WO2023204143A1 - 基板搬送ロボットの制御装置及び基板搬送ロボットの制御方法 - Google Patents
基板搬送ロボットの制御装置及び基板搬送ロボットの制御方法 Download PDFInfo
- Publication number
- WO2023204143A1 WO2023204143A1 PCT/JP2023/015073 JP2023015073W WO2023204143A1 WO 2023204143 A1 WO2023204143 A1 WO 2023204143A1 JP 2023015073 W JP2023015073 W JP 2023015073W WO 2023204143 A1 WO2023204143 A1 WO 2023204143A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- hand
- substrate
- wafer
- control device
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000000758 substrate Substances 0.000 claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 239000013598 vector Substances 0.000 claims description 35
- 230000032258 transport Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012636 effector Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
-
- 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
Definitions
- the present disclosure relates to control of a substrate transfer robot.
- Patent Document 1 discloses a substrate transport method in which a disk-shaped substrate is transported to a substrate processing chamber by a transport means having a hand.
- a pair of sensors each detects passage of the outer edge of a wafer being transported to a substrate processing chamber, thereby detecting a positional shift of the wafer.
- the target position is corrected based on the obtained positional deviation, and as a result, the wafer transport path is corrected.
- Patent Document 1 The acquisition of positional deviation in Patent Document 1 is based on the premise that while the outer edge of the wafer is detected multiple times by the sensor pair, the hand is always oriented perpendicular to the virtual straight line connecting the sensor pair. . Furthermore, it is assumed that the direction in which the wafer is transported is perpendicular to the virtual straight line connecting the sensor pair. However, such limitations may reduce the efficiency of substrate transfer by the robot.
- the present disclosure has been made in view of the above circumstances, and its purpose is to obtain the positional deviation of the substrate with respect to the hand with a simple configuration while maintaining flexibility in substrate transportation.
- a control device for a substrate transfer robot having the following configuration. That is, the substrate transfer robot control device controls the substrate transfer robot including a hand, a joint, and a joint motor.
- the hand is capable of holding a substrate.
- the axis of the joint points in the up-down direction.
- the joint motor drives the joint.
- the control device controls the joint motor so that the substrate passes through a first sensor and a second sensor while being conveyed by the hand.
- the control device is configured such that when the board passes the first sensor and the second sensor, the direction of the hand in plan view is from a direction perpendicular to a straight line connecting the first sensor and the second sensor. Control the joint motor so that it is tilted.
- the control device determines the position of the substrate relative to the hand based on the position of the hand at least three times when any one of a plurality of sensors including the first sensor and the second sensor detected the outer edge of the substrate. Generate positional deviation information indicating the deviation.
- the following method for controlling a substrate transfer robot is provided. That is, in the method for controlling a substrate transfer robot, a substrate transfer robot including a hand, a joint, and a joint motor is controlled.
- the hand is capable of holding a substrate.
- the axis of the joint points in the up-down direction.
- the joint motor drives the joint.
- the joint motor is controlled so that the board passes through a first sensor and a second sensor while being transported by the hand.
- the direction of the hand in plan view when the substrate passes the first sensor and the second sensor is from a direction perpendicular to a straight line connecting the first sensor and the second sensor. Control the joint motor so that it is tilted.
- the position of the substrate relative to the hand is determined based on the position of the hand at least three times when any one of a plurality of sensors including the first sensor and the second sensor detects the outer edge of the substrate. Generate positional deviation information indicating the deviation.
- the substrate is flexibly transported by the hand, the amount of deviation of the substrate with respect to the hand can be appropriately obtained.
- FIG. 1 is a perspective view showing the overall configuration of a robot system according to an embodiment of the present disclosure.
- FIG. 2 is a perspective view showing the configuration of a robot.
- FIG. 2 is a block diagram showing the electrical configuration of a controller.
- FIG. 3 is a plan view showing a state in which the first sensor of the positional deviation detection device detects the first passage of the outer edge of the wafer.
