CN108362998A - A kind of touch chip presses compression testing device - Google Patents
A kind of touch chip presses compression testing device Download PDFInfo
- Publication number
- CN108362998A CN108362998A CN201810496819.XA CN201810496819A CN108362998A CN 108362998 A CN108362998 A CN 108362998A CN 201810496819 A CN201810496819 A CN 201810496819A CN 108362998 A CN108362998 A CN 108362998A
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- CN
- China
- Prior art keywords
- spring
- key
- locating slot
- chip
- pedestal
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
- G01R31/2891—Features relating to contacting the IC under test, e.g. probe heads; chucks related to sensing or controlling of force, position, temperature
Abstract
Compression testing device is pressed the present invention provides a kind of touch chip,Including device body,Described device ontology includes pedestal,The top of the pedestal it is placed in the middle equipped with the groove being recessed inwardly,It is placed in the middle in the groove to be equipped with locating slot,Four side walls of the groove are equipped with linear motor,The push rod of the linear motor runs through the side wall of the locating slot and stretches to the center of the locating slot,The depth of the locating slot is suitable with the thickness of chip to be measured,A pair of first limited block is connected at the top of the pedestal,Present invention touch chip to be measured is limited in the center of locating slot,Briquetting is pressed to chip top to be measured by air cylinder driven piston rod,During the test,When the driving parameter of cylinder changes,The power for remaining to that briquetting is kept to be applied to chip surface to be measured is constant,To not influence the accuracy of test result,Simultaneously the case where causing to damage chip to be measured by pressure since the pressing force being subject to is excessive is avoided to occur.
Description
Technical field
The present invention relates to chip testing devices technical field, more particularly to a kind of touch chip presses compression testing device.
Background technology
With the rapid development for the biological identification technology for being identified as representing with touch-control, electronic equipment is nearly all equipped with touch-control knowledge
Other function generally realizes that touch-control identifies using condenser type or resistance-type.It can be to touch-control core during the volume production of touch chip
Piece carries out pressing test, and existing by compression testing device includes cylinder activation bar, adjusting knob, spring and Rubber end, i.e., existing
Be single spring structure by compression testing device, when carrying out pressing test, cylinder activation bar passes through spring and pushes Rubber end court
To chip to be measured movement and chip is pressed, so as to complete pressing test.
Existing compression testing device of pressing is during pressing, test pressure and cylinder system that Rubber end applies to chip to be measured
The factors such as the air pressure size of lever, cylinder stroke are related, if any of the above-described factor changes, can test pressure be caused to change
Become so that test result is inaccurate, in some instances it may even be possible to damage chip by pressure since test pressure is excessive.
Invention content
(1) the technical issues of solving
To solve the above-mentioned problems, compression testing device, touch-control core to be measured are pressed the present invention provides a kind of touch chip
Piece is limited in the center of locating slot, and briquetting is pressed to chip top to be measured by air cylinder driven piston rod, in test process
In, when the driving parameter of cylinder changes, the power for remaining to that briquetting is kept to be applied to chip surface to be measured is constant, thus not shadow
The accuracy of test result is rung, while avoiding the case where causing to damage chip to be measured by pressure since the pressing force being subject to is excessive and sending out
It is raw.
