WO2012029142A1 - レーザ加工装置および基板位置検出方法 - Google Patents
レーザ加工装置および基板位置検出方法 Download PDFInfo
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- WO2012029142A1 WO2012029142A1 PCT/JP2010/064948 JP2010064948W WO2012029142A1 WO 2012029142 A1 WO2012029142 A1 WO 2012029142A1 JP 2010064948 W JP2010064948 W JP 2010064948W WO 2012029142 A1 WO2012029142 A1 WO 2012029142A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
Definitions
- the present invention relates to a laser processing apparatus and a substrate position detection method for calculating the amount of displacement of a substrate with respect to a processing table.
- a laser processing apparatus microwave laser processing machine which irradiates a laser beam to a work and performs a drilling process etc. as one of the apparatuses which process work (process target object), such as a printed circuit board.
- process work process target object
- position correction positional displacement correction
- a workpiece on which laser processing is performed may undergo expansion and contraction in the surface of the workpiece, it is necessary to increase the number of positioning marks in order to improve the positioning accuracy of the workpiece.
- the camera is moved onto the positioning mark, and the image processing of the positioning mark is performed. Then, the displacement amount (position) of the positioning mark is detected. By repeating these processes for all the positioning marks, the position detection of all the positioning marks is completed. Thereafter, positional deviation correction is performed.
- one of the positioning marks is moved below the camera by moving the XY table. Thereafter, the camera captures an image of the positioning mark, and the image processing apparatus obtains coordinates of the positioning mark in the imaging region. Then, based on the coordinates of the current position of the XY table and the coordinates of the positioning mark in the imaging area, the shift amount of the positioning mark with respect to the machine origin is obtained. In the laser processing apparatus, the amount of deviation of each of the plurality of positioning marks is obtained. Then, the NC device corrects the processing position command value to the substrate at the time of processing based on the deviation amount.
- JP 2000-176666 A Japanese Patent Application Laid-Open No. 10-328863
- the present invention has been made in view of the above, and it is an object of the present invention to obtain a laser processing apparatus and a substrate position detection method capable of detecting displacement of a substrate in a short time.
- the present invention mounts a substrate to be laser-processed and moves in a plane parallel to the main surface of the substrate, and on the substrate
- An imaging unit provided for sequentially imaging the positioning marks used for position detection on the substrate; and the imaging unit sequentially moving on the positioning marks without stopping the processing table.
- a movement instruction unit for outputting a movement instruction to the processing table, an imaging instruction unit for outputting an imaging instruction to the imaging unit when the imaging unit has moved onto the positioning mark, and the movement A mark position for calculating the position of the positioning mark based on the image of the positioning mark captured by the imaging unit while the instruction unit is outputting the movement command to the processing table
- a position shift amount calculation unit that calculates a position shift amount of the substrate with respect to the processing table using the position and the position of the positioning mark calculated by the mark position calculation unit;
- a laser processing unit that performs laser processing while performing position correction with the position shift amount calculated by the position shift amount calculation unit.
- FIG. 1 is a view showing the configuration of a laser processing apparatus according to an embodiment of the present invention.
- FIG. 2 is a diagram showing the configuration of the processing control device and the XY table.
- FIG. 3 is a block diagram showing a configuration of a processing position calculation unit according to the embodiment.
- FIG. 4 is a flowchart of a process of calculating the amount of misalignment of a substrate.
- FIG. 5 is a view showing an example of an image obtained by capturing an image of a mark.
- FIG. 6 is a view showing an example of the arrangement position of the mark.
- FIG. 7 is a diagram showing an example of the imaging order of marks.
- FIG. 8 is a diagram for explaining the difference between the process of calculating the amount of misalignment of a substrate according to the embodiment and the process of calculating the amount of misalignment of a substrate used conventionally.
- FIG. 1 is a view showing the configuration of a laser processing apparatus according to an embodiment of the present invention.
- the laser processing apparatus 100 is an apparatus that performs laser drilling processing on a substrate (workpiece) 4 that is a workpiece by irradiating a laser beam L (pulsed laser beam).
- the laser processing apparatus 100 according to the present embodiment simultaneously performs the processing of moving the camera 39 onto the positioning mark and the image processing of the positioning mark (processing of calculating the position of the positioning mark). The amount of positional deviation of the position where 4 is placed is calculated.
- the laser processing apparatus 100 includes a laser oscillator 1 that oscillates a laser beam L, a laser processing unit 3 that performs laser processing of a substrate 4, and a processing control device 2.
- the laser oscillator 1 oscillates the laser light L and sends it to the laser processing unit 3.
- the laser processing unit 3 includes galvano mirrors 35X and 35Y, galvano scanners 36X and 36Y, a condensing lens (f ⁇ lens) 34, an XY table (processing table) 30, and a camera 39.
- the galvano scanners 36X and 36Y have a function of changing the trajectory of the laser beam L to move the irradiation position on the substrate 4, and the laser beam L is two-dimensionally processed in each processing area set in the substrate 4 Scan to
- the galvano scanners 36X and 36Y rotate the galvano mirrors 35X and 35Y to a predetermined angle in order to scan the laser light L in the XY direction.
- the galvano mirrors 35X and 35Y reflect the laser beam L and deflect it to a predetermined angle.
