WO2017056301A1 - Dispositif d'inspection - Google Patents

Dispositif d'inspection Download PDF

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Publication number
WO2017056301A1
WO2017056301A1 PCT/JP2015/077983 JP2015077983W WO2017056301A1 WO 2017056301 A1 WO2017056301 A1 WO 2017056301A1 JP 2015077983 W JP2015077983 W JP 2015077983W WO 2017056301 A1 WO2017056301 A1 WO 2017056301A1
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WO
WIPO (PCT)
Prior art keywords
component
pair
mover
electronic component
holding
Prior art date
Application number
PCT/JP2015/077983
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English (en)
Japanese (ja)
Inventor
利幸 澤田
Original Assignee
富士機械製造株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士機械製造株式会社 filed Critical 富士機械製造株式会社
Priority to PCT/JP2015/077983 priority Critical patent/WO2017056301A1/fr
Priority to JP2017542648A priority patent/JP6675410B2/ja
Publication of WO2017056301A1 publication Critical patent/WO2017056301A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Definitions

  • the present invention relates to an inspection apparatus for inspecting components mounted on a circuit board.
  • Patent Documents 2 and 3 describe an inspection apparatus that includes a probe and measures the electrical characteristics of a component by contacting the probe.
  • Patent Document 1 describes an inspection device that measures electrical characteristics by sandwiching a component placed on a holding base from both ends. In this inspection apparatus, air is supplied from the blower port portion 28 along the V groove of the holding table, and the measured components on the V groove are sent to the introduction port portion 7 ′. The defective product is discarded, and the non-defective product is used for mounting on the circuit board.
  • An object of the present invention is to reduce measurement errors in an inspection apparatus capable of automatically measuring electrical characteristics of parts.
  • An inspection apparatus includes a component mounting portion including a groove extending in a first direction, having a bottom portion extending in a first direction and a pair of inclined surfaces extending in the first direction and being spaced apart from each other upward. And a pair of measuring elements provided so as to be connectable to each of a pair of electrodes of the electronic component placed on the component placement portion from both ends in the first direction of the groove, and a pair of electronic components
  • the dimension in the second direction which is a direction perpendicular to the horizontal direction with respect to the first direction, of the bottom surface of the electronic component when the electrodes are arranged in the first direction is larger than the dimension in the second direction of the bottom part. Inspect even small electronic components.
  • the electronic component When inspecting an electronic component whose dimension in the second direction is smaller than the dimension in the second direction at the bottom of the component placement unit, the electronic component is placed on the component with the bottom surface in contact with the bottom of the component placement unit. Placed on the part. Therefore, the disturbance of the posture of the placed electronic component is suppressed by the frictional force between the bottom surface of the electronic component and the bottom portion of the component placing portion. Therefore, measurement errors are reduced in measuring the electrical characteristics of the electronic component.
  • the mounting machine shown in FIG. 1 mounts components on a circuit board, and includes an apparatus main body 2, a circuit board transport and holding device 4, a component supply device 6, a head moving device 8, and the like.
  • the circuit board transport and holding device 4 transports and holds the circuit board P (hereinafter abbreviated as “substrate P”) in a horizontal posture.
  • substrate P the circuit board P
  • the width direction is the y direction
  • the thickness direction of the substrate P is the z direction.
  • the y direction and the z direction are the front-rear direction and the vertical direction of the mounting machine, respectively. These x direction, y direction, and z direction are orthogonal to each other.
  • the component supply device 6 supplies electronic components (hereinafter abbreviated as components) s to be mounted on the board P, and includes a plurality of tape feeders 14 and the like.
  • the head moving device 8 holds the mounting head 16 and moves it in the x, y, and z directions.
  • the mounting head 16 has a suction nozzle 18 that sucks and holds the component s.
  • Reference numeral 20 denotes a camera.
  • the camera 20 captures the part s held by the suction nozzle 18, and based on the image captured by the camera 20, it is determined whether or not the part s is to be mounted on the circuit board P. Determined.
  • Reference numeral 22 denotes an inspection apparatus.
  • the inspection device 22 measures and inspects the electrical characteristics of the component s.
  • the electrical characteristics of the part s are measured, and whether or not the measured electrical characteristics match the information (electrical characteristics) on the part s included in the job information, that is, the part that is to be used for the next operation It is determined whether or not it matches the electrical characteristics provided by s.
  • the electrical characteristics of the component s include L (inductance), C (capacitance), R (resistance), Z ′ (impedance), and the like, and one or more of these are measured by the inspection device 22.
  • the inspection device 22 is provided in the main body of the circuit board conveyance holding device 4 through the trash box 26. Although the waste bin 26 and the inspection device 22 are connected by a waste passage 28, the component s whose electrical characteristics are measured is accommodated in the waste bin 26 through the waste passage 28.
  • the inspection device 22 is provided in the trash box 26 so that the height can be adjusted.
  • a base portion 30 is engaged with the trash box 26 so as to be movable up and down, and a fastening portion 31 (see FIGS. 3, 4, and 10) in which a main body 29 includes a bolt and a nut.
  • the base portion 30 and the main body 29 are integrally held so as to be movable up and down.
  • the inspection device 22 includes (i) the main body 29 and the base portion 30, (ii) a holding base 32 capable of holding the component s, and (iii) a stator 34 and a mover 36. (Iv) a mover moving device 41 for moving the mover 36 toward and away from the stator 34, and (vi) electricity.
  • An LCR detection unit 42 as a characteristic characteristic detection unit is included.
  • the component s can have electrodes at both ends and can be gripped by a pair of measuring elements 37. As the component s, for example, what is called a square chip is applicable.
