CN108645786A - A kind of round wire bond band peel strength detection device and its detection method - Google Patents
A kind of round wire bond band peel strength detection device and its detection method Download PDFInfo
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- CN108645786A CN108645786A CN201810292593.1A CN201810292593A CN108645786A CN 108645786 A CN108645786 A CN 108645786A CN 201810292593 A CN201810292593 A CN 201810292593A CN 108645786 A CN108645786 A CN 108645786A
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 229910052802 copper Inorganic materials 0.000 claims abstract description 60
- 239000010949 copper Substances 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000003466 welding Methods 0.000 claims abstract description 48
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 238000009863 impact test Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of round wire bond band peel strength detection device and its detection method, including：Kazakhstan copper sheet, surface are equipped with a semi-circular grooves, diameter and the measured circle wire bond band diameter matches of the groove, and circle wire bond band is set in groove and is welded with Kazakhstan copper sheet；Copper sheet limiting device is used to limit the position of Kazakhstan copper sheet；Device for measuring force is used to measure the pulling force being applied between round wire bond band and Kazakhstan copper sheet.The present invention compared to the prior art, opens up semi-circular grooves on Kazakhstan copper sheet, and circle wire bond band can coincide with groove welding, circle wire bond band peeling force is measured using device for measuring force, so that the weldability and peel strength to circle wire bond band are effectively and reliably evaluated.
Description
Technical field
The present invention relates to a kind of welding device for detecting performance, and in particular to a kind of round wire bond band peel strength detection device and
Its detection method.
Background technology
Chinese photovoltaic industry association criterion T/CPIA005-2017 and People's Republic of China (PRC) electronics industry standard SJ/
Test method in T11550-2015, uses the welding of welding and Kazakhstan copper sheet, then carries out 180 degree disbonded test, this method
The peel strength test of flat welding suitable for rectangular cross-section is the conventional means for assessing welding solderability.But for
Section is circular round wire bond band, and the above method is not applicable, needs to establish oneself effectively stabilization for the circle wire bond band producer
Test circle standard detecting method of the wire bond with peel strength and corresponding detection means.It is strong in the stripping of existing pancake welding
There is also apparent deficiencies in degree test, first, test equipment uses tensiometer to carry out manually substantially, can only test out maximum stripping
Power, test result is unstable, data record trouble；Second is that find that maximum peeling force cannot reflect welding after practical application comprehensively
Welding performance, such as after logistics and it is long-term when after welding welding after impact resistance it is bad.Therefore market can have there is an urgent need for a kind of
Imitate the means or detection device of stable detection welding synthesis welding performance.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of round wire bond band peel strengths to examine
Survey device and its detection method.
In order to achieve the above objectives, the technical solution adopted by the present invention to solve the technical problems is：A kind of round wire bond band stripping
From intensity detecting device, including：
Kazakhstan copper sheet, surface are equipped with a semi-circular grooves, the diameter of the groove and measured circle wire bond band diameter matches,
Circle wire bond band is set in groove and is welded with Kazakhstan copper sheet；
Copper sheet limiting device is used to limit the position of Kazakhstan copper sheet；
Device for measuring force is used to measure the pulling force being applied between round wire bond band and Kazakhstan copper sheet.
The present invention compared to the prior art, opens up semi-circular grooves on Kazakhstan copper sheet, and circle wire bond band can be welded with groove
It coincide, circle wire bond band peeling force is measured using device for measuring force, so that the weldability and peel strength to circle wire bond band have
Effect is reliably evaluated.
Further, the length of groove is greater than or equal to 100mm on the Kazakhstan copper sheet.
Further, on the Kazakhstan copper sheet groove a diameter of 0.35-0.4mm.
The present invention is compared to the prior art, it can be ensured that circle wire bond band comes into full contact with groove, and trench length, which can ensure that, to be obtained
Take effectively detection sampled data.
Further, the copper sheet limiting device includes pedestal, the pedestal be equipped with placing groove, the width of placing groove with
Kazakhstan copper sheet width matches, and limiting section is equipped in the edge of placing groove on the pedestal.
It using the above preferred scheme, can fast and stable setting Kazakhstan copper sheet.
Further, the pedestal is equipped with the first guide rail, and the first guide rail is equipped with upper limit position block, and upper limit position block is connected to
On the motion bar of first cylinder, upper limit position block bottom is equipped with the escape groove for avoiding round wire bond band.
