WO2004075286A1 - 搬送装置及び半導体処理システム - Google Patents
搬送装置及び半導体処理システム Download PDFInfo
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- WO2004075286A1 WO2004075286A1 PCT/JP2004/002004 JP2004002004W WO2004075286A1 WO 2004075286 A1 WO2004075286 A1 WO 2004075286A1 JP 2004002004 W JP2004002004 W JP 2004002004W WO 2004075286 A1 WO2004075286 A1 WO 2004075286A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/68—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for positioning, orientation or alignment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67763—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67766—Mechanical parts of transfer devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67739—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67745—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations into and out of processing chamber characterized by movements or sequence of movements of transfer devices
Definitions
- the present invention relates to a transfer device for transferring a substrate to be processed in a semiconductor processing system, and a semiconductor processing system incorporating the transfer device.
- semiconductor processing refers to a semiconductor layer, an insulating layer, and a conductive layer on a substrate to be processed such as a wafer, a glass substrate for a liquid crystal display (LCD) or a flat panel display (FPD).
- LCD liquid crystal display
- FPD flat panel display
- a system for performing semiconductor processing on a substrate to be processed such as a semiconductor wafer there is a single-wafer processing apparatus for processing substrates one by one.
- a multi-chamber type semiconductor processing system in which a plurality of such processing apparatuses are connected to each other via a common transfer chamber to enable continuous processing of various processes without exposing the wafer to the atmosphere.
- Examples of such a semiconductor processing system include a normal-pressure processing type as disclosed in Japanese Patent Application Laid-Open No. 7-86375 and Japanese Patent Application Laid-Open No. 2000-19595.
- a vacuum processing type as shown in the gazette.
- a transfer device is provided so as to be able to travel in parallel with the science room.
- the transfer device includes a moving base that runs on rails.
- a pair of pillars are erected on the movable base, and a housing is disposed on the movable base via a vertical arm mechanism so as to be vertically movable.
- a horizontal arm mechanism having a substrate holding portion capable of holding two substrates is provided in the housing.
- a plurality of vacuum processing chambers and load lock chambers are connected around a decompressible transfer chamber.
- the processing room and the load-lock room are arranged at least one place vertically around the transfer room.
- a transfer device is provided in the transfer chamber, and includes a pair of small arm mechanisms that can expand and contract in the horizontal direction.
- the small arm mechanism is arranged to be able to turn horizontally and move up and down.
- An object of the present invention is to provide a transfer device and a semiconductor processing system capable of improving transfer efficiency.
- a first aspect of the present invention is a transport device in a semiconductor processing system
- First and second operating mechanisms having first and second support portions movable respectively on first and second vertical planes parallel to each other in the common space;
- the first and second support portions support the first and second support portions so as to be moved in a horizontal state by the first and second operation mechanisms.
- the first and second carriages held, and the first and second carriages.
- the first and second carriages extend from a center vertical plane between the first and second vertical planes from the first and second support portions. Extending towards the second and first vertical planes, respectively;
- First and second retractable first and second handling mechanisms disposed on the first and second movable tables, respectively, for handling a substrate to be processed;
- a control unit that controls operations of the first and second operating mechanisms in the common space so that the first and second moving tables do not interfere with each other;
- a second aspect of the present invention is a semiconductor processing system, comprising: a transfer chamber having a plurality of ports for loading and unloading a substrate to be processed;
- a processing chamber connected to at least one of the plurality of ports for performing semiconductor processing on the substrate to be processed
- a transfer device disposed in the transfer chamber for loading and unloading the substrate through the plurality of ports;
- the transport device comprises:
- First and second operation mechanisms having first and second support portions movable respectively on first and second vertical planes parallel to each other in the transfer chamber;
- First and second moving tables supported by the first and second support portions so as to be moved in a horizontal state by the first and second operating mechanisms in the transfer chamber;
- the second moving table is provided between the first and second support parts and the first and second vertical planes. Extending beyond the central vertical plane toward the second and first vertical planes, respectively;
- First and second movable mechanisms disposed on the first and second movable bases, the first and second movable mechanisms respectively configured to handle the substrate to be processed, and the first and second movable bases in the common space;
- a control unit that controls the operations of the first and second operating mechanisms so that the first and second operating mechanisms do not interfere with each other;
- FIG. 1 is a perspective view showing a part of a semiconductor processing system incorporating a transfer device according to an embodiment of the present invention.