- FIG. 7 is a plan view showing a state in which the first sensor of the positional deviation detection device detects the second passage of the outer edge of the wafer.
- FIG. 7 is a plan view showing a state in which the second sensor of the positional deviation detection device detects the first passage of the outer edge of the wafer.
- FIG. 7 is a plan view showing a state in which the second sensor of the positional deviation detection device detects the second passage of the outer edge of the wafer.
- FIG. 3 is a diagram illustrating a process of determining a wafer positional shift from vectors obtained at four detection timings in a tool coordinate system.
- FIG. 1 is a perspective view showing the configuration of a robot system 100 according to an embodiment of the present disclosure.
- FIG. 2 is a perspective view showing the configuration of the robot 1.
- FIG. 3 is a block diagram showing the configuration of a part of the robot system 100.
- a robot system 100 shown in FIG. 1 is a system that causes a robot (substrate transfer robot) 1 to perform work in a work space such as a clean room.
- the robot system 100 includes a robot 1, a positional deviation detection device 4, and a controller 5.
- the controller 5 is a type of control device.
- the robot 1 functions, for example, as a wafer transfer robot that transports the wafer 2 stored in the storage container 6 to the substrate processing chamber 7.
- the robot 1 is realized by a SCARA type horizontal articulated robot.
- SCARA is an abbreviation for Selective Compliance Assembly Robot Arm.
- the wafer 2 carried by the robot 1 is a type of substrate.
- the wafer 2 is formed into a circular thin plate shape.
- the robot 1 includes a hand 10, a manipulator 11, and joint motors 12a, 12b, and 12c.
- the hand 10 is a type of holding section.
- the hand 10 is a type of end effector, and is generally formed in a V-shape or a U-shape when viewed from above.
- the hand 10 is supported at the tip of a manipulator 11 (specifically, a second link 16, which will be described later).
- the hand 10 rotates with respect to the second link 16 about a third axis c3 that extends in the vertical direction.
- the hand 10 can place the wafer 2 on it.
- a reference position is determined for the hand 10, and when the wafer 2 is placed on a predetermined position of the hand 10 without displacement, the center 2c of the wafer 2 coincides with the reference position of the hand 10.
- this reference position may be referred to as the center 10c of the hand 10.
- the manipulator 11 mainly includes a base 13, a lifting shaft 14, a first link 15, and a second link 16.
- the base 13 is fixed to the ground (for example, the floor of a clean room).
- the base 13 functions as a base member that supports the elevating shaft 14.
- the elevating shaft 14 moves vertically with respect to the base 13. This elevation allows the heights of the first link 15, second link 16, and hand 10 to be changed.
- the first link 15 is supported on the upper part of the lifting shaft 14.
- the first link 15 rotates about a first axis c1 that extends in the vertical direction with respect to the lift shaft 14. Thereby, the attitude of the first link 15 can be changed within the horizontal plane.
- the second link 16 is supported at the tip of the first link 15.
- the second link 16 rotates with respect to the first link 15 about a second axis c2 that extends in the vertical direction. Thereby, the attitude of the second link 16 can be changed within the horizontal plane.
- the manipulator 11 is configured to include three joints whose axes are oriented in the vertical direction.
- the central axis may be referred to by reference numerals c1, c2, and c3.
- the joint motors 12a, 12b, and 12c drive the joints c1, c2, and c3, respectively. Thereby, the position and posture of the hand 10 in plan view can be changed in various ways.
- the joint motors 12a, 12b, and 12c are configured as servo motors, which are a type of electric motor.
- the joint motor 12a that drives the joint c1 is arranged on the first link 15.
- the joint motor 12b that drives the joint c2 is arranged on the first link 15.
- the joint motor 12c that drives the joint c3 is arranged on the second link 16.
- the layout of each motor is not limited to the above.
