WO2020059061A1 - 超音波振動接合装置 - Google Patents
超音波振動接合装置 Download PDFInfo
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- WO2020059061A1 WO2020059061A1 PCT/JP2018/034713 JP2018034713W WO2020059061A1 WO 2020059061 A1 WO2020059061 A1 WO 2020059061A1 JP 2018034713 W JP2018034713 W JP 2018034713W WO 2020059061 A1 WO2020059061 A1 WO 2020059061A1
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- Prior art keywords
- ultrasonic
- bonding
- lowering
- ultrasonic vibration
- ultrasonic bonding
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- 238000003466 welding Methods 0.000 title abstract description 8
- 238000003825 pressing Methods 0.000 claims description 119
- 230000007246 mechanism Effects 0.000 claims description 44
- 239000000758 substrate Substances 0.000 claims description 20
- 239000011521 glass Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 9
- 230000003028 elevating effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 241000309551 Arthraxon hispidus Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67138—Apparatus for wiring semiconductor or solid state device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
- B29C66/7465—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/60—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation
- H01L21/607—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation involving the application of mechanical vibrations, e.g. ultrasonic vibrations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/02013—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising output lead wires elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/922—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9221—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force, the mechanical power or the displacement of the joining tools by measuring the pressure, the force or the mechanical power
Definitions
- the present invention relates to a pressure-type ultrasonic vibration bonding apparatus, for example, an ultrasonic vibration bonding apparatus applied when ultrasonically bonding a conductive electrode on a thin substrate.
- FIG. 9 is an explanatory view schematically showing the structure of a conventional pressurized ultrasonic vibration bonding apparatus.
- FIG. 9 shows an XYZ orthogonal coordinate system.
- a lifting / lowering / pressing servomotor 82 is fixed to a side surface having an XZ plane.
- the upper end (+ Z direction) of the screw shaft 21 is attached to a lifting / lowering / pressing servomotor 82, and the lower end of the screw shaft 21 is connected to a lifting / lowering / pressing slider 83 via a nut (not shown). It is attached to the slider 83.
- the ultrasonic bonding head 86 is attached to the lower part of the lifting / lowering slider 83.
- the ultrasonic bonding head portion 86 is formed to extend in the head forming direction (Y direction), and has an ultrasonic bonding portion 16a at a distal end portion.
- the ultrasonic bonding head unit 86 performs an ultrasonic vibration operation of applying ultrasonic vibration from the ultrasonic bonding unit 16a.
- the lifting / lowering / pressing slider 83 has a pressure sensor 87 at the top.
- a pressure sensor 87 for example, a strain gauge can be considered.
- the pressure sensor 87 can detect, as a measured pressure value, a pressing force with which the ultrasonic bonding head unit 86 presses a bonding target such as an electrode wire arranged on the substrate.
- the lifting / lowering / pressing servo motor 82 operates with the ultrasonic bonding head unit 86 as a moving object (elevating operation + (Lowering operation) and pressurizing operation.
- the lifting / lowering / pressing servo motor 82 performs the raising / lowering operation with respect to the ultrasonic bonding head portion 86, and the ultrasonic bonding portion 16a During the contact period of the joining portion in contact with the joining object, the lifting / lowering / pressing servomotor 82 performs a pressing operation on the ultrasonic joining head 86.
- the lowering operation and the raising operation of the lifting / lowering servomotor 82 and the ultrasonic vibration operation of the ultrasonic bonding head unit 86 are executed under the control of a control unit (not shown).
- Step 1 The ultrasonic bonding section 16a of the ultrasonic bonding head section 86 is disposed so as to be located above the application section of the bonding target.
- Step 2 The screw shaft 21 is rotated in the first rotation direction by the driving of the servo motor 82 for lifting / lowering, and the lowering operation for moving the slider 83 for lifting / lowering / pressing and the head unit 86 for ultrasonic bonding downward is executed. .
- Step 3 When the pressure sensor 87 detects a bonding part contact state where the lower end of the ultrasonic bonding part 16a of the ultrasonic bonding head part 86 contacts the application part of the bonding target, the ultrasonic bonding head part The driving contents of the lifting / lowering servomotor 82 are controlled so that the pressing pressure by 86 becomes a desired pressure value.
- Step 4 When the pressure sensor 87 recognizes that the pressing pressure has a desired pressure value, the ultrasonic bonding head 86 is caused to execute an ultrasonic vibration operation.
- step 3 when the measured pressure value detected by the pressure sensor 87 rises from “0”, the above-mentioned joint contact state can be detected.
- step 4 when the measured pressure value detected by the pressure sensor 87 indicates a desired pressure value, it can be recognized that the pressing pressure has reached the desired pressure value.