- Fig. 2 is a longitudinal side view of the system shown in Fig. 1.
- Fig. 3 is a schematic plan view of the whole system shown in Fig. 1.
- FIG. 4 is a perspective view showing an example of a large arm mechanism of the transfer device shown in FIG.
- FIG. 5 is a perspective view showing an example of a small arm mechanism of the transfer device shown in FIG.
- FIG. 6 is a perspective view showing another example of the large arm mechanism of the transfer device shown in FIG.
- FIG. 7 is a cross-sectional view showing a modification of the system shown in FIG.
- FIG. 8 is a perspective view showing a semiconductor processing system incorporating a transport device according to another embodiment of the present invention.
- FIG. 9 is a cross-sectional view showing a driving unit of the transport device shown in FIG.
- FIG. 10 is a perspective view showing a modified example of the system shown in FIG.
- FIG. 11 is a perspective view showing a modified example of the system shown in FIG. 10.
- FIG. 12 is a schematic plan view showing a semiconductor processing system according to still another embodiment of the present invention.
- FIG. 13 is a schematic plan view showing a semiconductor processing system according to still another embodiment of the present invention.
- FIG. 14 is a perspective view showing a transfer device according to still another embodiment of the present invention.
- 15A and 15B are schematic side views showing a transfer device according to still another embodiment of the present invention.
- FIG. 16 is a perspective view showing a transfer device according to still another embodiment of the present invention.
- FIG. 1 is a perspective view showing a part of a semiconductor processing system incorporating a transfer device according to an embodiment of the present invention.
- 2 and 3 are a longitudinal side view and a schematic plan view of the entire system shown in FIG.
- the semiconductor processing system 1 is composed of a casing 2 which is long in the horizontal X direction (the horizontal direction in FIG. 3) and has a common transfer chamber (also called a vacuum transfer chamber) 3 in which the inside can be set to a reduced-pressure atmosphere. .
- a plurality of (including plural types) processing chambers (vacuum processing chambers) 4 and a load lock chamber 5 that can be decompressed are provided on four sides of the vacuum transfer chamber 3.
- Vacuum processing chamber 4 and / or load lock chamber 5 are around vacuum transfer chamber 3. At least one place is arranged in multiple stages up and down.
- Ports 7, 8, 10 and 11 for loading and unloading a semiconductor wafer W as a substrate to be processed are formed on four sides of the transfer chamber 3 corresponding to the chambers 4 and 5, respectively. Therefore, in the portion where the vacuum processing chambers 4 and / or the load-lock chambers 5 are arranged in multiple stages, the ports are arranged side by side in the vertical direction. In each of the ports 7, 8, 10, and 11, a gate pulp G for airtightly separating the transfer chamber 3 from the vacuum processing chamber 4 and the loading port chamber 5 is provided.
- a plurality of, for example, three ports 7 are formed at the first height of one side (first side) 6 a of the vacuum transfer chamber 3.
- a vacuum processing chamber 4 is connected to each port 7 via a gate valve G.
- a plurality of, for example, three ports 8 are formed at the second height of the other side (second side) 6b opposite to the first side 6a.
- the vacuum processing chamber 4 is also connected to each port 8 via a gate valve G.
- FIG. 2 shows a state in which the vacuum processing chamber 4 on the first side 6a of the vacuum transfer chamber 3 and the vacuum processing chamber 4 on the second side 6b are arranged at different heights (accordingly, the corresponding port (Formed at different heights) are indicated by solid lines.
- the height difference between the first height and the second height is a movement supported by the first and second large arm mechanisms 9A and 9B and having the small arm mechanisms 19A and 19B.
- the position exchange with each other in the vertical direction means that the moving table 18A can be positioned above or below the moving table 18B.
- two transfer mechanisms are provided in the housing 2 so as to be movable in the longitudinal direction (X direction) corresponding to the first height and the second height. This improves the transport efficiency and facilitates control.
- the vacuum processing chamber 4 does not necessarily have to be arranged at different heights with respect to the left and right side surfaces of the vacuum transfer chamber 3. For example, as shown by the solid line and the imaginary line in FIG. 2, the vacuum processing chambers 4 may be arranged at the same height on the left and right and vertically in two stages.
- a plurality of, for example, four ports 10 are formed in multiple stages (multiple stages) up and down.
- the load lock chamber 5 is connected to each port 10 via a good valve G.