- the galvano mirror 35X deflects the laser beam L in the X direction
- the galvano mirror 35Y deflects the laser beam L in the Y direction.
- the condenser lens 34 is a telecentric condenser lens.
- the condensing lens 34 deflects the laser beam L in a direction perpendicular to the main surface of the substrate 4 and condenses (irradiates) the laser beam L on the processing position (hole position Hx) of the substrate 4.
- the substrate 4 is an object to be processed such as a printed wiring board, and a plurality of holes are drilled to form through holes.
- the substrate 4 has, for example, a three-layer structure of a copper foil (conductor layer), a resin (insulation layer), and a copper foil (conductor layer).
- the XY table 30 mounts the substrate 4 and moves in the XY plane by driving of motors 42X and 42Y described later. Thereby, the XY table 30 moves the substrate 4 in the in-plane direction.
- a range (scannable area) in which laser processing can be performed by operation of the galvano mechanism (movement of the galvano scanners 36X and 36Y) without moving the XY table 30 is a processing area (scan area).
- the galvano scanners 36X and 36Y two-dimensionally scan the laser light L after moving the XY table 30 in the XY plane.
- the XY table 30 moves in order such that the center of each processing area is directly below the center of the condenser lens 34 (galvano origin).
- the galvano mechanism operates such that each hole position Hx set in the processing area becomes the irradiation position of the laser light L in order.
- the movement between the processing areas by the XY table 30 and the two-dimensional scanning of the laser light L in the processing area by the galvano mechanism are sequentially performed in the substrate 4. Thereby, all the hole positions Hx in the substrate 4 are all laser processed.
- the camera (imaging unit) 39 is disposed in the vicinity of a processing head (not shown) that irradiates the substrate 4 with the laser light L.
- the camera 39 picks up a plurality of positioning marks (hereinafter referred to as marks 6) provided in advance on the substrate 4 and sends the picked up image to the processing control device 2.
- marks 6 a plurality of positioning marks
- the camera 39 captures an image of the mark 6 while moving the camera 39 on the substrate 4. Therefore, the camera 39 acquires an image in a short time by a shutter function or the like.
- the mark 6 is an alignment mark for correcting the positional deviation of the substrate 4 caused by the expansion and contraction of the substrate 4 and the like.
- the position of the camera 39 is fixed, and in the laser processing apparatus 100, the relative position between the camera 39 and the substrate 4 is changed by moving the position of the substrate 4 by the XY table 30.
- the operation of the laser processing apparatus 100 may be described as the relative position between the camera 39 and the substrate 4 is changed by moving the position of the camera 39.
- the processing control device 2 is connected to the laser oscillator 1 and the laser processing unit 3 (not shown), and controls the laser oscillator 1 and the laser processing unit 3.
- the processing control device 2 is the difference between the actual position (detection result) of the mark 6 and the expected position (theoretical value when there is no positional deviation) of the mark 6 with respect to the machine origin (reference position on the XY table 30)
- the laser processing position (coordinates) of the substrate 4 is corrected based on the positional displacement amount 208) described later.
- the processing control device 2 calculates the positional deviation amount 208 based on the detection result of the mark position by the camera 39, and controls the laser processing position of the substrate 4 so as to correct the positional deviation amount 208.
- the processing control device 2 instructs the laser oscillator 1 and the laser processing unit 3 on the laser processing conditions set in the processing program. Further, before laser processing the substrate 4, the processing control device 2 calculates the amount of positional deviation 208 in the surface of the substrate 4 based on the detection position of the mark 6.
- the processing control device 2 moves the camera 39 onto the mark 6 in order without stopping the movement of the camera 39 (XY table 30). Then, the processing control device 2 captures an image of the mark 6 by the camera 39 when the camera 39 comes on the mark 6 while moving the camera 39 in the XY plane. Thereby, the processing control device 2 simultaneously performs the movement processing of the camera 39 and the image processing using the captured image of the mark 6 (processing of calculating the position of the mark 6).
- the processing control device 2 is configured by a computer or the like, and controls the laser oscillator 1 and the laser processing unit 3 by NC (Numerical Control) control or the like.
- the processing control device 2 is configured to include a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), and the like.
- CPU central processing unit
- ROM read only memory
- RAM random access memory
- the processing control device 2 controls the laser oscillator 1 and the laser processing unit 3
- the CPU reads the processing program stored in the ROM by the user's input from the input unit (not shown), and the RAM Expand in the internal program storage area and execute various processing.
- Various data generated during this process are temporarily stored in a data storage area formed in the RAM.
- the processing control device 2 controls the laser oscillator 1 and the laser processing unit 3.
- FIG. 2 is a diagram showing the configuration of the processing control device and the XY table.
- the processing control device 2 is connected to the servo amplifiers 41X and 41Y, and the servo amplifiers 41X and 41Y are connected to the motors 42X and 42Y, respectively.
- the motors 42X and 42Y are connected to the encoders 43X and 43Y, respectively, and to the XY table 30.
- the processing control device 2 outputs a control signal (X direction control command) for controlling the position of the XY table 30 in the X direction to the servo amplifier 41X.
- the processing control device 2 also outputs a control signal (Y direction control command) for controlling the position of the XY table 30 in the Y direction to the servo amplifier 41Y.