  • the holding base 32 includes a component placement portion 44 and a placement portion holding body 46 that holds the component placement portion 44.
  • a groove 44c is formed on the upper surface of the component placement portion 44, and the component s is placed thereon.
  • the groove 44c includes inclined surfaces 441L and 441R on both sides in the x direction and a bottom portion 442 provided between the inclined surfaces 441L and 441R (see FIG. 11). Since the groove 44c is substantially V-shaped, the position of the component s is accurately determined.
  • the groove 44c is not completely V-shaped, but is substantially V-shaped. Therefore, in the following description, the groove 44c is referred to as a V-groove 44c.
  • the component mounting portion 44 can be made of a material that has conductivity and wear resistance and is difficult to oxidize.
  • the component placement unit 44 is electrically connected to the base unit 30 via a plurality of conductive members, but the component placement unit 44 is also grounded when the base unit 30 is grounded.
  • the component mounting portion 44 abuts on the mounting portion holding body 46 and is fixed by the fastening portion 47, and the mounting portion holding body 46 is attached to the main body 29 with a stopper 80 (see FIG. 3).
  • the main body 29 is fixed to the base portion 30 by the fastening portion 31.
  • the mounting part holding body 46, the stopper 80, the main body 29, the base part 30, the fastening parts 31, 47, etc. have electroconductivity. Therefore, the component mounting part 44 is grounded.
  • the component placement unit 44 is manufactured from a conductive material and is grounded, so that the charge of the component s placed on the component placement unit 44 can be eliminated. Moreover, since the component mounting part 44 is manufactured with the material which has abrasion resistance, abrasion of the component mounting part 44 can be suppressed and durability can be improved. Furthermore, the component mounting part 44 can be made difficult to rust by being manufactured from a material that is difficult to oxidize, that is, a material that can form a passive film that is a metal oxide film. Rust can be made difficult to adhere to the component s, and a decrease in measurement accuracy of the electrical characteristics of the component s can be suppressed. For example, the component mounting part 44 can be manufactured by an aluminum alloy or a stainless material.
  • the stator 34 and the movable element 36 have opposing surfaces 34f and 36f that face each other, and the electrodes of the component s are held by the pair of opposing surfaces 34f and 36f.
  • the stator 34 is fixed to the main body 29 via a stator holder 55.
  • the mover 36 is held by a mover holder 56 so as to be movable integrally, and can be moved toward and away from the stator 34.
  • the opposing surface 36f has a triangular cross section and is movable along the V groove 44c.
  • the shape of the facing surface 36f of the mover 36 is substantially the shape corresponding to the V-groove 44c, and the facing surface 36f of the mover 36, the facing surface 34f of the stator 34, and the V-groove 44c of the holding base 32 are Located at almost the same height. Therefore, regardless of the part s in the V groove 44c, the part s can be gripped by the pair of opposed surfaces 34f and 36f.
  • the mover 36 is a longitudinal member extending in the y direction (movement direction), and is held by the mover holding body 56 at the retracted end.
  • the rear portion of the front end portion including the facing surface 36f has a shape that does not have a portion protruding from the front end portion in the x direction.
  • the holding table 32 and the mover 36 can be moved relative to each other, and the holding table 32 can move forward of the facing surface 36f with the bottom of the V-groove 44 positioned below the mover 36. It is possible to move backward.
  • an electric circuit 58 including a pair of measuring elements 37 including a mover 36 and a stator 34, an LCR detector 42, a power supply device (not shown), and the like is formed. A current is supplied between the stator 34 and the mover 36, and the flowing current is detected.
  • the LCR detector 42 is not limited to a detector that detects L, C, and R, and can detect one or more physical quantities representing electrical characteristics such as L, C, R, and Z ′.
  • Reference numerals 58a and 58b in FIGS. 2 to 4 are connecting portions of the pair of measuring elements 37 to the electric circuit 58.
  • a cover unit 50 is attached to the holding table 32.
  • the cover part 50 includes a pair of cover plate parts 52 and 54 provided on both sides of the V-groove 44c so as to be separated from each other in the x direction.
  • the cover plate portions 52 and 54 are respectively provided on the stator 34 side of the holding base 32 and extend in the y direction and the z direction, that is, in the moving direction and the vertical direction of the holding base 32 and the mover 36.
  • the plate member has a bent shape.
  • the cover plate portion 52 has a groove shape in a plan view, and includes a bottom plate portion 52a and side plate portions 52b and 52c provided on both sides of the bottom plate portion 52a so as to be separated in the x direction.
  • the bottom plate portion 52a has a shape in which the lower portion is bent, has an L shape in a side view, and is attached to the side surface on the stator 34 side of the component placement portion 44 in the upper portion. Further, at the forward end position of the holding base 32, the lower portion of the bottom plate portion 52 is located above the stator holding body 55, and the side plate portion 52 b is located outside the stator 34 and above the stator holding body 55. The side plate portion 52c is located outside the side plate portion 52b and outside the stator holding body 55. The side plate portion 52 c has a larger vertical dimension than the side plate portion 52 b, and the lower end portion extends to the vicinity of the opening 29 a of the main body 29.
  • the cover plate portion 54 is attached to the placement portion holding body 46 on the opposite side of the cover plate portion 52 with respect to the V groove 44c.
  • the cover plate portion 54 is located outside the stator holder 55 at the forward end position of the holding base 32.