- One port 11 is formed at the first height of the rear end face 6 d which is the other end of the vacuum transfer chamber 3.
- a vacuum processing chamber 4 is connected to the port 11 via a gate valve G.
- the semiconductor processing system 1 also includes a housing 12 that is long in the horizontal Y direction (vertical direction in FIG. 3) orthogonal to the X direction, and the inside of which is a normal-pressure atmosphere-side transfer chamber (normal-pressure transfer chamber or atmospheric air). (Also referred to as transfer chamber).
- the normal pressure transfer chamber 13 is connected to the vacuum transfer chamber 3 via the load lock chamber 5.
- the normal-pressure transfer chamber 13 is used to carry the semiconductor wafer W in and out of the vacuum transfer chamber 3 from the atmosphere side.
- a plurality of, for example, four, ports for loading and unloading wafers W are formed horizontally on one side (front surface) of the normal-pressure transfer chamber 13, and a plurality of wafers are stored here.
- the load port device 15 on which the loaded cassette 14 is placed is connected.
- Normal pressure ⁇ Four ports are formed vertically on the other side (rear side) of the transfer chamber 13, and the above-mentioned load lock chamber 5 is connected thereto via the gate pulp G.
- an orienter 16 for aligning the wafer is provided at one end of the normal pressure transfer chamber 13.
- transfer devices 17 are provided, respectively. Since the transfer device 17 in the vacuum transfer chamber 3 and the transfer device 17 in the normal-pressure transfer chamber 13 are almost the same, the transfer device 17 in the vacuum transfer chamber 3 will be described below. Description of the transfer device 17 in the normal pressure transfer chamber 13 is omitted.
- the transfer device 17 has left and right one first and second large arm mechanisms (first and second operation mechanisms) 9 ⁇ , 9 ⁇ each of which is composed of a vertically articulated locomotive that can be extended and retracted.
- the first and second large arm mechanisms 9 ⁇ and 9 ⁇ are parallel to the X direction and parallel to each other in a common space formed by the vacuum transfer chamber 3, and have first and second vertical planes VP 1 and VP 2. (Refer to Fig. 2)
- first and second large arm mechanisms 9A and 9B At the tips of the first and second large arm mechanisms 9A and 9B, the first and second carriages (first and second base portions) 18A and 18B are supported, respectively.
- First and second large arm mechanism 9 A First and second large arm mechanism 9 A,
- the first and second carriages 18A, 18B extend from the tips of the first and second large arm mechanisms 9A, 9B toward each other. 1st and 2nd carriage
- VP 2 (1st and 2nd large arm mechanism 9A, 9B Terminate at a position beyond the center vertical plane VP0 (center line of the vacuum transfer chamber 3) between the moving vertical planes and not reaching the second and first vertical planes VP2 and VP1.
- first and second small arm mechanisms (first and second handling mechanisms) 19A and 19B are provided on the first and second carriages 18A and 18B. Each is arranged.
- the first and second small arm mechanisms 19 A and 19 B directly transfer the wafer W as the substrate to be processed into and out of the vacuum processing chamber 4 and the load-lock chamber 5.
- the first and second small arm mechanisms 19A and 19B are rotatable in a horizontal plane, and their rotation centers are perpendicular to the center between the first and second vertical planes VP1 and VP2 described above. It is placed on the plane VP 0 (the center line of the vacuum transfer chamber 3).
- the transport device 17 further has a control unit (controller) 20 for controlling the operation of itself.
- the control unit 20 includes the first and second large arms in the common space formed by the vacuum transfer chamber 3 so that the first and second moving tables 18A and 18B do not interfere with each other. Controls the operation of mechanisms 9A and 9B. That is, the control unit 20 operates the first and second mobile tables 18A and 18B so as to exchange positions in the vertical direction.
- a large arm mechanism is used as a mechanism for moving the moving tables 18A and 18B in the Z direction (vertical direction) and the X direction.
- the large arm mechanisms 9A and 9B are similar to a commercially available transport robot (UTM-350 Robot sold by Assist Japan Co., Ltd.), but have two movable bases 18A and 18B.
- the two large arm mechanisms 9A, 9B In the combination of
- the first and second large arm mechanisms 9A and 9B share a base (base) 21 arranged on the floor of the vacuum transfer chamber 3.
- Each of the first and second large arm mechanisms 9A and 9B is connected to the base 21 so as to be vertically pivotable and to the tip of the base arm 22 so as to be vertically pivotable.