- the servo amplifiers 41X and 41Y respectively amplify the X-direction control command and the Y-direction control command sent from the processing control device 2 and send them to the motors 42X and 42Y.
- the motor 42X moves the XY table 30 to a position (X coordinate) according to the X direction control command in the XY plane (in a plane parallel to the main surface of the substrate 4). Further, the motor 42Y moves the XY table 30 to a position (Y coordinate) according to the Y direction control command in the XY plane.
- the XY table 30 includes a linear scale 40X that detects the position (coordinates) of the XY table 30 in the X direction, and a linear scale 40Y that detects the position of the XY table 30 in the Y direction.
- the linear scales 40X and 40Y send the detected position (hereinafter referred to as the table position 101) of the detected XY table 30 to the processing control device 2.
- the table position 101 is information indicating the relative position of the XY table 30 with respect to the camera 39.
- the linear scales 40X and 40Y may be disposed in the vicinity of the XY table 30, or may be disposed at another position different from the XY table 30 and configured separately from the XY table 30.
- the encoders 43X and 43Y are connected to the motors 42X and 42Y and the processing control device 2.
- the encoder 43X detects the state of the motor 42X (the operating state corresponding to the X-direction control command), and sends the detection result to the processing control device 2.
- the encoder 43Y detects the state of the motor 42Y (the operation state according to the Y direction control command), and sends the detection result to the processing control device 2.
- the camera 39 captures an image of the mark 6 disposed on the substrate 4, and sends the captured image to the processing control device 2.
- the processing control device 2 includes a processing position calculation unit 20.
- the processing position calculation unit 20 determines the position of the substrate 4 (coordinates in the XY plane) (hereinafter referred to as substrate coordinates) based on the image of the mark 6 captured by the camera 39, the table position 101 measured by the linear scales 40X and 40Y, and the like. Calculate 201).
- the processing position calculation unit 20 uses the correspondence relationship (substrate positional deviation information 151 described later) between the moving speed of the XY table 30 and the positional deviation amount G of the substrate 4 caused by the movement of the XY table 30 to obtain substrate coordinates 201. Correct the
- the processing position calculation unit 20 causes the camera 39 to capture the image of the mark 6, and based on the captured image, Coordinates (mark coordinates 205 described later) are calculated.
- the processing position calculation unit 20 uses the correspondence relationship between the moving speed of the XY table 30 and the time required from the imaging command of the mark 6 to the actual imaging of the mark 6 after the imaging command of the mark 6 is output. to correct.
- the processing position calculation unit 20 calculates the difference between the mark coordinates 206 obtained by correcting the mark coordinates 205 and the coordinates of the mark 6 on the processing program (mark position information 152 described later) Calculated as The processing position calculation unit 20 calculates the positional deviation amount 208 of the substrate 4 for each of the marks 6.
- the processing control device 2 corrects the laser processing position on the substrate 4 based on the displacement amount 208 of the substrate 4 calculated by the processing position calculation unit 20.
- FIG. 3 is a block diagram showing a configuration of a processing position calculation unit according to the embodiment.
- the processing position calculation unit 20 includes a movement command output unit 21, a speed calculation unit 22, a table position input unit 23, a substrate position calculation unit 24, an imaging command output unit 25, an image input unit 26, an image processing unit 27, and a coordinate correction unit 28.
- a misalignment amount calculation unit 29, a substrate misalignment information storage unit M1, a processing program storage unit M2, and an imaging required time storage unit M3 are provided.
- the substrate positional deviation information storage unit M1 is a memory for storing substrate positional deviation information 151 indicating the correspondence between the moving speed of the XY table 30 and the positional deviation amount G of the substrate 4 caused by the movement of the XY table 30. .
- the substrate positional deviation information 151 is read by the substrate position calculation unit 24.
- the processing program storage unit M2 is a memory or the like that stores a processing program used for laser processing of the substrate 4 and detection of misalignment.
- the processing program stored in the processing program storage unit M2 includes mark position information 152 indicating the position of the mark 6 (coordinates within the substrate 4).
- the mark position information 152 is read by the movement command output unit 21 and the imaging command output unit 25.
- the imaging required time storage unit M3 is a memory or the like that stores, as imaging required time information 153, the time required for the camera 39 to capture an image of the mark 6 after the imaging command of the mark 6 is output.
- the imaging required time information 153 is read by the coordinate correction unit 28.
- the movement command output unit 21 instructs the servo amplifiers 41X and 41Y to control (X-direction control instruction, Y-direction control instruction) based on the origin coordinates of the substrate 4 with respect to the reference position on the XY table 30 and the mark position information 152. Output).
- the X-direction control command and the Y-direction control command are information for instructing the movement amount of the substrate 4 in the X direction and the movement amount in the Y direction, respectively.
- the movement command output unit 21 outputs control commands to the servo amplifiers 41X and 41Y so that the camera 39 sequentially passes over the marks 6 with respect to the marks 6 arranged on the substrate 4.
- the movement command output unit 21 also sends the control command output to the servo amplifiers 41X and 41Y to the speed calculation unit 22.
- the speed calculation unit 22 calculates the moving speed of the XY table 30 based on the control command output from the movement command output unit 21.
- the velocity calculating unit 22 sends the calculated moving velocity to the substrate position calculating unit 24 and the coordinate correcting unit 28 as the table moving velocity Tv.