(2) technical solution
A kind of touch chip presses compression testing device, including device body, described device ontology include pedestal, the pedestal
Top it is placed in the middle be equipped with the groove being recessed inwardly, it is placed in the middle equipped with locating slot, four side walls of the groove in the groove
It is equipped with linear motor, the push rod of the linear motor runs through the side wall of the locating slot and stretches to the center of the locating slot,
The depth of the locating slot is suitable with the thickness of chip to be measured, and a pair of first limited block is connected at the top of the pedestal, a pair of
First limited block respectively symmetrically positioned at the both sides of the locating slot, the end face of first limited block is located at the positioning
On the sidewall extension line of slot, the outside of first limited block is equipped with support plate, the bottom of the support plate and the pedestal
Top is connected, and the top of the support plate connects top plate, the top of the top plate it is placed in the middle be equipped with cylinder, the work of the cylinder
Stopper rod runs through the top plate and stretches out in the bottom of the top plate, and the end of the piston rod connects pressing mechanism, the pressing
Mechanism includes the first pressing plate, and the top of first pressing plate is placed in the middle to be connected with the piston rod, the bottom of first pressing plate
Portion is monosymmetric to be equipped with the first spring and second spring, and first spring is identical with the coefficient of elasticity of the second spring,
One end of first spring and the second spring is connected with the bottom of first pressing plate, first spring and institute
The other end for stating second spring is all connected with the top of the second pressing plate, and second pressing plate is mutually be overlapped with the perspective plane of first pressing plate
Close, the bottom of second pressing plate it is placed in the middle be equipped with pressure pipe, the outer diameter of the pressure pipe is of same size with the locating slot, described
It is equipped with hollow cavity in pressure pipe, third spring is equipped in the hollow cavity, the coefficient of elasticity of the third spring is less than described
The coefficient of elasticity of first spring and the second spring, one end of the third spring are connected with the bottom of second pressing plate
It connects, the other end of the third spring connects briquetting, and the bottom of the pressure pipe is equipped with gap, the width of the gap and the pressure
Block it is of same size, the briquetting is connected by rubber washer with the bottom of the pressure pipe, and the bottom inside of the briquetting is set
There are pressure sensor, the outside of the pressure pipe to be equipped with the second limited block, the height of the pressure pipe is equal to first limited block
The sum of the height of height and second limited block, the pedestal are internally provided with control module and key-press module, the pedestal
Front be equipped with liquid crystal display, the side of the liquid crystal display is equipped with key area, the key area include power key,
Pressure setting key and operation key, the back side of the pedestal are equipped with power cord, the power key, the pressure setting key and the fortune
Line unit is electrically connected with the key-press module, and the pressure sensor connects the defeated of the control module with the key-press module
Enter end, the output end of the control module is separately connected the linear motor, the cylinder and the liquid crystal display, the electricity
Source line connects external power supply, and the external power supply provides operating voltage for described device ontology.
Further, the pressure sensor selects deposition tube resistance type pressure sensor.
Further, the cylinder selects blow cylinder.
Further, the key-press module selects keyboard drive chip ZLG7289.
Further, the control module selects 16 microcontroller MC95S12DJ128.
(3) advantageous effect
Compression testing device is pressed the present invention provides a kind of touch chip, chip to be measured is put in locating slot, mould is controlled
What the linear motor of block control recess sidewall synchronized sends out push rod to positioning groove center, thus by chip to be measured limit in locating slot
Center, while also meeting the testing requirement of different model touch chip, test pressure value be arranged by key area,
Control module controls air cylinder driven piston rod and pushes pressing mechanism by the test pressure value of setting, and briquetting is pressed in chip to be measured
The pressure sensor on surface, briquetting bottom inside monitors actual pressure value in real time, and liquid crystal display is to setup pressure value and reality
Pressure value synchronizes display, ensure that the safety of measuring accuracy and test, when cylinder apply practical pressing force be less than or
When equal to setup pressure value, third spring is compressed and is moved towards chip to be measured with briquetting always, until briquetting acts on
The pressing force of chip surface to be measured is equal to the pressure value of setting, when the practical pressing force that cylinder applies is more than setup pressure value,
Since the first limited block and the second limited block mutually support, the decrement of third spring is fixed, and is more than preset pressing force by the
One spring and second spring absorb jointly, so that the pressing force that briquetting acts on chip surface to be measured is equal to the pressure set
Value, i.e., during the test, when the driving parameter of cylinder changes, briquetting, which remains, is applied to chip surface to be measured
Power is constant, to not influencing the accuracy of test result, while avoiding and causes to damage by pressure and wait for since the pressing force being subject to is excessive
The case where surveying chip occurs, and simple in sturcture, ingenious in design, system power dissipation is low, and accuracy of detection is high, fast response time, stability
And good reliability, there is good practicability and scalability, can be widely applied to other occasions of chip pressing test.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram by compression testing device of touch chip according to the present invention.
Fig. 2 is that a kind of practical pressing force by compression testing device of touch chip according to the present invention is less than or equal to and sets
The scene of level pressure force value.
Fig. 3 is that a kind of practical pressing force by compression testing device of touch chip according to the present invention is more than setting pressure
The scene of value.
Fig. 4 is a kind of System Working Principle figure by compression testing device of touch chip according to the present invention.