- the positional deviation detection device 4 includes a first sensor 41 and a second sensor 42. Each of the first sensor 41 and the second sensor 42 is arranged near the path along which the wafer 2 is transported by the robot 1 to the substrate processing chamber 7 . Immediately before the hand 10 reaches the destination substrate processing chamber 7, the hand 10 and the wafer 2 generally move in the direction D1 shown in FIG. The positional deviation detection device 4 is disposed near the substrate processing chamber 7 and on the opposite side of the substrate processing chamber 7 in the direction D1. The first sensor 41 and the second sensor 42 can detect passage of the outer edge of the wafer 2 while the wafer 2 is being transported to the substrate processing chamber 7 .
- Both the first sensor 41 and the second sensor 42 are configured as non-contact sensors.
- the configuration of the sensor is arbitrary, for example, it can be configured as a reflective sensor.
- a transmissive sensor may be used instead of a reflective sensor.
- the configuration of the positional deviation detection device 4 is disclosed in Patent Document 1, etc., so it will be briefly described below.
- the first sensor 41 and the second sensor 42 are arranged appropriately apart from each other in a plan view so as to form an interval smaller than the diameter of the wafer 2.
- the first sensor 41 and the second sensor 42 are both arranged with their detection axes directed in the vertical direction.
- Each of the first sensor 41 and the second sensor 42 can detect passage of the outer edge of the wafer 2.
- the detection results of the first sensor 41 and the second sensor 42 are input to the controller 5.
- the controller 5 determines the center position and orientation of the hand 10 at the timing when the first sensor 41 and the second sensor 42 detect the passage of the outer edge of the wafer 2, for example, using a motor (not shown) provided in the joint motors 12a, 12b, and 12c. can be obtained by the encoder.
- the first sensor 41 can detect the passage of the outer edge of the wafer 2 twice.
- the first detection is shown in FIG. 4, and the second detection is shown in FIG. 5.
- the second sensor 42 can detect the passage of the outer edge of the wafer 2 twice.
- the first detection is shown in FIG. 6, and the second detection is shown in FIG. 7.
- one of the first sensor 41 and the second sensor 42 touches the outer edge of the wafer 2 a total of four times in the order of FIGS. 4, 6, 7, and 5. To detect.
- the orientation of the hand 10 in plan view is inclined from a straight line perpendicular to the virtual straight line PL1 connecting the first sensor 41 and the second sensor 42.
- the robot 1 transports the wafer 2 while simultaneously translating and rotating the hand 10. Therefore, in the process of detecting the outer edge of the wafer 2 in the order of FIGS. 4, 6, 7, and 5, the orientation of the hand 10 changes little by little.
- the controller 5 calculates the center position and orientation of the hand 10.
- a horizontal two-dimensional plane corresponding to a plan view of the transport path of the wafer 2.
- the position on the two-dimensional plane can be represented by a two-dimensional orthogonal coordinate system defined by two orthogonal axes BX and BY, as shown in FIGS. 4 to 7.
- this orthogonal coordinate system may be referred to as a base coordinate system.
- the positions of the first sensor 41 and the second sensor 42 in the base coordinate system are determined in advance and set in the controller 5.
- a vector directed from the center 10c of the hand 10 toward the first sensor 41 is calculated for each of the two detection timings shown in FIGS. 4 and 5.
- a vector directed from the center 10c of the hand 10 toward the second sensor 42 is calculated for each of the two detection timings shown in FIGS. 6 and 7.
- the obtained vectors are indicated by white arrows in FIGS. 4 to 7.
- this orthogonal coordinate system may be referred to as a tool coordinate system.
- the tool coordinate system changes following the position and orientation of the hand 10.
- the four vectors obtained at each of the detection timings from FIG. 4 to FIG. 7 are converted from the base coordinate system to the tool coordinate system. This conversion can be performed with simple calculations using the orientation of the hand 10 in each of the four detections.
- the vectors (VCx, VCy) when this vector is converted to the tool coordinate system are calculated as follows using the well-known rotation formula. can be calculated.