- the table position input unit 23 inputs the position (table position 101) of the XY table 30 sent from the linear scales 40X and 40Y, and sends the position to the substrate position calculation unit 24.
- the substrate position calculation unit 24 calculates the substrate coordinates 201 based on the table position 101 from the table position input unit 23 which changes momentarily and the origin coordinates of the substrate 4 with respect to the reference position on the XY table 30.
- the substrate 4 and the XY table 30 have rigidity. For this reason, there is a positional deviation between the actual relative position between the camera 39 and the substrate 4 and the substrate coordinates 201 calculated based on the table position 101 detected by the linear scales 40X and 40Y. 4) has occurred.
- the substrate coordinates 201 are corrected based on the substrate positional deviation information 151 in the substrate positional deviation information storage unit M1, and the substrate coordinates 202 are calculated.
- the substrate position calculation unit 24 calculates the positional deviation amount Gv of the substrate 4 corresponding to the movement speed of the XY table 30 based on the table movement speed Tv and the substrate positional deviation information 151.
- the substrate position calculation unit 24 calculates the substrate coordinates 202 by adding the calculated positional displacement amount Gv of the substrate 4 to the substrate coordinates 201.
- the substrate position calculation unit 24 sends the calculated substrate coordinates 202 to the imaging command output unit 25 as the position of the substrate 4.
- the imaging command output unit 25 outputs an imaging command to the camera 39 based on the mark position information 152 and the position of the substrate 4 calculated by the substrate position calculating unit 24.
- the imaging command output unit 25 outputs an imaging command to the camera 39 at the timing when the camera 39 reaches the mark 6.
- the image input unit 26 inputs an image of the mark 6 captured by the camera 39 and sends the image to the image processing unit 27.
- the image processing unit 27 calculates the barycentric position of the mark 6 based on the image of the mark 6.
- the image processing unit 27 sends the calculated barycentric position to the coordinate correction unit 28 as the mark coordinate 205.
- the coordinate correction unit 28 corrects the mark coordinates 205 on the basis of the imaging required time information 153 and the table movement speed Tv from the speed calculation unit 22, thereby calculating the mark coordinates 206. Specifically, the coordinate correction unit 28 calculates the positional deviation amount of the mark coordinates 205 according to the moving speed of the XY table 30 based on the imaging required time information 153 and the table moving speed Tv. The coordinate correction unit 28 calculates the mark coordinates 206 by adding the calculated positional displacement amount to the mark coordinates 205. The coordinate correction unit 28 calculates mark coordinates 206 for each of the marks 6. The coordinate correction unit 28 sends the calculated mark coordinates 206 to the displacement amount calculation unit 29.
- the positional deviation amount calculation unit 29 calculates a difference between the mark coordinates 206 and the ideal coordinates of the mark 6 calculated based on the processing program (mark position information 152) as the positional deviation amount 208 of the substrate 4.
- the misregistration amount calculation unit 29 calculates the misregistration amount 208 for each of the marks 6.
- the displacement amount calculation unit 29 stores the calculated displacement amount 208 in the processing program storage unit M2.
- FIG. 4 is a flowchart of a process of calculating the amount of misalignment of a substrate by the laser processing apparatus.
- the processing position calculation unit 20 After the substrate 4 to be laser-processed is placed on the XY table 30 of the laser processing apparatus 100, the processing position calculation unit 20 starts calculation processing of the displacement amount (displacement amount from the ideal value) of the substrate 4 .
- the movement command output unit 21 reads the mark position information 152 in the machining program from the machining program storage unit M2.
- the movement command output unit 21 outputs a control command to the servo amplifiers 41X and 41Y based on the mark position information 152.
- the control command is sent to the servo amplifiers 41X and 41Y to pass over the mark 6 in order without stopping the movement of the camera 39. It is output. Thereby, the camera 39 moves in order without stopping on the mark 6.
- the movement command output unit 21 also sends the control command output to the servo amplifiers 41X and 41Y to the speed calculation unit 22.
- the speed calculation unit 22 calculates the moving speed of the XY table 30 based on the control command output from the movement command output unit 21.
- the velocity calculating unit 22 sends the calculated moving velocity to the substrate position calculating unit 24 as a table moving velocity Tv.
- the linear scales 40X and 40Y detect the position of the XY table 30 and send it to the table position input unit 23.
- the table position input unit 23 inputs the position of the XY table 30 sent from the linear scales 40X and 40Y as the table position 101, and sends it to the substrate position calculation unit 24.
- the substrate position calculation unit 24 calculates the substrate coordinates 201 based on the table position 101 from the table position input unit 23 which changes momentarily. Furthermore, the substrate position calculation unit 24 calculates the positional deviation amount Gv of the substrate 4 corresponding to the movement speed of the XY table 30 based on the table movement speed Tv and the substrate positional deviation information 151. The substrate position calculation unit 24 calculates a substrate coordinate 202 which is a relative position between the camera 39 and the substrate 4 by adding the calculated positional deviation amount Gv of the substrate 4 to the substrate coordinate 201. As a result, the substrate position calculation unit 24 can calculate the accurate position of the substrate 4 even for the mark 6 at the corner where the XY table 30 moves simultaneously in the X direction and the Y direction. The substrate position calculation unit 24 sends the calculated substrate coordinates 202 to the imaging command output unit 25 as the position of the substrate 4.