- an intermediate arm 2.3 The tip of each of the intermediate arms 23 functions as a moving table support, and the moving tables 18A and 18B and a hanging part 18d integral with the moving tables 18A and 18B are connected to be vertically pivotable.
- the base 21 can be made movable in the X direction.
- the rail 24 is arranged on the floor of the vacuum transfer chamber 3 and the base 21 is driven on the rail 24 by a rear motor. it can.
- the first and second large arm mechanisms 9A and 9B can be configured to have individual bases instead of the common base 21.
- the base 21 is divided into two parts for each of the large arm mechanisms 9A and 9B at the position of the broken line 25 in the center, and the two parts are separated by separate rails 24. It is possible to move independently above. This further increases the degree of freedom in the transfer of the wafer W.
- FIG. 4 is a perspective view showing an example of the large arm mechanism of the transfer device shown in FIG.
- This large arm mechanism 9 A (9 B) has an independent base 21.
- the base 21 is provided with a first drive unit 26 for vertically rotating the base arm 22.
- Proximal arm 2 2 end At the end, a second drive unit 27 for vertically rotating the intermediate arm 23 is provided. At the end of the intermediate arm 23, a third drive unit 28 for vertically turning the movable table 18A is provided.
- the movable base 18A By moving the large arm mechanism 9A in a vertical plane, the movable base 18A can be moved in the Z direction (vertical direction) and the X direction in a horizontal state.
- FIG. 5 is a perspective view showing an example of a small arm mechanism of the transfer device shown in FIG.
- This small arm mechanism 19A (19B) has a turntable 31 rotatably disposed on a movable table 18A.
- Two articulated arms 19 S and 19 T are arranged on the rotating table 31.
- Each of the articulated arms 19S and 19T is a base arm 19X arranged so as to be able to turn horizontally, and an intermediate part which is connected to the front end of the base arm 19X so as to be able to turn horizontally.
- It has an arm 19 y and a pick 30 (substrate holding unit) that is connected to the end of the intermediate arm 19 y so as to be able to turn horizontally.
- a force par 32 for covering the both articulated arms 19 S and 19 T in the contracted and stored state is disposed on the turntable 31.
- the cover 32 can protect the wafer W from the particles even if the first and second movable bases 18A and 18B vertically exchange positions with each other and fall. it can.
- the cover 32 is provided with an opening 33 so that the articulated arms 19S and 19T can expand and contract in the horizontal direction.
- a shutter may be provided in the opening 33.
- FIG. 6 is a perspective view showing another example of the large arm mechanism of the transfer device shown in FIG.
- the large arm mechanism 9A (9B) has a parallel link structure. That is, the large arm mechanism 9 A (9 B) is composed of a pair of base arms 22, 34 connected to the base 21 vertically rotatably, and a pair of base arms 22, 3 4. And a pair of intermediate arms 23, 35, which are respectively connected to the tips of the robots so as to be vertically pivotable. The ends of a pair of proximal arms 22, 34 are connected by a link 36. The tips of a pair of intermediate arms 2 3 and 3 5 function as a carriage support, where the hanging part 18 d integral with the carriage 18 A (18 B) can rotate vertically. Be linked. In this structure, since the carriage 18 A (18 B) is translated while maintaining a horizontal state, the third drive unit 28 (8 B) for controlling the carriage 18 A (18 B) horizontally is provided. (See Figure 4) becomes unnecessary.
- a drive part 37 of the small arm mechanism 19 be provided in the hanging part 18d of the carriage 18A (18B).
- the harness that bundles the wires and cables to the drive units 26, 27, 2837 is not wired outside, but the rotation axes and arms of the drive units 26, 27, 28. It is preferable to wire through the hollow part formed in Next, the operation of the semiconductor processing system 1 shown in FIG. 3 will be described for the case where the vacuum processing chambers 4 are arranged at different heights on both sides of the vacuum transfer chamber 3 as described above.
- the unprocessed wafer W is taken out from the 4 force and carried into one of the loading port chambers 5.
- a transfer device 17 disposed in the normal pressure transfer chamber 13 is used.
- the wafer W is mounted on a small arm supported by the large arm mechanism 9A (9B). It is handled by one of two articulated arms 19 S, 19 T arranged on the mechanism 19 A (19 B). If there is a processed wafer W in the load lock chamber 5, the unprocessed wafer W is removed after the processed wafer W is taken out by the other of the articulated arms 19T and 19S. Transferred to load lock room 5.