  • the cover plate portion 54 has a shape bent in the vertical direction, and a lower end portion extends to the vicinity of the opening 29 a of the main body 29. Further, the dimension in the y direction of the side plate portion 52c and the cover plate portion 54 is such that almost the entire space between the pair of facing surfaces 34f and 36f is at least once when the stator 34 and the mover 36 are separated from each other. Can be covered from the x direction.
  • the cover part 50 fulfill
  • an opening 60a of an air passage 60 facing the facing surface 36f of the mover 36 is formed on a member on the stator side (for example, an upper portion of the stator 34 or an upper portion of the stator 34 of the stator holder 55 or the main body 29). Is formed.
  • the air passage 60 includes an air ejection passage 60 s extending generally in the y direction, an internal passage 60 h formed in the main body 29, and the like.
  • the air ejection passage 60s extends while being inclined downward as it approaches the mover 36, and when the mover 36 is located away from the stator 34, the extension line k is formed on the opposing surface 36f of the mover 36. It extends above the portion R or reaches the portion R.
  • the portion R is a portion where the frequency of gripping the part s on the facing surface 36f of the mover 36 is high, and can be referred to as a gripping portion.
  • the air hits the portion where the extension line k of the facing surface 36f intersects from diagonally above.
  • Air cylinders 64 and 70 are connected to the air passage 60.
  • an ionizer 62 is provided in a portion of the air passage 60 on the downstream side of the air cylinders 64 and 70. The ionizer 62 generates corona discharge to ionize air, and the ionized air can be supplied to the facing surface 36f.
  • the holding table moving device 40 includes an air cylinder 64 as a drive source fixedly provided on the main body 29 or the base portion 30.
  • the mounting portion holder 46 is connected to the piston rod 66 (see FIG. 5) of the air cylinder 64.
  • the air cylinder 64 includes two air chambers 64a and 64b partitioned by a piston inside the cylinder housing, and electromagnetically is provided between the two air chambers 64a and 64b, the air source 68, the air passage 60, and a filter (atmosphere).
  • a valve device 69 is provided.
  • the electromagnetic valve device 69 may include one or more electromagnetic valves, for example, a direction switching valve and a variable throttle as shown in FIG.
  • the direction switching valve controls the moving direction of the mounting portion holding body 46, and the variable throttle controls the movement / stopping of the mounting portion holding body 46.
  • the electromagnetic valve device 69 By the electromagnetic valve device 69, the air chamber 64b is communicated with the air source 68 and the air chamber 64a is communicated with the air passage 60, whereby the holding base 32 is moved forward (moved in the direction of arrow F in FIG. 3).
  • the chamber 64b is opened to the atmosphere and the air chamber 64a communicates with the air source 68, the holding base 32 is moved backward (moved in the direction of arrow B in FIG. 3).
  • the mover moving device 41 includes an air cylinder 70 as a drive source fixedly provided on the main body 29.
  • the piston rod 71 of the air cylinder 70 is connected to a mover holder 56 that can move integrally with the mover.
  • the two air chambers 70 a and 70 b partitioned by a piston inside the housing of the air cylinder 70 are connected to an air source 68, an air passage 60, and a filter (atmosphere) via an electromagnetic valve device 72.
  • the electromagnetic valve device 72 includes one or more electromagnetic valves, and can include, for example, a direction switching valve, a variable throttle, and the like.
  • an air supply device 73 is configured by the air cylinders 64, 70, the air passage 60 (including the air ejection passage 60s), the opening 60a, the cover portion 50, the ionizer 62, and the like.
  • the air supply device 73 is also a mover supply unit and a drive source interlocking type supply unit.
  • the facing surface 36f corresponds to the supply target surface.
  • the structure of the electromagnetic valve devices 69 and 72 is not limited to that of the present embodiment. For example, one three-position valve can be included, or a plurality of on-off valves can be included. It is not essential to provide the ionizer 62.
  • a pair of guide rods 74 and 75 extending in the y direction are provided between the mover holding body 56 and the main body 29, and extended in the y direction between the holding base 32 and the mover holding body 56.
  • a pair of guide rods 76 and 77 are provided.
  • One end portions of the guide rods 74 and 75 are connected to the mover holding body 56, and the other end portions are slidably engaged with the main body 29.
  • the guide rods 76 and 77 are connected to the mounting portion holding body 46 at one end and are slidably engaged with the mover holding body 56.
  • a stopper 82 is provided on the stator side of the mover holder 56, and a stopper 80 is provided on a portion of the main body 29 that holds the stator holder 55.
  • the stopper 82 defines the approach limit between the mover holder 56 and the holder 32 (mounting part holder 46), and the stopper 80 is provided with the stator 34 (main body 29) and the holder 32 (placement). This defines the approach limit with the part holder 46).
  • the guide rods 74 to 77 are shared by the holding table moving device 40 and the mover moving device 41, and the stoppers 80 and 82 can be considered as components of the holding table moving device 40.
  • a permanent magnet 130 is provided below the component placement portion 44 of the holding table 32.
  • the permanent magnet 130 is provided substantially symmetrically in the x direction with respect to the center of the V groove 44c in the x direction. Since the permanent magnet 130 attracts the electrode of the part s by magnetic force, when the suction nozzle 18 that sucks the part s places the part s in the V groove 44c, the part s that should have been placed in the V groove 44c. Sticking to the suction nozzle 18 due to static electricity is reduced.
  • the permanent magnet 130 has a magnetic force larger than the static electricity that attaches the component s to the suction nozzle 18.
  • the magnetic force of the permanent magnet 130 has a magnitude that does not affect the inspection of the electrical characteristics of the component s by the inspection device 22. Further, as will be described later, the inspection device 22 relatively moves the component s and the V-groove 44c when measuring the electrical characteristics, but the magnetic force of the permanent magnet 130 is large enough to allow this relative movement. .