- the imaging command output unit 25 calculates the distance to the position (imaging position) of the mark 6 based on the mark position information 152 and the substrate coordinates 202 calculated by the substrate position calculation unit 24 (step S10).
- the imaging command output unit 25 determines whether the camera 39 has reached the mark position (step S20). The imaging command output unit 25 determines that the camera 39 has reached the mark position when the substrate coordinates 202 become the same as the coordinates of the mark 6.
- the imaging command output unit 25 continues calculating the distance to the imaging position of the mark 6 (step S10).
- the imaging command output unit 25 outputs an imaging command to the camera 39.
- the camera 39 captures an image of the mark 6 (step S30). Since the camera 39 captures an image of the mark 6 while moving, the camera 39 captures an image of the mark 6 using a sufficient amount of light (illumination) sufficient to capture the mark 6.
- the camera 39 sends the captured image to the image input unit 26.
- the image input unit 26 inputs an image of the mark 6 captured by the camera 39 and sends the image to the image processing unit 27.
- the image processing unit 27 performs image processing of the image sent from the image input unit 26 (step S40). Specifically, the image processing unit 27 calculates the feature amount of the mark 6 (for example, the barycentric position of the mark 6) based on the image of the mark 6.
- the image processing unit 27 sends the calculated barycentric position to the coordinate correction unit 28 as the mark coordinate 205.
- the coordinate correction unit 28 calculates the mark position by correcting the result of the image processing (step S50). Specifically, the coordinate correction unit 28 corrects the mark coordinates 205 based on the imaging required time information 153 and the table moving speed Tv, and thereby calculates the mark coordinates 206 as the mark position.
- the coordinate correction unit 28 calculates the amount of positional deviation of the mark coordinates 205 according to the moving speed of the XY table 30 based on the imaging required time information 153 and the table moving speed Tv. . Then, by adding the calculated positional displacement amount to the mark coordinates 205, the mark coordinates 206 are calculated.
- FIG. 5 is a view showing an example of an image obtained by capturing an image of a mark.
- the central portion 81 of the image 8 and the center of gravity 61 of the mark 6 do not always overlap due to the expansion and contraction of the substrate 4 and the like.
- the amount of positional deviation between the central portion 81 which is the view center of the camera 39 and the center of gravity 61 of the mark 6 is calculated as the mark coordinate 205. Further, the positional deviation amount 205 is corrected based on the imaging required time information 153, whereby the mark coordinates 206 are calculated.
- FIG. 6 is a view showing an example of the arrangement position of the mark.
- FIG. 7 is a diagram showing an example of the imaging order of marks. 6 and 7 show a top view of the substrate 4.
- the marks 6 are formed in the vicinity of four apexes on the substrate 4 or in the vicinity of the periphery of the processing hole area (processing hole pattern) 5 where processing holes are formed (outside the processing hole area). Keep it.
- FIG. 6 shows the case where a plurality of machined hole areas 5 are set on the substrate 4 and four marks 6 are arranged in the vicinity of the periphery of each machined hole area 5.
- FIG. 7 shows the case where the marks 6 are imaged in the order of the marks 61 to 68.
- the mark 61 disposed in the vicinity of the top left vertex on the substrate 4 is imaged
- the mark 62 disposed in the vicinity of the first processing area 5 closest to the mark 61 is imaged.
- the marks 63, the marks 64, and the marks 65 arranged around the first processing hole area 5 are imaged in order.
- the mark 66, the mark 67, and the mark 68 arranged around the second processing hole area 5 arranged next to the first processing hole area 5 are imaged in order.
- the marks 6 are sequentially imaged in a predetermined order in which the moving distance of the camera 39 becomes short.
- the coordinate correction unit 28 calculates mark coordinates 206 for each of the marks 6.
- the coordinate correction unit 28 sends the calculated mark coordinates 206 to the displacement amount calculation unit 29.
- the positional deviation amount calculation unit 29 calculates the difference between the mark coordinates 206 and the coordinates (mark position information 152) on the processing program of the mark 6 as the positional deviation amount 208 of the substrate 4.
- the displacement amount calculation unit 29 stores the calculated displacement amount 208 in the processing program storage unit M2.
- the imaging command output unit 25 determines whether an imaging command has been output to the camera 39 for all the marks 6 based on the mark position information 152 and the substrate coordinates 202 calculated by the substrate position calculating unit 24. Do. In other words, it is determined whether all the marks 6 have been imaged (step S60).
- the imaging command output unit 25 If the imaging command output unit 25 has not output an imaging command to the camera 39 for all the marks 6 (No at Step S60), the imaging command output unit 25 performs the processes at Steps S10 to S50 for the next mark 6. The imaging command output unit 25 repeats the processing of steps S10 to S50 until an imaging command is output to the camera 39 for all the marks 6.
- the laser processing apparatus 100 ends the imaging process on the marks 6. Thereby, all the marks 6 set in each processing hole area 5 are imaged by the camera 39. Since the marks 6 are arranged at various positions on the substrate 4, the position shift amount 208 in the substrate 4 is calculated by the processing position calculation unit 20 calculating the position shift amount 208 of the substrate 4 on each mark 6. It is possible to calculate the in-plane distribution of
- the output processing of the movement command to the XY table 30 and the image processing of the mark 6 are performed independently of each other.
