CN201274287Y - Ultrasonic aluminum thread pressure welding machine - Google Patents

Ultrasonic aluminum thread pressure welding machine Download PDF

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Publication number
CN201274287Y
CN201274287Y CNU2008200723458U CN200820072345U CN201274287Y CN 201274287 Y CN201274287 Y CN 201274287Y CN U2008200723458 U CNU2008200723458 U CN U2008200723458U CN 200820072345 U CN200820072345 U CN 200820072345U CN 201274287 Y CN201274287 Y CN 201274287Y
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CN
China
Prior art keywords
plate
tablet
guide rail
displacement platform
aluminum wire
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CNU2008200723458U
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Chinese (zh)
Inventor
高跃红
魏丽
宋志�
李树峰
刘亚忠
郑福志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGCHUN GUANGHUA MICRO-ELECTRONICS EGUIPMENT ENGINEERING CENTER Co Ltd
Original Assignee
CHANGCHUN GUANGHUA MICRO-ELECTRONICS EGUIPMENT ENGINEERING CENTER Co Ltd
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Priority to CNU2008200723458U priority Critical patent/CN201274287Y/en
Application granted granted Critical
Publication of CN201274287Y publication Critical patent/CN201274287Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/74Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
    • H01L24/78Apparatus for connecting with wire connectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/45099Material
    • H01L2224/451Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
    • H01L2224/45117Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
    • H01L2224/45124Aluminium (Al) as principal constituent
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/45099Material
    • H01L2224/451Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
    • H01L2224/45138Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
    • H01L2224/45144Gold (Au) as principal constituent
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/74Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
    • H01L2224/78Apparatus for connecting with wire connectors
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/85Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/80Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
    • H01L2224/85Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
    • H01L2224/852Applying energy for connecting
    • H01L2224/85201Compression bonding
    • H01L2224/85205Ultrasonic bonding
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/00014Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01005Boron [B]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01013Aluminum [Al]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01023Vanadium [V]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01033Arsenic [As]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01079Gold [Au]
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/01Chemical elements
    • H01L2924/01082Lead [Pb]

Abstract

The utility model relates to an ultrasonic aluminum wire press welder; a two-dimension electric displacement platform is fixedly arranged on a mainframe box; a welding head is arranged on the two-dimension electric displacement platform; a camera is arranged on the welding head; and a control system is respectively connected with the camera, the two-dimension electric displacement platform and the welding head. Furthermore, a material sheet is positioned on a sheet transportation guide rail, and a clamping roller and a delivery wheel respectively prop against the upper surface and the lower surface of the material sheet. In addition, a connecting rack is connected with a transmission system; one end of a pitch regulating mechanism is connected with the connecting rack; the other end of the pitch regulating mechanism is movably connected with a poking needle seat through a hinge and an elastic member; and the other end of the poking needle seat is fixedly connected with poking needles. The utility model realizes the alignment of welding spots and the automatic control of welding by a image identifying technique and an automatic control technique, automatically transports material sheets and regulates the moving distances of the material sheets on the sheet transportation guide rail, thereby conserving the manpower resources, lowering the labor intensity and enhancing the production efficiency and the qualification rate of products.

Description

Ultrasonic aluminum wire press welder
Technical field
The utility model relates to a kind of ultrasonic aluminum wire press welder.
Background technology
In China, microelectronics Packaging equipment is all introduced by the U.S., Korea S, Japan at present, and the microelectronics Packaging equipment of developing China as early as possible is the important business that promotes China's semiconductor development.The lead welding equipment of China's introduction at present is gold wire bonder mostly, and the spun gold cost is very high, for reducing production costs the domestic ultrasonic aluminum wire press welder of developing in succession.Used ultrasonic aluminum wire press welder comprises mainframe box, clamping fixture seat, anchor clamps, soldering tip, wire feeder, microscope at present; This ultrasonic aluminum wire press welder is to utilize microscope to lean on eye to observe, and the operator does not stop a moment stares at welding zone, very big to the damage of eye; And the anchor clamps displacement is to realize by the manual chucking operation seat of people, the operation that operator's two hands do not stop a moment, and labour intensity is big.Because there is misoperation in the people when fatigue or energy are not concentrated, thereby causes product percent defective height, product quality descends, and manually operated inconsistency causes instability, inefficiency also for the performance of product.Human resources and labour intensity that manual operation expends are big.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of image recognition technology and automatic control technology used and realizes the welding ultrasonic aluminum wire press welder of control automatically.