- the ultrasonic bonding portion 16a of the head portion 86 for ultrasonic bonding presses the object to be bonded with a pressing pressure.
- the conventional ultrasonic vibration bonding apparatus includes a lifting operation (elevating operation and a descending operation) of the ultrasonic bonding head 86 and a pressing operation of applying a pressing force to the ultrasonic bonding head 86.
- a lifting operation Elevating operation and a descending operation
- a pressing operation of applying a pressing force to the ultrasonic bonding head 86.
- the drive control of the lifting / lowering / pressing servomotor 82 became relatively difficult. More specifically, the process of detecting the presence or absence of the above-mentioned joint contact state using the pressure sensor 87 (step 3), and the process of detecting that the pressing pressure has reached a desired pressure value (step 4) )Is required. As described above, the conventional ultrasonic vibration bonding apparatus has a problem that the drive control of the lifting / lowering / pressing servo motor 82 is difficult because the two types of detection processing using the pressure sensor 87 are performed.
- An object of the present invention is to provide a structure of an ultrasonic vibration bonding apparatus capable of solving the above problems and relatively easily controlling a descending operation and a pressing operation in an ultrasonic bonding head. With the goal.
- An ultrasonic vibration bonding apparatus includes a table on which an object to be bonded is placed, an ultrasonic bonding head for performing an ultrasonic vibration operation of applying ultrasonic vibration from an ultrasonic bonding section, and the ultrasonic bonding.
- a pressurizing mechanism connected to the head unit for performing a pressing operation of pressing the ultrasonic bonding head unit toward the table side, and the ultrasonic bonding head unit and the pressing mechanism collectively.
- a lowering mechanism for performing a lowering operation of lowering and lowering, an ultrasonic vibration operation by the ultrasonic bonding head unit, a pressing operation by the pressing mechanism, and a control operation of controlling the lowering operation by the lowering mechanism.
- the apparatus further includes a control unit that executes the control.
- the ultrasonic vibration bonding apparatus includes a pressing mechanism that performs a pressing operation of applying a pressing force to the ultrasonic bonding head, and lowers the ultrasonic bonding head. Since the apparatus has the lowering mechanism for performing the lowering operation to perform the lowering operation, the lowering operation and the pressurizing operation for the ultrasonic bonding head can be individually performed.
- the ultrasonic vibration bonding apparatus of the present invention can perform the ultrasonic bonding process on the bonding target object by relatively easily performing the lowering operation and the pressing operation under the control of the control unit.
- the pressurizing mechanism can set the pressurizing pressure with high accuracy without providing a pressure sensor for measuring the pressurizing pressure.
- FIG. 1 is an explanatory diagram schematically showing a structure of an ultrasonic vibration bonding device according to a first embodiment of the present invention.
- FIG. 2 is an explanatory diagram schematically illustrating a part of the structure of the ultrasonic vibration bonding apparatus according to the first embodiment.
- FIG. 3 is a block diagram schematically illustrating a control system of the ultrasonic vibration bonding apparatus according to the first embodiment.
- FIG. 2 is an explanatory view (No. 1) schematically showing an internal state of the air cylinder shown in FIG. 1. It is explanatory drawing (the 2) which shows the internal state of the air cylinder shown in FIG. 1 typically.
- FIG. 4 is an explanatory diagram schematically showing a structure of an ultrasonic vibration bonding apparatus according to a second embodiment of the present invention.
- FIG. 1 is an explanatory diagram schematically showing a structure of an ultrasonic vibration bonding apparatus according to a second embodiment of the present invention.
- FIG. 9 is a block diagram schematically illustrating a control system of the ultrasonic vibration bonding apparatus according to the second embodiment. It is explanatory drawing which shows the specific structure of a joining object. It is explanatory drawing which shows typically the structure of the conventional pressure type ultrasonic vibration joining apparatus. It is explanatory drawing which shows typically the structure of the conventional pressure type ultrasonic vibration joining apparatus which has three ultrasonic joining head parts.
- FIG. 1 is an explanatory view schematically showing a structure of an ultrasonic vibration bonding apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is an explanatory diagram schematically illustrating a part of the structure of the ultrasonic vibration bonding apparatus according to the first embodiment. 1 and 2 each show an XYZ orthogonal coordinate system.
- FIG. 1 corresponds to a front view as viewed from the XZ plane
- FIG. 2 corresponds to a side view as viewed from the YZ plane.
- an elevation servomotor 2 is fixed to a side surface having an XZ plane.
- the upper end (+ Z direction) of the screw shaft 21 is attached to the lifting servomotor 2, and the lower end of the screw shaft 21 is connected to the lifting slider 3 via a nut (not shown).