- the operation of the movement command output unit 21 (movement of the XY table 30) and the operation of the image processing unit 27 are made independent of each other.
- FIG. 8 is a diagram for explaining the difference between the process of calculating the amount of misalignment of a substrate according to the embodiment and the process of calculating the amount of misalignment of a substrate used conventionally.
- the movement of the XY table 30 is stopped 72, and then the image processing 73 of the mark 6 is performed.
- the movement 71, the stop 72, and the image processing 73 are repeated in order. Therefore, the stop 72 of the XY table 30 and the image processing 73 of the mark 6 are performed between the movement 71 and the movement 71 of the XY table 30. Therefore, in the process of calculating the positional deviation of the substrate 4, the time required for the stop 72 and the image processing 73 is required for the same number of times as the number of the marks 6. Therefore, when the number of marks 6 increases, the number of stops 72 increases and the productivity decreases.
- the movement 71 of the XY table 30 is continuously performed without stopping the XY table 30. Further, image processing 73 of the mark 6 is performed while moving the XY table 30. In other words, while moving the XY table 30, acquisition of mark images and image processing (feature extraction) are performed. As described above, in the present embodiment, since the task of the movement 71 and the task of the image processing 73 are separated, it is possible to execute the image processing 73 during the movement 71.
- the processing time for the stop 72 and the image processing 73 can be reduced, and the tact time can be shortened.
- the processing control device 2 After the positional displacement amount calculation unit 29 stores the positional displacement amounts 208 of all the marks 6 in the processing program storage unit M2, the processing control device 2 starts laser processing of the substrate 4. When the laser processing of the substrate 4 is performed, the processing control device 2 corrects the laser processing position on the substrate 4 based on the displacement amount 208 of the substrate 4 calculated by the processing position calculation unit 20.
- the movement command output unit 21 reads the machining program and the positional deviation amount 208 from the machining program storage unit M2. Then, the movement command output unit 21 corrects the coordinates of the machining hole Hx set in the machining program based on the positional deviation amount 208 for each position of the machining hole Hx. Then, a movement command corresponding to the coordinates of the processing hole Hx after correction is output to the servo amplifiers 41X and 41Y. Thereby, the laser processing of the processed hole Hx is performed while the coordinates of the processed hole Hx are corrected by the position according to the positional displacement amount of the substrate 4.
- the calculation of the displacement amount of the substrate 4 is performed each time the substrate 4 is placed on the XY table 30.
- the substrate 4 is placed on the XY table 30, the amount of displacement of the substrate 4 is calculated, and the substrate 4 is laser-processed.
- substrate 4 is mounted in XY table 30, and positional offset amount of the following board
- the laser processing apparatus 100 may calculate the substrate coordinates 201 without using the linear scales 40X and 40Y.
- the substrate coordinates 201 are calculated using deviation information (droop amount) which is a difference between the command values to the motors 42X and 42Y and the actual rotation numbers of the motors 42X and 42Y.
- the table position 101 is calculated by subtracting the deviation information from the integrated value (total value) of the control command output from the movement command output unit 21 by the substrate position calculation unit 24.
- the command values to the motors 42X and 42Y correspond to control commands to the servo amplifiers 41X and 41Y. Further, the actual rotational speeds of the motors 42X and 42Y are detected by the encoders 43X and 43Y. Therefore, the deviation information is the difference between the current value of the control command to the servo amplifiers 41X and 41Y and the number of rotations (current value) detected by the encoders 43X and 43Y.
- the substrate coordinates 201 calculated using the deviation information also change according to the moving speed of the XY table 30.
- the encoders 43X and 43Y are unnecessary, and when the substrate coordinates 201 are calculated using the deviation information, the linear scales 40X and 40Y are unnecessary. Become.
- the correction from the mark coordinates 205 to the mark coordinates 206 is not limited to the correction using the imaging required time information 153 and the table moving speed Tv.
- the correction amount of coordinates from the mark coordinates 205 to the mark coordinates 206 according to the table moving speed Tv may be stored in advance in a predetermined database or the like. In this case, the coordinate correction amount according to the table moving speed Tv is calculated in advance using the imaging required time information 153 and the table moving speed Tv.
- the shutter speed of the camera 39 may be included in the imaging required time information 153.
- the imaging command output unit 25 may output an imaging command to the camera 39 slightly earlier in consideration of the shutter speed of the camera 39.
- the number of cameras 39 is not limited to one, and may be plural. In this case, the plurality of marks 6 are simultaneously imaged by the plurality of cameras 39.
- the movement of the substrate 4 (XY table 30) may be constant velocity movement or unequal velocity movement.
- the moving speed of the XY table 30 is not limited to the case of calculating based on the control command to the servo amplifiers 41X and 41Y, and may be obtained by actually measuring the moving speed of the XY table 30 directly.
- the image processing processing for calculating the position of the mark 6
- the movement processing to each mark 6 is performed. It is possible to detect the misalignment of the substrate 4 in a short time.
- the substrate coordinates 201 are corrected to the substrate coordinates 202 using the substrate positional deviation information 151 and the table moving speed Tv, the accurate position on the substrate 4 can be calculated. Therefore, it becomes possible to capture the image of the mark 6 at the correct position on the substrate 4.
