CN116990673B - Electrical testing device for COF packaging - Google Patents
Electrical testing device for COF packaging Download PDFInfo
- Publication number
- CN116990673B CN116990673B CN202311243354.4A CN202311243354A CN116990673B CN 116990673 B CN116990673 B CN 116990673B CN 202311243354 A CN202311243354 A CN 202311243354A CN 116990673 B CN116990673 B CN 116990673B
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- box
- circuit board
- flexible circuit
- gear
- cleaning
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- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 82
- 239000000523 sample Substances 0.000 claims abstract description 49
- 238000004080 punching Methods 0.000 claims abstract description 41
- 238000004140 cleaning Methods 0.000 claims description 73
- 238000001125 extrusion Methods 0.000 claims description 27
- 238000011010 flushing procedure Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 238000007689 inspection Methods 0.000 abstract description 2
- 239000011799 hole material Substances 0.000 description 47
- 238000009423 ventilation Methods 0.000 description 17
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 239000003550 marker Substances 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- 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
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
- B26F2210/08—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of ceramic green sheets, printed circuit boards and the like
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
Abstract
The invention discloses an electrical testing device for COF packaging, which comprises a testing box, wherein a first reel and a second reel are arranged in the testing box, a plurality of groups of pin wheels for driving a flexible circuit board are arranged in the testing box, the pin wheels are arranged between the first reel and the second reel, a probe device for detecting, a punching device for punching an unfinished product, a first detection device for detecting whether a chip is arranged, and a second detection device for judging whether unqualified products on the flexible circuit board are punched and the punching position is offset or not are also arranged in the testing box. The invention belongs to the technical field of electrical performance testing devices, and particularly relates to an electrical performance testing device for COF packaging, which can synchronously perform electrical performance testing on a flexible circuit board, detect the appearance of the flexible circuit board without an additional driving device, reduce the workload of a subsequent appearance inspection process, mark unqualified products and reduce the cost.
Description
Technical Field
The invention belongs to the technical field of electrical performance testing devices, and particularly relates to an electrical performance testing device for COF packaging.
Background
Before leaving the factory, the flexible circuit board needs to be electrified by using an electrical testing jig, and the general technical means is that a microneedle contacts a testing point of the flexible circuit board to conduct the conduction test; along with the improvement of the integration level of the electronic circuit and the improvement of the light weight requirement of users on products, the circuit of the flexible circuit board is more dense, probes for connection are more dense, the probes are required to be synchronously detected up and down in the detection process, meanwhile, when the flexible circuit board is detected, impurities on pins are also easy to influence the detection, errors are caused on detection results, a marking device is required to mark unqualified products, extra driving force is required to provide driving for the marking device, and the cost is increased.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the electrical testing device for the COF packaging, which can synchronously perform electrical testing on the flexible circuit board, detect the appearance of the flexible circuit board without an additional driving device, reduce the workload of a subsequent appearance inspection process, mark unqualified products and reduce the cost.
The technical scheme adopted by the invention is as follows: the utility model provides an electrical property testing arrangement is used in COF encapsulation, includes the test box, be equipped with reel one and reel two in the test box, place the flexible circuit board after the encapsulation that needs to detect on the reel one, reel two is used for carrying out rolling processing to the flexible circuit board after detecting, place multiunit needle wheel that is used for driving the flexible circuit board in the test box, the needle wheel is located between reel one and reel two, still place the probe device that is used for detecting in the test box, be used for carrying out punching press to the punching press device of unfinished product, be used for detecting whether have the detection device of chip one and judge whether the defective products on the flexible circuit board punching press and punching a position have detection device two of skew;
the first detection device is arranged close to the first winding wheel and is used for detecting whether a chip to be detected exists on the flexible substrate on the first winding wheel, if the chip exists, the probe device, the punching device and the second detection device start to work, and if the chip does not exist, the probe device, the punching device and the second detection device do not work;
the probe device is arranged among the multiple groups of pinwheels to detect the flexible circuit board, the punching device is arranged at the lower end of the probe device and is used for punching unqualified products detected by the probe device, and the detection device II is arranged close to the rolling wheel II;
the flexible circuit board is pulled out from the first reel, sequentially passes through the pinwheel, the probe device, the pinwheel, the punching device and the detection device II, and is wound by the second reel.
Further, the probe device comprises a fixed box, the fixed box is of a hollow cavity structure with an opening on the side wall, a driving assembly, a detection assembly for detection and an appearance detection marking assembly arranged between the detection assemblies are arranged in the fixed box, the driving assembly is arranged on the inner side wall of the fixed box, the detection assembly is arranged on the driving assembly, and the appearance detection marking assembly is arranged on the driving assembly.