- ⁇ means the angle that the TX axis of the tool coordinate system makes with respect to the BX axis of the base coordinate system, and counterclockwise rotation is positive.
- FIG. 8 shows four vectors plotted in the tool coordinate system.
- the controller 5 arbitrarily selects three of the four vectors and calculates, in the tool coordinate system, the center position of a virtual circle that passes through the tips of the three selected vectors. Since the virtual circle corresponds to the outer edge of the wafer 2, the center of the virtual circle represents the center 2c of the wafer 2. Since the tool coordinate system is defined with the center 10c of the hand 10 as the origin, the coordinates of the center of the virtual circle in the tool coordinate system mean the amount of deviation of the wafer 2 with respect to the hand 10. The amount of deviation can be expressed by a plane vector (ox, oy) extending from the origin of the tool coordinate system to the center of the virtual circle. A vector representing the amount of deviation is shown by a thick line in FIG.
- the controller 5 includes a deviation amount acquisition section 51 and a control section 52.
- the controller 5 is configured as a known computer including a CPU, ROM, RAM, auxiliary storage device, and the like.
- the auxiliary storage device is configured as, for example, an HDD, an SSD, or the like.
- the auxiliary storage device stores a robot control program and the like for implementing the method of controlling the joint motors 12a, 12b, 12c of the present disclosure. Through the cooperation of these hardware and software, the controller 5 can be operated as the deviation amount acquisition section 51, the control section 52, and the like.
- the displacement amount acquisition unit 51 acquires the displacement amount of the wafer 2 based on the detection results of the first sensor 41 and the second sensor 42 that constitute the positional displacement detection device 4.
- the amount of deviation is expressed, for example, by a plane vector (ox, oy).
- the control unit 52 outputs and controls command values to the respective drive motors that drive each part of the robot 1 in accordance with a predetermined operation program or a movement command input by the user, so that the robot 1 moves to a predetermined command position.
- the drive motor includes the above-mentioned joint motors 12a, 12b, and 12c in addition to an electric motor (not shown) for vertically displacing the elevating shaft 14.
- the control unit 52 includes a destination position correction unit 53.
- the original position of the hand 10 when placing the wafer 2 is a position where its center 10c coincides with the reference position 7p of the substrate processing chamber 7.
- the destination position correction unit 53 corrects the position where the hand 10 places the wafer 2 based on the amount of deviation input from the deviation amount acquisition unit 51.
- the amount of deviation is information indicating the positional deviation of the wafer 2 (positional deviation information).
- the correction is made to cancel the above positional deviation. That is, the controller 5 inverts the obtained plane vector (ox, oy) indicating the amount of deviation of the wafer 2, and converts the inverted plane vector (-ox, -oy) from the tool coordinate system to the base coordinate system. do. This conversion is performed based on the orientation ⁇ of the hand 10 when placing the wafer 2 in the substrate processing chamber 7. The transformed vector is added to the coordinates of the destination of the hand 10 in the base coordinate system. As described above, the wafer 2 can be placed correctly so that the center 2c of the wafer 2 coincides with the reference position 7p of the substrate processing chamber 7.
- the orientation of the hand 10 when the wafer 2 passes through the first sensor 41 and the second sensor 42 is perpendicular to the virtual straight line PL1 connecting the first sensor 41 and the second sensor 42. Even if this is not the case, the amount of deviation of the wafer 2 can be determined. Furthermore, even if the orientation of the hand 10 changes while the wafer 2 is passing through the first sensor 41 and the second sensor 42, the amount of displacement of the wafer 2 can be determined correctly. Therefore, in relation to the first sensor 41 and the second sensor 42, the degree of freedom of the transport path of the wafer 2 can be increased. For example, the wafer 2 can be transported along the shortest route while correcting the positional deviation of the wafer 2. As a result, transport throughput can be improved.
- the misalignment of the wafer 2 with respect to the hand 10 is detected while the wafer 2 is being transported to the destination substrate processing chamber 7.
