CN117079709A - Flash memory test equipment and test method - Google Patents
Flash memory test equipment and test method Download PDFInfo
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- CN117079709A CN117079709A CN202311153178.5A CN202311153178A CN117079709A CN 117079709 A CN117079709 A CN 117079709A CN 202311153178 A CN202311153178 A CN 202311153178A CN 117079709 A CN117079709 A CN 117079709A
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- 238000012360 testing method Methods 0.000 title claims abstract description 169
- 230000015654 memory Effects 0.000 title claims abstract description 138
- 238000010998 test method Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/56—External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/38—Collecting or arranging articles in groups
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
Abstract
The invention provides flash memory test equipment, which comprises a machine body, a test part, a grabbing part, a material storage part and a control part arranged on the machine body, wherein the test part, the grabbing part and the material storage part are controlled by the control part, the material storage part comprises a plurality of placing boxes, lifters are arranged on the placing boxes, a plurality of trays for placing flash memories are stacked on the placing boxes, the lifters can drive the placing boxes to drive the trays to lift, and the placing boxes respectively form a raw material area, a discharging area and an empty tray area. The test equipment achieves the purposes of automatic test and automatic classification, improves the test efficiency, reduces the risk of damage of the flash memory in test, effectively reduces human intervention, and further improves the production efficiency and yield under the automatic operation of the equipment, thereby having good test effect.
Description
Technical Field
The invention relates to the technical field of semiconductor testing, in particular to flash memory testing equipment and a testing method.
Background
With the continuous development of semiconductor technology, the requirements of flash memories are gradually increased, the flash memories need to be tested in the production process, after the test is completed, the chips need to be classified according to the test results, the classification can be divided into multiple types according to the performance, and the chips need to be classified according to the capacity, so that the chips need to be classified in time, and reference is provided for subsequent production.
At present, when a flash memory is tested, the flash memory is required to be detected through a circuit board, a computer is manually used to divide the flash memory into different capacities through the obtained detection result, and then manual or equipment loading is performed. However, because of the excessive flash memory capacity level, the manual detection is easy to place the error position, causes the compounding condition of different capacities, if the compounding is to be selected, the whole charging tray is required to be re-detected again, causes the problems of repeated production and poor quality, and has the problems of lower classification efficiency and easy caused artificial misloss.
In view of the foregoing, it is necessary to provide a solution to the above-mentioned problems.
Disclosure of Invention
The invention aims at: a flash memory testing device and a testing method are provided to solve the problems that the classification efficiency is low and the artificial defect is easily caused in the process of testing the flash memory manually.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a flash memory test equipment, includes organism, test part, snatchs part, material storage part and sets up control part on the organism, test part, snatch part, material storage part all are controlled by control part, material storage part includes a plurality of boxes of placing, sets up the riser of placing the box, place the box on range upon range of place a plurality of trays that are used for placing flash memory, the riser can drive place the box drive the tray goes up and down, a plurality of place the box and form raw materials district, blowing district and empty disc district respectively, control part is used for control snatch part will the flash memory of raw materials district removes to test part test, and will test part is last to the flash memory of test moves to the blowing district, and control snatch part will the empty disc of raw materials district removes to empty disc district and will empty disc of empty disc district moves to the blowing district is corresponding place on the box.
As an improvement of the flash memory test equipment, the test part comprises a plurality of test seats, the test seats are provided with connecting grooves for placing and connecting the flash memory to be tested, and the test seats are uniformly distributed at straight intervals.
As an improvement of the flash memory test device, a plurality of the placement boxes are respectively and uniformly distributed on two opposite sides of a straight line formed by the test seat.
As an improvement of the flash memory test device, the gripping member includes a longitudinal linear driver provided on the body, a transverse linear driver mounted on the longitudinal linear driver, and a gripping member mounted on the transverse linear driver, the longitudinal linear driver and the transverse linear driver being respectively used for driving the gripping member to move transversely and longitudinally, and the gripping member being used for gripping and placing the flash memory or the empty disc in a lifting motion.
As an improvement of the flash memory test device, the gripping member comprises a plurality of grippers, the distance between the grippers is equal to the distance between the test seats, and a plurality of flash memories to be tested can be gripped simultaneously and moved onto the connecting grooves of the test seats.