In order to solve the problems of the technologies described above, ultrasonic aluminum wire press welder of the present utility model comprises mainframe box, two-dimensional electricity driving displacement platform, soldering tip, camera, control system; Two-dimensional electricity driving displacement platform is fixedly mounted on the mainframe box; Soldering tip is installed on the two-dimensional electricity driving displacement platform; Camera is installed in the top of soldering tip; Control system is connected with camera, two-dimensional electricity driving displacement platform and soldering tip respectively.
Camera is taken the image of soldering tip and tablet constantly, and it is transferred to control system; Control system is calculated and is handled the view data that receives, and exports control signal according to the result who calculates and handle then, moves with the control two-dimensional electricity driving displacement platform and realizes the solder joint contraposition; Finish welding by control system control soldering tip at last.
Described control system is made up of image pick-up card, computer and servo controlling card; The soldering tip that the image pick-up card acquisition camera is taken and the view data of tablet also are transferred to computer with it; Computer calculates and handles the view data that receives, and exports control signal according to the result who calculates and handle then, makes servo controlling card output transfer wide ripple to move with the control two-dimensional electricity driving displacement platform and realizes the solder joint contraposition; Finish welding by the computer control soldering tip at last.
Described control system can also adopt single-chip microcomputer, DSP or ARM etc.; Single-chip microcomputer, DSP or ARM directly are connected with camera, receive the camera shot image data, this view data is calculated and handled, and directly export control signal according to the result who calculates and handle and move the contraposition of realization solder joint with the control two-dimensional electricity driving displacement platform, control soldering tip then and finish welding.
Ultrasonic aluminum wire press welder of the present utility model also comprises the film conveying device that is installed on the mainframe box; Described film conveying device comprises the film trasport guide rail, pinch roller, and delivery wheel, link, needle stand is dialled by regulation by pitch mechanism, dials pin; Described tablet is positioned on the film trasport guide rail; Pinch roller and delivery wheel press the upper surface and the lower surface of tablet respectively; Link is connected with drive system; One end of regulation by pitch mechanism is connected with link, and the other end of regulation by pitch mechanism is by hinge and elastomeric element and dial the needle stand flexible connection; The other end of dialling needle stand is fixedlyed connected with group pin.
Described elastomeric element can be torsion spring, and this torsion spring is installed on the hinge that connects regulation by pitch mechanism and group needle stand.
Described elastomeric element can be spring, and an end of this spring is connected with regulation by pitch mechanism, and the other end is connected with group needle stand.
Ultrasonic aluminum wire press welder of the present utility model also comprises two feeding devices that are installed in film conveying device both sides on the mainframe box; Described feeding device comprises hopper, first horizontal transport agency, second horizontal transport agency, vertical lifting mechanism, magazine and disclose the sheet device; One side opening of hopper, opposite side are installed and are disclosed the sheet device, and vertical lifting mechanism is installed at the rear portion; First horizontal transport agency and second horizontal transport agency are installed respectively on the base plate of hopper and the dividing plate.
The described sheet device of disclosing comprises and discloses the sheet motor, crank, follower lever, line slideway, push jack piece; The rotating shaft of disclosing the sheet motor is connected with follower lever by crank; The push jack piece is made of two orthogonal two straight-bars, has groove on one of them straight-bar, and the upper end of follower lever is stretched out by this groove.
The inwall along continuous straight runs of magazine has groove, and tablet is positioned at groove.
At first, the magazine that first horizontal transport agency of a feeding device will be equipped with tablet is sent to vertical lifting mechanism, disclose the sheet motor rotation, crank is that rotate at the center to disclose the sheet machine shaft, driving follower lever moves with the crank end points, make the push jack piece reciprocating on line slideway, the side of the tablet in the magazine by the hopper opening is pushed out on the film trasport guide rail.Empty magazine is sent hopper by second horizontal transport agency.