- the lifting servomotor 2 functions as a lifting mechanism that combines the lowering mechanism that performs the above-described lowering operation and the raising mechanism that performs the above-described raising operation.
- the air cylinder 4 is directly attached to the side of the lifting slider 3 having the XZ plane.
- the pressurizing slider 5 is connected to the tip of the piston rod 23 of the air cylinder 4. Further, the air cylinder 4 has a position detecting unit 7 described later in detail.
- the ultrasonic bonding head 6 is attached to a region below the pressing slider 5.
- the ultrasonic bonding head 6 includes an ultrasonic horn 16 and an ultrasonic vibrator 17 as main components, and the tip of the ultrasonic horn 16 is an ultrasonic bonding portion 16a.
- the ultrasonic bonding head 6 is formed so as to extend in the head forming direction (Y direction) in the order of the ultrasonic vibrator 17 and the ultrasonic horn 16, and has an ultrasonic bonding portion 16 a at the tip of the ultrasonic horn 16. doing.
- the ultrasonic bonding head 6 generates the ultrasonic vibration UV on the ultrasonic vibrator 17 and transmits the ultrasonic vibration UV to the ultrasonic bonding section 16 a via the ultrasonic horn 16, thereby forming the ultrasonic bonding section. From 16a, an ultrasonic vibration operation of applying ultrasonic vibration to the application section of the object to be joined is performed.
- a glass substrate 31 placed on a table 30 and a linear electrode 33 arranged on the upper surface of the glass substrate 31 can be considered.
- a predetermined portion on the upper surface of the electrode 33 serves as an application portion, and the ultrasonic bonding operation of the head 33 for ultrasonic bonding allows the application portion of the electrode 33 to perform ultrasonic bonding between the electrode 33 and the glass substrate 31.
- the glass substrate 31 is used as a substrate for a solar cell panel or the like.
- FIG. 3 is a block diagram schematically illustrating a control system of the ultrasonic vibration bonding apparatus according to the first embodiment.
- the ultrasonic vibration bonding apparatus according to the first embodiment further includes a control unit 15.
- the control unit 15 performs a control operation for controlling the driving of the elevation servomotor 2, the air cylinder 4, the ultrasonic vibrator 17 in the ultrasonic bonding head unit 6, and the drive unit 19.
- the driving unit 19 performs a moving process of moving the one-head traveling frame 1 in the horizontal direction, and the ultrasonic vibrator 17 applies ultrasonic vibration UV to the ultrasonic bonding unit 16 a via the ultrasonic horn 16. Perform a vibration action.
- the control unit 15 can control the pressing force F1 in the ⁇ Z direction by the lifting servomotor 2 by controlling the driving of the lifting servomotor 2, and control the air cylinder 4 to control the ⁇ Z pressure.
- the pressing force F2 in the direction can be controlled. At this time, the pressing forces F1 and F2 satisfy the relationship of “F1> F2”.
- the ultrasonic bonding head 6 is connected to the lifting slider 3 via the pressing slider 5, the piston rod 23, and the air cylinder 4. For this reason, the pressing force F1 in the ⁇ Z direction generated at the time of the descending operation performed by driving the elevation servomotor 2 becomes the descending pressing force in the descending operation for the ultrasonic bonding head unit 6 as an operation target.
- the ultrasonic bonding head 6 is connected to the air cylinder 4 via the pressing slider 5 and the piston rod 23. Therefore, the pressing force F2 in the ⁇ Z direction transmitted to the piston rod 23 of the air cylinder 4 is the pressing force applied to the ultrasonic bonding head 6 toward the table 30. As described above, the pressing force is applied from the piston rod 23 of the air cylinder 4 to the ultrasonic bonding head 6.
- the control unit 15 can control the moving process of the one-head traveling frame 1 in the horizontal direction by controlling the driving unit 19.
- control unit 15 can control the ultrasonic vibrator 17 to control the ultrasonic vibration operation of the ultrasonic bonding head unit 6.
- the ultrasonic vibration bonding apparatus can execute an ultrasonic bonding process including the following steps S1 to S4 under the control of the control unit 15. That is, the control unit 15 performs a control operation including steps S1 to S4.
- Step S1 The ultrasonic bonding section 16a of the ultrasonic bonding head section 6 is disposed so as to be located above the application section of the bonding target.
- Step S2 The air cylinder 4 is caused to execute the pressurizing operation with the pressing force F2.
- Step S3 The screw shaft 21 is rotated in the first rotation direction by the driving of the servomotor 2 for lifting and lowering, and the slider 3 for lifting and lowering, the air cylinder 4, the slider 5 for pressing, and the head unit 6 for ultrasonic bonding are moved downward. Execute the descending operation. The descending operation is executed with the pressing force F1.