Specific implementation mode
Embodiment according to the present invention is described in further details below in conjunction with the accompanying drawings.
In conjunction with Fig. 1~Fig. 4, a kind of touch chip presses compression testing device, including device body, device body include pedestal
1, the top of pedestal 1 it is placed in the middle be equipped with the groove 2 being recessed inwardly, it is placed in the middle equipped with locating slot 3, four sides of groove 2 in groove 2
Wall is equipped with linear motor 4, and the push rod 5 of linear motor 4 runs through the side wall of locating slot 3 and stretches to the center of locating slot 3, locating slot
3 depth is suitable with the thickness of chip 25 to be measured, and the top of pedestal 1 is connected with a pair of first limited block 6, a pair of first limited block
6 respectively symmetrically positioned at the both sides of locating slot 3, the end face of the first limited block 6 is located on the sidewall extension line of locating slot 3, first
The outside of limited block 6 is equipped with support plate 7, and the bottom of support plate 7 is connected with the top of pedestal 1, the top connection top of support plate 7
Plate 8, the top of top plate 8 it is placed in the middle be equipped with cylinder 9, the piston rod 10 of cylinder 9 is through top plate 8 and stretches out in the bottom of top plate 8, living
The end of stopper rod 10 connects pressing mechanism, and pressing mechanism includes the first pressing plate 11, the top of the first pressing plate 11 it is placed in the middle and piston
Bar 10 is connected, and the two bottom sides of the first pressing plate 11 are symmetrically equipped with the first spring 12 and second spring 13,12 He of the first spring
The coefficient of elasticity of second spring 13 is identical, and one end of the first spring 12 and second spring 13 is connected with the bottom of the first pressing plate 11
It connects, the other end of the first spring 12 and second spring 13 is all connected with the top of the second pressing plate 14, the second pressing plate 14 and the first pressing plate
11 perspective plane coincides, the bottom of the second pressing plate 14 it is placed in the middle be equipped with pressure pipe 15, the width of the outer diameter and locating slot 3 of pressure pipe 15
It is identical, it is equipped with hollow cavity in pressure pipe 15, is equipped with third spring 16 in hollow cavity, the coefficient of elasticity of third spring 16 is less than the
The coefficient of elasticity of one spring 12 and second spring 13, one end of third spring 16 are connected with the bottom of the second pressing plate 14, third
The other end of spring 16 connects briquetting 17, and the bottom of pressure pipe 15 is equipped with gap, the width of gap and of same size, the pressure of briquetting 17
Block 17 is connected by rubber washer 19 with the bottom of pressure pipe 15, and the bottom inside of briquetting 17 is equipped with pressure sensor 18, pressure pipe
15 outside is equipped with the second limited block 20, and the height of pressure pipe 15 is equal to the height of the height and the second limited block 20 of the first limited block 6
The sum of degree, pedestal 1 are internally provided with control module and key-press module, and the front of pedestal 1 is equipped with liquid crystal display 21, liquid crystal display
The side of screen 21 is equipped with key area, and the key area includes power key 22, pressure setting key 23 and operation key 24, pedestal 1
The back side be equipped with power cord, power key 22, pressure setting key 23 and operation key 24 with key-press module be electrically connected, pressure sensing
The output end of the input terminal of device 18 and key-press module link control module, control module is separately connected linear motor 4,9 and of cylinder
Liquid crystal display 21, power cord connect external power supply, and external power supply provides operating voltage for device body.
Chip 25 to be measured is put into locating slot 3, connection power cord presses power key 22, make device sheet to external power supply
Body is in running order.Pressure setting key 23 is for setting the pressing that cylinder 9 is applied to 25 surface of chip to be measured by briquetting 17
Power, 21 simultaneous display setup pressure value of liquid crystal display.Setting finishes, and presses operation key 24, device body is to chip 25 to be measured
Carry out pressing test.Power key 22, pressure setting key 23 and operation key 24 are electrically connected with key-press module, and key-press module is selected
Keyboard drive chip ZLG7289, ZLG7289 be there is SPI serial line interface functions can drive for up to 8*8 keyboards or 64 simultaneously
The only intelligent display driving chip of independent LED, monolithic can be completed display, keyboard interface repertoire, using serial mode
It being communicated with control module, data are sent into chip from DIO feet, and are synchronized by CLK feet, after CS foot signals become low level, DIO feet
On data the buffer register of ZLG7289 is written into the rising edge of CLK feet.Entire circuit is without adding latch and driving
Device, little power consumption, and eliminate static status display extended chip without writing display translator in Software for Design, greatly save
Time of control module.