Delivery wheel and pinch roller rotate simultaneously, and insert in the space of tablet the upper end that makes tablet move to group pin on the film trasport guide rail.Link moves under the drive of drive system then, and link drives group pin and moves by regulation by pitch mechanism, group needle stand, and two pitches of dialling between the pin can utilize regulation by pitch mechanism to regulate.Dial when pin moves to final position and stop, carrying out the location and the welding of tablet solder joint this moment.Link makes group needle stand move to starting point under the drive of drive system then, dials pin rotates to tablet around hinge under the effect of tablet shear force lower surface, dials pin like this and just can slide to starting point with dialling needle stand.Slide into starting point when dialling pin, dial needle stand and under the tension of spring, get back to the equilbrium position, dial the upper end of pin and insert in the next space of tablet.Dial when pin moves to final position once more and stop, carrying out the location and the welding of tablet solder joint; So finally finish the welding of all solder joints of tablet repeatedly.
First horizontal transport agency of another feeding device is sent to vertical lifting mechanism with empty magazine; Solder joint welding all on tablet finish, and disclose the sheet motor rotation, and crank is that rotate at the center to disclose the sheet machine shaft, drives follower lever and moves with the crank end points, makes the push jack piece reciprocating on line slideway, and tablet is gone into magazine by a thruster of hopper opening.Expect then to drop on the base plate, by second horizontal transport agency magazine is sent hopper at last with vertical lifting mechanism.
The utility model can automatic charging, automatic blanking is uploaded the feeding sheet and regulate the distance that tablet moves on the film trasport guide rail at the film trasport guide rail automatically, thereby saved human resources, it is little to have reduced labour intensity, has improved the stability and the operating efficiency of press welder work.
Described film conveying device also comprises damping wheel, damping seat arm, and Connection Block, pressure is regulated bolt; Connection Block is fixed on the film trasport guide rail, and an end of damping seat arm is connected with Connection Block with elastomeric element by hinge, and damping wheel is installed in the other end of damping seat arm, and damping wheel is pressed against the upper surface of tablet; Pressure is regulated the middle part that bolt is installed in damping seat arm, and its axis normal is in tablet.
Described elastomeric element can be torsion spring, and this torsion spring is installed in the rotating shaft that connects damping seat arm and Connection Block.
Described elastomeric element can also be spring, this spring an end be connected with Connection Block, the other end is connected with damping seat arm.
Adjust pressure and regulate bolt and change gap between its lower end and the film trasport guide rail, just can adjust damping wheel and act on pressure on the tablet.When dial pin on the film trasport guide rail when starting point is slided, the frictional force between damping wheel and the tablet is greater than the force of sliding friction of dialling between pin and the tablet, it is mobile to dial pin tablet when turning back to starting point, the tablet accurate positioning.
Described film conveying device also comprises card compressing tablet mechanism, and described card compressing tablet mechanism comprises first cam, first connecting plate, vertical guide rail, paw; First cam connects with first connecting plate; First connecting plate connects with the sliding seat of vertical guide rail, and first connecting plate is connected with vertical guide rail sliding seat elasticity.
Described card compressing tablet mechanism also comprises second cam, second connecting plate, cross slide way, plate; Second cam connects with second connecting plate; Second connecting plate is connected with the sliding seat of cross slide way, and second connecting plate is connected with cross slide way sliding seat elasticity; Second connecting plate is fixedlyed connected with plate.
First cam rotation is jack-up first connecting plate gradually, and first connecting plate moves up along vertical guide rail, by the first Connection Block jack-up paw; Second cam rotation makes second to connect and move along cross slide way, and plate moves with second connecting plate and tablet breaks away from, and dials pin this moment and can stir tablet and move on guide rail.When tablet is stopping after moving a pitch on the guide rail, the rotation of second cam, second connecting plate moves along cross slide way in the effect of elastic force, and plate moves with second Connection Block, and the front end of plate inserts the space of tablet, and tablet is fixed; The rotation of first cam, first connecting plate moves down at elastic force effect lower edge vertical guide rail paw is pressed on the tablet.Can carry out the welding of solder joint this moment.Owing to adopt to insert the horizontal level of tablet is fixed, and adopted paw to make tablet press base plate below it, make press welder can carry out the welding of tablet solder joint reliably.
Utilize the utility model image recognition technology and automatic control technology realize solder joint contraposition and welding control automatically, have saved human resources, have reduced labour intensity, have improved the qualification rate of production efficient and product.Particularly adopt automatically transporting materials device and automatic film movement device, guaranteed the consistency and the stability of bonding wire, improved the quality of product.