The driving assembly comprises a plurality of groups of fixing pieces for supporting, the fixing pieces are sequentially arranged on the side wall of the fixing box from bottom to top, the fixing pieces are named as a fixing piece I, a fixing piece II and a fixing piece III, the fixing pieces N are arranged on the lowest end, the fixing piece N is arranged on the uppermost end, the fixing pieces I and N are fixedly connected with the inner side wall of the fixing box, the regulating and controlling assembly is arranged on the fixing piece I, the fixing pieces II are arranged on the regulating and controlling assembly, clamping pieces are respectively arranged on the fixing pieces, the fixing pieces are movably clamped with driving pieces, the bottom wall of the driving piece is provided with clamping grooves, the clamping grooves are matched with the clamping pieces, the driving pieces are movably clamped on the upper wall of the fixing piece through the clamping grooves and the clamping pieces, the upper wall of the driving piece is provided with tooth conditions, the opposite side walls of the fixing pieces are provided with supporting plates, the fixing box is internally provided with a hydraulic rod, the movable end of the hydraulic rod is connected with one end of the driving piece on the fixing piece I, the supporting plate is movably provided with a gear, the upper end of the gear is movably arranged on the gear is meshed with the gear, the upper end of the gear is arranged on the upper end of the fixing piece, the upper end of the gear is meshed with the upper end of the gear is movably arranged on the fixing piece, and the upper end of the fixing piece is meshed with the gear is meshed with the upper end of the gear;
the hydraulic rod connected with the driving piece at the lowest end works to push the driving piece at the lowest end to move from right to left, the tooth condition moves from right to left, the rack piece drives the gear to rotate clockwise, the gear drives the rack piece meshed with the gear to lift, in the process of lifting the tooth condition, the rest gears meshed with the gear are driven to rotate clockwise, and the gear drives the rack piece meshed with the gear to move leftwards, so that the synchronous detection function of the chip is realized.
The fixed plate is provided with a chute, the side wall of the fixed plate is connected with a mounting part, the regulating and controlling assembly comprises a motor, the motor is mounted in the mounting part, the upper wall of the mounting part is movably provided with a first gear, the output shaft end of the motor penetrates through the upper wall of the mounting part and is connected with the center of the first gear, the fixed plate is movably clamped with a fixed column, the lower end of the fixed column is movably clamped in the chute, the middle position of the fixed column is provided with a second gear, the second gear is in meshed connection with the first gear, and the bottom wall of the second fixed part is connected with the upper end of the fixed column;
the motor works to drive the first gear to rotate, the first gear drives the second gear meshed with the first gear to rotate, the second gear drives the fixing column to rotate, and the fixing column drives the second fixing piece on the fixing column to rotate, so that the direction is adjusted.
Further, the detection assembly comprises a pushing plate, the pushing plate is connected with the other end of the driving piece, a plurality of groups of air flushing needles for cleaning pins and a plurality of groups of probes for detecting the flexible circuit board are arranged on the pushing plate, the air flushing needles are arranged at the upper end of the probes, the length of the air flushing needles is smaller than that of the probes, the other end of the driving piece is also provided with a fixing assembly, the fixing assembly comprises a bag-shaped piece, one end of the bag-shaped piece is connected with the side wall of the other end of the driving piece, the other end of the bag-shaped piece is provided with a base plate, the base plate is made of rubber, the side wall of the other end of the driving piece is provided with a plurality of groups of air holes I for conveying gas, the air holes I are in through connection with the bag-shaped piece, an air cavity I is in through connection with the air ventilating cavities I, the air cavities I are in through connection with the air flushing needles, a spring I is connected between the base plate and the driving piece, and the spring I is a weak elastic spring;
when the driving piece promotes fixed subassembly and bulldozes the board and is close to the flexible circuit board, the backing plate extrudees to the flexible circuit board, along with the further promotion of driving piece, the backing plate is fixed the flexible circuit board, spring one and the compression of bag form piece simultaneously, inside air gets into in the ventilation chamber one through the air vent one to discharge through the air-out needle, clear up the pin, reduce the error, along with the further removal of driving piece, probe and pin contact carry out the electrical property to the flexible circuit board.
The appearance detection marking component comprises an optical lens, wherein the optical lens is arranged on the side wall of a driving piece on a second fixing piece, the optical lens has high resolution, foreign matters, glue spreading conditions, material scratches and the like on a flexible circuit board can be detected, the appearance detection marking component also comprises a marking pen, the marking pen is arranged on the side wall of the other end of the driving piece, and when the detection component detects that the flexible circuit board is an unqualified product, the marking pen marks the product, so that a subsequent punching device can conveniently process the product;
initially, under the effect of motor, mounting second is perpendicular with mounting first, and the marker locates inside the fixed box, mounting first when horizontal put upward movement, when driving gear spare upward movement, can drive the driving piece on the mounting second and vertically inwards move, the driving piece drives the optical lens inwards and moves, carry out outward appearance detection to the flexible circuit board, if the flexible circuit board of detecting the subassembly detection here is the disqualified product, the marker marks the product, the hydraulic stem drives the driving piece and contracts to the unoperated state after, motor operation drives gear first rotation, gear first drive and the rotation of gear second that meshes with it, gear second drive fixed column is rotatory, the fixed column drives mounting second rotation on it, mounting second adjusts to the position that is parallel with mounting first, and the marker is close to the flexible circuit board and places, simultaneously the hydraulic stem works once more, promote the driving piece to follow right side and left, the probe detects the flexible circuit board again, the marker marks the flexible circuit board simultaneously.
Further, be equipped with the locating part on the mounting, the gear side wall is equipped with the spacing groove, and locating part and spacing groove match and set up, and when the gear activity runs through the mounting, the locating part card on the mounting is in the spacing groove, and the displacement of locating part to the gear carries out spacing processing.