Control module export four tunnels control signal control respectively the synchronization of the linear motor 4 on 2 four side walls of groove to fixed
Push rod 5 is sent out at the center of position slot 3, to which chip 25 to be measured to be pushed to the center of locating slot 3 so that chip 25 to be measured is in always
The center of locating slot 3 realizes the precise positioning to chip 25 to be measured, will not be displaced, ensure that the accurate of test
Property, while also meeting the testing requirement of different model touch chip.Control module controls pressure value driving of the cylinder 9 by setting
Piston rod 10 pushes pressing mechanism so that briquetting 17 presses on the surface of chip 25 to be measured.The pressure of 17 bottom inside of briquetting passes
Sensor 18 monitors actual pressure value in real time.Cylinder 9 selects blow cylinder, its main feature is that impact force is strong, speed is fast, air consumption
It is small, meet the occasion having higher requirements to impact force.Pressure sensor 18 select deposition tube resistance type pressure sensor, be
Sheet surface forms semiconductor strain pressure, makes thin metal plate by pressure by generates Piezoelectric Impedance effect, to make impedance
Variation is converted into electric signal.Liquid crystal display 21 synchronizes display to actual pressure value, ensure that measuring accuracy and test
Safety.
When cylinder 9 apply practical pressing force be less than or equal to setup pressure value when, briquetting 17 first with chip 25 to be measured
Be in contact, briquetting 17 by chip 25 to be measured reaction force so that third spring 16 is first compressed, and the first spring 12 and the
Two springs 13 will not be compressed since coefficient of elasticity is all higher than the coefficient of elasticity of third spring 16.Third spring 16 is always
It is compressed and is moved towards chip 25 to be measured with briquetting 17, until briquetting 17 acts on the pressing force etc. on 25 surface of chip to be measured
In the pressure value of setting.
When the practical pressing force that cylinder 9 applies is more than setup pressure value, the pressing completely of briquetting 17 is in chip 25 to be measured
Surface mutually supports effect due to the first limited block 6 and the second limited block 20, and third spring 16 will not continue to be compressed, i.e.,
The decrement of third spring 16 is to fix, and cylinder 9 drives piston rod 10 to continue to push pressing mechanism, and the second pressing plate 14 is pressed against
Second limited block 20 can not move down again above, and the first pressing plate 11 presses the first spring 12 and second spring 13, be more than pre-
If pressing force absorbed jointly by the first spring 12 and second spring 13 so that briquetting 17 acts on 25 surface of chip to be measured
Pressing force be equal to setting pressure value.I.e. during the test, when the driving parameter of cylinder 9 changes, briquetting 17 begins
The power for remaining applied to 25 surface of chip to be measured eventually is constant, to not influencing the accuracy of test result, while avoid due to
The pressing force being subject to is excessive and causes to occur the case where damaging chip 25 to be measured by pressure.
Control module handles the input signal of pressure sensor 18 and key-press module, and output control signal is controlled respectively
Linear motor 4, cylinder 9 and liquid crystal display 21 processed work.In order to simplify circuit, cost is reduced, the system later stage is improved
Scalability, control module select the RAM and 2KB of 16 microcontrollers MC95S12DJ128, Flash, 8KB of built-in 128KB
EEPROM, have 5V input and driving capability, CPU working frequencies can reach 50MHz.The independent number I/O interfaces in 29 tunnels, 20
Road band interrupts and the digital I/O interfaces of arousal function, 10 A/D converters in 28 channels, and the input capture with 8 channels/
Output is compared, and also has 8 programmable channels PWM.With 2 serial asynchronous communication interface SCI, 2 synchronous serial peripheral hardwares connect
Mouth SPI, I2C buses and CAN function modules etc. meet design requirement.