Ultrasonic aluminum wire press welder of the present utility model comprises that also being installed on the mainframe box is the turntable in the center of circle with the soldering tip chopper, is carved with scale on the chassis of turntable, and two-dimensional electricity driving displacement platform is installed on the turntable.
Described turntable can also adopt automatically controlled turntable.
But the angle manual adjustments that turntable rotates.When the very oblique situation of needs welding lead bonding wire, fixing with screw behind the turntable commentaries on classics certain angle, the cabling of bonding wire just becomes straight line or near straight line, has guaranteed the quality of welding like this, and reduced the time of image recognition and the time of solder joint contraposition, improved operating efficiency.
The in parallel use of two ultrasonic aluminum wire press welders of turntable is installed,, more can reduces the time of image recognition and the time of solder joint contraposition effectively at two situations that the bonding wire angle is different of being welded; And, can enhance productivity effectively at the situation that requirement on the tablet has two kinds of different aluminum wire bonds to connect.
Described two-dimensional electricity driving displacement platform comprises base station, and Y is to motor, and Y is to drive rod, and Y is to moving platform, and X is to motor, and X is to drive rod, and X is to moving platform, and X is to transition bench, and Y is to transition bench, trace; Base station is fixed on the mainframe box; Y is fixed on the base station to motor, and the Y that Y places base station to moving platform is on guide rail, and Y is connected to moving platform with Y to drive rod by Y to motor; X to moving platform place Y to the X of moving platform on guide rail; X is fixed on the base station to motor; The X that X places base station to transition bench is on guide rail, and X is connected to transition bench with X to drive rod by X to motor; Y to transition bench place X to the Y of transition bench on guide rail; One end of trace is fixedlyed connected to moving platform with X, and the other end is fixedlyed connected to transition bench with Y; Soldering tip is fixedly mounted on X on moving platform.
Control system output control signal make Y to motor by Y to drive rod drive Y to moving platform in Y reciprocating motion on guide rail, Y makes Y to moving back and forth to transition bench at X on transition bench, this moment, X simultaneously made Y to move back and forth to moving platform and Y to transition bench with Y to moving platform, trace.Control system output control signal makes X drive X by X to drive rod to motor and moves back and forth on guide rail to the X of transition bench at base station, and Y moves to transition bench with X to transition bench, and X moves back and forth on guide rail to the X of moving platform at Y to moving platform and trace simultaneously.Soldering tip just can move at the X-Y two-dimensional directional to moving platform with X and realize the solder joint contraposition like this.
Because X places on the base station to motor, make that moving component (comprise X to moving platform, X to transition bench, Y to transition bench, trace) quality is significantly reduced, under the constant situation of motor driven moment, realized high acceleration, thereby improved the velocity of displacement of soldering tip.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the front view of ultrasonic aluminum wire press welder of the present utility model.
Fig. 2 is the left view of ultrasonic aluminum wire press welder of the present utility model.
Fig. 3 is the two-dimensional electricity driving displacement platform stereogram.
Fig. 4 is the front view of film conveying device.
Fig. 5 is that the B of Fig. 4 is to partial top view.
Fig. 6 is the front view of card compressing tablet mechanism.
Fig. 7 is the front view of feeding device.
Fig. 8 is the left view of feeding device.
Fig. 9 is that the A of Fig. 8 is to view.
Embodiment
As shown in Figure 1, 2, ultrasonic aluminum wire press welder of the present utility model comprises mainframe box 1, wire feeder 7, soldering tip 2, camera 4, control system, two-dimensional electricity driving displacement platform 3; Two-dimensional electricity driving displacement platform 3 is fixedly mounted on the mainframe box 1; Soldering tip 2 is installed on the two-dimensional electricity driving displacement platform 3; Camera 4 is installed in the top of soldering tip 2; Control system is connected with camera 4, two-dimensional electricity driving displacement platform 3 and soldering tip 2 respectively.
Described camera 4 adopts the CCD camera.
Described control system can be made up of image pick-up card, computer and servo controlling card; One end of image pick-up card is connected with camera 4, and the other end is connected with computer; Camera 4 is taken the image of soldering tip 2 and tablet constantly; Image pick-up card acquisition camera 4 shot image data also are transferred to computer with it; Computer carries out analytical calculation and processing to the view data that receives, and exports control signal according to the result who calculates and handle then, SERVO CONTROL card control two-dimensional electricity driving displacement platform 3 is moved realize the solder joint contraposition; Finish welding by computer control soldering tip 2 at last.