Preferably, the first air bag part is connected to the upper wall in the fixed box, the first air bag part is made of flexible materials, the first extrusion plate is installed at the lower end of the first air bag part, the first bottom wall of the extrusion plate is connected with the upper end of the gear part, the first cleaning component is installed on the inner wall of the test box and is placed close to the first detection device, after the first detection device detects that a chip is installed on the flexible circuit board, the first cleaning component cleans the flexible circuit board, the first cleaning component comprises a cleaning box, a channel for facilitating the passage of the flexible circuit board is arranged in the middle of the cleaning box, cleaning holes are formed in two opposite side walls of the channel of the cleaning box, a pipeline I is connected between the bottom wall of the cleaning box and the upper wall of the fixed box, a plurality of groups of vent holes for conveying gas are formed in the upper wall of the fixed box, the vent holes II are communicated with the first air bag part, a vent cavity II is formed in the upper wall of the fixed box, the vent holes II are communicated with the vent holes II and are communicated with the first pipeline, a spring II and a weak spring II is connected between the extrusion plate and the upper wall of the fixed box;
when the first extrusion plate is pushed to move upwards by the gear piece, the first extrusion plate extrudes the first air bag piece along with the further pushing of the gear piece, meanwhile, the second spring and the first telescopic rod compress, internal air enters the second ventilation cavity through the second ventilation hole and enters the cleaning box through the first pipeline, and is discharged through the cleaning hole, so that the flexible circuit board is cleaned, and errors are reduced.
As a preferred mode of the invention, the inner bottom wall of the fixed box is connected with the air bag part II which is made of flexible materials, the upper end of the air bag part II is provided with the extrusion plate II, the upper wall of the extrusion plate II is connected with the lower end of the gear part II, the inner wall of the test box is provided with the cleaning component II, the cleaning component II is arranged between the punching device and the detection device II, the cleaning component II cleans the flexible circuit board, the cleaning component II comprises a cleaning box, a channel which is convenient for the flexible circuit board to pass through is arranged in the middle of the cleaning box, cleaning holes are arranged on the opposite two side walls of the channel of the cleaning box, a pipeline II is connected between the bottom wall of the cleaning box and the upper wall of the fixed box, the inner bottom wall of the fixed box is provided with a plurality of groups of vent holes III for conveying gas, the vent holes III are connected with the air bag part II in a penetrating way, the bottom wall of the fixed box is internally provided with the vent cavity III which is connected with the vent cavity II, the vent cavity III is connected with the pipeline II in a penetrating way, a spring III and a telescopic rod II are connected between the extrusion plate II and the upper wall of the fixed box, and the spring III is a weak elastic spring;
when the gear piece promotes the stripper plate II and moves down, the stripper plate II extrudes the air bag piece II, and along with the further promotion of gear piece, the stripper plate II extrudes the air bag piece II, and spring III and telescopic link II compress simultaneously, and inside air gets into in the ventilation chamber III through the air vent III to get into clean case through pipeline II, discharge through clean hole, clear up the flexible circuit board, reduce the error.
The pin wheel comprises a driving pin wheel and a limiting pin wheel, and the driving pin wheel provides driving force for the movement of the flexible circuit board.
Further, a controller is arranged on the outer side of the fixed box, and the controller is electrically connected with the probe device, the punching device, the first detection device and the second detection device.
After the structure is adopted, the invention has the following beneficial effects:
(1) The setting of tooth condition can transmit the driving force for other detection device can synchronous motion under the condition of not having any drive, realizes the synchronous detection's of flexible circuit board function, simultaneously when synchronous detection, also provides the driving force for outward appearance detection or mark function.
(2) The design of the regulating and controlling component provides driving force for the replacement of the appearance detection or marking function.
(3) The backing plate is rubber material, and the texture is gentle, extrudes to the flexible circuit board, can fix the flexible circuit board, and first and the bag form piece compression of spring simultaneously, and inside air gets into in the ventilation chamber is first through the air vent to discharge through the air-flushing needle, clear up the pin, reduce the error, along with the further removal of driving piece, the probe contacts with the pin, carries out the electrical property to the flexible circuit board.
(4) The first cleaning component and the second cleaning component are installed, extrusion or stretching of the first air bag component or the second air bag component is achieved through up-and-down movement of tooth conditions, gas in the first air bag component or the second air bag component enters the cleaning box through corresponding pipelines and is discharged from the cleaning holes, dust and impurities on the surface of the flexible circuit board are cleaned, and the function of cleaning the position is achieved under the condition that a cleaning driving device is not used.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
FIG. 1 is a schematic diagram of a COF package electrical testing device according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B of FIG. 1;
FIG. 4 is a front view of a driving assembly of an electrical testing device for COF package according to the present invention;
FIG. 5 is a schematic diagram showing a driving assembly of an electrical testing device for COF package according to the present invention;
fig. 6 is a schematic structural diagram of a second fixing member of the electrical testing device for COF package according to the present invention;
FIG. 7 is a schematic diagram illustrating the connection between a limiting member and a limiting groove of an electrical testing device for COF package according to the present invention;
FIG. 8 is a schematic diagram illustrating a structure of an adjusting component of an electrical testing device for COF package according to the present invention;
fig. 9 is a schematic structural diagram of a probing assembly of an electrical testing device for COF package according to the present invention;
fig. 10 is a partial enlarged view at C of fig. 9.