- the destination position correction unit 53 changes the destination position of the hand 10 from the pre-correction position to the post-correction position while the hand 10 is transporting the wafer 2 .
- the wafer 2 can be set in the substrate processing chamber 7 at an accurate position while preventing a decrease in transfer efficiency.
- the controller 5 of this embodiment controls the robot 1 including the hand 10, joints c1, c2, c3, and joint motors 12a, 12b, 12c.
- the hand 10 is capable of holding the wafer 2.
- the axes of joints c1, c2, and c3 all point in the vertical direction.
- Joint motors 12a, 12b, 12c drive corresponding joints c1, c2, c3.
- the controller 5 controls the joint motors 12a, 12b, and 12c so that the wafer 2 passes through the first sensor 41 and the second sensor 42 while being transported by the hand 10.
- the controller 5 is configured such that the direction of the hand 10 in plan view when the wafer 2 passes the first sensor 41 and the second sensor 42 is perpendicular to the virtual straight line PL1 connecting the first sensor 41 and the second sensor 42.
- the joint motors 12a, 12b, and 12c are controlled so that the joint motors 12a, 12b, and 12c are tilted from .
- the controller 5 generates positional deviation information indicating the positional deviation of the wafer 2 with respect to the hand 10 based on the position of the hand 10 at the four detection timings when the first sensor 41 or the second sensor 42 detected the outer edge of the wafer 2. do.
- the amount of displacement of the wafer 2 with respect to the hand 10 can be appropriately obtained.
- the directions of the hand 10 are different from each other at all four detection timings when the first sensor 41 or the second sensor 42 detects the outer edge of the wafer 2.
- the degree of freedom of the path for transporting the wafer 2 by the hand 10 can be increased while obtaining the amount of deviation of the wafer 2.
- the controller 5 of the robot 1 of this embodiment determines the position and orientation of the hand 10 at each of the four detection timings when the first sensor 41 or the second sensor 42 detects the outer edge of the substrate.
- the sensor that detects the outer edge of the wafer 2 among the first sensor 41 and the second sensor 42 at each detection timing will be referred to as a detection sensor.
- the controller 5 obtains a vector indicating the relationship between the position of the detection sensor and the position of the hand 10 in the base coordinate system based on the position of the hand 10.
- the controller 5 converts the obtained four vectors into a tool coordinate system based on the orientation of the hand 10 at each of the four detection timings.
- the controller 5 determines the positional deviation of the wafer 2 in the tool coordinate system based on the four vectors converted to the tool coordinate system.
- the amount of deviation of the wafer 2 with respect to the hand 10 can be determined by simple processing using the tool coordinate system according to the orientation of the hand 10.
- the target position of the hand 10 when placing the wafer 2 at the transfer destination is corrected based on positional deviation information obtained during the process of transferring the wafer 2.
- the wafer 2 can be placed at an accurate position at the transfer destination while suppressing a decrease in transfer throughput and preventing positional deviation.
- both the first sensor 41 and the second sensor 42 detect the outer edge of the wafer 2 twice.
- one of the first sensor 41 and the second sensor 42 may detect the outer edge of the wafer 2 twice, and the remaining sensor may detect the outer edge of the wafer 2 only once. If three vectors are obtained, the position corresponding to the center 2c of the wafer 2 can be obtained without any problem in the tool coordinate system.
- the positional deviation detection device 4 may include a third sensor (not shown) in addition to the first sensor 41 and the second sensor 42.
- the third sensor can detect the outer edge of the wafer 2.
- the third sensor can have the same configuration as the first sensor 41 and the second sensor 42, for example.
- the third sensor can be placed on the virtual straight line PL1 or its extension.
- the third sensor can also be arranged so that the first sensor 41, the second sensor 42, and the third sensor form a triangle. As shown in FIGS. 4 to 7, a vector from the center 10c of the hand 10 toward the third sensor is calculated based on the position of the hand 10 at the timing when the third sensor detects the outer edge of the wafer 2. can do.