  • the mounting machine includes a control device 100.
  • the control device 100 includes a controller 102 mainly composed of a computer and a plurality of drive circuits 104.
  • the controller 102 includes an execution unit 110, a storage unit 112, an input / output unit 114, and the like.
  • the substrate transfer holding device 4, the component supply device 6, and the head moving device 8 each include a drive circuit 104.
  • the mover moving device 41 and the electromagnetic valve devices 69 and 72 of the holding table moving device 40 are connected.
  • an LCR detection unit 42 a display 116, a mover position sensor 118, a holding stand position sensor 120, a nozzle height sensor 122 for detecting the height of the nozzle 18, and the like are connected.
  • the storage unit 112 stores a plurality of programs and tables such as the LCR detection program represented by the flowchart of FIG. Further, time is measured by a timer 124 provided in the controller 102.
  • the substrate conveyance holding device 4, the component supply device 6, the head moving device 8, and the like are controlled by individual control devices. It can also be made.
  • the operation of the mounting machine will be described.
  • the tape feeder 14 is replaced, etc.
  • the setup is changed, the electrical characteristics of the parts s held by the tape feeder 14 are measured, and the tape It is inspected whether the feeder 14 (or part s) is appropriate. In addition, the inspection result is displayed on the display 116. If it is inappropriate, the tape feeder 14 is replaced.
  • the electrical characteristics of the component s are measured by executing the LCR measurement program represented by the flowchart of FIG. FIG. 7B shows the movements of the holding table 32 and the mover 36, and the states of the holding table position sensor 120 and the mover position sensor 118.
  • the inspection device 22 is always in the initial state shown in FIG.
  • the mover 36 is in the retreat end position, and the holding base 32 is in the advance end position, that is, the position in contact with the stopper 80. In this state, the holding table 32 is in a state of being grounded by internal conduction or the like.
  • the mover 36 does not exist above the V-groove 44c of the holding base 32, and the component s can be placed.
  • the cover 50 is located on both sides of the stator 34 (separated in the x direction). Both the mover position sensor 118 and the holding stand position sensor 120 are in the ON state.
  • step 1 it is determined whether or not a measurement command for the electrical characteristics of the component s has been issued.
  • an electrical characteristic measurement command is issued.
  • the mounting head 16 is moved in S2, for example, the component s held by the newly attached tape feeder 14 is picked up by the suction nozzle 18, and the V groove 44c of the holding table 32 is picked up. It is put on.
  • the component s is placed on the V-groove 44c by lowering the suction nozzle 18 and opening the component s.
  • the component s picked up by the suction nozzle 18 is placed on the V-groove 44c in a predetermined posture, specifically, with the electrodes on both ends facing each of the pair of measuring elements 37. Since the electrodes at both ends of the component s are attracted to the permanent magnet 130 provided below the V-groove 44c, the component s once placed on the V-groove 44c adheres to the suction nozzle 18 due to static electricity and is attracted to the suction nozzle.
  • the change in the mounting direction of the component s is reduced.
  • the placement direction of the part s is changed and the electrodes at both ends of the part s are placed in a direction not facing each of the pair of measuring elements 37, the electrodes at both ends of the part s and the pair of measuring elements 37 are electrically connected. Cannot connect to, and measurement error occurs.
  • the mounting direction of the component s is such that the electrodes at both ends of the component s face each of the pair of measuring elements 37, so that the occurrence of measurement errors is reduced.
  • the mover 36 is controlled by the solenoid valve device 72 in S3.
  • the mover is moved forward, and the mover position sensor 118 is switched from ON to OFF.
  • the opposing surface 36f at the tip of the mover 36 is advanced along the V groove 44c of the component mounting portion 44, and the component s is clamped by the opposing surface 36f and the opposing surface 34f of the stator 34 ⁇ FIG. b) ⁇ .
  • the stroke L1 see FIG.
  • the holding table 32 is moved backward by the control of the electromagnetic valve device 69, and the holding table position sensor 120 is switched from ON to OFF.
  • the holding table 32 is retracted until it comes into contact with the stopper 82 ⁇ FIG. 9 (c) ⁇ , and is held at that position.
  • the stroke of the holding table 32 is L2 (see FIG. 3).
  • L2 Ld-L1
  • the stroke L2 is set to be larger than the set value Lx (L2 ⁇ Lx), and the component placement unit 44 is separated from the component s by the set value Lx or more.
  • the component placement unit 44 is separated from the component s by the set value Lx or more (if the shortest distance between the component placement unit 44 and the component s is greater than the set value Lx), the component placement unit 44 is It is possible to reduce the measurement error of electrical characteristics caused by being located in the vicinity of the component s.
  • the set value Lx is a distance at which the component placement unit 44 hardly affects the measurement of the electrical characteristics of the component s, and is a value acquired in advance through experiments or the like.
  • This state is a measurement state. Note that the position of the holding table 32 is held by the control of the electromagnetic valve device 69 after the retraction time Ta, which is the time required for the holding table 32 to move backward by the stroke L2, elapses from the time when the holding table 32 starts to move backward.
  • the backward time Ta is measured by the timer 124.
  • the part s is opened by the suction nozzle 18 and is placed on the V-groove 44c.
  • Each of the parts s held by the tape feeder 14 is in a state of being charged by static electricity generated due to vibration accompanying transportation of the tape feeder 14, contact with an object, or the like.
  • the charged component s is made of a conductive material and is placed on the grounded component placing portion 44 to be discharged or discharged to discharge in the air.