In the drawings: 1. test box, 2, reel one, 3, reel two, 4, flexible circuit board, 5, probe device, 6, punching device, 7, detection device one, 8, detection device two, 9, fixing box, 10, driving component, 11, detection component, 12, appearance detection marking component, 13, fixing piece, 14, fixing piece one, 15, fixing piece two, 16, fixing piece three, 17, regulating component, 18, clamping piece, 19, driving piece, 20, clamping groove, 21, rack piece, 22, supporting plate, 23, hydraulic rod, 24, gear, 25, gear piece, 26, chute, 27, mounting piece, 28, motor, 29, gear one, 30, fixing column, 31, gear two, 32, push plate, 33, air-flushing needle, 34, probe, 35, balloon member 36, pad 37, vent hole one, 38, vent cavity one, 39, spring one, 40, optical lens 41, marker pen, 42, stopper 43, stopper groove 44, balloon member one, 45, squeeze plate one, 46, cleaning unit one, 47, cleaning box, 48, passage, 49, cleaning hole 50, pipe one, 51, vent hole two, 52, vent cavity two, 53, spring two, 54, telescopic rod one, 55, balloon member two, 56, squeeze plate two, 57, cleaning unit two, 58, pipe two, 59, vent hole three, 60, vent cavity three, 61, spring three, 62, telescopic rod two, 63, driving pinwheel, 64, limiting pinwheel 65, and fixing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-10, an electrical test device for COF package includes a test box 1, a first reel 2 and a second reel 3 are disposed in the test box 1, a packaged flexible circuit board 4 to be tested is disposed on the first reel 2, the second reel 3 is used for rolling the tested flexible circuit board 4, a plurality of groups of pin wheels for driving the flexible circuit board 4 are disposed in the test box 1, the pin wheels are disposed between the first reel 2 and the second reel 3, the pin wheels include a driving pin wheel 63 and a limiting pin wheel 64, the driving pin wheel 63 provides a driving force for movement of the flexible circuit board 4, a probe device 5 for testing, a punching device 6 for punching an unfit product, a first testing device 7 for testing whether a chip is disposed, and a second testing device 8 for judging whether the unfit product on the flexible circuit board 4 has a deviation in punching position or not are disposed in the test box 1; the first detection device 7 is placed close to the first reel 2 and is used for detecting whether a chip to be detected exists on the flexible substrate on the first reel 2, if the chip exists, the probe device 5, the punching device 6 and the second detection device 8 start to work, and if the chip does not exist, the probe device 5, the punching device 6 and the second detection device 8 do not work; the probe device 5 is arranged among a plurality of groups of pinwheels to detect the flexible circuit board 4, the punching device 6 is arranged at the lower end of the probe device 5, the punching device 6 is used for punching unqualified products detected by the probe device 5, and the detection device II 8 is arranged close to the reel II 3; the flexible circuit board 4 is drawn out from the first reel 2, sequentially passes through the pinwheel, the probe device 5, the pinwheel, the punching device 6 and the detection device II 8, and is rolled by the second reel 3.
The probe device 5 comprises a fixed box 9, wherein the fixed box 9 is of a hollow cavity structure with an opening on the side wall, a driving component 10, a detection component 11 for detection and an appearance detection marking component 12 arranged between the detection components 11 are arranged in the fixed box 9, the driving component 10 is arranged on the inner side wall of the fixed box 9, the detection component 11 is arranged on the driving component 10, and the appearance detection marking component 12 is arranged on the driving component 10; the driving assembly 10 comprises three groups of fixing pieces 13 for supporting, the fixing pieces 13 are sequentially arranged on the side wall of the fixing box 9 from bottom to top and named as a first fixing piece 14, a second fixing piece 15 and a third fixing piece 16, namely, the first fixing piece 14 is arranged at the bottommost end, the third fixing piece 16 is arranged at the topmost end, the first fixing piece 14 and the third fixing piece 16 are fixedly connected with the inner side wall of the fixing box 9, the first fixing piece 14 is provided with a regulating and controlling assembly 17, the second fixing piece 15 is arranged on the regulating and controlling assembly 17, the fixing pieces 13 are all provided with clamping pieces 18, the fixing pieces 13 are movably clamped with driving pieces 19, the bottom wall of the driving piece 19 is provided with clamping grooves 20, the clamping grooves 20 are matched with the clamping pieces 18, the driving pieces 19 are movably clamped on the upper wall of the fixing piece 13 through the clamping grooves 20 and the clamping pieces 18, the upper wall of the driving piece 19 is provided with tooth conditions 21, the fixed part 13 is provided with support plates 22 on two opposite side walls, the fixed part 9 is internally provided with a hydraulic rod 23, the movable end of the hydraulic rod 23 is connected with one end of a driving part 19 on a first fixed part 14, the support plates 22 are movably provided with gears 24, the gears 24 are arranged at the upper ends of tooth conditions 21 and are meshed with a rack part 21, the fixed part 9 is internally movably provided with a gear part 25, the gear part 25 is in a cylindrical structure, the gear part 25 movably penetrates through the fixed part 13, the upper end of the gear part 25 is arranged on the upper wall of the uppermost fixed part 13, the lower end of the gear part 25 is arranged below the bottom wall of the lowermost fixed part 13, the gears 24 are meshed with the gear part 25, two opposite side walls of the first fixed part 14 are provided with fixed plates 65, and the regulating and controlling assembly 17 is arranged at the upper end of the fixed plates 65;
the hydraulic rod 23 connected with the driving piece 19 at the lowest end works to push the driving piece 19 at the lowest end to move from right to left, the tooth condition 21 moves from right to left, the tooth condition 21 drives the gear 24 to rotate clockwise, the gear 24 drives the tooth condition 21 meshed with the gear to lift, in the process of lifting the tooth condition 21, the rest gears 24 meshed with the gear are driven to rotate clockwise, and the gear 24 drives the rack piece 21 meshed with the gear to move leftwards, so that the synchronous detection function of chips is realized.