- the pressing force F1 and the pressing force F2 are set in advance, and during the execution of the ultrasonic bonding process, the pressing force F1 and the pressing force F2 satisfy “F1> F2”, and each has a constant pressure value. Is controlled so that
- Step S4 When the position detecting section 7 detects a joint contact state in which the lower end of the ultrasonic joining section 16a of the ultrasonic joining head section 6 comes into contact with the application section of the joining object, the ultrasonic joining is performed.
- the head unit 6 performs an ultrasonic vibration operation.
- step S4 the control unit 15 causes the ultrasonic bonding head unit 6 to execute the ultrasonic vibration process with the recognition of the above-described bonding part contact state as a trigger.
- FIGS. 4 and 5 are explanatory views schematically showing the internal state of the air cylinder 4.
- FIG. FIG. 4 shows the situation during the non-contact period of the joint
- FIG. 5 shows the situation after the contact state of the joint. 4 and 5 each show an XYZ orthogonal coordinate system.
- the air cylinder 4 is in a state where the pressing operation of the pressing force F2 by the air cylinder 4 itself is possible while being lowered by the pressing force F1 by the lifting servomotor 2. ing. At this time, the position of the piston 25 is fixed at a predetermined position below the air cylinder 4 because the ultrasonic bonding portion 16a is not in contact with the object to be connected.
- the period during which the position detector 7 provided on the side surface of the air cylinder 4 detects that the piston 25 is at the predetermined position is the non-contact period of the joint.
- step S4 the ultrasonic vibration bonding apparatus according to the first embodiment executes the ultrasonic vibration operation with the recognition of the above-described bonding part contact state as a trigger, thereby performing the ultrasonic bonding process in the application part of the bonding target. Can be completed, and the operation time required for the ultrasonic bonding process can be shortened.
- the ultrasonic vibration bonding apparatus can accurately detect the presence or absence of the above-described bonding part contact state with a relatively simple configuration in which the position detection unit 7 is provided in the air cylinder 4.
- the ultrasonic vibration bonding apparatus does not need to detect the presence or absence of the above-described joint contact state using a pressure sensor.
- the position detecting section 7 is generally provided in the air cylinder 4 and can be realized at a relatively low cost as compared with a pressure sensor or the like.
- the ultrasonic vibration bonding apparatus is a pressing mechanism that performs a pressing operation of applying the pressing force F2, which is a pressing force, to the ultrasonic bonding head unit 6.
- An air cylinder 4 and a servomotor 2 for raising and lowering functioning as a lowering mechanism for performing a lowering operation for lowering the head unit 6 for ultrasonic bonding are provided as parts separated from each other.
- the ultrasonic vibration bonding apparatus can individually control execution of the lowering operation and the pressurizing operation for the ultrasonic bonding head 6 as an operation target.
- the ultrasonic vibration bonding apparatus can individually control execution of the descending operation and the pressurizing operation, so that the ultrasonic bonding head unit 6 is controlled by the control unit 15.
- the control unit 15 By performing the lowering operation and the pressing operation as the operation targets relatively easily, it is possible to perform the ultrasonic bonding process on the bonding object.
- the glass substrate 31 and the electrode 33 disposed on the glass substrate 31 are assumed as the bonding target.
- the pressurizing operation can always be performed with a constant pressing force F2 from the beginning of the ultrasonic bonding process. Therefore, the pressing force F2 can be set in advance so as to have a desired pressure value. Therefore, the air cylinder 4 can accurately set the pressure value of the pressing force F2 to a desired pressure value without separately providing a pressure sensor.
- the ultrasonic vibration bonding apparatus employs the air cylinder 4 as the pressurizing mechanism, so that the pressurizing mechanism can be configured at relatively low cost.
- FIG. 6 is an explanatory view schematically showing a structure of an ultrasonic vibration bonding apparatus according to Embodiment 2 of the present invention.
- FIG. 6 shows an XYZ orthogonal coordinate system.
- the elevation servomotor 2X is fixed to the side surface having the XZ plane.
- the upper end (+ Z direction) of the screw shaft 21 is attached to the lifting servomotor 2X, and the lower end of the screw shaft 21 is connected to the common lifting slider 13 via a nut (not shown).
- the lifting servomotor 2X functions as a lifting mechanism that combines the lowering mechanism that performs the above-described lowering operation and the raising mechanism that performs the above-described raising operation.
- Three air cylinders 41 to 43 are mounted on the side of the common lifting slider 13 having the XZ plane.
- the part 6i is attached.
- the ultrasonic bonding heads 61 to 63 each include an ultrasonic horn 16 (ultrasonic bonding part 16a) and an ultrasonic vibrator 17 as main components, similarly to the ultrasonic bonding head 6 of the first embodiment. Contains.
