかるマイクロコンピュータのCPUは、ROMに記憶されているプログラムを読み出して実行することにより、後述する制御を実現する。また、記憶部は、たとえば、RAM、フラッシュメモリ(Flash Memory)等の半導体メモリ素子、または、ハードディスク、光ディスク等の記憶装置によって実現される。
次に、実施形態に係るロードロック室31dの具体的な構成例について図6~図9を参照して説明する。図6は、実施形態に係るロードロック室31dの平面図である。図7は、実施形態に係るロードロック室31dを第1搬送装置22のアクセス方向から見た側面図である。図8は、実施形態に係るロードロック室31dを第2搬送装置32のアクセス方向から見た側面図である。図9は、実施形態に係るロードロック室31dを第3搬送装置34のアクセス方向から見た側面図である。
次に、実施形態に係る接合システム1の具体的な動作について図10を参照して説明する。図10は、実施形態に係る接合システム1における第1基板W1、第2基板W2および重合基板Tの搬送手順を示すフローチャートである。図10に示す搬送処理および搬送先にて行われる各種の処理は、制御装置70による制御に基づいて実行される。
接合システム1は、第1基板W1および第2基板W2の検査を行う検査装置をさらに備えていてもよい。検査装置は、たとえば第1基板W1および第2基板W2の接合面におけるパーティクルの有無等を検査する。
上述した実施形態では、処理ブロック3が第1処理ブロック3aと第2処理ブロック3bとに分割される場合の例について説明したが、処理ブロック3は、必ずしも分割されることを要しない。処理ブロック3が分割されない場合の例について図14を参照して説明する。図14は、第2変形例に係る接合システムの構成を示す模式平面図である。
2 :搬入出ブロック
3 :処理ブロック
3a :第1処理ブロック
3b :第2処理ブロック
10 :載置台
11a :載置板
11b :載置板
11c :載置板
11d :載置板
22 :第1搬送装置
31 :第1積層部
31a :読取部
31b :第1仮置部
31c :第1受渡部
31d :ロードロック室
32 :第2搬送装置
33 :第2積層部
33a :第2仮置部
33b :第2受渡部
33c :第3受渡部
33d :第2アライメント部
33e :第1アライメント部
34 :第3搬送装置
35 :表面改質装置
36 :表面改質装置
37 :第4搬送装置
38a :第3仮置部
38b :第4仮置部
39 :接合装置
39a :第1温調板
39b :第2温調板
40 :接合装置
101~105:ゲートバルブ
311 :第1収容部
312 :第2収容部
Claims (15)
- 第1基板および第2基板を分子間力により接合することによって重合基板を形成する接合システムであって、
常圧雰囲気において前記第1基板および前記第2基板を搬送する第1搬送装置および第2搬送装置と、
減圧雰囲気において前記第1基板および前記第2基板を搬送する第3搬送装置と、
前記第1基板および前記第2基板を収容可能な収容部を有し、前記収容部を前記常圧雰囲気と前記減圧雰囲気との間で切り替え可能なロードロック室と
前記ロードロック室の異なる3つの側面にそれぞれ設けられ、前記ロードロック室を開閉可能な複数のゲートと
を備え、
前記第1搬送装置、前記第2搬送装置および前記第3搬送装置は、前記複数のゲートのうちそれぞれ異なるゲートを介して前記ロードロック室に対する前記第1基板および前記第2基板の搬入出を行う、接合システム。 - カセットが載置される載置台を有する搬入出ブロックと、
前記第1基板および前記第2基板の接合される表面を前記減圧雰囲気にて改質する表面改質装置と、改質された前記第1基板および前記第2基板の表面を親水化する表面親水化装置とが配置される処理ブロックと
を備え、
前記第1搬送装置は、前記搬入出ブロックに配置され、前記カセットから前記ロードロック室への前記第1基板および前記第2基板の搬送を行い、
前記第3搬送装置は、前記処理ブロックに配置され、前記ロードロック室から前記表面改質装置への前記第1基板および前記第2基板の搬送を行い、
前記第2搬送装置は、前記処理ブロックに配置され、前記ロードロック室から前記表面親水化装置への前記第1基板および前記第2基板の搬送を行う、請求項1に記載の接合システム。 - 前記ロードロック室は、前記第1搬送装置と前記第2搬送装置との間に配置される、請求項1または2に記載の接合システム。
- 前記収容部は、
前記第1搬送装置によってアクセスされる第1収容部と、
前記第1収容部の上部または下部に配置され、前記第1収容部と独立して前記常圧雰囲気と前記減圧雰囲気との間で切り替え可能であり、前記第2搬送装置によってアクセスされる第2収容部と
を備える、請求項1~3のいずれか一つに記載の接合システム。 - 平面視において、2つの前記第3搬送装置、2つの前記表面改質装置、2つの前記ロードロック室が、前記搬入出ブロックおよび前記処理ブロックの並び方向に沿った直線であって、前記第2搬送装置を通る前記直線に対して対称に配置される、請求項2に記載の接合システム。
- 2つの前記ロードロック室は、前記搬入出ブロック、2つの前記第3搬送装置および前記第2搬送装置によって囲まれる領域に配置される、請求項5に記載の接合システム。
- 前記ロードロック室は、平面視において、前記異なる3つの側面を含む4つの側面からなる形状が台形状である、請求項6に記載の接合システム。
- 前記処理ブロックは、前記搬入出ブロックと前記第2搬送装置との間に、複数のモジュールが積層された積層部
を備え、
前記ロードロック室は、前記積層部に配置される、請求項2に記載の接合システム。 - 前記複数のモジュールは、前記重合基板の前記第2搬送装置から前記第1搬送装置への受け渡しが行われる第1受渡部、前記第1基板および前記第2基板の仮置部、前記第1基板および前記第2基板に付された識別情報を読み取る読取部の少なくとも1つを含む、請求項8に記載の接合システム。
- 前記表面親水化装置は、前記表面改質装置の上部または下部に配置される、請求項2に記載の接合システム。
- 前記第1基板および前記第2基板の検査を行う検査装置
を備え、
前記検査装置は、前記処理ブロックにおいて、前記表面改質装置および前記表面親水化装置とともに積層される、請求項10に記載の接合システム。 - 親水化された前記第1基板と前記第2基板とを分子間力により接合する接合装置
を備え、
前記接合装置は、前記処理ブロックに配置される、請求項2に記載の接合システム。 - 前記処理ブロックは、
前記搬入出ブロックに隣接し、前記第2搬送装置、前記第3搬送装置、前記表面改質装置および前記表面親水化装置が配置される第1処理ブロックと、
前記第1処理ブロックに隣接する第2処理ブロックと
を備え、
前記接合装置は、前記第2処理ブロックに配置される、請求項12に記載の接合システム。 - 前記第1処理ブロックは、
前記第2搬送装置と前記第2処理ブロックとの間に第2受渡部
を備え、
前記第2処理ブロックは、
前記第2搬送装置によって前記第2受渡部に載置された前記第1基板および前記第2基板を前記接合装置へ搬送する第4搬送装置
を備える、請求項13に記載の接合システム。 - 前記第1基板、前記第2基板および前記重合基板のうち少なくとも1つの検査を行う検査装置
を備え、
前記検査装置は、前記第2処理ブロックにおいて、前記接合装置の上部または下部に配置される、請求項14に記載の接合システム。
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