The fixed plate 65 is provided with a chute 26, the side wall of the fixed plate 65 is connected with a mounting piece 27, the regulating and controlling component 17 comprises a motor 28, the motor 28 is mounted in the mounting piece 27, the upper wall of the mounting piece 27 is movably provided with a first gear 29, the output shaft end of the motor 28 penetrates through the upper wall of the mounting piece 27 and is connected with the center of the first gear 29, the fixed plate 65 is movably clamped with a fixed column 30, the lower end of the fixed column 30 is movably clamped in the chute 26, the middle position of the fixed column 30 is provided with a second gear 31, the second gear 31 is meshed and connected with the first gear 29, and the bottom wall of the second fixed piece 15 is connected with the upper end of the fixed column 30;
it should be noted that, the motor 28 works to drive the first gear 29 to rotate, the first gear 29 drives the second gear 31 meshed with the first gear 29 to rotate, the second gear 31 drives the fixing post 30 to rotate, the fixing post 30 drives the second fixing member 15 thereon to rotate, and the direction is adjusted.
The detection assembly 11 comprises a pressing plate 32, the pressing plate 32 is connected with the other end of the driving member 19, a plurality of groups of air inflation needles 33 for cleaning pins and a plurality of groups of probes 34 for detecting the flexible circuit board 4 are arranged on the pressing plate 32, the air inflation needles 33 are arranged at the upper ends of the probes 34, the length of the air inflation needles 33 is smaller than that of the probes 34, the other end of the driving member 19 is also provided with a fixing assembly, the fixing assembly comprises a bag-shaped member 35, one end of the bag-shaped member 35 is connected with the side wall of the other end of the driving member 19, a base plate 36 is arranged at the other end of the bag-shaped member 35, the base plate 36 is made of rubber material and is light, a plurality of groups of vent holes 37 for conveying air are arranged on the side wall of the other end of the driving member 19, the vent holes 37 are communicated with the bag-shaped member 35, a vent cavity 38 is arranged in the pressing plate 32, the vent holes 37 are communicated with the vent cavity 38, the vent cavity 38 is communicated with the air inflation needles 33, a spring 39 is connected between the base plate 36 and the driving member 19, and the spring 39 is a weak elastic spring;
it should be noted that, when the driving member 19 pushes the fixing assembly and the pushing plate 32 to approach the flexible circuit board 4, the pad 36 is pressed onto the flexible circuit board 4, and as the driving member 19 is pushed further, the pad 36 fixes the flexible circuit board 4, meanwhile, the first spring 39 and the capsule 35 compress, the internal air enters the first ventilation cavity 38 through the first ventilation hole 37 and is discharged through the air-flushing needle 33, the pins are cleaned, and as the driving member 19 is moved further, the probe 34 contacts with the pins, and electrical detection is performed on the flexible circuit board 4.
The appearance detection marking assembly 12 comprises an optical lens 40, the optical lens 40 is arranged on the side wall of the driving piece 19 on the second fixing piece 15, the optical lens 40 is of high resolution, foreign matters, glue spreading conditions, material scratches and the like on the flexible circuit board 4 can be detected, the appearance detection marking assembly 12 further comprises a marking pen 41, the marking pen 41 is arranged on the side wall of the other end of the driving piece 19, and when the detection assembly 11 detects that the flexible circuit board 4 is an unqualified product, the marking pen 41 marks the product, so that the subsequent punching device 6 can process the product conveniently;
it should be noted that, initially, under the action of the motor 28, the fixing part two 15 and the fixing part one 14 are vertically placed, and the marking pen 41 is disposed inside the fixing box 9, when the fixing part one 14 moves horizontally, the driving part 19 on the fixing part two 15 is driven to move vertically inwards when the gear part 25 is driven to move upwards, the driving part 19 drives the optical lens 40 to move inwards, appearance detection is performed on the flexible circuit board 4, if the detection component 11 detects that the flexible circuit board 4 is a defective product, the marking pen 41 marks the product, the hydraulic rod 23 drives the driving part 19 to retract to an inactive state, the motor 28 works to drive the gear one 29 to rotate, the gear one 29 drives the gear two 31 meshed with the gear one to rotate, the gear two 31 drives the fixing post 30 to rotate, the fixing part two 15 on the fixing post 30 is driven to rotate, the fixing part two 15 is adjusted to a position parallel to the fixing part one 14, the marking pen 41 is placed close to the flexible circuit board 4, meanwhile, the hydraulic rod 23 works again, the driving part 19 is driven to move from right to left, and the probe 34 detects the flexible circuit board 4 again, and the marking pen 41 marks the flexible circuit board 4.