  • the static elimination time is the time required to remove the static electricity of the capacity estimated to be possessed by the part s, and is obtained in advance by experiments or theoretically based on the size, characteristics, etc. of the part s. You can do it.
  • the determination in S5 is YES, and the electrical characteristics of the component s are measured in S6.
  • the measurement time which is the time required for measuring the electrical characteristics, elapses, S7 is executed.
  • the measurement time may be determined by the type of the part s or the like, or may be a fixed time. In any case, it is acquired and stored in advance.
  • the mover 36 is moved backward by the control of the electromagnetic valve device 72 in S7.
  • the mover position sensor 118 is turned on.
  • the holding base 32 is moved backward by the control of the electromagnetic valve device 69 ⁇ FIG. 9 (d) ⁇ .
  • the stroke until the holding base 32 comes into contact with the stopper 82 of the mover 36 at the retracted end position from the measurement state is L1. Therefore, it can be seen that the holding base 32 has come into contact with the stopper 82 after the backward movement time Tb, which is the time required for the backward movement of the stroke L1, has elapsed.
  • Tb the backward movement time
  • the holding base 32 is located behind the facing surface 36f of the mover 36, and does not exist below the pair of facing surfaces 34f, 36f.
  • This state is a discarding state.
  • the air chamber 64 b is communicated with the air source 68 in the air cylinder 64 and the air chamber 64 a is connected to the air passage 60 in S 9 under the control of the electromagnetic valve device 69. Communicated.
  • the holding table position sensor 120 is turned on.
  • the holding table 32 is located between the pair of facing surfaces 34f and 36f (the V groove 44 is located below the facing surfaces 34f and 36f), and the space above the V groove 44c is a space. Therefore, the component s can be placed.
  • This state is the initial state.
  • the facing surface 36f of the mover 36 When the facing surface 36f of the mover 36 is separated from the facing surface 34f of the stator 34, the component s held between them is released. Further, when the mover 36 is retracted, the air chamber 70a of the air cylinder 70 is communicated with the air passage 60, and the cover plate portions 52 and 54 are respectively in the x direction of the space between the pair of facing surfaces 34f and 36f. Located on both sides. Further, when the holding base 32 is moved to the rear of the facing surface 36f of the mover 36, it does not exist below between the pair of facing surfaces 34f, 36f, and the space between the pair of facing surfaces 34f, 36f is an opening. 29a, 30a and the waste passage 28 are communicated.
  • the air that has flowed out of the air chamber 70a is supplied from the opening 60a to the opposing surface 36f of the mover 36 obliquely from above.
  • the space between the opposing surfaces 34f, 36f is covered by the cover portion 50 from the x direction.
  • the air mainly hits the facing surface 36f and then flows downward along the facing surface 36f. Therefore, even if the component s does not fall from the facing surface 36f and adheres to the portion R, it can be dropped well. Further, since the air flows in a spiral shape inside the cover portion 50, even if the component s is attached to the facing surface 34f of the stator 34, the air can be dropped.
  • the component s dropped from the opposing surfaces 34f and 36f and placed on the holding table 32 can also be dropped by air.
  • the discarding state can be considered as a state in which the component s has been dropped well.
  • the component s dropped from the pair of opposed surfaces 34f and 36f is satisfactorily accommodated in the trash box 26 through the openings 29a and 30a and the disposal passage 28.
  • the cover portion 50 it is possible to prevent the dropped component s from scattering. Since the side plate portion 52c of the cover plate portion 52 and the lower end portion of the cover plate portion 54 extend to the vicinity of the opening 29a of the main body 29, the component s is satisfactorily accommodated in the trash box 26 from the opening 29a through the disposal passage 28. be able to.
  • the opposing surfaces 36f and 34f of the mover 36 and the stator 34 can be electrically neutralized, and the measurement accuracy of the electrical characteristics of the next component s can be improved. Can be improved.
  • the air chamber 64a communicates with the air ejection passage 60s when the holding table 32 moves forward (S9). Even when the state is shifted from the discarding state to the initial state, air can be supplied to the facing surface 36f of the movable element 36, so that the charge removal of the facing surface 36f of the movable element 36 can be performed satisfactorily.
  • the measured electrical characteristics are compared with the electrical characteristics included in the job information, and it is determined whether or not the part s is to be used for the work (JOB) to be performed. Is displayed on the display 116.
  • the measured value of the electrical characteristic of the part s is acquired, and in S22, the corresponding information is read from the job information of the next job.
  • these are compared to determine whether or not they match. Whether they match or not, the determination result is displayed on the display 116. If they do not match, an operation such as replacement with an appropriate tape feeder is performed.
  • the component mounting portion 44 is manufactured with a conductive material and is grounded. As a result, it is possible to satisfactorily remove the component s placed on the component placement unit 44 before measuring the electrical characteristics. On the other hand, when the component s is charged, it is difficult to measure the impedance of the component s. On the other hand, in this embodiment, since the charge removal of the component s is performed well, the impedance of the component s can be measured well. Further, the part s can be dropped into the disposal passage 28 in parallel with the retreat of the mover 36. Compared to the case where the retreat of the mover and the delivery of the part s are performed in separate steps, The time required for measuring the electrical characteristics can be shortened.
  • the electrodes at both ends of the component s are attracted to the V-groove 44c by the magnetic force of the permanent magnet 130, disturbance of the posture of the component due to the component s sticking to the suction nozzle 18 due to static electricity is reduced. Therefore, the component s is held in such a direction that the electrodes at both ends of the component s face each of the pair of measuring elements 37.