- the unprocessed wafer W is taken out of the load lock chamber 5 and carried into one of the vacuum processing chambers 4.
- a transfer device 17 disposed in the empty transfer chamber 3 is used to exchange a processed wafer and an unprocessed wafer in the vacuum processing chamber 4 and an unprocessed wafer in the load lock chamber 5.
- the wafer is exchanged for a processed wafer.
- the two multi-joint arms 19 S and 19 T are arranged on the small arm mechanism 19 A (19 ⁇ ) supported by the large arm mechanism 9 ⁇ (9 ⁇ ). By using the arms 19S and 19T, the wafer replacement work can be performed quickly.
- the smaller arm mechanism 19 A is composed of the upper two load lock chambers 5 of the multi-stage load lock chamber 5 and the first side 6 a of the vacuum transfer chamber 3.
- the wafer W is mainly transferred between the vacuum processing chamber 4 at 1 height (first transfer path).
- the other small arm mechanism 19 B is provided with the lower two load lock chambers 5 and the second side face 6 b of the vacuum transfer chamber 3 of the multi-stage load lock chamber 5. 2 Wafers W are mainly transferred between the vacuum processing chamber 4 at the height (which is lower than the first height) and the second processing path.
- the small arm mechanisms 19 A and 19 B are in the Z direction and the X direction. And rotate in the horizontal plane. At this time, the two carriages 18A and 18B exchange positions with each other in the Z direction (vertical direction) as necessary so as not to interfere with each other.
- the two small arm mechanisms 19A and 19B can transfer the wafer W on the upper side or the lower side. Further, the operation examples of the small arm mechanisms 19A and 19B are not limited to those described above.
- one of the small arm mechanisms 19 A is used between the upper vacuum processing chamber 4 and the upper load lock chamber 5 (first transport path). Transfers wafer W.
- the other small arm mechanism 19B transfers the wafer W between the lower semiconductor processing system 4 and the lower load chamber 5 (second transfer path). In this way, it is not necessary for the small arm mechanisms 19A and 19B to exchange positions with each other in the vertical direction.
- each small arm mechanism 19A ( 1 9 B) to change the direction of expansion and contraction.
- the small arm mechanisms 19A and 19B are moved vertically. Move and, if necessary, swap positions in the vertical direction.
- FIG. 7 is a cross-sectional view showing a modification of the system shown in FIG. 1.
- the vacuum processing chamber 4 is arranged at different heights on both sides of the vacuum transfer chamber 3, and the large arm mechanism 9A (9 The base 21 of B) can be left and right independent.
- the vacuum transfer chamber 3 is located between the port of the vacuum processing chamber 4 at the first height and the port of the vacuum processing chamber 4 at the second height.
- a partition plate 29 for partially partitioning the inside can be provided. This makes it possible to suppress the diffusion of contaminants between the vacuum processing chambers on the first height side and the second height side. Even in this case, when the wafer W is transferred between the upper stage and the lower stage, the positions of the small arm mechanisms 19A and 19B are exchanged with each other in the vertical direction as necessary.
- FIG. 8 shows a transport device according to another embodiment of the present invention.
- 1 is a perspective view showing a semiconductor processing system.
- FIG. 9 is a cross-sectional view showing a driving unit of the transfer device shown in FIG.
- a transfer device 17 is installed (offset) near one end in the longitudinal direction in the vacuum transfer chamber 3 in order to improve maintainability. That is, the bases of the two large arm mechanisms 9A and 9B are arranged close to one end in the longitudinal direction of the vacuum transfer chamber 3, for example, the load lock chamber side. On one side (for example, the first side) of the vacuum transfer chamber 3, an opening 38 is formed for maintenance, which is selectively opened and closed airtight by a door (not shown).
- the semiconductor processing system 1 also has a structure for taking advantage of a stroke extended by offsetting the base of the large arm mechanism 9A (9B). That is, an opening 39 that is selectively opened and hermetically closed by a lid (not shown) is formed in the upper portion (top plate) of the vacuum transfer chamber 3. An opening 39 is provided with a curtain sensor (area sensor) 39 s. If the stroke of the arm mechanism 9A (9B) is provided with a margin, even if the base of the arm mechanism 9A (9B) is not disposed at the offset position of the vacuum transfer chamber 3, the opening is possible. 39 can be used.