The fixed part 13 is provided with a limiting part 42, the side wall of the gear part 25 is provided with a limiting groove 43, the limiting part 42 and the limiting groove 43 are matched, and when the gear part 25 movably penetrates through the fixed part 13, the limiting part 42 on the fixed part 13 is clamped in the limiting groove 43, and the fixed part 13 limits the displacement of the gear part 25.
The upper wall in the fixed box 9 is connected with an air bag member I44, the air bag member I44 is made of flexible materials, the lower end of the air bag member I44 is provided with a squeezing plate I45, the bottom wall of the squeezing plate I45 is connected with the upper end of the gear member 25, the inner wall of the fixed box 9 is provided with a cleaning component I46, the cleaning component I46 is placed close to the detection device I7, after the detection device I7 detects that a chip is arranged on the flexible circuit board 4, the flexible circuit board 4 is cleaned by the cleaning component I46, the cleaning component I46 comprises a cleaning box 47, a channel 48 which is convenient for the flexible circuit board 4 to pass through is arranged in the middle of the cleaning box 47, two opposite side walls of the channel 48 of the cleaning box 47 are provided with cleaning holes 49, a pipeline I50 is connected between the bottom wall of the cleaning box 47 and the upper wall of the fixed box 9, the inner upper wall of the fixed box 9 is provided with a plurality of groups of vent holes II 51 used for conveying gas, the vent holes II 51 are communicated with the air bag member I44, the inner upper wall of the fixed box 9 is internally provided with a vent cavity II 52, the vent holes II 51 are communicated with the vent holes 52, the vent holes 52 are communicated with the vent holes 52 through the vent holes 52, the vent holes 53 are communicated with the vent holes 53 and the vent holes 53 are communicated with the vent holes 53;
it should be noted that, when the first gear member 25 pushes the first extrusion plate 45 to move upwards, the first extrusion plate 45 extrudes the first air bag member 44, and as the first gear member 25 is pushed further, the first extrusion plate 45 extrudes the first air bag member 44, meanwhile, the second spring 53 and the first telescopic rod 54 compress, and the internal air enters the second ventilation cavity 52 through the second ventilation hole 51 and enters the cleaning box 47 through the first pipe 50, and is discharged through the cleaning hole 49, so as to clean the flexible circuit board 4, thereby reducing errors.
The inner bottom wall of the fixed box 9 is connected with an air bag part II 55, the air bag part II 55 is made of flexible materials, the upper end of the air bag part II 55 is provided with a squeezing plate II 56, the upper wall of the squeezing plate II 56 is connected with the lower end of the gear part 25, the inner wall of the test box 1 is provided with a cleaning component II 57, the cleaning component II 57 is arranged between the punching device 6 and the detection device II 8, the cleaning component II 57 cleans the flexible circuit board 4, the cleaning component II 57 comprises a cleaning box 47, a channel 48 which is convenient for the flexible circuit board 4 to pass through is arranged in the middle of the cleaning box 47, two opposite side walls of the channel 48 of the cleaning box 47 are provided with cleaning holes 49, a pipeline II 58 is connected between the bottom wall of the cleaning box 47 and the upper wall of the fixed box 9, the inner bottom wall of the fixed box 9 is provided with a plurality of groups of vent holes III 59 for conveying gas, the vent holes III 59 are in through connection with the air bag part II 55, the inner bottom wall of the fixed box 9 is internally provided with a vent cavity III 60, the vent holes III 60 are in through connection with the vent cavity III 60, the vent cavity III 60 is in through connection with the pipeline II 58, the vent cavity II is in through connection with the pipeline II 58, the opposite side walls of the channel 48 are in connection with the opposite side walls of the channel 48, the upper wall is in connection with the upper wall of the fixed box 9 and the vent box is provided with a third spring 61;
it should be noted that, when the second gear member 25 pushes the second extrusion plate 56 to move downward, the second extrusion plate 56 extrudes the second air bag member 55, and as the second gear member 25 is pushed further, the second extrusion plate 56 extrudes the second air bag member 55, meanwhile, the third spring 61 and the second expansion link 62 compress, and the internal air enters the third ventilation chamber 60 through the third ventilation hole 59 and enters the cleaning box 47 through the second pipe 58, and is discharged through the cleaning hole 49, so as to clean the flexible circuit board 4, thereby reducing errors.