Compression testing device is pressed the present invention provides a kind of touch chip, chip to be measured is put in locating slot, mould is controlled
What the linear motor of block control recess sidewall synchronized sends out push rod to positioning groove center, thus by chip to be measured limit in locating slot
Center, while also meeting the testing requirement of different model touch chip, test pressure value be arranged by key area,
Control module controls air cylinder driven piston rod and pushes pressing mechanism by the test pressure value of setting, and briquetting is pressed in chip to be measured
The pressure sensor on surface, briquetting bottom inside monitors actual pressure value in real time, and liquid crystal display is to setup pressure value and reality
Pressure value synchronizes display, ensure that the safety of measuring accuracy and test, when cylinder apply practical pressing force be less than or
When equal to setup pressure value, third spring is compressed and is moved towards chip to be measured with briquetting always, until briquetting acts on
The pressing force of chip surface to be measured is equal to the pressure value of setting, when the practical pressing force that cylinder applies is more than setup pressure value,
Since the first limited block and the second limited block mutually support, the decrement of third spring is fixed, and is more than preset pressing force by the
One spring and second spring absorb jointly, so that the pressing force that briquetting acts on chip surface to be measured is equal to the pressure set
Value, i.e., during the test, when the driving parameter of cylinder changes, briquetting, which remains, is applied to chip surface to be measured
Power is constant, to not influencing the accuracy of test result, while avoiding and causes to damage by pressure and wait for since the pressing force being subject to is excessive
The case where surveying chip occurs, and simple in sturcture, ingenious in design, system power dissipation is low, and accuracy of detection is high, fast response time, stability
And good reliability, there is good practicability and scalability, can be widely applied to other occasions of chip pressing test.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and range is defined.Under the premise of not departing from design concept of the present invention, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, should all drop into protection scope of the present invention, the claimed technology contents of the present invention,
It has all recorded in detail in the claims.
Claims (5)
1. a kind of touch chip presses compression testing device, including device body, it is characterised in that：Described device ontology includes bottom
Seat, the top of the pedestal it is placed in the middle be equipped with the groove being recessed inwardly, it is placed in the middle equipped with locating slot, the groove in the groove
Four side walls be equipped with linear motor, the push rod of the linear motor through the locating slot side wall and stretch to the positioning
The center of slot, the depth of the locating slot is suitable with the thickness of chip to be measured, and a pair first is connected at the top of the pedestal and is limited
Position block, a pair of first limited block respectively symmetrically be located at the both sides of the locating slot, the end face of first limited block
In on the sidewall extension line of the locating slot, the outside of first limited block is equipped with support plate, the bottom of the support plate with
Be connected at the top of the pedestal, the top of the support plate connects top plate, the top of the top plate it is placed in the middle be equipped with cylinder, institute
The piston rod of cylinder is stated through the top plate and stretches out in the bottom of the top plate, the end of the piston rod connects pressing machine
Structure, the pressing mechanism include the first pressing plate, and the top of first pressing plate is placed in the middle to be connected with the piston rod, and described the
The two bottom sides of one pressing plate are symmetrically equipped with the first spring and second spring, the elasticity of first spring and the second spring
Coefficient is identical, and one end of first spring and the second spring is connected with the bottom of first pressing plate, and described
One spring and the other end of the second spring are all connected with the top of the second pressing plate, second pressing plate and first pressing plate
Perspective plane coincides, the bottom of second pressing plate it is placed in the middle be equipped with pressure pipe, the width of the outer diameter of the pressure pipe and the locating slot
It spends identical, hollow cavity is equipped in the pressure pipe, third spring, the elasticity system of the third spring are equipped in the hollow cavity
Number is less than the coefficient of elasticity of first spring and the second spring, one end of the third spring and second pressing plate
Bottom is connected, and the other end of the third spring connects briquetting, and the bottom of the pressure pipe is equipped with gap, the width of the gap
Of same size with the briquetting, the briquetting is connected by rubber washer with the bottom of the pressure pipe, the bottom of the briquetting
Pressure sensor is equipped on the inside of portion, the outside of the pressure pipe is equipped with the second limited block, and the height of the pressure pipe is equal to described first
The sum of the height of the height of limited block and second limited block, the pedestal are internally provided with control module and key-press module,
The front of the pedestal is equipped with liquid crystal display, and the side of the liquid crystal display is equipped with key area, the key area packet
Power key, pressure setting key and operation key are included, the back side of the pedestal is equipped with power cord, the power key, pressure setting
Key and the operation key are electrically connected with the key-press module, and the pressure sensor connects the control with the key-press module
The output end of the input terminal of molding block, the control module is separately connected the linear motor, the cylinder and the liquid crystal
Display screen, the power cord connect external power supply, and the external power supply provides operating voltage for described device ontology.