- This vector can be used to calculate a vector (ox, oy) representing the amount of deviation of the wafer 2 with respect to the hand 10. For example, it is possible to obtain three vectors by each of the first sensor 41, second sensor 42, and third sensor detecting the outer edge of the wafer 2 once. It is also possible to adopt a configuration in which six vectors are obtained by each of the first sensor 41, second sensor 42, and third sensor detecting the outer edge of the wafer 2 twice.
- the positional deviation detection device 4 may include four or more sensors capable of detecting the outer edge of the wafer 2.
- the directions of the BX axis and BY axis in the base coordinate system are arbitrary.
- the BX axis may be determined such that the left side in FIG. 4 is in the positive direction, or the BY axis may be determined so that the bottom side in FIG. 4 is in the positive direction.
- the directions of the TX axis and TY axis in the tool coordinate system are arbitrary.
- the TX axis can be determined to match the orientation of the hand 10.
- the path along which the wafer 2 is transported by the hand 10 may be linear or curved.
- a state in which the orientation of the hand 10 is perpendicular to the virtual straight line PL1 may occur transiently.
- the direction of the hand 10 may be perpendicular to the virtual straight line PL1.
- the first sensor 41 and the second sensor 42 may be arranged on the base 13 of the robot 1.
- the destination of the wafer 2 by the robot 1 is not limited to the substrate processing chamber 7, and may be another location such as a load lock chamber, for example.
- the number of joints that the manipulator 11 has is not limited to three, but may be one, two, or four or more.
- control described in the above embodiment can also be applied when the robot 1 transports a substrate other than the wafer 2.
- each element including the controller 5 disclosed in the present disclosure can be performed using a general-purpose processor, a dedicated processor, an integrated circuit, an ASIC (Application Specific Integrated Circuit), or a conventional processor configured or programmed to execute the disclosed functions. and/or combinations thereof.
- Processors are considered processing circuits or circuits because they include transistors and other circuits.
- a circuit, unit, or means is hardware that performs the recited functions or is hardware that is programmed to perform the recited functions.
- the hardware may be the hardware disclosed herein or other known hardware that is programmed or configured to perform the recited functions.
- the hardware is a processor, which is considered a type of circuit
- the circuit, means or unit is a combination of hardware and software, the software being used to configure the hardware and/or the processor.