- Each of the ultrasonic bonding heads 61 to 63 is formed so as to extend in the head forming direction (Y direction) in the order of the ultrasonic vibrator 17 and the ultrasonic horn 16, and has an ultrasonic bonding part 16a at a tip end. I have.
- the ultrasonic bonding part 16a of the ultrasonic bonding head part 61, the ultrasonic bonding part 16a of the ultrasonic bonding head part 62, and the ultrasonic bonding part 16a of the ultrasonic bonding head part 63 are spaced along the X direction. They are arranged evenly every d6.
- the ultrasonic bonding heads 61 to 63 respectively generate ultrasonic vibration UV on the ultrasonic vibrator 17 and transmit the ultrasonic vibration UV to the ultrasonic bonding part 16 a via the ultrasonic horn 16, whereby An ultrasonic vibration operation of applying ultrasonic vibration to the application section of the object to be welded from the ultrasonic bonding section 16a is performed.
- FIG. 7 is a block diagram schematically illustrating a control system of the ultrasonic vibration bonding apparatus according to the second embodiment.
- the control unit 15X includes the lifting / lowering servomotor 2X, the air cylinders 41 to 43, the ultrasonic transducers 17 in the ultrasonic bonding heads 61 to 63, and the driving unit.
- the control operation for controlling the drive of 19X is executed.
- the driving unit 19X performs a moving process for moving the three-head traveling frame 11 in the horizontal direction.
- the control unit 15X can control the pressing force F1 in the ⁇ Z direction by the lifting servomotor 2X by controlling the driving of the lifting servomotor 2X, and by controlling the air cylinders 41 to 43, respectively.
- the pressing force F2 (F21 to F23) of each of the air cylinders 41 to 43 in the ⁇ Z direction can be controlled.
- the pressing forces F1 and F2 satisfy the relationship of “F1> F2”.
- the ultrasonic bonding heads 61 to 63 are connected to the common lifting slider 13 via the pressure sliders 51 to 53, the piston rods 23 of the air cylinders 41 to 43, and the air cylinders 41 to 43. For this reason, the pressing force F1 in the ⁇ Z direction generated at the time of the descending operation performed by driving the elevation servomotor 2X becomes the descending pressing force in the descending operation common to the ultrasonic bonding heads 61 to 63.
- the pressing force is applied to the ultrasonic bonding head 6i by the cylinder 4i.
- the control unit 15X can control the moving process of the three-head traveling frame 11 along the horizontal direction by controlling the driving unit 19X.
- the ultrasonic vibration bonding apparatus can execute the ultrasonic bonding processing including the following steps S11 to S14 under the control of the control unit 15X. That is, the control unit 15X executes a control operation including steps S11 to S14.
- Step S11 The ultrasonic bonding sections 16a of the ultrasonic bonding heads 61 to 63 are arranged so as to be located above the application sections of the three objects to be bonded.
- Step S12 The air cylinders 41 to 43 are caused to execute the pressurizing operation with the pressing forces F21 to F23.
- Step S13 The screw shaft 21 is rotated in the first rotation direction by the driving of the servomotor 2X for raising and lowering, and the slider 13 for common raising and lowering, the air cylinders 41 to 43, the sliders 51 to 53 for pressing, and the head unit 61 for ultrasonic bonding are provided. A plurality of collective lowering operations of collectively moving downward through 63 are executed. At this time, the lifting servomotor 2X is controlled so that the pressure value in the ⁇ Z direction becomes the pressing force F1.
- the control unit 15X can recognize the entire joint contact state.
- the ultrasonic vibration bonding apparatus provides the position detection unit 7 in each of the air cylinders 41 to 43, so that the entire bonding part contact state can be quickly and accurately determined after the execution of step S13. Can be recognized.
- step S14 the ultrasonic vibration bonding apparatus according to the second embodiment executes the ultrasonic vibration processing using the recognition of the contact state of the entire bonding portion as a trigger. This brings about an effect that the ultrasonic bonding can be performed quickly and the operation time can be shortened.
- the ultrasonic vibration bonding apparatus can accurately recognize the contact state of the entire bonding portion with a relatively simple configuration in which the position detection section 7 is provided in the air cylinders 41 to 43.
- the ultrasonic vibration bonding apparatus performs the pressing operation of performing the pressing operation of applying the pressing forces F21 to F23, which are the pressing pressures, to the ultrasonic bonding heads 61 to 63.
- the air cylinders 41 to 43 as a mechanism and the lifting servomotor 2X functioning as a lowering mechanism for executing a plurality of collective lowering operations for integrally lowering the ultrasonic bonding heads 61 to 63 are provided as parts separated from each other. doing.
- the ultrasonic vibration bonding apparatus can individually control execution of the lowering operation and the pressing operation for the ultrasonic bonding heads 61 to 63 as operation targets.
- the ultrasonic vibration bonding apparatus can individually execute the lowering operation and the pressing operation similarly to the first embodiment, the ultrasonic bonding apparatus can control the ultrasonic bonding under the control of the control unit 15X.
- the lowering operation and the pressing operation for the operation heads 61 to 63 can be performed relatively easily, and the ultrasonic bonding process can be performed on the object to be bonded.
- the pressurizing operation can be always performed with constant pressing forces F21 to F23. Therefore, the pressing forces F21 to F23 can be set in advance so as to have a desired pressure value. Therefore, each of the air cylinders 41 to 43 can accurately set the pressing force F21 to F23 to a desired pressure value without separately providing a pressure sensor.
- the ultrasonic vibration bonding apparatus can configure the pressurizing mechanism relatively inexpensively by employing the air cylinders 41 to 43 as the pressurizing mechanism.
- the ultrasonic vibration bonding apparatus has the following features.
- three air cylinders 41 to 43 are provided as a plurality of pressure mechanisms while the number of the elevation servomotors 2X as the elevation mechanism is reduced to one.
- the air cylinders 41 to 43 are provided corresponding to the ultrasonic bonding heads 61 to 63 which are a plurality of ultrasonic bonding heads.
- the ultrasonic vibration bonding apparatus performs a lowering operation performed by one unit of the servomotor 2X for lifting and lowering the three ultrasonic bonding heads 61 to 63 and the three air cylinders 41 to 43.
- a plurality of collective lowering operations can be performed collectively.
- the ultrasonic vibration bonding apparatus realizes a configuration having three ultrasonic bonding heads 61 to 63 in a relatively small-scale configuration that does not increase the number of lifting servomotors 2X. Can be.
- FIG. 10 is an explanatory view schematically showing a structure of a conventional pressure type ultrasonic vibration bonding apparatus having three ultrasonic bonding heads.
- FIG. 10 shows an XYZ orthogonal coordinate system.
- three lifting / pressing / pressing servomotors 821 to 823 are fixed to the side surface having the XZ plane. Further, lifting / lowering / pressing sliders 831 to 833 are provided corresponding to the lifting / lowering / pressing servo motors 821 to 823.
- the ultrasonic bonding head portion 86i is formed to extend in the head forming direction (Y direction), and has an ultrasonic bonding portion 16a at a distal end portion.
- the ultrasonic bonding heads 861 to 863 each perform an ultrasonic vibration operation of applying ultrasonic vibration from the ultrasonic bonding section 16a.
- the lifting / lowering / pressing sliders 831 to 833 have pressure sensors 871 to 873 in the upper part.
- the pressure sensors 871 to 873 for example, strain gauges can be considered.
- Step 11 The ultrasonic bonding sections 16a of the ultrasonic bonding heads 861 to 863 are arranged so as to be located above the application sections of the three objects to be bonded.
- Step 14 After confirming that all the pressing pressures of the lifting / lowering / pressing servo motors 821 to 823 have reached the desired pressure values, the ultrasonic heads 861 to 863 perform the ultrasonic vibration operation respectively. .
- the three lifting / pressing / pressing servomotors 821 correspond to the ultrasonic bonding heads 861 to 863.
- To 823 had to be provided.
- the pressurizing mechanism air cylinders 41 to 43
- the elevating mechanism elevating servomotor 2X
- the ultrasonic vibration bonding apparatus suppresses the use of one unit of the servomotor 2X for raising and lowering as the raising and lowering mechanism and the air as the pressing mechanism even if the three ultrasonic bonding heads 61 to 63 are provided.
- the configuration can be such that only the number of cylinders is increased.
- the ultrasonic vibration bonding apparatus of the second embodiment has three ultrasonic bonding heads 61 to 63 as a plurality of ultrasonic bonding heads, a single ultrasonic bonding head is used.
- the ultrasonic vibration bonding apparatus according to the first embodiment having a plurality of application portions, when there are a plurality of application portions of the object to be bonded, the ultrasonic bonding process for all of the plurality of application portions can be completed earlier.
- FIG. 8 is an explanatory diagram showing a specific configuration of the joining object.
- two linear electrodes 33 are arranged on the upper surface of the glass substrate 31 along the X direction.
- a plurality of ultrasonic application regions 35 which are a plurality of application units, are set.
- the plurality of ultrasonic wave application areas 35 are uniformly provided at intervals d35 along the X direction.
- step S11 the ultrasonic bonding section 16a of the ultrasonic bonding head section 61 is positioned above the application position P1, and the ultrasonic bonding section 16a of the ultrasonic bonding head section 62 is The ultrasonic bonding unit 16a of the ultrasonic bonding head unit 63 is disposed above the application position P3 above the application position P2.
- the application positions P1, P2, and P3 are application positions arranged at intervals for each of the three ultrasonic application regions 35, so that the application positions P1 to P2 and P2 to P3 are formed at intervals d6.
- one ultrasonic bonding process including steps S11 to S14 is performed to connect the glass substrate 31 to the three ultrasonic application areas 35 (application positions P1 to P3). Ultrasonic bonding with the electrode 33 can be performed.
- step S11 to be newly executed the driving unit 19X is controlled to move the three-head traveling frame 11 along the + X direction by the distance d35.
- the ultrasonic bonding portion 16a of the ultrasonic bonding head 61 is located above the application position P11
- the ultrasonic bonding portion 16a of the ultrasonic bonding head 62 is located above the application position P12
- the ultrasonic bonding section 16a of the head section 63 for ultrasonic bonding is arranged so as to be located above the application position P13.
- the second ultrasonic bonding process consisting of steps S11 to S14 causes the three ultrasonic application areas 35 (application positions P11 to P13) to be in contact with the glass substrate 31. Ultrasonic bonding with the electrode 33 can be performed.
- step S11 to be newly executed the three-head traveling frame 11 is moved along the + X direction by the interval d35.
- the ultrasonic bonding part 16a of the ultrasonic bonding head 61 is located above the application position P21
- the ultrasonic bonding part 16a of the ultrasonic bonding head 62 is located above the application position P22
- the ultrasonic bonding section 16a of the ultrasonic bonding head section 63 is arranged so as to be located above the application position P23.
- the third ultrasonic bonding process including steps S11 to S14 causes the three ultrasonic application areas 35 (application positions P21 to P23) to be in contact with the glass substrate 31. Ultrasonic bonding with the electrode 33 can be performed.
- the ultrasonic bonding between the glass substrate 31 and the electrode 33 can be performed on nine ultrasonic application areas 35 continuously provided at the interval d35 by three ultrasonic bonding processes.
- the ultrasonic vibration bonding apparatus has a relatively simple and inexpensive configuration in which the lifting servomotor 2X as the lifting mechanism is suppressed to one unit. As a result, the ultrasonic bonding process can be executed at substantially three times the speed.
- the ultrasonic vibration bonding apparatus can shorten the tact time in which all the ultrasonic bonding processes are completed on the bonding target.
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Abstract
Description
(基本構成)
図1はこの発明の実施の形態1である超音波振動接合装置の構造を模式的に示す説明図である。図2は実施の形態1の超音波振動接合装置の構造の一部を模式的に示す説明図である。図1及び図2それぞれにXYZ直交座標系を記している。図1はXZ平面から視た正面図に相当し、図2はYZ平面から視た側面図に相当する。
図3は実施の形態1の超音波振動接合装置の制御系を模式的に示すブロック図である。同図に示すように、実施の形態1の超音波振動接合装置は制御部15をさらに有している。制御部15は、昇降用サーボモータ2、エアシリンダ4、超音波接合用ヘッド部6内の超音波振動子17及び駆動部19の駆動を制御する制御動作を実行する。
このように、実施の形態1の超音波振動接合装置は、エアシリンダ4内におけるピストン25の高さ方向(Z方向)における高さ位置が、所定位置であるか所定位置より高い位置にあるかを検出可能な位置検出部7を設けることにより、ステップS3の実行後において上記接合部接触状態の有無を迅速、かつ正確に認識することができる。