Described control system can also adopt single-chip microcomputer, DSP or ARM etc.; Single-chip microcomputer, DSP or ARM directly are connected with camera 4, receive camera 4 shot image data and it is calculated and handles, and directly export control signal control two-dimensional electricity driving displacement platform 3 according to the result who calculates and handle and move the contraposition of realization solder joint, control soldering tip 2 then and finish welding.
As shown in Figure 4, ultrasonic aluminum wire press welder of the present utility model also comprises film conveying device; Described film conveying device comprises film trasport guide rail 202, pinch roller 212, and delivery wheel 211, link 210, needle stand 215 is dialled by regulation by pitch mechanism 214, and spring 218 is dialled pin 219; Described film trasport guide rail 202 is installed on the support 201, and support 201 is fixedly mounted on the mainframe box 1.Tablet 203 is positioned on the film trasport guide rail 202, and pinch roller 212 and delivery wheel 211 press the upper surface and the lower surface of tablet 203 respectively; Pinch roller 212 and delivery wheel 211 make tablet 203 move along film trasport guide rail 202 by the driven by motor rotation.Link 210 is connected with drive system 213; One end of regulation by pitch mechanism 214 adopts holding screw to fixedly connected with link 210, and two pitches of dialling between the pin 219 can utilize the axle of regulation by pitch mechanism 214 to regulate.The other end of regulation by pitch mechanism 214 is connected with group needle stand 215 by hinge 216; An end of dialling needle stand 215 is connected with an end of spring 218, and the other end of dialling needle stand 215 is fixedlyed connected with group pin 219; The other end of spring 218 is connected with regulation by pitch mechanism 214 by spring base 217.After dialling pin 219 and moving to final position, motor drives by drive system 213, link 210, regulation by pitch mechanism 214 and dials needle stand 215 and move to starting point, dial pin 219 rotates to tablet 203 around hinge 216 under tablet 203 shear force effects lower surface, dial pin 219 like this and just can slide to starting point with dialling needle stand 215.Slide into starting point when dialling pin 219, dial needle stand 215 and under the tension of spring 218, get back to the equilbrium position, dial the upper end of pin 219 and insert in the next space of tablet 203.
Shown in Fig. 4,5, film conveying device also comprises damping wheel 223, damping seat arm 222, and Connection Block 220, spring 225, pressure is regulated bolt 224; Connection Block 220 is by being bolted on the film trasport guide rail 202, and an end of damping seat arm 222 is connected with Connection Block 220 by hinge 221, and damping wheel 223 is installed in the other end of damping seat arm 222; One end of spring 225 is connected with the lower part of Connection Block 220, and the other end is connected with the middle part of damping seat arm 222; Pressure is regulated the middle part that bolt 224 is installed in damping seat arm 222, and its axis normal is in tablet 203; Damping wheel 223 is pressed against the upper surface of tablet 203 by the pulling force of spring 225.
Adjust pressure and regulate the gap that bolt 224 changes between its lower end and the film trasport guide rail 202, just can adjust damping wheel 223 and act on pressure on the tablet 203, make dial pin 219 on the film trasport guide rail 202 when starting point is slided, frictional force between damping wheel 223 and the tablet 203 is greater than the force of sliding friction of dialling between pin 219 and the tablet 203, it is mobile to dial pin 219 tablet 203 when turning back to starting point like this, thereby has guaranteed the accurate positioning of tablet 203.
As shown in Figure 6, film conveying device also comprises first cam, 231, the first connecting plates 232, vertical guide rail 233, preceding paw 237, back paw 238, the second cams 241, the second connecting plates 242, cross slide way 243, plate 245; First cam 231 contacts with the cam following wheel of the lower surface of first connecting plate 232; First connecting plate 232 connects with vertical guide rail 233 sliding seats, can slide along vertical guide rail 233, and first connecting plate 232 is connected with vertical guide rail 233 sliding seat elasticity by spring 234; First connecting plate 232 is fixedlyed connected with back paw 238 with preceding paw 237 by first Connection Block 235, adjustment piece 236.Second cam 241 contacts with the cam following wheel of second connecting plate, 242 lower surfaces; Second connecting plate 242 is connected with the sliding seat of cross slide way 243, can slide along cross slide way 243, and second connecting plate 242 is connected with cross slide way 243 sliding seat elasticity by spring 234; Fixedly connected with plate 245 in the upper end of second connecting plate 242.