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (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)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Human Computer Interaction (AREA)
- Manipulator (AREA)
Abstract
Description
Claims (5)
- 基板を保持可能なハンドと、
軸が上下方向を向く関節と、
前記関節を駆動する関節モータと、
を備える基板搬送ロボットを制御する制御装置であって、
前記ハンドによって前記基板を搬送しながら第1センサ及び第2センサを通過させ、前記基板が前記第1センサ及び前記第2センサを通過するときの平面視における前記ハンドの向きが、前記第1センサと前記第2センサを結ぶ直線に対して垂直な方向から傾斜しているように、前記関節モータを制御し、
前記第1センサ及び前記第2センサを含む複数のセンサのうち何れかが前記基板の外縁を検出した少なくとも3回における前記ハンドの位置に基づいて、前記ハンドに対する前記基板の位置ズレを示す位置ズレ情報を生成する、基板搬送ロボットの制御装置。 - 請求項1に記載の基板搬送ロボットの制御装置であって、
前記第1センサ及び前記第2センサのうち何れかが前記基板の外縁を検出した少なくとも2回において、検出時の前記ハンドの向きが互いに異なる、基板搬送ロボットの制御装置。 - 請求項1に記載の基板搬送ロボットの制御装置であって、
前記第1センサ及び前記第2センサのうち何れかが前記基板の外縁を検出したそれぞれのタイミングでの、前記ハンドの位置及び向きを求め、
前記ハンドの位置に基づいて、前記第1センサ及び前記第2センサのうち前記基板の外縁を検出したセンサである検出センサの位置と、前記ハンドの位置と、の関係を示すベクトルを求め、
前記ハンドの向きに基づいて、前記ベクトルを、前記ハンドを基準とする座標系であるツール座標系に変換した変換後ベクトルを求め、
少なくとも3つの前記変換後ベクトルに基づいて、前記ツール座標系における前記基板の位置ズレを求める、基板搬送ロボットの制御装置。 - 請求項3に記載の基板搬送ロボットの制御装置であって、
前記基板を搬送する過程で得られた前記位置ズレ情報に基づいて、前記基板を搬送先に置く場合における前記ハンドの目標位置を修正する、基板搬送ロボットの制御装置。 - 基板を保持可能なハンドと、
軸が上下方向を向く関節と、
前記関節を駆動する関節モータと、
を備える基板搬送ロボットを制御する制御方法であって、
前記ハンドによって前記基板を搬送しながら第1センサ及び第2センサを通過させ、前記基板が前記第1センサ及び前記第2センサを通過するときの平面視における前記ハンドの向きが、前記第1センサと前記第2センサを結ぶ直線に対して垂直な方向から傾斜しているように、前記関節モータを制御し、
前記第1センサ及び前記第2センサを含む複数のセンサのうち何れかが前記基板の外縁を検出した少なくとも3回における前記ハンドの位置に基づいて、前記ハンドに対する前記基板の位置ズレを示す位置ズレ情報を生成する、基板搬送ロボットの制御方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202380034957.5A CN119096344A (zh) | 2022-04-20 | 2023-04-13 | 基板运送机器人的控制装置以及基板运送机器人的控制方法 |
KR1020247037733A KR20250005276A (ko) | 2022-04-20 | 2023-04-13 | 기판 반송 로봇의 제어 장치 및 기판 반송 로봇의 제어 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022-069786 | 2022-04-20 | ||
JP2022069786A JP2023159836A (ja) | 2022-04-20 | 2022-04-20 | 基板搬送ロボットの制御装置及び基板搬送ロボットの制御方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023204143A1 true WO2023204143A1 (ja) | 2023-10-26 |
Family
ID=88420081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2023/015073 WO2023204143A1 (ja) | 2022-04-20 | 2023-04-13 | 基板搬送ロボットの制御装置及び基板搬送ロボットの制御方法 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2023159836A (ja) |
KR (1) | KR20250005276A (ja) |
CN (1) | CN119096344A (ja) |
TW (1) | TWI856612B (ja) |
WO (1) | WO2023204143A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10173022A (ja) * | 1996-12-10 | 1998-06-26 | Mecs:Kk | ウェハ搬送装置 |
JPH11243131A (ja) * | 1998-02-26 | 1999-09-07 | Hitachi Techno Eng Co Ltd | ウエファの位置決め方法 |
JP2000068359A (ja) * | 1998-08-24 | 2000-03-03 | Hitachi Techno Eng Co Ltd | ウエハ搬送装置 |
US6405101B1 (en) * | 1998-11-17 | 2002-06-11 | Novellus Systems, Inc. | Wafer centering system and method |
JP2008264980A (ja) * | 2007-04-24 | 2008-11-06 | Kawasaki Heavy Ind Ltd | 基板搬送ロボット |
JP2009500869A (ja) * | 2005-07-11 | 2009-01-08 | ブルックス オートメーション インコーポレイテッド | オンザフライ(onthefly)ワークピースセンタリングを備えた装置 |
JP2017139249A (ja) * | 2016-02-01 | 2017-08-10 | 東京エレクトロン株式会社 | 基板搬送方法及び基板処理システム |