2. a kind of touch chip according to claim 1 presses compression testing device, it is characterised in that：The pressure sensor
Select deposition tube resistance type pressure sensor.
3. a kind of touch chip according to claim 1 presses compression testing device, it is characterised in that：The cylinder selects punching
Hit cylinder.
4. a kind of touch chip according to claim 1 presses compression testing device, it is characterised in that：The key-press module choosing
With keyboard drive chip ZLG7289.
5. a kind of touch chip according to claim 1 presses compression testing device, it is characterised in that：The control module choosing
With 16 microcontroller MC95S12DJ128.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496819.XA CN108362998A (en) | 2018-05-22 | 2018-05-22 | A kind of touch chip presses compression testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496819.XA CN108362998A (en) | 2018-05-22 | 2018-05-22 | A kind of touch chip presses compression testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108362998A true CN108362998A (en) | 2018-08-03 |
Family
ID=63012255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810496819.XA Withdrawn CN108362998A (en) | 2018-05-22 | 2018-05-22 | A kind of touch chip presses compression testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108362998A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110007114A (en) * | 2019-04-12 | 2019-07-12 | 武汉精毅通电子技术有限公司 | A kind of pressure head structure that can accurately crimp FPC, display panel crimping conducting tooling and lighting test jig |
| CN110142996A (en) * | 2019-04-26 | 2019-08-20 | 山东省科学院激光研究所 | Apparatus for adjusting position, press machine and position adjusting method |
| CN111190091A (en) * | 2019-12-26 | 2020-05-22 | 华虹半导体(无锡)有限公司 | Test head of WAT equipment and diagnosis and repair method thereof |
| CN111289871A (en) * | 2018-12-06 | 2020-06-16 | 大量科技（涟水）有限公司 | Pressure holding device with pressure detection function for IC test |
| CN111922764A (en) * | 2020-09-22 | 2020-11-13 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
| CN117406067A (en) * | 2023-12-11 | 2024-01-16 | 上海捷策创电子科技有限公司 | Pressure detection device and method for chip test seat |
-
2018
- 2018-05-22 CN CN201810496819.XA patent/CN108362998A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289871A (en) * | 2018-12-06 | 2020-06-16 | 大量科技（涟水）有限公司 | Pressure holding device with pressure detection function for IC test |
| CN110007114A (en) * | 2019-04-12 | 2019-07-12 | 武汉精毅通电子技术有限公司 | A kind of pressure head structure that can accurately crimp FPC, display panel crimping conducting tooling and lighting test jig |
| CN110142996A (en) * | 2019-04-26 | 2019-08-20 | 山东省科学院激光研究所 | Apparatus for adjusting position, press machine and position adjusting method |
| CN110142996B (en) * | 2019-04-26 | 2023-09-22 | 山东省科学院激光研究所 | Position adjusting device, press and position adjusting method |
| CN111190091A (en) * | 2019-12-26 | 2020-05-22 | 华虹半导体(无锡)有限公司 | Test head of WAT equipment and diagnosis and repair method thereof |
| CN111190091B (en) * | 2019-12-26 | 2021-11-09 | 华虹半导体(无锡)有限公司 | Test head of WAT equipment and diagnosis and repair method thereof |
| CN111922764A (en) * | 2020-09-22 | 2020-11-13 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
| CN111922764B (en) * | 2020-09-22 | 2021-01-12 | 维嘉数控科技（苏州）有限公司 | Depth-controlled milling compensation depth detection mechanism and circuit board depth-controlled milling device |
| CN117406067A (en) * | 2023-12-11 | 2024-01-16 | 上海捷策创电子科技有限公司 | Pressure detection device and method for chip test seat |
| CN117406067B (en) * | 2023-12-11 | 2024-02-13 | 上海捷策创电子科技有限公司 | Pressure detection device and method for chip test seat |
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Application publication date: 20180803 |
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