- the moving table 18A (18B) can be made to protrude upward from the opening 39 by extending the large arm mechanism 9A (9B).
- the carriage 18A (18B) and the small arm mechanism 19A (19B) can be protruded from the opening 39 force by projecting the carriage 18A (18B) from the opening 39 force. Maintenance is easy.
- the curtain sensor 39 s is connected to the moving base 18 A (18 B) and small arm machine. It is used to detect that they approach the opening 39 and issue an alarm to avoid a collision accident between the structure 19A (19B) and the operator.
- the large arm mechanisms 9A and 9B are rotatably supported using the lower side wall 6X of the vacuum transfer chamber 3 as a common fixed base.
- the turning centers of the large arm mechanisms 9A and 9B are arranged coaxially, and corresponding to this axis, the drive section 26A of the large arm mechanisms 9A and 9B is provided on the outer surface of the lower side wall 6X. , 26 B will be installed.
- the first driving section 26A of the first large arm mechanism 9A is attached to the lower side wall section 6X.
- the rotation shaft 4 OA of the first drive unit 26 A is air-tightly and rotatably passed through the vacuum transfer chamber 3.
- the rotary shaft 4OA of the first drive unit 26A is a hollow shaft.
- the first drive unit 26B of the second large arm mechanism 9B is mounted outside the first drive unit 26A.
- the rotating shaft 4 OB of the first driving unit 26 B is hermetically and rotatably passed through the hollow rotating shaft 4 OA.
- FIG. 10 is a perspective view showing a modification of the system shown in FIG.
- the ceiling 6y at one end of the vacuum transfer chamber 3 is formed higher than the ceiling 6z at the other end.
- a sub port 41 for loading / unloading the wafer W is formed on the upper side wall at the boundary between the high ceiling 6 y and the low ceiling 6 z.
- Deputy port 41 has A sub-processing chamber 42 for pre-heating or cooling a sub-module, for example, a wafer, is connected via a gate pulp (not shown).
- the sub-processing room 42 is placed on the low ceiling 6z, and the space is effectively used.
- the small arm mechanism 19 A (19 B) is arranged when the small arm mechanism 19 A (19 B) accesses the sub-processing chamber 42. Possible dimensions [ ⁇
- the utility ducts 43 are arranged using the vacant space, and the space is effectively used.
- the duct 43 is made of a square pipe made of plastic or the like, and a bundle of utility piping and wiring is passed through the duct 43 for protection.
- Pipes and wiring for these utilities include pipes and wiring for electricity, water, inert gas (eg, nitrogen), dry air, etc., supplied from the plant to the semiconductor processing system, and semiconductor processing. Includes drainage, heat exhaust, and other piping returning from the system to the factory.
- FIG. 11 is a perspective view showing a modification of the system shown in FIG.
- the housing of the vacuum transfer chamber 3 is configured to be splittable back and forth.
- the bases of the large arm mechanisms 9 A and 9 B are offsetly arranged at the front end side in the vacuum transfer chamber 3.
- the housing of the vacuum transfer chamber 3 can be divided into a front standard section 3.A having the large arm mechanisms 9A and 9B and a rear optional section 3B.
- Optional part 3B at the rear is selected from large and small types with different numbers of connected process modules. You can choose.
- FIGS. 12 and 13 are schematic plan views showing a semiconductor processing system according to still another embodiment of the present invention.
- the small arm mechanism 19A (19B) is disposed so as to be pivotable with respect to the moving table 18A (18B).
- the small arm mechanism 19 A (19 B) does not have the turning function, and the transfer device 17 shown in FIGS. This is the same as that shown in FIG. 1 except that the small arm mechanism 19 A (19 B) does not have a turning function.
- the vacuum processing chamber 4 and the loading port chamber 5 are provided only on one side of the vacuum transfer chamber 3.
- the vacuum processing chamber 4 and the load-lock chamber 5 are arranged in multiple stages at least in one place around the vacuum transfer chamber 3.
- the small arm mechanism 19A (19B) can be moved in the X and Z directions, which are the longitudinal directions of the transfer chamber, by the large arm mechanism 9A (9B) shown in FIG. 1, for example. Further, the small arm mechanism 19 A (19 B) can extend and contract in the Y direction orthogonal to the X direction.