First cam 231 rotates under the drive of motor, above the part that first cam, 231 radiuses are bigger turns to gradually, jack-up cam following wheel makes first connecting plate 232 move up along vertical guide rail 233, paw 237 and back paw 238 before first Connection Block, 235 jack-up.241 rotations of second cam, the thickness of contact site changes from small to big between second cam 241 and the cam following wheel, and second connecting plate 242 is moved along cross slide way 243, and plate 245 moves with tablet 203 with second connecting plate 242 and breaks away from.Dial pin 219 and stir tablet 203 and on film trasport guide rail 202, move, when tablet 203 is stopping after moving a pitch on the film trasport guide rail 202; Second cam 241 continues rotation, and second connecting plate 242 moves along cross slide way 243 in the effect of spring 244, and plate 245 moves with second Connection Block, and the front end of plate 245 inserts the space of tablet 203, makes tablet 203 fixing; First cam 231 continues rotation, and above the less part of its radius turned to gradually, first connecting plate 232 moved down at spring 244 effect lower edge vertical guide rails 233, and paw 237 and back paw 238 are pressed on the tablet 203 before making; Can carry out the welding of solder joint this moment.
Shown in Fig. 7,8,9, ultrasonic aluminum wire press welder of the present utility model also comprises two feeding devices 6 that are fixedly mounted on film conveying device 5 both sides on the mainframe box 1; Described feeding device 6 comprises hopper 110, the first horizontal transport agencies 113, the second horizontal transport agencies 114, vertical lifting mechanism 130, magazine 120 and disclose the sheet device.One side opening of hopper 110, opposite side are installed and are disclosed the sheet device; The described sheet device of disclosing comprises and discloses sheet motor 141, crank 142, follower lever 143, line slideway 145, push jack piece 144; The rotating shaft of disclosing sheet motor 141 is connected with follower lever 143 by crank 142; Push jack piece 144 is made of two orthogonal two straight-bars, has groove 146 on one of them straight-bar, and the upper end of follower lever 143 is stretched out by this groove 146.Vertical lifting mechanism 130 is installed at the rear portion of hopper 110, and vertical lifting mechanism 130 adopts known electric lifting mechanism.First horizontal transport agency 113 and second horizontal transport agency, 114, the first horizontal transport agencies 113 and the known conveyer belt conveying mechanism of second horizontal transport agency, 114 employings are installed respectively on the base plate 112 of hopper 110 and the dividing plate 111.
The described sheet device of disclosing can also adopt linear electric motors directly to drive push jack piece 144 tablet is released magazine 120 or pushed magazine 120.
The inwall along continuous straight runs of magazine 120 has groove 121, and tablet 203 is positioned at groove 121.
Ultrasonic aluminum wire press welder of the present utility model can also comprise that being installed on the mainframe box 1 is the turntable 10 in the center of circle with soldering tip 2 choppers, is carved with scale on the chassis of turntable 10, and two-dimensional electricity driving displacement platform is installed on the turntable 10.But the angle manual adjustments that turntable 10 rotates.
Because soldering tip 2 has only Y, Z two-dimensional motion, two-dimensional electricity driving displacement platform also is X, Y two-dimensional motion, so for drawing the very oblique line of bonding wire in the welding semiconductor device, depend the two-dimensional electricity driving displacement platform motion alone and easily aluminium wire is pulled out the chopper groove, cause on the frame pin solder joint rosin joint or do not weld, and the time of image recognition and solder joint are longer to bit time.
When the very oblique situation of needs welding lead bonding wire, fixing with screw behind the turntable 10 commentaries on classics certain angles, the cabling of bonding wire just becomes straight line or near straight line, has guaranteed the quality of welding like this, and reduced the time of image recognition and the time of solder joint contraposition, improved operating efficiency.
Ultrasonic aluminum wire press welder of the present utility model also can carry out the setting or the operation of parameter according to different situations by computer keyboard, to realize the contraposition of solder joint by the situation of microscope 8 and display 9 observation tablets and bonding wire.
Described turntable 10 can also adopt automatically controlled turntable.
The motor that is adopted in motor in the two-dimensional electricity driving displacement platform, film conveying device 5 and the feeding device 6 is all by the wide ripple control of the accent of control system output running.
The utility model has been realized automatic charging, blanking, film trasport and solder joint contraposition by control system control.
Ultrasonic aluminum wire press welder of the present utility model can require be selected two or several in parallel uses of machines according to production, a shared cover feeding device, and the system of two or several machines can independently control, also can a shared cover control system.
Described two-dimensional electricity driving displacement platform 3 can adopt present known two-dimensional electricity driving displacement platform, also can adopt following structure:
As shown in Figure 3, two-dimensional electricity driving displacement platform 3 comprises base station 11, and Y is to motor 12, and Y is to drive rod 13, and Y is to moving platform 14, and X is to motor 15, and X is to drive rod 16, and X is to moving platform 17, and X is to transition bench 18, and Y is to transition bench 19, trace 20; Base station 11 is fixedly mounted on the mainframe box 1; Y is fixed on the base station 11 to motor 12, and the Y that Y places base station 11 to moving platform 14 is on guide rail, and Y is connected to moving platform 14 with Y to drive rod 13 by Y to motor 12, X to move platform 17 place Y to the X that moves platform 14 on guide rail; X is fixed on the base station 11 to motor 15; The X that X places base station 11 to transition bench 18 is on guide rail, and X is connected to transition bench 18 with X to drive rod 16 by X to motor 15; Y to transition bench 19 place X to the Y of transition bench 18 on guide rail; One end of trace 20 and X connect as one to moving platform 17, and the other end and Y connect as one or are fixed together by modes such as welding, screwings to transition bench 19; Soldering tip 2 is fixedly mounted on X on moving platform 17.
Ultrasonic aluminum wire press welder of the present utility model has adopted automatic control technology and Computer Control Technology on the manual ultrasonic aluminum wire press welder basis of prior art, make its improvement become the equipment that can weld automatically.Increased automatically transporting materials mechanism in addition especially, replaced manual material loading, the fully-automatic equipment that become automatic loading/unloading, welds automatically, production efficiency and product quality have been improved greatly, guarantee product bonding wire consistency and stability, saved human resources simultaneously, reduced labour intensity.Welding efficiency and quality have been improved greatly.Adopt the interior image pick-up card of camera and mainframe box to realize the IMAQ of tablet jointly, discern the position of tablet by software processing automatically.Fixedly two-dimensional electricity driving displacement platform and turntable under the manual ultrasonic aluminum wire press welder soldering tip of prior art, the fixed form of two-dimensional electricity driving displacement platform can have dual mode, a kind of be the X-axis platform on the Y-axis platform, a kind of is that the X-axis platform is under the Y-axis platform.Realize the automatic displacement of soldering tip by computer according to the tablet bond pad locations control two-dimensional electricity driving displacement platform that collects, thereby realize welding automatically.Solder joint location accurately, the bonding wire high conformity has improved the quality of product.Two-dimensional electricity driving displacement platform adopts ball-screw and V-type to intersect ball-shaped guide rail or line style slide block guide rail, and motor adopts stepping or servomotor, can also be according to production requirement on the two-dimensional electricity driving displacement platform or add manual or automatic turntable down.

Claims (7)

1, a kind of ultrasonic aluminum wire press welder comprises mainframe box (1), and soldering tip (2) is characterized in that also comprising two-dimensional electricity driving displacement platform (3), camera (4), control system, film conveying device (5); Two-dimensional electricity driving displacement platform (3) is fixedly mounted on the mainframe box (1); Soldering tip (2) is installed on the two-dimensional electricity driving displacement platform (3); Camera (4) is installed in the top of soldering tip (2); Control system is connected with camera (4), two-dimensional electricity driving displacement platform (3) and soldering tip (2) respectively; Film conveying device (5) is installed on the mainframe box (1); Described film conveying device (5) comprises film trasport guide rail (202), pinch roller (212), and delivery wheel (211), link (210), needle stand (215) is dialled by regulation by pitch mechanism (214), dials pin (219); Tablet (203) is positioned on the film trasport guide rail (202); Pinch roller (212) and delivery wheel (211) press the upper surface and the lower surface of tablet (203) respectively; Link (210) is connected with drive system (213); One end of regulation by pitch mechanism (214) is connected with link (210), and the other end of regulation by pitch mechanism (214) is by hinge and elastomeric element and dial needle stand (215) flexible connection; The other end of dialling needle stand (215) is fixedlyed connected with group pin (219).