JP2019201112A (ja) * | 2018-05-16 | 2019-11-21 | 東京エレクトロン株式会社 | 搬送方法および搬送装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6640321B2 (ja) | 2018-12-28 | 2020-02-05 | 東京エレクトロン株式会社 | 基板搬送方法及び基板処理装置 |
-
2022
- 2022-04-20 JP JP2022069786A patent/JP2023159836A/ja active Pending
-
2023
- 2023-04-13 WO PCT/JP2023/015073 patent/WO2023204143A1/ja active Application Filing
- 2023-04-13 CN CN202380034957.5A patent/CN119096344A/zh active Pending
- 2023-04-13 KR KR1020247037733A patent/KR20250005276A/ko unknown
- 2023-04-17 TW TW112114154A patent/TWI856612B/zh active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10173022A (ja) * | 1996-12-10 | 1998-06-26 | Mecs:Kk | ウェハ搬送装置 |
JPH11243131A (ja) * | 1998-02-26 | 1999-09-07 | Hitachi Techno Eng Co Ltd | ウエファの位置決め方法 |
JP2000068359A (ja) * | 1998-08-24 | 2000-03-03 | Hitachi Techno Eng Co Ltd | ウエハ搬送装置 |
US6405101B1 (en) * | 1998-11-17 | 2002-06-11 | Novellus Systems, Inc. | Wafer centering system and method |
JP2009500869A (ja) * | 2005-07-11 | 2009-01-08 | ブルックス オートメーション インコーポレイテッド | オンザフライ(onthefly)ワークピースセンタリングを備えた装置 |
JP2008264980A (ja) * | 2007-04-24 | 2008-11-06 | Kawasaki Heavy Ind Ltd | 基板搬送ロボット |
JP2017139249A (ja) * | 2016-02-01 | 2017-08-10 | 東京エレクトロン株式会社 | 基板搬送方法及び基板処理システム |
JP2019201112A (ja) * | 2018-05-16 | 2019-11-21 | 東京エレクトロン株式会社 | 搬送方法および搬送装置 |
Also Published As
Publication number | Publication date |
---|---|
CN119096344A (zh) | 2024-12-06 |
KR20250005276A (ko) | 2025-01-09 |
TWI856612B (zh) | 2024-09-21 |
TW202400374A (zh) | 2024-01-01 |
JP2023159836A (ja) | 2023-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5129910B2 (ja) | ロボットを較正する方法及び装置 | |
KR102105580B1 (ko) | 기판 반송 장치 및 기판 반송 로봇의 교시 방법 | |
CN107530877A (zh) | 机器人的示教方法及机器人 | |
JP2017076710A (ja) | 搬送システム、ロボットおよび搬送方法 | |
KR20210100685A (ko) | 로봇의 위치 보정 방법 및 로봇 | |
WO2023204143A1 (ja) | 基板搬送ロボットの制御装置及び基板搬送ロボットの制御方法 | |
JP7103200B2 (ja) | 搬送システム及び搬送制御方法 | |
JP5453590B2 (ja) | ロボットのハンドの制御方法及びワーク搬送ロボットシステム | |
JPH11231933A (ja) | 移動体の停止位置ズレ量検出装置及び無人搬送車 | |
US20240058952A1 (en) | Controller for substrate transfer robot and control method for joint motor | |
TWI833477B (zh) | 基板運送機器人的控制裝置以及關節馬達的控制方法 | |
JP7149815B2 (ja) | ロボットシステム及びその運転方法 | |
US10403539B2 (en) | Robot diagnosing method | |
JP5353718B2 (ja) | 制御装置、ロボット、ロボットシステム及びロボットの追従制御方法 | |
JP2021145062A (ja) | 角度ズレ取得方法、教示指令値取得方法、角度ズレ取得プログラム、及び教示指令値取得プログラム | |
US20240157567A1 (en) | Picking system | |
US20240051129A1 (en) | Robot and teaching method | |
US20230182301A1 (en) | Controlled compliant gripping and manipulating system for a robot | |
CN118046379A (zh) | 机器人的控制方法以及机器人系统 | |
JP5921901B2 (ja) | ロボット制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23791791 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202380034957.5 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20247037733 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020247037733 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |