CN106102441A - The broken wire detection system of a kind of bonding equipment and method - Google Patents
The broken wire detection system of a kind of bonding equipment and method Download PDFInfo
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- CN106102441A CN106102441A CN201610646909.3A CN201610646909A CN106102441A CN 106102441 A CN106102441 A CN 106102441A CN 201610646909 A CN201610646909 A CN 201610646909A CN 106102441 A CN106102441 A CN 106102441A
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- 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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
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Abstract
The invention discloses a kind of broken wire detection system and the method for bonding equipment.Wherein, the broken wire detection system of described bonding equipment includes host computer, ACS motion controller and burn out detection module, detected bonding wire state by burn out detection module and export corresponding level signal to ACS controller, described level signal is fed back to host computer by ACS controller, judged whether bonding equipment breaks by host computer according to described level signal, and export control instruction control welding process, bonding wire state can be detected by burn out detection module and export corresponding level signal, can determine whether whether current bonding equipment occurs in that broken string situation according to described level signal, the problem that cannot find broken string when solving current bonding wire the very first time, improve reliability and the yield of product of bonding equipment.
Description
Technical field
The present invention relates to bonding equipment technical field, particularly to broken wire detection system and the method for a kind of bonding equipment.
Background technology
Gold ball welding apparatus be integrate precision optical machinery, automatically control, image recognition, optics, the modern times of thermocompression bonding etc.
Change high-tech package equipment for micro-electron, draw between operation chips pad and outside framework after being mainly used in LED or IC manufacturing
The welding of line.
In current existing gold wire ball bonding equipment, it is impossible to solder skip and broken string are detected, cause welding process produces
Solder skip, stick up line, break, lose the problems such as line and cannot be found by machine operations person the very first time, affect bonding equipment reliability and
Welding finished product quality.
Thus prior art could be improved and improve.
Summary of the invention
In place of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide the burn out detection system of a kind of bonding equipment
System and method, can detect bonding wire state by burn out detection module and export corresponding level signal, according to described level signal
Can determine whether whether current bonding equipment occurs in that broken string situation, the problem that broken string cannot be found when solving current bonding wire the very first time,
Improve reliability and the quality of welding product of bonding equipment.
In order to achieve the above object, this invention takes techniques below scheme:
The broken wire detection system of a kind of bonding equipment, including host computer, ACS motion controller and burn out detection module, is examined by broken string
Survey module detection bonding wire state and export corresponding level signal and to ACS controller, ACS controller, described level signal is fed back
To host computer, host computer judge whether bonding equipment breaks according to described level signal, and export control instruction control weld into
Journey.
In the broken wire detection system of described bonding equipment, described burn out detection module includes switch control unit, detection ratio
Relatively unit and compare output unit, the switching command change detection pattern that switch control unit exports according to host computer, by detecting
Comparing unit detects bonding wire state when ball-shaped welded and wedge bonding respectively, and exports corresponding level signal to comparing output
Unit, is fed back to ACS controller by comparing output unit by described level signal.
In the broken wire detection system of described bonding equipment, host computer is according to level signal when ball-shaped welded and wedge bonding
Judge whether bonding equipment breaks, the output low level when ball-shaped welded, and during wedge bonding, level judges when switching from low to high
For not breaking, the control instruction of output resume welding；Otherwise being judged as having broken, output stops the control instruction of welding.
In the broken wire detection system of described bonding equipment, described switch control unit include the first resistance, the second resistance,
Three resistance, the first diode, the first light emitting diode, the first metal-oxide-semiconductor, the first optocoupler and relay, the one of described first resistance
End connects the 4th end of communication interface of ACS controller, and the other end of described first resistance connects the negative pole and the of the first diode
The positive pole of one light emitting diode；The positive pole of described first diode connects the 5th end and first light of the communication interface of ACS controller
2nd end of coupling；The negative pole of described first light emitting diode connects the 1st end of the first optocoupler；One end of described second resistance connects
Feeder ear, the other end of described second resistance connect the 4th end of the first optocoupler, the grid of the first metal-oxide-semiconductor, also by the 3rd electricity
Resistance connects the 3rd end and the ground of the first optocoupler；The drain electrode of described first metal-oxide-semiconductor connects the 2nd end of relay, described first metal-oxide-semiconductor
Source ground；Described relay the 1st end connect feeder ear, the 3rd end of described relay connects the first test point, described in continue
4th end of electrical equipment connects the second test point, and the 5th end of described relay connects detection comparing unit.
In the broken wire detection system of described bonding equipment, described detection comparing unit include the 4th resistance, the 5th resistance,
Six resistance, the 7th resistance, the 8th resistance, the 9th resistance and the tenth resistance；One end of described 4th resistance connects the 5th of relay
End, the other end of described 4th resistance connects the 3rd test point, one end of the 5th resistance, connects more defeated also by the tenth resistance
Go out unit；The other end of described 5th resistance connects feeder ear by the 6th resistance, also by the 7th resistance eutral grounding；Described 8th
One end of resistance connects feeder ear, and the other end of described 8th resistance connects the 4th test point and compares output unit, also by
9th resistance eutral grounding.
In the broken wire detection system of described bonding equipment, the described output unit that compares includes the 11st resistance, the 12nd electricity
Resistance, the 13rd resistance, the first electric capacity, the second optocoupler and comparator；One end of described 11st resistance connect the 5th test point, the
One end of 12 resistance and the 1OUT end of comparator, the other end of described 11st resistance connects the 1st end of the second optocoupler；Described
The other end of the 12nd resistance connects feeder ear, one end of the first electric capacity and the VCC+ end of comparator；Described first electric capacity another
One end connects the 2nd end of the second optocoupler；3rd end of described second optocoupler connects the 7th end of the communication interface of ACS controller, institute
State the 4th end of the second optocoupler by the tenth three-terminal link feeder ear；The 1IN-end of described comparator connects the 4th test point, described
The 1IN+ of comparator connects the 3rd test point, the VCC-end ground connection of described comparator.
In the broken wire detection system of described bonding equipment, also include that power isolation circuit, described power isolation circuit include
Isolating transformer, protective tube, the 14th resistance, electrochemical capacitor, the second diode and the second light emitting diode；Described isolation transformation
The Vin+ end of device connects feeder ear, the Vin-end ground connection of described isolating transformer, and the Vo+ end of described isolating transformer is by insurance
Pipe connects feeder ear, the 6th test point and one end of the 14th resistance, and the Vo-end of described isolating transformer connects electrochemical capacitor
Negative pole, the 7th test point and ground；The positive pole of described electrochemical capacitor connects the 6th test point；The other end of described 14th resistance leads to
Cross the second light emitting diode ground connection；The positive pole of described second diode connects the 7th test point, the negative pole of described second diode
Connect the 6th test point.
The wire break detection method of a kind of bonding equipment, it comprises the steps:
A, by burn out detection module detection bonding wire state export corresponding level signal to ACS controller；
B, by ACS controller, described level signal is fed back to host computer；
C, judged whether bonding equipment breaks by host computer according to described level signal, and export control instruction and control welding process.
In the wire break detection method of described bonding equipment, described step A includes step:
The switching command change detection pattern that A1, switch control unit export according to host computer；
A2, bonding wire state when being detected ball-shaped welded and wedge bonding respectively by detection comparing unit, and export corresponding level
Signal is to comparing output unit；
A3, compare output unit described level signal is fed back to ACS controller.
In the wire break detection method of described bonding equipment, described step C specifically includes:
The output low level when ball-shaped welded, and when during wedge bonding, level switches from low to high, host computer judges that bonding equipment is not
Broken string, the control instruction of output resume welding；Otherwise being judged as having broken, output stops the control instruction of welding.
Compared to prior art, in the broken wire detection system of the bonding equipment that the present invention provides and method, described bonding equipment
Broken wire detection system includes host computer, ACS motion controller and burn out detection module, burn out detection module detect bonding wire state
And exporting corresponding level signal to ACS controller, described level signal is fed back to host computer by ACS controller, by host computer
Judge whether bonding equipment breaks according to described level signal, and export control instruction control welding process, burn out detection can be passed through
Module detection bonding wire state also exports corresponding level signal, can determine whether whether current bonding equipment occurs according to described level signal
Broken string situation, the problem that cannot find broken string when solving current bonding wire the very first time, improves reliability and the product of bonding equipment
Yield.
Accompanying drawing explanation
The structured flowchart of the broken wire detection system of the bonding equipment that Fig. 1 provides for the present invention.
Bonding wire schematic diagram in the wire break detection method of the bonding equipment that Fig. 2 provides for the present invention.
The circuit diagram of the broken wire detection system interrupt line detection module of the bonding equipment that Fig. 3 provides for the present invention.
The circuit diagram of power isolation circuit in the broken wire detection system of the bonding equipment that Fig. 4 provides for the present invention.
The flow chart of the wire break detection method of the bonding equipment that Fig. 5 provides for the present invention.
Detailed description of the invention
The broken wire detection system of the bonding equipment that the present invention provides and method can detect bonding wire state by burn out detection module
And export corresponding level signal, can determine whether whether current bonding equipment occurs in that broken string situation according to described level signal, solve
The problem that cannot find broken string at present during bonding wire the very first time, improves reliability and the quality of welding product of bonding equipment.
For making the purpose of the present invention, technical scheme and effect clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention further describes.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Referring to Fig. 1, the broken wire detection system of the bonding equipment that the present invention provides includes host computer 10, ACS motion controller
20 and burn out detection module 30, burn out detection module 30 detect bonding wire state and export corresponding level signal and move to ACS
Controller 20, described level signal is fed back to host computer 10 by ACS motion controller 20, host computer 10 believe according to described level
Number judge whether bonding equipment breaks, and export control instruction and control welding process.Believed by the corresponding level of bonding wire State-output
Number, can determine whether whether current bonding equipment occurs in that the problems such as broken string, solder skip according to described level signal, when solving current bonding wire without
The method very first time finds the drawback of broken string, improves reliability and the yield of product of bonding equipment.
Wherein, described burn out detection module 30 includes switch control unit 301, detection comparing unit 302 and compares output
Unit 303, the switching command change detection pattern that switch control unit 301 exports according to host computer 10, by detection comparing unit
302 detect bonding wire state when ball-shaped welded and wedge bonding respectively, and export corresponding level signal to comparing output unit
303, by comparing output unit 303, described level signal is fed back to ACS motion controller 20.When host computer 10 output detections refers to
When making, switch control unit 301 switches to start to detect pattern, now detection comparing unit 302 detect respectively ball-shaped welded with
Bonding wire state during wedge bonding, and export corresponding level signal, see also Fig. 2, during bonding wire, include that two were welded
Journey, first burns after ball completes and gold thread is connected with chip bonding pad (referred to as one weldering), afterwards gold thread is pulled to outside framework and welds
Connecing (referred to as two welderings), break gold thread after having welded, detection comparing unit 302 detects a weldering and the bonding wire shape of two welderings respectively
State, exports corresponding level signal, it is ensured that occur in that in whole wire bonding process that breakpoint or the solder skip situation energy very first time detect,
Ensure the comprehensive of detection.
Specifically, according to level signal when ball-shaped welded and wedge bonding, described host computer 10 judges whether bonding equipment breaks
Line, the output low level when ball-shaped welded, and during wedge bonding, level is judged as not breaking when switching from low to high, output resume
The control instruction of welding；Otherwise being judged as having broken, output stops the control instruction of welding.
High level can be exported when broken string situation i.e. occurs, output low level during broken string does not occurs, therefore will during ball-shaped welded
Gold thread is soldered to chip bonding pad, now output low level, illustrates not break, afterwards during wedge bonding, before breaking gold thread
Level keeps low level, and after breaking gold thread, level switches from low to high, illustrates that gold thread does not break when being pulled to outside framework,
And normally break after having welded, host computer 10 is low level receiving a weldering, and two welderings switch to high level for low level
During signal, it is judged that now break, the control instruction of output resume welding, otherwise it is judged as having broken, output stops weldering
The control instruction connect.Wherein when the level signal of a weldering is high level, being directly judged as having broken, output stops the control of welding
System instruction；When the level signal of a weldering is low level, and when the level signal of two welderings does not change in Preset Time, this
Shi Keneng bis-weldering makes a mistake when breaking gold thread, and same output stops the control instruction of welding.
Further, see also Fig. 3, described switch control unit 301 include the first resistance R1, the second resistance R2,
3rd resistance R3, the first diode D1, first LED the 1, first metal-oxide-semiconductor Q1, the first optocoupler U1 and relay K 1,
One end of described first resistance R1 connects the 4th end of communication interface P1 of ACS motion controller 20, and described first resistance R1's is another
One end connects negative pole and the positive pole of the first LED 1 of the first diode D1；The positive pole of described first diode D1 is even
Connect the 5th end and the 2nd end of the first optocoupler U1 of communication interface P1 of ACS motion controller 20；Described first light emitting diode
The negative pole of LED1 connects the 1st end of the first optocoupler U1；One end of described second resistance R2 connects feeder ear, described second resistance R2
The other end connect the 4th end of the first optocoupler U1, the grid of the first metal-oxide-semiconductor Q1, connect the first light also by the 3rd resistance R3
3rd end of coupling U1 and ground；The drain electrode of described first metal-oxide-semiconductor Q1 connects the 2nd end of relay K 1, the source of described first metal-oxide-semiconductor Q1
Pole ground connection；Described relay K 1 the 1st end connect feeder ear, the 3rd end of described relay K 1 connects the first test point, described in continue
4th end of electrical equipment K1 connects the second test point, the 5th end connection detection comparing unit 302 of described relay K 1, and described first
Metal-oxide-semiconductor Q1 is NMOS tube, the relay K 1 that described relay K 1 can use model to be HGJM-5111-T00, described first optocoupler
The optocoupler that U1 can use model to be PC817, may be used without other relay K 1 with identical function and optocoupler, present invention certainly
Contrast is not construed as limiting.The switching command sent according to host computer 10 controls the switching of relay K 1, thus realizes detection pattern
Switching, can realize the process of burn out detection according to practical situation.
Described detection comparing unit 302 include the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7,
Eight resistance R8, the 9th resistance R9 and the tenth resistance R10；One end of described 4th resistance R4 connects the 5th end of relay K 1, described
The other end of the 4th resistance R4 connects the 3rd test point, one end of the 5th resistance R5, connects more defeated also by the tenth resistance R10
Go out unit 303；The other end of described 5th resistance R5 connects feeder ear by the 6th resistance R6, connects also by the 7th resistance R7
Ground；One end of described 8th resistance R8 connects feeder ear, and the other end of described 8th resistance R8 connects the 4th test point and compares
Output unit 303, also by the 9th resistance R9 ground connection.Wherein the 3rd test point is the input voltage of detection comparing unit 302, the
Voltage is compared in four test point inputs, and two-way voltage is input to compare output unit 303, is fed back accordingly by comparing output unit 303
Level signal.
Described compare output unit 303 include the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, first
Electric capacity C1, the second optocoupler U2 and comparator A1；One end of described 11st resistance R11 connects the 5th test point, the 12nd resistance
One end of R12 and the 1OUT end of comparator A1, the other end of described 11st resistance R11 connects the 1st end of the second optocoupler U2；Institute
The other end stating the 12nd resistance R12 connects feeder ear, one end of the first electric capacity C1 and the VCC+ end of comparator A1；Described first
The other end of electric capacity C1 connects the 2nd end of the second optocoupler U2；3rd end of described second optocoupler U2 connects ACS motion controller 20
The 7th end of communication interface P1, the 4th end of described second optocoupler U2 passes through the tenth three-terminal link feeder ear；Described comparator A1
1IN-end connect the 4th test point, the 1IN+ of described comparator A1 connects the 3rd test point, the VCC-end of described comparator A1
Ground connection.Two-way voltage is exported the 1IN-end to comparator A1 and 1IN+ end by detection comparing unit 302, defeated by comparator A1 afterwards
Go out corresponding level signal to the second optocoupler U2, by the second optocoupler U2, described level signal is fed back to ACS motion controller
20, isolation input signal and output signal, improve the capacity of resisting disturbance of signal.The model of described comparator A1 is LM393, described
The model of the second optocoupler U2 is PC817, certainly may be used without other comparator A1 with identical function and the second optocoupler U2, this
This is not construed as limiting by invention.
Further, the broken wire detection system of the bonding equipment that the present invention provides also includes power isolation circuit, joins the most in the lump
Read Fig. 4, described power isolation circuit include isolating transformer T1, protective tube F1, the 14th resistance R14, electrochemical capacitor C2, second
Diode D2 and the second LED 2；The Vin+ end of described isolating transformer T1 connects feeder ear, described isolation transformation
The Vin-end ground connection of device T1, the Vo+ end of described isolating transformer T1 connects feeder ear, the 6th test point and the by protective tube F1
One end of 14 resistance R14, the Vo-end of described isolating transformer T1 connects the negative pole of electrochemical capacitor C2, the 7th test point and ground；
The positive pole of described electrochemical capacitor C2 connects the 6th test point；The other end of described 14th resistance R14 passes through the second light-emitting diodes
Pipe LED2 ground connection；The positive pole of described second diode D2 connects the 7th test point, and the negative pole of described second diode D2 connects the
Six test points, carry out circuit insulation blocking by power isolation circuit to broken wire detection system, improve system operational security, institute
The model stating isolating transformer T1 is 24VDC-24VDC, certainly may be used without other isolating transformer T1 with identical function,
This is not construed as limiting by the present invention.
The present invention correspondingly provides the wire break detection method of a kind of bonding equipment, as it is shown in figure 5, the broken string inspection of described bonding equipment
Survey method comprises the steps:
S100, by burn out detection module detection bonding wire state export corresponding level signal to ACS controller；
S200, by ACS controller, described level signal is fed back to host computer；
S300, judged whether bonding equipment breaks by host computer according to described level signal, and export control instruction control to weld into
Journey.
By the corresponding level signal of bonding wire State-output, can determine whether whether current bonding equipment goes out according to described level signal
Show the problem such as broken string, solder skip, the drawback of broken string when solving current bonding wire, cannot have been found the very first time, improve the reliable of bonding equipment
Property and the yield of product.
Further, described step S100 includes:
The switching command change detection pattern that S101, switch control unit export according to host computer；
S102, bonding wire state when being detected ball-shaped welded and wedge bonding respectively by detection comparing unit, and export corresponding electricity
Ordinary mail number is to comparing output unit；
S103, compare output unit described level signal is fed back to ACS controller.
Described step S300 specifically includes: the output low level when ball-shaped welded, and during wedge bonding level is from low to high
During switching, host computer judges that bonding equipment does not breaks, the control instruction of output resume welding；Otherwise being judged as having broken, output stops
The only control instruction of welding.
In order to be better understood from technical scheme, below in conjunction with Fig. 1 to Fig. 4, lift specific embodiment to invention
The regulation process of the dynamic regulator of numerical control is described in detail:
In welding process, after burning ball completes, host computer 10 sends switching command, controls movable contact the 3rd end-grain cutting of relay K 1
Shift to BSD end, i.e. close with relay K 1 the 5th end, proceed by burn out detection.
When gold thread unwelded to chip time detection comparing unit 302 input high level to the input of comparator A1, now
Comparator A1 output high level is to ACS motion controller 30；
When gold thread burns ball and successfully welded to (this process is a weldering) after chip, detection comparing unit 302 input low level to than
The relatively input of device A1；
Afterwards gold thread is pulled to outside framework and carries out two welderings (i.e. wedge bonding), successfully welded complete after break gold thread.Two weldering processes
In, until before breaking gold thread, comparator A1 is output as low level；After breaking gold thread, comparator A1 output high level moves to ACS
Controller 30, relay K 1 switches to EFO_GND end, the i.e. movable contact of relay K 1 that is the 3rd end and closes with relay the 4th end.
Host computer 10 is by the level signal of ACS motion controller 30 feedback: a low level when weldering and bracing wire arc, two welderings
To when breaking gold thread, level change from low to high judges whether solder joint welds normally, thus after exporting control instruction control
Continuous welding process.
In sum, in the broken wire detection system of the bonding equipment that the present invention provides and method, the broken string inspection of described bonding equipment
Examining system includes host computer, ACS motion controller and burn out detection module, burn out detection module detect bonding wire state and export
Described level signal is fed back to host computer to ACS controller, ACS controller, by host computer according to institute by corresponding level signal
State level signal and judge whether bonding equipment breaks, and export control instruction control welding process, can be examined by burn out detection module
Survey bonding wire state and export corresponding level signal, can determine whether whether current bonding equipment occurs in that broken string according to described level signal
Situation, the problem that cannot find broken string when solving current bonding wire the very first time, improves reliability and the yield of product of bonding equipment.
It is understood that for those of ordinary skills, can be according to technical scheme and send out
Bright design in addition equivalent or change, and all these change or replace the guarantor that all should belong to appended claims of the invention
Protect scope.
Claims (10)
1. a broken wire detection system for bonding equipment, including host computer and ACS motion controller, it is characterised in that also include breaking
Line detection module, is detected bonding wire state by burn out detection module and exports corresponding level signal to ACS controller, ACS control
Described level signal is fed back to host computer by device, host computer judge whether bonding equipment breaks according to described level signal, and defeated
Go out control instruction and control welding process.
The broken wire detection system of bonding equipment the most according to claim 1, it is characterised in that described burn out detection module includes
Switch control unit, detect comparing unit and compare output unit, the switching command that switch control unit exports according to host computer
Change detection pattern, is detected bonding wire state when ball-shaped welded and wedge bonding respectively by detection comparing unit, and exports corresponding
Level signal to comparing output unit, by comparing output unit, described level signal is fed back to ACS controller.
The broken wire detection system of bonding equipment the most according to claim 2, it is characterised in that host computer according to ball-shaped welded and
Level signal during wedge bonding judges whether bonding equipment breaks, the output low level when ball-shaped welded, and electricity during wedge bonding
It is judged as not breaking during flat switching from low to high, the control instruction of output resume welding；Otherwise being judged as having broken, output stops
The control instruction of welding.
The broken wire detection system of bonding equipment the most according to claim 2, it is characterised in that described switch control unit includes
First resistance, the second resistance, the 3rd resistance, the first diode, the first light emitting diode, the first metal-oxide-semiconductor, the first optocoupler and relay
Device, one end of described first resistance connects the 4th end of the communication interface of ACS controller, and the other end of described first resistance connects
The negative pole of the first diode and the positive pole of the first light emitting diode；The positive pole of described first diode connects the logical of ACS controller
5th end of letter interface and the 2nd end of the first optocoupler；The negative pole of described first light emitting diode connects the 1st end of the first optocoupler；Institute
The one end stating the second resistance connects feeder ear, and the other end of described second resistance connects the 4th end of the first optocoupler, a MOS
The grid of pipe, the 3rd end connecting the first optocoupler also by the 3rd resistance and ground；The drain electrode of described first metal-oxide-semiconductor connects relay
The 2nd end, the source ground of described first metal-oxide-semiconductor；1st end of described relay connects feeder ear, the 3rd end of described relay
Connecting the first test point, the 4th end of described relay connects the second test point, and the 5th end of described relay connects detection and compares
Unit.
The broken wire detection system of bonding equipment the most according to claim 4, it is characterised in that described detection comparing unit includes
4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance and the tenth resistance；Described 4th resistance
One end connect the 5th end of relay, the other end of described 4th resistance connects the 3rd test point, one end of the 5th resistance, also
Connected by the tenth resistance and compare output unit；The other end of described 5th resistance connects feeder ear by the 6th resistance, the most logical
Cross the 7th resistance eutral grounding；One end of described 8th resistance connects feeder ear, and the other end of described 8th resistance connects the 4th test
Put and compare output unit, also by the 9th resistance eutral grounding.