- the two small arm mechanisms 19 A and 19 B extend in the same direction in the Y direction and access the ports of the vacuum processing chamber 4 and the load lock chamber 5. Then, the wafer W is transferred between the vacuum processing chamber 4 and the load lock chamber 5 by the small arm mechanism 19A (19B).
- the transport device 17 has a simpler structure than that shown in FIG. 1, but is suitable for a small semiconductor processing system 1 as shown in FIG.
- the vacuum processing chamber 4 and the load lock chamber 5 are provided on both sides of the vacuum transfer chamber 3.
- the vacuum processing chamber 4 and the load lock chamber 5 are arranged in multiple stages at least at one location on each side of the vacuum transfer chamber 3.
- the small arm mechanism 19A (19B) can be moved in the X and Z directions, which are the longitudinal directions of the transfer chamber, by the large arm mechanism 9A (9B) shown in FIG. 1, for example.
- the small arm mechanism 19 A (19 B) is extendable and contractible in the Y direction orthogonal to the X direction.
- the two small arm mechanisms 19 A and 19 B extend in opposite directions in the Y direction to access the ports of the vacuum processing chamber 4 and the port-lock chamber 5. . Then, the wafer W is transferred between the vacuum processing chamber 4 and the load lock chamber 5 on each side of the vacuum transfer chamber 3 by the small arm mechanism 19A (19B).
- the transfer device 17 has a simpler structure than that shown in FIG. 1, but is suitable for the semiconductor processing system 1 in which the processing sequence for the wafer W as shown in FIG. 13 is limited to some extent.
- FIG. 14 is a perspective view showing a transfer device according to still another embodiment of the present invention.
- the transfer device 17 has first and second bases 21 A and 2 IB which individually move on rails 24 A and 24 B in the X direction.
- the first and second bases 21A and 2IB are provided with first and second elevating mechanisms (reciprocator) 9S and 9T which slide in the vertical direction (Z direction).
- the first and second elevating mechanisms 9S and 9T are parallel to the X direction in the common space formed by the transfer chamber (vacuum transfer chamber or normal pressure transfer chamber) 50 and It has first and second support portions (in this embodiment, tips of the first and second elevating mechanisms 9S, 9T) that can move on first and second vertical planes parallel to each other.
- first and second mobile units (first and second base units) 18A and 18B are supported, respectively. It is moved horizontally by the first and second lifting mechanisms 9S and 9T.
- the first and second mobile tables 18A and 18B are respectively extended from the tips of the first and second lifting mechanisms 9S and 9T toward each other.
- the tips of the first and second mobile tables 18A, 18B are between the above-mentioned first and second vertical planes (vertical planes on which the tips of the first and second lifting mechanisms 9S, 9T move). Terminate at a position beyond the vertical plane (center line of the transfer chamber 50) at the center of, and not reaching the second and first vertical planes.
- first and second small arm mechanisms 19A and 19B are respectively provided on the first and second carriages 18A and 18B. Will be arranged.
- the first and second small arm mechanisms 19A and 19B are rotatable in a horizontal plane, and their rotation centers are defined by the vertical plane (transportation center) between the first and second vertical planes described above. (Center line of room 50).
- the transport device 17 further has a control unit (controller) 20 for controlling the operation of itself.
- the control unit 20 controls the first and second bases in the common space formed by the transfer chamber 50 so that the first and second movable bases 18A and 18B do not interfere with each other. 21 A, 2 IB and the operation of the first and second lifting mechanisms 9S, 9T are controlled. That is, the first and second mobile units are controlled by the control unit 20. 18A and 18B are operated so as to exchange positions with each other in the vertical direction.
- FIGS. 15A and 15B are schematic side views showing a transfer device according to still another embodiment of the present invention.
- This transfer device uses an articulated arm instead of the elevating mechanisms 9 S and 9 T shown in FIG. Fig. 15A shows a state where the mobile base 18A (18B) is lowered, and Fig. 15B shows a state where the mobile base 18A (18B) is raised.
- this transport device can be configured in the same manner as in FIG.
- the transfer device shown in FIGS. 15A and 15B has a base 21A (21B) that moves on rails 24A (24B).
- the base arm 22 is connected to (2 1 B) so that it can turn vertically.
- An intermediate arm 23 is connected to the distal end of the proximal arm 22 so as to be vertically pivotable.
- the movable base 18A (18B) is connected to the end of the intermediate arm 23 so as to be able to turn vertically while maintaining a horizontal state.
- the articulated arm extends and contracts so that the carriage 18A (18B) moves only in the vertical direction.
- the first and second moving tables 18A and 18B are operated so as to exchange positions with each other in the vertical direction.
- FIG. 16 is a perspective view showing a transfer device according to still another embodiment of the present invention.
- the base or base of the transfer device is disposed on or near the floor of the transfer chamber.
- the base (base) 21 is disposed in the ceiling of the transfer chamber (vacuum transfer chamber or normal pressure transfer chamber) 50.
- Transport device shown in Fig. 16 Has the same structure as the transfer device 17 shown in FIG. 1 except that it is turned upside down. That is, the first and second arm mechanisms 9A and 9B are disposed on the base 21 so that the first and second arm mechanisms 9A and 9B extend downward.
- the lower end of each of the first and second large arm mechanisms 9A, 9B functions as a moving table support, and the moving tables 18A, 18B are connected to be vertically pivotable.
- the transfer device of the type shown in FIG. 8 and the transfer device of the type shown in FIG. 14 their bases or bases are arranged on the ceiling side, and the moving table operation mechanism extends downward. It can also be configured as follows. Further, if necessary, it is possible to combine a moving table operating mechanism having a base or a base disposed on the floor side with a moving table operating mechanism having a base or a base disposed on the ceiling side. is there.
- a semiconductor wafer can be transferred reliably and efficiently.
- two small arm mechanisms (handling mechanisms) 19A and 19B should be positioned at the same coordinates in the X direction and at different coordinates in the Z direction (vertical direction) as necessary. Can be done. Even in this case, each of the small arm mechanisms 19A and 19B does not interfere with the moving table operating mechanism of the other small arm mechanism. Therefore, the wafer can be reliably and efficiently transferred to the transfer destination, and the processing throughput is improved. (Also, in a structure in which the bases of the two moving table operation mechanisms are shared, the entire transfer device is used. Therefore, the space efficiency of the device or system can be improved.
- the substrate may be an LCD substrate or the like other than the wafer.
- the small arm mechanism (handling mechanism) may be a structure including a plurality of arms that can slide in a straight line, instead of the articulated arm. In this case, by moving each arm forward and backward, the substrate holding portion at the end thereof can be expanded and contracted.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Robotics (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/545,312 US20060182529A1 (en) | 2003-02-24 | 2004-02-20 | Transfer device and semiconductor processing system |
US13/448,071 US8562275B2 (en) | 2003-02-24 | 2012-04-16 | Transfer device and semiconductor processing system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003045848A JP4283559B2 (ja) | 2003-02-24 | 2003-02-24 | 搬送装置及び真空処理装置並びに常圧搬送装置 |
JP2003-045848 | 2003-02-24 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10545312 A-371-Of-International | 2004-02-20 | ||
US13/448,071 Division US8562275B2 (en) | 2003-02-24 | 2012-04-16 | Transfer device and semiconductor processing system |
Publications (1)
Publication Number | Publication Date |
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WO2004075286A1 true WO2004075286A1 (ja) | 2004-09-02 |
Family
ID=32905536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/002004 WO2004075286A1 (ja) | 2003-02-24 | 2004-02-20 | 搬送装置及び半導体処理システム |
Country Status (5)
Country | Link |
---|---|
US (2) | US20060182529A1 (ja) |
JP (1) | JP4283559B2 (ja) |
KR (2) | KR100810162B1 (ja) |
CN (1) | CN100397608C (ja) |
WO (1) | WO2004075286A1 (ja) |
Cited By (1)
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US20210287927A1 (en) * | 2020-03-11 | 2021-09-16 | Tokyo Electron Limited | Substrate processing system, vacuum substrate transfer module, and substrate transfer method |
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Also Published As
Publication number | Publication date |
---|---|
JP2004265947A (ja) | 2004-09-24 |
KR20050105226A (ko) | 2005-11-03 |
US20120201634A1 (en) | 2012-08-09 |
KR100765559B1 (ko) | 2007-10-09 |
KR100810162B1 (ko) | 2008-03-06 |
JP4283559B2 (ja) | 2009-06-24 |
US8562275B2 (en) | 2013-10-22 |
KR20070074633A (ko) | 2007-07-12 |
CN100397608C (zh) | 2008-06-25 |
CN1698191A (zh) | 2005-11-16 |
US20060182529A1 (en) | 2006-08-17 |
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