  • the component mounting portion 44 corresponds to the component mounting portion
  • the permanent magnet 130 corresponds to the attracting portion
  • the pair of measuring elements 37 corresponds to a plurality of measuring elements.
  • the movement control device and the relative movement control device are configured by the portion for storing S4, 7, and 8 of the LCR measurement program of the controller 102, the portion for execution, the timer 124, the mover position sensor 118, the holding stand position sensor 120, and the like.
  • the part for storing S4, the part for executing, etc. constitute the control unit for measurement
  • the part for storing S8, the part for executing, etc. constitute the controller for discarding
  • the part for storing S9 execute
  • the preparation control unit is configured by the parts to be performed.
  • the movement control device is also a holding table movement control device and a relative movement control unit.
  • the air cylinder 70 corresponds to a mover cylinder
  • the air cylinder 64 corresponds to a holding table cylinder.
  • the air supply device 73 is also a mover supply unit and a drive source interlocking type supply unit. Furthermore, an electrical characteristic acquisition apparatus is comprised by a pair of measuring element 37, the electric circuit 58 containing the LCR detection part 42, the part which memorize
  • both of a pair of measuring elements can be moved, and a holding stand can also be fixed to a main body. Even in such a case, the pair of measuring elements grips the component s placed on the holding table, and the pair of measuring elements are moved, so that the holding table can be separated from the component s by a set value or more. . Further, the holding table can be moved in the vertical direction. Even in this case, the holding base can be separated from the component s by a set value or more in a state where the component s is clamped by the pair of measuring elements. Further, the air ejection passage may be provided in the side portion of the main body 29 of the inspection device 22 in a state having an opening that generally opens in the x direction.
  • one of the cover plate portions 52 and 54 can be eliminated (for example, the cover plate portion 54 can be eliminated), and an air ejection passage having an opening in the x direction can be provided on the missing side.
  • the air is supplied toward the cover plate portion 52 along the opposing surfaces 34f and 36f (surfaces extending in the xz direction), thereby adhering to the pair of opposing surfaces 34f and 36f. It is possible to drop the parts s.
  • the holding base 32 can be retracted (for example, simultaneously retracted) as the mover 36 is retracted.
  • the state in which the holding table 32 and the mover 36 are retracted can be set as a discarding state.
  • the mover position sensor 118 and the holding stand position sensor 120 are not essential.
  • the electromagnetic valve devices 69 and 72 can be controlled by measurement by the timer 124.
  • an air supply device is not essential.
  • an electromagnet may be used instead of a permanent magnet.
  • an electromagnet or negative pressure is used as the drawing portion, when the suction nozzle 18 places the component s in the V-groove 44c, the magnetic force or negative pressure is turned on, and after the clamping of the component s by the pair of measuring elements 37, In the process, the pulling force may be changed by turning off the magnetic force or the negative pressure or generating a weaker force than when the component s is placed on the V groove 44c.
  • the inspection device 22 measures the electrical characteristics of the parts s having various dimensions.
  • the component s having a relatively small size and a relatively light weight is particularly likely to be disturbed by the posture of the component s on the component placement unit 44 due to sticking to the suction nozzle 18 due to static electricity or other factors.
  • the dimension in the x direction of the bottom 442 of the inspection device 22 is the x of the specific part s when the pair of electrodes of the specific part s are arranged in the y direction among the measurement target parts s of various dimensions. It is larger than the dimension in the direction.
  • the dimension in the x direction of the bottom portion 442 of the inspection device 22 is smaller than the dimension in the x direction of the specific component s when the pair of electrodes of the specific component s are arranged in the x direction.
  • Specified parts s are parts that are particularly remarkably disturbed in posture due to their small dimensions and light weight. For example, the part s having the smallest dimension among the parts s to be measured.
  • the frictional force between the bottom surface and the bottom portion 442 of the specific component s can suppress the disorder of the posture of the specific component s, in particular, the rotation of the pair of electrodes of the specific component s in the direction aligned in the x direction. Therefore, the occurrence of measurement errors in the electrical characteristics of the component s is reduced.
  • the effect of reducing the disorder of the posture of the specific part s by the frictional force between the bottom surface and the bottom part 442 of the specific part s is that at least the dimension in the x direction of the bottom part 442 is a pair of electrodes of the specific part s. It suffices if it is larger than the dimension in the x direction of the specific component s when the are aligned in the y direction. It is not essential that the dimension in the x direction of the bottom portion 442 is smaller than the dimension in the x direction of the specific part s when the pair of electrodes of the specific part s are arranged in the x direction.
  • the suction is performed.
  • the component s held by the nozzle 18 is placed in the V-groove 44c, the component s has a size that cannot be placed on the bottom portion 442.
  • the pair of inclined surfaces 441L and 441R that are separated from each other toward the upper side can place the component s having a size that cannot be placed on the bottom portion 442 in the V-groove 44c.
  • the component s has a posture as shown in FIG. When the component s is in the posture as shown in FIG.
  • the component s is placed with the surface constituting the component s inclined with respect to the horizontal plane, but the component s and the inclined surface 441L are in contact with each other.
  • the posture of FIG. 12 is easily maintained due to the large area and the relatively heavy weight of the component s.
  • the contact area between the part s and the V-groove 44c is small, but the weight of the part s is relatively heavy, so that the posture of FIG. 13 can be easily maintained.
  • the suction nozzle 18 places the component s in the V groove 44c. Therefore, the possibility that the pair of electrodes of the component s rotate in the direction aligned in the x direction is less than that of the specific component s.