The specific use is as follows: the flexible circuit board 4 is pulled out from the first reel 2, sequentially passes through the needle wheel, the probe device 5, the needle wheel, the punching device 6 and the detecting device II 8, and then is rolled by the second reel 3, the detecting device I7 detects whether a chip to be detected exists on the flexible substrate on the first reel 2, if the chip exists, the probe device 5, the punching device 6 and the detecting device II 8 start to work, and if the chip does not exist, the probe device 5, the punching device 6 and the detecting device II 8 do not work;
when the detection device I7 detects that a chip to be detected exists on the flexible substrate on the reel I2, the probe device 5 carries out electrical detection on the flexible circuit board 4, initially, under the action of the motor 28, the fixing part II 15 and the fixing part I14 are vertically arranged, the marking pen 41 is arranged in the fixing box 9, the hydraulic rod 23 works to push the driving part 19 at the lowest end to move from right to left, the tooth condition 21 moves from right to left, the tooth condition 21 drives the gear 24 to rotate clockwise, the gear 24 drives the tooth condition 21 meshed with the gear 24 to lift, in the process of lifting the tooth condition 21, the rest gears 24 meshed with the gear 24 are driven to rotate clockwise, the gear 24 drives the uppermost tooth condition 21 meshed with the gear to move leftwards, and the pad 36 is extruded onto the flexible circuit board 4 when the driving part 19 pushes the fixing component and the pushing plate 32 to be close to the flexible circuit board 4, with the further pushing of the driving piece 19, the cushion plate 36 fixes the flexible circuit board 4, meanwhile, the first spring 39 and the bag-shaped piece 35 are compressed, the internal air enters the first ventilation cavity 38 through the first ventilation hole 37 and is discharged through the air flushing needle 33, the pins are cleaned, errors are reduced, with the further moving of the driving piece 19, the probe 34 contacts with the pins to electrically detect the flexible circuit board 4, meanwhile, when the first fixing piece 14 moves horizontally, the gear piece 25 is driven to move upwards, the driving piece 19 on the second fixing piece 15 can be driven to move vertically inwards, the driving piece 19 drives the optical lens 40 to move inwards, appearance detection is carried out on the flexible circuit board 4, if the detection assembly 11 detects that the flexible circuit board 4 is an unqualified product, the marking pen 41 is required to mark the product, and after the hydraulic rod 23 drives the driving piece 19 to retract to an unoperated state, the motor 28 works to drive the gear I29 to rotate, the gear I29 drives the gear II 31 meshed with the gear I to rotate, the gear II 31 drives the fixed column 30 to rotate, the fixed column 30 drives the fixed part II 15 on the fixed column to rotate, the fixed part II 15 is adjusted to be parallel to the fixed part I14, the marking pen 41 is placed close to the flexible circuit board 4, meanwhile, the hydraulic rod 23 works again to push the driving part 19 to move from right to left, the probe 34 detects the flexible circuit board 4 again, and meanwhile, the marking pen 41 marks the flexible circuit board 4;
after the marked flexible circuit board 4 moves to the punching device 6, the punching device 6 detects that the flexible circuit board 4 is marked, the marked flexible circuit board 4 is impacted, and after an unqualified chip is punched down, further detection is carried out; the second detection device 8 detects whether the stamping and punching positions of the unqualified products on the flexible circuit board 4 have offset;
meanwhile, when the first gear piece 25 pushes the first extrusion plate 45 to move upwards, the first extrusion plate 45 extrudes the first air bag piece 44, and as the first gear piece 25 is pushed further, the first extrusion plate 45 extrudes the first air bag piece 44, meanwhile, the second spring 53 and the first telescopic rod 54 are compressed, internal air enters the second ventilation cavity 52 through the second ventilation hole 51 and enters the cleaning box 47 through the first pipeline 50, and is discharged through the cleaning hole 49, so that the flexible circuit board 4 is cleaned, and errors are reduced;
when the gear member 25 pushes the second extrusion plate 56 to move downwards, the second extrusion plate 56 extrudes the second air bag member 55, and as the gear member 25 is pushed further, the second extrusion plate 56 extrudes the second air bag member 55, meanwhile, the third spring 61 and the second telescopic rod 62 compress, and internal air enters the third ventilation cavity 60 through the third ventilation hole 59 and enters the cleaning box 47 through the second pipeline 58 and is discharged through the cleaning hole 49, so that the flexible circuit board 4 is cleaned.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (6)
1. The utility model provides an electrical property testing arrangement is used in COF encapsulation, includes the test box, be equipped with reel one and reel two in the test box, place the flexible circuit board after the encapsulation that needs to detect on the reel one, reel two is used for carrying out rolling processing to the flexible circuit board after detecting, place multiunit needle wheel that is used for driving the flexible circuit board in the test box, the needle wheel is located between reel one and reel two, its characterized in that, still place probe device that is used for detecting in the test box, be used for carrying out punching press device to the unfinished product, be used for detecting whether have the detection device of chip one and judge whether unqualified product punching press and punching a hole position have detection device second of skew on the flexible circuit board;
the first detection device is arranged close to the first winding wheel and is used for detecting whether a chip to be detected exists on the flexible substrate on the first winding wheel, if the chip exists, the probe device, the punching device and the second detection device start to work, and if the chip does not exist, the probe device, the punching device and the second detection device do not work;
the probe device is arranged among a plurality of groups of needle wheels, the punching device is arranged at the lower end of the probe device, and the second detection device is arranged close to the second winding wheel;
the probe device comprises a fixed box, wherein the fixed box is of a hollow cavity structure with an opening on the side wall, a driving assembly, a detection assembly for detection and an appearance detection marking assembly arranged between the detection assemblies are arranged in the fixed box, the driving assembly is arranged on the inner side wall of the fixed box, the detection assembly is arranged on the driving assembly, and the appearance detection marking assembly is arranged on the driving assembly;
the driving assembly comprises a plurality of groups of fixing pieces used for supporting, the fixing pieces are sequentially arranged on the side wall of the fixing box from bottom to top and are named as a first fixing piece, a second fixing piece and a third fixing piece;
the fixed plate is provided with a chute, the side wall of the fixed plate is connected with a mounting part, the regulating and controlling assembly comprises a motor, the motor is mounted in the mounting part, the upper wall of the mounting part is movably provided with a first gear, the output shaft end of the motor penetrates through the upper wall of the mounting part and is connected with the center of the first gear, the fixed plate is movably clamped with a fixed column, the lower end of the fixed column is movably clamped in the chute, the middle position of the fixed column is provided with a second gear, the second gear is meshed with the first gear, and the bottom wall of the second fixed part is connected with the upper end of the fixed column;
the detection assembly comprises a pushing plate, the pushing plate is connected with the other end of the driving piece, a plurality of groups of air flushing needles for cleaning pins and a plurality of groups of probes for detecting the flexible circuit board are arranged on the pushing plate, the air flushing needles are arranged at the upper end of the probes, the length of the air flushing needles is smaller than that of the probes, the other end of the driving piece is further provided with a fixing assembly, the fixing assembly comprises a bag-shaped piece, one end of the bag-shaped piece is connected with the side wall of the other end of the driving piece, the other end of the bag-shaped piece is provided with a base plate, a plurality of groups of vent holes I for conveying gas are arranged on the side wall of the other end of the driving piece, the vent holes I are in through connection with the bag-shaped piece, the vent holes I are in through connection with the vent holes I, the vent holes I are in through connection with the air flushing needles, and a spring I is connected between the base plate and the driving piece.