Using the above preferred scheme, the upper and lower position that can preferably limit Kazakhstan copper sheet, prevents stress from overturning.
Further, further include welding clamping device, the welding clamping device be set to Kazakhstan copper sheet and device for measuring force it
Between, the welding clamping device includes outline border, the first fixture block, the second fixture block, the second cylinder, third cylinder, and the outline border can be slided
The second guide rail being set on the base dynamicly on, third guide rail is equipped in the outline border, first fixture block and the second fixture block can
It being slidably arranged on third guide rail, first fixture block is connect with the second cylinder, and second fixture block is connect with third cylinder,
The outline border is connect with device for measuring force, and first fixture block and the opposite face of the second fixture block are equipped with the long folder for welding to be clamped
Hold slot.
Using the above preferred scheme, circle wire bond band can be accommodated and is pulled with fast and stable.
Further, further include driving device, the driving device includes linear reciprocating motor, guide pad, runner, deceleration
Motor, the linear reciprocating motor are slidably disposed on the 4th guide rail on pedestal, the linear reciprocating motor output end
It is connect with device for measuring force, the guide pad is fixed on the top of linear reciprocating motor, and guide pad is equipped with strip guide groove, turns
Wheel is equipped with the pulley eccentric with roller centre phase, and the pulley is arranged in guide groove, and the decelerating motor is solid by holder
It is scheduled on pedestal and runner can be driven to rotate.
Using the above preferred scheme, linear reciprocating motor can provide the high-frequency reciprocating movement of small stroke, for realizing
To the high frequency pull of circle wire bond band；Decelerating motor drives linear reciprocating motor big stroke movement on the 4th guide rail, for realizing
To circle measurement of the wire bond with peeling force；The double check to welding impact resistance and peel strength may be implemented, it can to circle wire bond band
Weld the evaluation of performance more fully, it is ensured that circle wire bond band performance is stablized.
Further, the outline border is popped one's head in equipped with grating detection, and the second guide rail is equipped with grating scale, the device for measuring force
Further include a processing and control element (PCE) for digital force-measuring device, which receives the outer of the detection of grating detection probe
The pulling force signal of frame displacement signal and digital device for measuring force, exports the relation curve of pulling force and displacement after processing.
Using the above preferred scheme, the stripping that can easily obtain different location at round wire bond welding automatically is strong
Degree, readily available mean peel strength data.
A kind of round wire bond band peel strength detection method, includes the following steps：
Step 1, it takes a surface to have the Kazakhstan copper sheet of polishing semi-circular grooves, its groove is carried out clearly with absolute ethyl alcohol
It is clean, it is used in combination cold wind to dry up；
Step 2, length is taken to be greater than or equal to the circle wire bond band of 100mm, it is 0.15g/ml- to be dipped in mass concentration
1min in the rosin ethanol solution of 0.30g/ml, pastes 3s on filter paper after taking-up, by circle wire bond band manual welding in Kazakhstan copper sheet
Groove in, the welding temperature of solder containing pb is 340 DEG C ± 5 DEG C, and the welding temperature of lead-free solder is 370 DEG C ± 5 DEG C；
Step 3, by after welding Kazakhstan copper sheet and circle wire bond band carry out 180 ° of peel test, when test circle wire bond band with
The peel distance of Kazakhstan copper sheet is not less than 20mm；
Step 4, the length of relatively stable curved section and stationary curve section in stripping curve is taken to be greater than or equal to 15mm, meter
Calculate mean peel strength.
Using the above preferred scheme, the peel strength of round wire bond band effectively can be accurately detected.
Further, further include impact test step between above-mentioned steps 2 and step 3：Only start linear reciprocating motor
And by its travel settings be 1mm, by after welding Kazakhstan copper sheet and circle wire bond band carry out 0 ° of traction and make high frequency stretching back and forth
Impact.
Using the above preferred scheme, the peel strength after round wire bond band tolerance high-frequency percussion can be detected, after raising
The endurance quality of continuous product.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the present invention；
Fig. 2 is to circle be pulled direction schematic diagram of the wire bond with reciprocating impact；
Fig. 3 is the direction schematic diagram that is pulled detected with peel strength to circle wire bond.
The title of number and the corresponding component represented by letter in figure：
1- Kazakhstan copper sheets；11- grooves；2- copper sheet limiting devices；21- pedestals；211- placing grooves；212- limiting sections；22-
One guide rail；23- upper limit position blocks；231- escape groove；The first cylinders of 24-；3- welding clamping devices；31- outline borders；The first fixture blocks of 32-；
321- long holding tanks；The second fixture blocks of 33-；The second cylinders of 34-；35- third cylinders；The second guide rails of 36-；37- third guide rails；4- is surveyed
Power apparatus；5- driving devices；51- linear reciprocating motors；52- guide pads；521- guide grooves；53- runners；531- pulleys；54- subtracts
Speed motor；The 4th guide rails of 55-；6- justifies wire bond band.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-3, a kind of round wire bond band peel strength detection device, including：
Kazakhstan copper sheet 1, surface are equipped with a semi-circular grooves 11, diameter and 6 diameter of measured circle wire bond band of groove 11
Match, circle wire bond band 6 is set in groove 11 and is welded with Kazakhstan copper sheet 1；
Copper sheet limiting device 2 is used to limit the position of Kazakhstan copper sheet 1；
Device for measuring force 4 is used to measure the pulling force being applied between round wire bond band 6 and Kazakhstan copper sheet 1.
It is using the advantageous effect of above-mentioned technical proposal：Semi-circular grooves 11, circle wire bond band 6 are opened up on Kazakhstan copper sheet 1
It can weld and coincide with groove 11,6 peeling force of circle wire bond band be measured using device for measuring force 4, to the weldability to circle wire bond band 6
It is effectively and reliably evaluated with peel strength.
In other embodiments of the present invention, the length of groove 11 is greater than or equal to 100mm on Kazakhstan copper sheet 1；It breathes out
A diameter of 0.35-0.4mm of groove 11 on family name's copper sheet 1.It is using the advantageous effect of above-mentioned technical proposal：It can ensure round wire bond
Band 6 comes into full contact with groove 11, and 11 length of groove can ensure that acquisition effectively detection sampled data.
In other embodiments of the present invention, copper sheet limiting device 2 includes pedestal 21, and pedestal 21 is equipped with placing groove
211, width and 1 width of Kazakhstan copper sheet of placing groove 211 match, and limiting section is equipped in the edge of placing groove 211 on pedestal 21
212.It is using the advantageous effect of above-mentioned technical proposal：It can fast and stable setting Kazakhstan copper sheet 1.
In other embodiments of the present invention, pedestal 21 is equipped with the first guide rail 22, and the first guide rail 22 is equipped with upper
Limited block 23, upper limit position block 23 are connected on the motion bar of the first cylinder 24, and 23 bottom of upper limit position block is equipped with for avoiding round silk
The escape groove 231 of welding 6.It is using the advantageous effect of above-mentioned technical proposal：The upper and lower of Kazakhstan copper sheet 1 can preferably be limited
Position prevents stress from overturning.
Further include welding clamping device 3 in other embodiments of the present invention, welding clamping device 3 is set to Kazakhstan
Between copper sheet 1 and device for measuring force 4, welding clamping device 3 includes outline border 31, the first fixture block 32, the second fixture block 33, the second cylinder
34, third cylinder 35, outline border 31 are slidably disposed on 36 on the second guide rail on pedestal 21, and third guide rail is equipped in outline border 31
37, the first fixture block 32 and the second fixture block 33 are slidably disposed on third guide rail 37, and the first fixture block 32 and the second cylinder 34 connect
It connects, the second fixture block 33 is connect with third cylinder 35, and outline border 31 is connect with device for measuring force 4,33 phase of the first fixture block 32 and the second fixture block
To face be equipped with long holding tank 321 for welding to be clamped.It is using the advantageous effect of above-mentioned technical proposal：It can be quickly steady
It is fixed that circle wire bond band 6 is accommodated and pulled.
Further include driving device 5 in other embodiments of the present invention, driving device 5 includes linear reciprocating motor
51, guide pad 52, runner 53, decelerating motor 54, linear reciprocating motor 51 are slidably disposed in the 4th guide rail on pedestal 21
On 55,51 output end of linear reciprocating motor is connect with device for measuring force 4, and guide pad 52 is fixed on the top of linear reciprocating motor 51,
Guide pad 52 is equipped with strip guide groove 521, and runner 53 is equipped with the pulley 531 eccentric with roller centre phase, and pulley 531 is set
It sets in guide groove 521, decelerating motor 54 is fixed by the bracket on pedestal 21 and runner 53 can be driven to rotate.Using above-mentioned skill
The advantageous effect of art scheme is：Linear reciprocating motor 51 can provide the high-frequency reciprocating movement of small stroke, for realizing to circle silk
The high frequency of welding 6 pulls；Decelerating motor 54 drives the big stroke movement on the 4th guide rail 55 of linear reciprocating motor 51, for realizing
To circle measurement of the wire bond with peeling force；The double check to welding impact resistance and peel strength may be implemented, it can to circle wire bond band
Weld the evaluation of performance more fully, it is ensured that circle wire bond band performance is stablized.
In other embodiments of the present invention, outline border 31 is popped one's head in equipped with grating detection, and the second guide rail 36 is equipped with
Grating scale, device for measuring force 4 are digital force-measuring device, further include a processing and control element (PCE), which receives grating inspection
The pulling force signal for knowing the outline border displacement signal and digital device for measuring force of the detection of probe, exports the relationship of pulling force and displacement after processing
Curve.It is using the advantageous effect of above-mentioned technical proposal：Different location at round wire bond welding can be easily obtained automatically
Peel strength, readily available mean peel strength data.
A kind of round wire bond band peel strength detection method, includes the following steps：
Step 1, it takes a surface to have the Kazakhstan copper sheet of polishing semi-circular grooves, its groove is carried out clearly with absolute ethyl alcohol
It is clean, it is used in combination cold wind to dry up；
Step 2, length is taken to be greater than or equal to the circle wire bond band of 100mm, it is 0.15g/ml- to be dipped in mass concentration
1min in the rosin ethanol solution of 0.30g/ml, pastes 3s on filter paper after taking-up, by circle wire bond band manual welding in Kazakhstan copper sheet
Groove in, the welding temperature of solder containing pb is 340 DEG C ± 5 DEG C, and the welding temperature of lead-free solder is 370 DEG C ± 5 DEG C；
Step 3, by the peel test of 180 ° of Kazakhstan copper sheet and circle wire bond band progress after welding, (be pulled direction such as Fig. 3 institutes
Show), circle wire bond band and the peel distance of Kazakhstan copper sheet are not less than 20mm when test；
Step 4, the length of relatively stable curved section and stationary curve section in stripping curve is taken to be greater than or equal to 15mm, meter
Calculate mean peel strength.
It is using the advantageous effect of above-mentioned technical proposal：It effectively can accurately detect that the stripping of round wire bond band is strong
Degree.
Further include impact test step between above-mentioned steps 2 and step 3 in other embodiments of the present invention：
Only start linear reciprocating motor and be 1mm by its travel settings, by after welding Kazakhstan copper sheet and circle wire bond band carry out 0 ° and lead
Draw and make high frequency tension impact back and forth (direction that is pulled is as shown in Figure 2).It is using the advantageous effect of above-mentioned technical proposal：It can examine
The peel strength after round wire bond band tolerance high-frequency percussion is measured, the endurance quality of subsequent product is improved.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow ordinary skill people
Member can understand present disclosure and be implemented, and it is not intended to limit the scope of the present invention, all according to the present invention
Equivalent change or modification made by Spirit Essence should all cover within the scope of the present invention.
Claims (10)
1. a kind of round wire bond band peel strength detection device, which is characterized in that including：
Kazakhstan copper sheet, surface are equipped with a semi-circular grooves, diameter and measured circle wire bond band diameter matches, the circle silk of the groove
Welding is set in groove and is welded with Kazakhstan copper sheet；
Copper sheet limiting device is used to limit the position of Kazakhstan copper sheet；
Device for measuring force is used to measure the pulling force being applied between round wire bond band and Kazakhstan copper sheet.
2. round wire bond band peel strength detection device according to claim 1, which is characterized in that ditch on the Kazakhstan copper sheet
The length of slot is greater than or equal to 100mm.
3. round wire bond band peel strength detection device according to claim 1, which is characterized in that ditch on the Kazakhstan copper sheet
A diameter of 0.35-0.4mm of slot.
4. round wire bond band peel strength detection device according to claim 1, which is characterized in that the copper sheet limiting device
Including pedestal, the pedestal is equipped with placing groove, and width and the Kazakhstan copper sheet width of placing groove match, put on the pedestal
The edge for setting slot is equipped with limiting section.
5. round wire bond band peel strength detection device according to claim 4, which is characterized in that the pedestal is equipped with the
One guide rail, the first guide rail are equipped with upper limit position block, and upper limit position block is connected on the motion bar of the first cylinder, and upper limit position block bottom is set
It is useful for avoiding the escape groove of round wire bond band.
6. round wire bond band peel strength detection device according to claim 5, which is characterized in that further include that welding clamps dress
It sets, the welding clamping device is set between Kazakhstan copper sheet and device for measuring force, and the welding clamping device includes outline border, the first folder
Block, the second fixture block, the second cylinder, third cylinder, the outline border are slidably disposed on the second guide rail on pedestal, described outer
Third guide rail is equipped in frame, first fixture block and the second fixture block are slidably disposed on third guide rail, first fixture block
It is connect with the second cylinder, second fixture block is connect with third cylinder, and the outline border is connect with device for measuring force, first fixture block
The face opposite with the second fixture block is equipped with the long holding tank for welding to be clamped.
7. round wire bond band peel strength detection device according to claim 6, which is characterized in that further include driving device,
The driving device includes linear reciprocating motor, guide pad, runner, decelerating motor, and the linear reciprocating motor is slidably set
It sets on the 4th guide rail on pedestal, the linear reciprocating motor output end is connect with device for measuring force, and the guide pad is fixed on
The top of linear reciprocating motor, guide pad are equipped with strip guide groove, and runner is equipped with the pulley eccentric with roller centre phase,
The pulley is arranged in guide groove, and the decelerating motor is fixed by the bracket on pedestal and runner can be driven to rotate.
8. round wire bond band peel strength detection device according to claim 7, which is characterized in that the outline border is equipped with light
Grid detection is popped one's head in, and the second guide rail is equipped with grating scale, and the device for measuring force is digital force-measuring device, further includes that processing control is single
Member, the processing and control element (PCE) receive the outline border displacement signal of the detection of grating detection probe and the pulling force letter of digital device for measuring force
Number, the relation curve of pulling force and displacement is exported after processing.
9. a kind of round wire bond band peel strength detection method, which is characterized in that using any circle wire bonds of claim 1-8
Band peel strength detection device, includes the following steps：
Step 1, it takes a surface to have the Kazakhstan copper sheet of polishing semi-circular grooves, its groove is cleaned with absolute ethyl alcohol,
It is used in combination cold wind to dry up；
Step 2, length is taken to be greater than or equal to the circle wire bond band of 100mm, it is 0.15g/ml-0.30g/ml to be dipped in mass concentration
Rosin ethanol solution in 1min, 3s is pasted after taking-up on filter paper, will circle wire bond with manual welding in the groove of Kazakhstan copper sheet,
The welding temperature of solder containing pb is 340 DEG C ± 5 DEG C, and the welding temperature of lead-free solder is 370 DEG C ± 5 DEG C；
Step 3, by after welding Kazakhstan copper sheet and circle wire bond band carry out 180 ° of peel test, circle wire bond band and Kazakhstan when test
The peel distance of copper sheet is not less than 20mm；
Step 4, it takes the length of relatively stable curved section and stationary curve section in stripping curve to be greater than or equal to 15mm, calculates flat
Equal peel strength.
10. round wire bond band peel strength detection method according to claim 9, which is characterized in that in step 2 and step 3
Between, further include impact test step：Only start linear reciprocating motor and be 1mm by its travel settings, by the Kazakhstan after welding
Copper sheet and circle wire bond band carry out 0 ° of traction and make high frequency tension impact back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292593.1A CN108645786A (en) | 2018-03-30 | 2018-03-30 | A kind of round wire bond band peel strength detection device and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292593.1A CN108645786A (en) | 2018-03-30 | 2018-03-30 | A kind of round wire bond band peel strength detection device and its detection method |
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|---|---|
| CN108645786A true CN108645786A (en) | 2018-10-12 |
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|---|---|---|---|
| CN201810292593.1A Pending CN108645786A (en) | 2018-03-30 | 2018-03-30 | A kind of round wire bond band peel strength detection device and its detection method |
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