  • the component placement portion 44 corresponds to the component placement portion
  • the V groove 44c corresponds to the groove
  • the y direction is Corresponding to the first direction
  • the bottom 442 corresponds to the bottom
  • the inclined surfaces 441L and 441R correspond to a pair of inclined surfaces
  • the pair of measuring elements 37 corresponds to a pair of measuring elements.
  • the x direction corresponds to the second direction.
  • the effect of reducing the occurrence of measurement errors by providing a bottom portion on the component placement portion can be achieved without a drawing portion below the component placement portion.
  • the effect of reducing the occurrence of measurement errors is further improved by providing a drawing portion below the component placement portion.
  • An inspection device included in a mounting machine that picks up a component supplied by a component supply device and mounts the component on a circuit board, A holding table capable of holding parts; A pair of measuring elements that can be approached and separated from each other, and that can measure the electrical characteristics of the part with the part interposed therebetween, A holding table moving device for moving the holding table; A holding table movement control device that controls the holding table movement device, and the holding table movement control device is in a clamped state where the pair of measuring elements hold the parts held by the holding table, An inspection apparatus comprising: a measurement control unit that sets a measurement state in which the holding table is separated from the component by a set value or more so that the electrical characteristics of the component can be measured.
  • the holding table may be movable in a direction parallel to the approaching / separating direction of the pair of measuring elements, or may be movable in the intersecting direction.
  • the set value can be a distance at which the influence of the holding table is difficult to measure the electrical characteristics of the component.
  • the discarding control unit sets the holding table to a discarding state in which the holding table does not exist below between the pair of opposed surfaces separated from each other.
  • the inspection apparatus according to (1) or (2).
  • the inspection apparatus according to item (3) including a preparation control unit for setting the state.
  • the mounting device includes a disposal passage connected to the inspection device, and the main body of the inspection device has an opening that can communicate with the disposal passage. Inspection device described in one.
  • the position and size of the opening can be determined so as to be in an open state below at least between the pair of opposed surfaces in the discarded state.
  • (6) Electrical characteristic acquisition in which the inspection apparatus supplies current between the pair of measuring elements and detects the current flowing between the pair of measuring elements to acquire the electrical characteristics of the component A delay type measurement that starts measurement of the electrical characteristics of the component when a set time has elapsed since the component was placed on the holding table.
  • the inspection apparatus according to any one of (1) to (5), including a section.
  • the set time can be, for example, a static elimination time that is a time required for static elimination of a component.
  • the static elimination time may be a time determined by a part or a predetermined time regardless of the part.
  • the pair of measuring elements includes a stator fixed to the main body and a movable element movable relative to the stator
  • the inspection apparatus includes a mover moving device that moves the mover relative to the stator, and a mover movement control unit that controls the mover moving device to move the pair of measuring elements closer to or away from each other.
  • the inspection apparatus according to any one of items (1) to (6).
  • the inspection apparatus includes a coupling mechanism that couples the mover and the holding base so as to be movable relative to each other.
  • the mover may have a longitudinal shape extending in parallel with the moving direction of the mover.
  • the holding base when the holding base is located in front of the tip of the mover, it may be located behind.
  • the holding table has a V-groove which is a groove having a V-shaped cross section, and a cross section of at least one tip of the pair of measuring elements has a triangular shape corresponding to the V-groove.
  • the inspection apparatus according to any one of items (1) to (8).
  • An inspection device included in a mounting machine that picks up a component supplied by a component supply device and mounts the component on a circuit board, A holding table capable of holding parts; A pair of measuring elements that can be approached and separated from each other, and can measure the electrical characteristics of the parts with the parts interposed therebetween; A relative movement device for moving the pair of measuring elements and the holding table relative to each other; A relative movement control device that controls the relative movement device, and the relative movement control device is configured such that the pair of measuring elements grips the component held by the holding base, and the component and the component
  • An inspection apparatus comprising: a measurement control unit that sets a measurement state in which the electrical characteristics of the component can be measured by separating the holding table by a set value or more.
  • Relative movement device can be (a) a device that fixes a holding base and moves a pair of measuring elements, or (b) one of a pair of measuring elements that is fixed, and moves the other of the pair of measuring elements and the holding table. It can be used as a device to be used.
  • the pair of measuring elements are moved relative to the holding table, and the parts and the holding table are set. This corresponds to the case where the distance is more than the value.
  • the disposal step of separating the pair of measuring elements from each other and retracting the holding table from below between the opposing surfaces of the pair of measuring elements The inspection method according to item (11), further including a preparatory step in which the holding base is moved downward between the opposing surfaces of the pair of measuring elements so as to hold the component in an initial state.
  • the pair of measuring elements may be separated and the holding table retracted in order or in parallel.
  • An inspection device included in a mounting machine that picks up a component supplied by a component supply device and mounts the component on a circuit board, A holding base that has conductivity and holds parts;
  • An inspection apparatus comprising: an electrical property acquisition device that grips the component held on the holding table and acquires an electrical property of the component in a state where the component is separated from the holding table.
  • the inspection device described in this section can employ the technical feature described in any one of the items (1) to (12).
  • the pair of measuring elements When the pair of measuring elements are brought close to each other, the pair of opposed surfaces sandwich the component, measure the electrical characteristics of the component, and separated from each other, whereby the pair of opposed surfaces
  • Items (1) to (13) include an air supply device that supplies air to a supply target surface that is at least one of the pair of opposed surfaces when the pair of measuring elements are separated from each other.
  • the inspection device according to any one of the items).
  • the case where the pair of measuring elements are separated corresponds to a part or the whole process during the separation, a separation start time, a separation end time, and the like while they are separated from each other.