- the mark coordinates 205 are corrected to the mark coordinates 206 using the imaging required time information 153 and the table moving speed Tv, it is possible to calculate the accurate position of the mark 6. Therefore, the positional deviation of the substrate 4 can be accurately calculated.
- the linear scale 40X , And 40Y are unnecessary, so that the substrate coordinates 201 can be calculated with a simple configuration.
- the laser processing apparatus and the substrate position detection method according to the present invention are suitable for calculating the amount of displacement of the substrate with respect to the processing table.
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Abstract
Description
図1は、本発明の実施の形態に係るレーザ加工装置の構成を示す図である。レーザ加工装置100は、レーザ光L(パルスレーザ光)を照射することによって被加工物である基板(ワーク)4にレーザ穴あけ加工を行う装置である。本実施の形態のレーザ加工装置100は、位置決め用マーク上へカメラ39を移動させる処理と、位置決め用マークの画像処理(位置決め用マークの位置を算出する処理)と、を同時に行うことによって、基板4を載置した位置の位置ずれ量を算出する。
2 加工制御装置
3 レーザ加工部
4 基板
5 加工穴領域
6 マーク
20 加工位置算出部
21 移動指令出力部
22 速度算出部
23 テーブル位置入力部
24 基板位置算出部
25 撮像指令出力部
26 画像入力部
27 画像処理部
28 座標補正部
29 位置ずれ量算出部
30 XYテーブル
39 カメラ
40X,40Y リニアスケール
43X,43Y エンコーダ
100 レーザ加工装置
L レーザ光
M1 基板位置ずれ情報記憶部
M2 加工プログラム記憶部
M3 撮像所要時間記憶部
Claims (6)
- レーザ加工対象である基板を載置するとともに前記基板の主面と平行な面内で移動する加工テーブルと、
前記基板上に設けられて前記基板上の位置検出に用いられる位置決め用マークを順番に撮像する撮像部と、
前記加工テーブルが停止することなく連続的に前記撮像部が前記位置決め用マーク上に順番に移動してくるよう、前記加工テーブルへの移動指令を出力する移動指示部と、
前記撮像部が前記位置決め用マーク上に移動してきた際に、前記撮像部に撮像指示を出力する撮像指示部と、
前記移動指示部が前記加工テーブルへの移動指令を出力している間に、前記撮像部が撮像した前記位置決め用マークの画像に基づいて、前記位置決め用マークの位置を算出するマーク位置算出部と、
前記マーク位置算出部が算出した前記位置決め用マークの位置を用いて、前記基板の前記加工テーブルに対する位置ずれ量を算出する位置ずれ量算出部と、
前記基板のレーザ加工位置を、前記位置ずれ量算出部が算出した位置ずれ量で位置補正しながらレーザ加工を行うレーザ加工部と、
を備えることを特徴とするレーザ加工装置。 - 前記撮像部と前記基板との間の相対位置を、前記加工テーブルの位置に基づいて算出する基板位置算出部をさらに備え、
前記基板位置算出部は、前記加工テーブルの移動速度に応じて変化する前記加工テーブルと前記基板との間の位置ずれ量を、前記加工テーブルの移動速度に基づいて算出し、算出した位置ずれ量を用いて前記相対位置を補正し、
前記撮像指示部は、前記基板位置算出部が補正した前記相対位置に基づいて、前記撮像部に撮像指示を出力することを特徴とする請求項1に記載のレーザ加工装置。 - 前記加工テーブルの位置を検出するリニアスケールをさらに備え、
前記基板位置算出部は、前記リニアスケールが検出した前記加工テーブルの位置に基づいて前記相対位置を算出することを特徴とする請求項2に記載のレーザ加工装置。 - 前記加工テーブルを移動させるモータと、
前記モータの回転数を検出するエンコーダと、
をさらに備え、
前記基板位置算出部は、前記加工テーブルへの移動指令に対応する前記モータへの制御指令、前記エンコーダによる検出結果および前記加工テーブルへの移動指令の積算値を用いて前記相対位置を算出することを特徴とする請求項2に記載のレーザ加工装置。 - 前記撮像指示を出力してから前記位置決め用マークの画像が撮像されるまでに要する時間と、前記加工テーブルの移動速度と、に基づいて、前記マーク位置算出部が算出した前記位置決め用マークの位置を補正する位置補正部をさらに備え、
前記位置ずれ量算出部は、前記位置補正部が補正した位置決め用マークの位置を用いて、前記基板の前記加工テーブルに対する位置ずれ量を算出することを特徴とする請求項1~4のいずれか1つに記載のレーザ加工装置。 - レーザ加工対象である基板を載置するとともに前記基板の主面と平行な面内で移動する加工テーブルと、前記基板上に設けられて前記基板上の位置検出に用いられる位置決め用マークを順番に撮像する撮像部と、を備えたレーザ加工装置が、前記加工テーブルが停止することなく連続的に前記撮像部が前記位置決め用マーク上に順番に移動してくるよう、前記加工テーブルへの移動指令を出力する移動指示ステップと、
前記撮像部が前記位置決め用マーク上に移動してきた際に、前記撮像部に撮像指示を出力する撮像指示ステップと、
前記加工テーブルへの移動指令が出力されている間に、前記撮像部が撮像した前記位置決め用マークの画像に基づいて、前記位置決め用マークの位置を算出するマーク位置算ステップと、
算出された前記位置決め用マークの位置を用いて、前記基板の前記加工テーブルに対する位置ずれ量を算出する位置ずれ量算出ステップと、
を含むことを特徴とする基板位置検出方法。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104708158A (zh) * | 2015-02-13 | 2015-06-17 | 佛山市中科源自动化设备有限公司 | 一种电路板自动焊接方法 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2969373A4 (en) * | 2013-03-13 | 2016-11-16 | Applied Materials Inc | LASER DISPLAY PLATFORM FOR SOLAR CELLS |