The broken wire detection system of bonding equipment the most according to claim 5, it is characterised in that the described output unit that compares includes
11st resistance, the 12nd resistance, the 13rd resistance, the first electric capacity, the second optocoupler and comparator；The one of described 11st resistance
End connects the 5th test point, one end of the 12nd resistance and the 1OUT end of comparator, and the other end of described 11st resistance connects
1st end of the second optocoupler；The other end of described 12nd resistance connects feeder ear, one end of the first electric capacity and the VCC+ of comparator
End；The other end of described first electric capacity connects the 2nd end of the second optocoupler；3rd end of described second optocoupler connects ACS controller
7th end of communication interface, the 4th end of described second optocoupler passes through the tenth three-terminal link feeder ear；The 1IN-end of described comparator
Connecting the 4th test point, the 1IN+ of described comparator connects the 3rd test point, the VCC-end ground connection of described comparator.
The broken wire detection system of bonding equipment the most according to claim 1, it is characterised in that also include power isolation circuit,
Described power isolation circuit includes isolating transformer, protective tube, the 14th resistance, electrochemical capacitor, the second diode and second
Optical diode；The Vin+ end of described isolating transformer connects feeder ear, the Vin-end ground connection of described isolating transformer, described isolation
The Vo+ end of transformator connects feeder ear, the 6th test point and one end of the 14th resistance, described isolating transformer by protective tube
Vo-end connect the negative pole of electrochemical capacitor, the 7th test point and ground；The positive pole of described electrochemical capacitor connects the 6th test point；Institute
State the other end of the 14th resistance by the second light emitting diode ground connection；The positive pole of described second diode connects the 7th test
Point, the negative pole of described second diode connects the 6th test point.
8. the wire break detection method of a bonding equipment, it is characterised in that comprise the steps:
A, by burn out detection module detection bonding wire state export corresponding level signal to ACS controller；
B, by ACS controller, described level signal is fed back to host computer；
C, judged whether bonding equipment breaks by host computer according to described level signal, and export control instruction and control welding process.
The wire break detection method of bonding equipment the most according to claim 8, it is characterised in that described step A includes step:
The switching command change detection pattern that A1, switch control unit export according to host computer；
A2, bonding wire state when being detected ball-shaped welded and wedge bonding respectively by detection comparing unit, and export corresponding level
Signal is to comparing output unit；
A3, compare output unit described level signal is fed back to ACS controller.
The wire break detection method of bonding equipment the most according to claim 9, it is characterised in that described step C specifically includes:
The output low level when ball-shaped welded, and when during wedge bonding, level switches from low to high, host computer judges that bonding equipment is not
Broken string, the control instruction of output resume welding；Otherwise being judged as having broken, output stops the control instruction of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646909.3A CN106102441A (en) | 2016-08-09 | 2016-08-09 | The broken wire detection system of a kind of bonding equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610646909.3A CN106102441A (en) | 2016-08-09 | 2016-08-09 | The broken wire detection system of a kind of bonding equipment and method |
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| CN106102441A true CN106102441A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610646909.3A Pending CN106102441A (en) | 2016-08-09 | 2016-08-09 | The broken wire detection system of a kind of bonding equipment and method |
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| CN (1) | CN106102441A (en) |
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| CN106735842A (en) * | 2017-03-24 | 2017-05-31 | 上海骄成机电设备有限公司 | A kind of supersonic welder of real-time detection welding quality |
| CN114888499A (en) * | 2022-07-14 | 2022-08-12 | 广东阿达智能装备有限公司 | Dry reed relay protection and drive circuit for wire bonding machine |
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| CN114888499B (en) * | 2022-07-14 | 2022-12-20 | 广东阿达智能装备有限公司 | Dry-reed relay protection and drive circuit for wire bonding machine |
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Application publication date: 20161109 |