(基本構成)
図6はこの発明の実施の形態2である超音波振動接合装置の構造を模式的に示す説明図である。図6にXYZ直交座標系を記している。
図7は実施の形態2の超音波振動接合装置の制御系を模式的に示すブロック図である。図7に示すように、実施の形態2において、制御部15Xは、昇降用サーボモータ2X、エアシリンダ41~43、超音波接合用ヘッド部61~63それぞれ内の超音波振動子17及び駆動部19Xの駆動を制御する制御動作を実行している。
このように、実施の形態2の超音波振動接合装置は、エアシリンダ41~43それぞれに位置検出部7を設けることにより、ステップS13の実行後において上記全体接合部接触状態を迅速、かつ正確に認識することができる。
この発明は詳細に説明されたが、上記した説明は、すべての局面において、例示であって、この発明がそれに限定されるものではない。例示されていない無数の変形例が、この発明の範囲から外れることなく想定され得るものと解される。
2,2X 昇降用サーボモータ
3 昇降用スライダ
4,41~43 エアシリンダ
5,51~53 加圧用スライダ
6,61~63 超音波接合用ヘッド部
7 位置検出部
11 3ヘッド走行フレーム
13 共通昇降用スライダ
16 超音波ホーン
16a 超音波接合部
17 超音波振動子
30 テーブル
31 ガラス基板
33 電極
Claims (6)
- 接合対象物(31,33)を載置するテーブル(30)と、
超音波接合部(16a)から超音波振動を印加する超音波振動動作を実行する超音波接合用ヘッド部(6,61~63)と、
前記超音波接合用ヘッド部に連結され、前記超音波接合用ヘッド部に対し前記テーブル側に向けて加圧する加圧動作を実行する加圧機構(4,41~43)と、
前記超音波接合用ヘッド部及び前記加圧機構を一括して下降させる下降動作を実行する下降機構(2,2X)と、
前記超音波接合用ヘッド部による前記超音波振動動作、前記加圧機構による前記加圧動作、及び前記下降機構による前記下降動作を制御する制御動作を実行する制御部(15)とを備える、
超音波振動接合装置。 - 請求項1記載の超音波振動接合装置であって、
前記加圧機構はエアシリンダを含み、前記エアシリンダはピストンロッドを介して前記超音波接合用ヘッド部に連結され、
前記エアシリンダのピストンロッドから前記超音波接合用ヘッド部に加圧用押圧力が付与される、
超音波振動接合装置。 - 請求項2記載の超音波振動接合装置であって、
前記制御部は、
前記下降機構は下降用押圧力(F1)で前記下降動作を実行し、
前記加圧機構は前記加圧用押圧力(F2,F21~F23)で前記加圧動作を実行し、
前記下降用押圧力は前記加圧用押圧力よりも大きくなるように設定され、
前記制御部が実行する前記制御動作は、
(a) 前記超音波接合用ヘッド部の前記超音波接合部が前記接合対象物の印加部の上方に位置するように配置するステップと、
(b) 前記加圧機構に前記加圧動作を実行させるステップと、
(c) 前記下降機構に前記下降動作を実行させるステップと、
(d) 前記接合対象物の印加部に前記超音波接合部が接触する接合部接触状態の認識をトリガとして、前記超音波接合用ヘッド部に前記超音波振動動作を実行させるステップとを含む、
超音波振動接合装置。 - 請求項3記載の超音波振動接合装置であって、
前記エアシリンダは、内部のピストンの位置を検知する位置検出部(7)をさらに有する、
超音波振動接合装置。 - 請求項1から請求項4のうち、いずれか1項に記載の超音波振動接合装置であって、
前記超音波接合用ヘッド部は複数の超音波接合用ヘッド部(61~63)を含み、
前記加圧機構は、前記複数の超音波接合用ヘッド部に対応して設けられる、複数の加圧機構(41~43)を含み、
前記下降機構(2X)が実行する前記下降動作は、前記複数の超音波接合用ヘッド部及び前記複数の加圧機構を一括して下降させる複数一括下降動作を含む、
超音波振動接合装置。 - 請求項1から請求項5のうち、いずれか1項に記載の超音波振動接合装置であって、
前記接合対象物は、
ガラス基板(31)と、
前記ガラス基板上に配置される電極(33)とを含む、
超音波振動接合装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EP18925053.3A EP3654368A4 (en) | 2018-09-20 | 2018-09-20 | ULTRASONIC VIBRATION WELDING DEVICE |
US16/610,139 US11214017B2 (en) | 2018-09-20 | 2018-09-20 | Ultrasonic vibration welding apparatus |
KR1020207009721A KR102397667B1 (ko) | 2018-09-20 | 2018-09-20 | 초음파 진동 접합 장치 |
AU2018422116A AU2018422116B2 (en) | 2018-09-20 | 2018-09-20 | Ultrasonic vibration welding apparatus |
PCT/JP2018/034713 WO2020059061A1 (ja) | 2018-09-20 | 2018-09-20 | 超音波振動接合装置 |
CN201880063096.2A CN111201591B (zh) | 2018-09-20 | 2018-09-20 | 超声波振动焊接装置 |
JP2019528945A JP6763090B1 (ja) | 2018-09-20 | 2018-09-20 | 超音波振動接合装置 |
TW108116233A TWI741293B (zh) | 2018-09-20 | 2019-05-10 | 超音波振動接合裝置 |
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AU2018422116A1 (en) | 2020-04-09 |
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CN111201591A (zh) | 2020-05-26 |
AU2018422116B2 (en) | 2021-05-27 |
US20200156328A1 (en) | 2020-05-21 |
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TWI741293B (zh) | 2021-10-01 |
CN111201591B (zh) | 2023-02-21 |
JP6763090B1 (ja) | 2020-09-30 |
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US11214017B2 (en) | 2022-01-04 |
TW202012087A (zh) | 2020-04-01 |
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