  • the air supply device includes an ionizer that ionizes the air, and supplies the ionized air to the supply target surface.
  • the air supply device includes an air passage having an opening facing the supply target surface. When the supply target surface is one of a pair of opposing surfaces, one opening that faces the one supply target surface is provided, and when the supply target surface is both of the pair of opposing surfaces, Two openings are provided opposite to each other.
  • the air passage includes an air ejection passage that is inclined in a downward direction as it approaches the supply target surface.
  • an inclination angle of the air ejection passage is an angle at which the air hits a portion of the supply target surface that grips the component.
  • the pair of measuring elements includes a stator fixed to the main body and a movable element capable of approaching and separating from the stator, Item (14) to (14), wherein the air supply device includes a mover supply unit that supplies the air to the opposed surface of the mover that is the supply target surface when the mover is separated from the stator.
  • the inspection device includes a mover moving device that includes a mover cylinder and moves the mover toward and away from the stator by the operation of the mover cylinder;
  • the air supply device includes a drive source interlocking type supply unit that supplies air that is allowed to flow out of the cylinder for the mover to the opposing surface of the mover as the mover is separated from the stator (19).
  • Inspection device according to item.
  • the inspection apparatus according to any one of (1) to (20), wherein the inspection apparatus includes a cover portion that covers a space between the pair of facing surfaces separated from each other. The cover portion covers most of the space between the pair of facing surfaces, and does not necessarily cover the entire space between the pair of facing surfaces, and may cover the surface with a slight gap. Good.
  • the cover is attached to the holding table, and covers most of the pair of opposing surfaces from the side with the holding table in the retracted end position. Inspection equipment.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

L'invention concerne un dispositif d'inspection qui réduit une erreur de mesure. Le dispositif d'inspection comprend : une unité de montage de composant qui comprend une rainure s'étendant dans une première direction et comprenant une partie inférieure qui s'étend dans la première direction et une paire de surfaces inclinées qui s'étendent dans la première direction et se séparent l'une de l'autre vers le haut depuis la partie inférieure ; et une paire de sondes qui sont disposées de manière à permettre le raccordement, depuis les deux extrémités de la rainure dans la première direction, à chacune d'une paire d'électrodes d'un composant électronique monté sur l'unité de montage du composant. Le dispositif d'inspection inspecte le composant électronique qui, lorsque la paire d'électrodes de ces derniers sont alignées dans la première direction, a une dimension plus petite sur la surface inférieure dans une seconde direction que la dimension de la partie inférieure mentionnée ci-dessus de l'unité de montage du composant dans la seconde direction, la seconde direction étant la direction orthogonale dans la direction horizontale par rapport à la première direction. Lors de l'inspection d'un composant électronique qui a une dimension plus petite dans la seconde direction que la dimension dans la seconde direction de la partie inférieure de l'unité de montage du composant, le composant électronique est disposé dans l'unité de montage du composant dans un état dans lequel la surface inférieure du composant électronique est en contact avec la partie inférieure de l'unité de montage du composant. Pour cette raison, une force de frottement entre la surface inférieure du composant électronique et la partie inférieure de l'unité de montage du composant empêche la perturbation de l'attitude du composant électronique monté. Par conséquent, une erreur de mesure est réduite dans la mesure de propriétés électriques du composant électronique.
PCT/JP2015/077983 2015-10-01 2015-10-01 Dispositif d'inspection WO2017056301A1 (fr)

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PCT/JP2015/077983 WO2017056301A1 (fr) 2015-10-01 2015-10-01 Dispositif d'inspection
JP2017542648A JP6675410B2 (ja) 2015-10-01 2015-10-01 検査装置

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JPS6383667U (fr) * 1986-11-20 1988-06-01
JPH0495778A (ja) * 1990-08-06 1992-03-27 Matsushita Electric Ind Co Ltd チップ型電子部品の挟持装置
JPH06275989A (ja) * 1993-03-24 1994-09-30 Murata Mfg Co Ltd チップ部品測定用治具
JPH07325108A (ja) * 1994-05-31 1995-12-12 Kyocera Corp 電子部品の測定装置
JP2015129702A (ja) * 2014-01-08 2015-07-16 三菱電機株式会社 半導体試験治具、試験方法

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JPH0634708A (ja) * 1992-07-17 1994-02-10 Fujitsu Ltd Ｓｏｐ型半導体部品の試験装置
DE102007015283A1 (de) * 2007-03-29 2008-10-02 Qimonda Ag Testvorrichtung für Halbleiterbauelemente
KR100960646B1 (ko) * 2008-06-20 2010-06-07 (주)테크윙 테스트핸들러용 적재요소
KR20110051081A (ko) * 2009-11-09 2011-05-17 미래산업 주식회사 발광소자 접속장치 및 발광소자 테스트 핸들러
JP6109032B2 (ja) * 2013-10-02 2017-04-05 三菱電機株式会社 半導体試験治具およびその搬送治具、ならびにそれらを用いた異物除去方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6383667U (fr) * 1986-11-20 1988-06-01
JPH0495778A (ja) * 1990-08-06 1992-03-27 Matsushita Electric Ind Co Ltd チップ型電子部品の挟持装置
JPH06275989A (ja) * 1993-03-24 1994-09-30 Murata Mfg Co Ltd チップ部品測定用治具
JPH07325108A (ja) * 1994-05-31 1995-12-12 Kyocera Corp 電子部品の測定装置
JP2015129702A (ja) * 2014-01-08 2015-07-16 三菱電機株式会社 半導体試験治具、試験方法

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