JP6174906B2 (ja) * | 2013-05-23 | 2017-08-02 | 中村留精密工業株式会社 | 機械の自己診断及び機械精度の補正方法 |
DE102013217126B4 (de) | 2013-08-28 | 2015-09-03 | Trumpf Laser- Und Systemtechnik Gmbh | Verfahren zum Feststellen von Abweichungen einer Ist-Lage eines Laserbearbeitungskopfes von einer Soll-Lage, Laserbearbeitungsmaschine und Computerprogrammprodukt |
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WO2016088203A1 (ja) * | 2014-12-02 | 2016-06-09 | 三菱電機株式会社 | 変位センサ、変位検出装置及び変位検出方法 |
JP2017113788A (ja) * | 2015-12-24 | 2017-06-29 | 株式会社リコー | 光加工装置 |
TWI641933B (zh) * | 2016-01-15 | 2018-11-21 | 施教競 | Processing method of processing machine |
WO2018012199A1 (ja) * | 2016-07-14 | 2018-01-18 | 三菱電機株式会社 | 基板計測装置およびレーザ加工システム |
JP6919622B2 (ja) * | 2018-04-26 | 2021-08-18 | オムロン株式会社 | 制御システム、制御方法、および制御プログラム |
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WO2020090075A1 (ja) * | 2018-10-31 | 2020-05-07 | 株式会社ニコン | 加工システム、及び、加工方法 |
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JP7344047B2 (ja) * | 2019-08-22 | 2023-09-13 | 株式会社ジェーイーエル | 基板の位置合わせ方法 |
CN113059516A (zh) * | 2021-04-30 | 2021-07-02 | 湖州铭沅科技合伙企业(有限合伙) | 一种可旋转真空吸气移动工作平台装置 |
CN113298076B (zh) * | 2021-06-18 | 2022-08-26 | 蓝思智能机器人(长沙)有限公司 | 平面加工设备的校正数据采集方法、装置、设备及介质 |
CN113532316B (zh) * | 2021-07-05 | 2023-01-20 | 深圳市先地图像科技有限公司 | 一种能同时检测多块pcb板形位偏差的装置及检测方法 |
TWI789068B (zh) * | 2021-10-22 | 2023-01-01 | 健鼎科技股份有限公司 | 電路板的漲縮值的計算方法及多層電路板的孔洞成形方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007017763A (ja) * | 2005-07-08 | 2007-01-25 | Fujifilm Holdings Corp | 画像位置計測装置及び露光装置 |
JP2009239310A (ja) * | 2009-07-14 | 2009-10-15 | Integrated Solutions:Kk | 露光装置 |
JP2010085210A (ja) * | 2008-09-30 | 2010-04-15 | Toray Ind Inc | 欠陥検査装置 |
JP2010162559A (ja) * | 2009-01-13 | 2010-07-29 | Mitsubishi Electric Corp | レーザ加工方法および加工装置並びに被加工物 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5593877A (en) * | 1993-03-11 | 1997-01-14 | The Rockefeller University | Nucleic acid and recombinant production of vespid venom hyaluronidase |
JPH10323783A (ja) * | 1997-05-26 | 1998-12-08 | Japan Tobacco Inc | 帯状材の開孔装置 |
JP3855684B2 (ja) * | 2001-06-05 | 2006-12-13 | 松下電器産業株式会社 | レーザ加工装置およびレーザ加工方法 |
JP4348199B2 (ja) * | 2004-01-16 | 2009-10-21 | 日立ビアメカニクス株式会社 | レーザ加工方法およびレーザ加工装置 |
CN201076969Y (zh) * | 2007-09-28 | 2008-06-25 | 北京工业大学 | 紫外激光微加工精确定位系统 |
-
2010
- 2010-09-01 CN CN2010800687983A patent/CN103079746A/zh active Pending
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007017763A (ja) * | 2005-07-08 | 2007-01-25 | Fujifilm Holdings Corp | 画像位置計測装置及び露光装置 |
JP2010085210A (ja) * | 2008-09-30 | 2010-04-15 | Toray Ind Inc | 欠陥検査装置 |
JP2010162559A (ja) * | 2009-01-13 | 2010-07-29 | Mitsubishi Electric Corp | レーザ加工方法および加工装置並びに被加工物 |
JP2009239310A (ja) * | 2009-07-14 | 2009-10-15 | Integrated Solutions:Kk | 露光装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104708158A (zh) * | 2015-02-13 | 2015-06-17 | 佛山市中科源自动化设备有限公司 | 一种电路板自动焊接方法 |
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