2, ultrasonic aluminum wire press welder according to claim 1 is characterized in that described film conveying device (5) also comprises damping wheel (223), damping seat arm (222), and Connection Block (220), pressure is regulated bolt (224); Connection Block (220) is fixed on the film trasport guide rail (202), one end of damping seat arm (222) is connected with Connection Block (220) with elastomeric element by hinge, damping wheel (223) is installed in the other end of damping seat arm (222), and damping wheel (223) is pressed against the upper surface of tablet (203); Pressure is regulated the middle part that bolt (224) is installed in damping seat arm (222), and its axis normal is in tablet (203).
3, ultrasonic aluminum wire press welder according to claim 2 is characterized in that also comprising card compressing tablet mechanism, and described card compressing tablet mechanism comprises first cam (231), first connecting plate (232), vertical guide rail (233), paw; First cam (231) connects with the bottom of first connecting plate (232); First connecting plate (232) is connected with the sliding seat elasticity of vertical guide rail (233), can slide on the sliding seat of vertical guide rail (233); Fixedly connected with paw in the top of first connecting plate (232).
4, ultrasonic aluminum wire press welder according to claim 3 is characterized in that described card compressing tablet mechanism also comprises second cam (241), second connecting plate (242), cross slide way (243), plate (245); Second cam (241) connects with the bottom of second connecting plate (242); Second connecting plate (242) is connected with the sliding seat elasticity of cross slide way (243), can slide on the sliding seat of cross slide way (243); Fixedly connected with plate (245) in the top of second connecting plate (242).
5,, it is characterized in that also comprising two and be installed in the feeding device (6) that mainframe box (1) is gone up film conveying device (5) both sides according to claim 1,2,3 or 4 any described ultrasonic aluminum wire press welders of claim; Described feeding device (6) comprises hopper (110), first horizontal transport agency (113), second horizontal transport agency (114), vertical lifting mechanism (130), magazine (120) and disclose the sheet device; One side opening of hopper (110), opposite side are installed and are disclosed the sheet device, and vertical lifting mechanism (130) is installed at the rear portion; First horizontal transport agency (113) and second horizontal transport agency (114) are installed respectively on the base plate (112) of hopper (110) and the dividing plate (111).
6, ultrasonic aluminum wire press welder according to claim 5 is characterized in that disclosing the sheet device and comprises and disclose sheet motor (141), crank (142), follower lever (143), line slideway (145), push jack piece (144); The rotating shaft of disclosing sheet motor (141) is connected with follower lever (143) by crank (142); Push jack piece (144) is made of two orthogonal two straight-bars, has groove (146) on one of them straight-bar, and the upper end of follower lever (143) is stretched out by this groove (146).
7,, it is characterized in that also comprising that being installed on the mainframe box (1) is the turntable (10) in the center of circle with the soldering tip chopper according to claim 1,2,3 or 4 any described ultrasonic aluminum wire press welders of claim; Be carved with scale on the chassis of turntable (10), two-dimensional electricity driving displacement platform (3) is installed on the turntable (10).
CNU2008200723458U 2008-08-27 2008-08-27 Ultrasonic aluminum thread pressure welding machine Expired - Fee Related CN201274287Y (en)

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Application Number Priority Date Filing Date Title
CNU2008200723458U CN201274287Y (en) 2008-08-27 2008-08-27 Ultrasonic aluminum thread pressure welding machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014924A (en) * 2014-05-06 2014-09-03 长春光华微电子设备工程中心有限公司 Fully-automatic aluminum wire press welder wire feeding device
CN105772930A (en) * 2016-05-06 2016-07-20 博艳萍 Vibration attenuation universal wheel of ultrasonic thick aluminum wire press welder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104014924A (en) * 2014-05-06 2014-09-03 长春光华微电子设备工程中心有限公司 Fully-automatic aluminum wire press welder wire feeding device
CN104014924B (en) * 2014-05-06 2016-01-06 长春光华微电子设备工程中心有限公司 Full-automatic aluminum thread pressure welding machine is for silk device
CN105772930A (en) * 2016-05-06 2016-07-20 博艳萍 Vibration attenuation universal wheel of ultrasonic thick aluminum wire press welder

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