2. The electrical testing device for COF package of claim 1, wherein the appearance detecting and marking assembly comprises an optical lens, the optical lens is disposed on a side wall of the driving member on the second fixing member, the appearance detecting and marking assembly further comprises a marking pen, and the marking pen is disposed on a side wall of the other end of the driving member.
3. The electrical testing device for COF package of claim 2, wherein the fixing member is provided with a limiting member, and the side wall of the gear member is provided with a limiting groove, and the limiting member and the limiting groove are arranged in a matching manner.
4. The electrical testing device for COF packaging of claim 3, wherein the first air bag member is connected to the upper wall in the fixed box, the first air bag member is made of flexible material, the first extrusion plate is installed at the lower end of the first air bag member, the bottom wall of the first extrusion plate is connected to the upper end of the gear member, the first cleaning assembly is installed on the inner wall of the test box and is placed close to the first detection device, the first cleaning assembly comprises a cleaning box, a channel for facilitating the passage of the flexible circuit board is arranged in the middle of the cleaning box, cleaning holes are formed in two opposite side walls of the channel of the cleaning box, a pipeline I is connected between the bottom wall of the cleaning box and the upper wall of the fixed box, a plurality of groups of vent holes for conveying gas are formed in the upper wall in the fixed box, the second vent holes are connected with the first air bag member in a penetrating manner, the second vent holes are connected with the second vent holes in a penetrating manner, the second vent holes are connected with the first pipeline in a penetrating manner, and a spring second telescopic rod is connected between the first extrusion plate and the upper wall in the fixed box.
5. The electrical testing device for COF packaging of claim 4, wherein the second air bag member is connected to the inner bottom wall of the fixed box, the second air bag member is made of flexible materials, the second extrusion plate is installed at the upper end of the second air bag member, the upper wall of the second extrusion plate is connected to the lower end of the gear member, the second cleaning assembly is installed on the inner wall of the test box, the second cleaning assembly is arranged between the punching device and the second detection device, the second cleaning assembly comprises a cleaning box, a channel for facilitating the passage of the flexible circuit board is arranged in the middle of the cleaning box, cleaning holes are formed in two opposite side walls of the channel of the cleaning box, a pipeline second is connected between the bottom wall of the cleaning box and the upper wall of the fixed box, a plurality of groups of air holes for conveying gas are formed in the inner bottom wall of the fixed box, the air holes third air holes are connected with the second air bag member in a penetrating manner, the air holes third air holes are connected with the air holes in the inner bottom wall of the fixed box, the air holes third air holes are connected with the air holes in a penetrating manner, and the third air holes are connected with the upper wall of the fixed box, and a third spring and a second telescopic rod are connected between the extrusion plate and the upper wall of the fixed box.
6. The electrical testing device for COF packages of claim 5, wherein a controller is mounted outside the fixing case, and the controller is electrically connected to the probe device, the punching device, the first detecting device and the second detecting device.
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| CN202311243354.4A CN116990673B (en) | 2023-09-26 | 2023-09-26 | Electrical testing device for COF packaging |
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| CN202311243354.4A CN116990673B (en) | 2023-09-26 | 2023-09-26 | Electrical testing device for COF packaging |
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| CN116990673B true CN116990673B (en) | 2023-12-12 |
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| KR20230090690A (en) * | 2021-12-15 | 2023-06-22 | 주식회사 오라컴 | Automation system for function test and packaging of flexible circuit board and method for function test and packaging of flexible circuit board using the same |
| CN114646868A (en) * | 2022-05-21 | 2022-06-21 | 东莞市煜锦实业有限公司 | Intelligent test needle mold equipment for FPC performance test |
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| CN116990673A (en) | 2023-11-03 |
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