As an improvement of the flash memory test device, the top of the placement box is provided with a limiting piece, and the limiting piece can be abutted with the top-most tray on the placement box and fixedly limited.
As an improvement of the flash memory test device, a protective cover is arranged on the top of the machine body, the protective cover is of a frame structure, and at least two sides of the protective cover, relative to the material storage part, are open.
A method for testing a flash memory test device, the test device being the flash memory test device described above, the method comprising the steps of:
s1, dividing the quantity of the placing boxes in the raw material area, the discharging area and the empty disc area through the control part, and filling the flash memories to be tested with the material discs on the placing boxes of the raw material area;
s2, starting the control part to operate, wherein the control part controls the grabbing part to grab the flash memory to be tested in the raw material area to a test part for testing, and the control part acquires data information of the flash memory through the test part and classifies the flash memory according to the data information so as to control the grabbing part to grab the tested flash memory to the tray of the placing box corresponding to the discharging area;
s3, after the control part detects that the tray at the topmost side of the placement box in the raw material area is empty, the grabbing part is controlled to grab the empty tray to the empty tray area, and then the placement box in the raw material area drives the tray to ascend through the lifter so as to test the flash memory to be tested on the next layer of tray; or after detecting that the tray at the topmost side of the placement box in the discharging area is full, the lifter drives the tray of the placement box to integrally descend, and then the grabbing component is controlled to grab the empty tray at the topmost side of the placement box.
S4, stopping the operation of the testing equipment until the flash memory to be tested in the raw material area is completely tested or the material tray in the material discharging area is full.
As an improvement of the test method, in S3, after the trays are empty in the single placement box in the stock area, the control section automatically defines the placement box as the stock area or the empty tray area according to a setting.
As an improvement of the test method, in the step S3, the control unit records the number of flash memories of the tray on each placement box in real time according to the grabbing coordinates and the number of grabbing times of the grabbing unit during the grabbing of the flash memories.
Compared with the prior art, the invention has the beneficial effects that:
1) According to the invention, a plurality of placing boxes are proportionally classified into a raw material area for placing the flash memory to be tested, a discharging area for storing the tested flash memory and an empty disc area for accommodating an empty disc, the flash memory to be tested in the raw material area is grabbed to a test part for test by a control part, and then the flash memory is moved to the disc on the corresponding placing box in the discharging area according to a test result, so that the purposes of automatically testing and automatically classifying the flash memory are achieved, the test efficiency is improved, and the risk of damage of the flash memory in the test is reduced.
2) In the testing process, the control part can monitor the quantity of the flash memories of the trays on each placing box, control the grabbing part to grab the empty trays on the placing box in the raw material area to the empty tray area, control the placing box to drive the trays to rise one layer, continue the flash memory test of the tray in the next layer of the placing box, control the placing box to drive the trays to fall one layer after detecting that the tray at the topmost side on the placing box in the discharging area is full, and grab the single empty tray of the empty tray area to be placed at the topmost side of the placing box, thereby increasing the quantity of the flash memories tested once, effectively reducing human intervention, and further improving the production efficiency and the yield under the automatic operation of equipment.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic perspective view of a flash memory testing device according to the present invention.
Fig. 2 is a schematic diagram of a partial perspective view of a flash memory testing apparatus according to the present invention.
Fig. 3 is a top view of a portion of a flash memory test device according to the present invention.
Fig. 4 is a schematic partial perspective view of a grabbing component of a flash memory testing apparatus according to the present invention.
Fig. 5 is a schematic diagram showing a second perspective view of a portion of a flash memory testing apparatus according to the present invention.
Fig. 6 is a schematic perspective view of a limiting member of a flash memory testing apparatus according to the present invention.
Fig. 7 is a flowchart of a testing method of a flash memory testing device according to the present invention.
In the figure: 1-organism, 101-protection casing, 2-test part, 21-test board, 22-test seat, 3-snatch part, 31-first guide rail, 32-first slider, 33-first mount pad, 34-first driving piece, 35-second guide rail, 36-second mount pad, 37-second driving piece, 38-grabber, 4-material storage part, 41-box of placing, 42-riser, 43-charging tray, 44-board of placing, 5-control part, 6-locating part, 61-supporting seat, 62-briquetting, 63-connecting rod, 64-electric putter.
Detailed Description
In order to make the technical scheme and advantages of the present invention more apparent, the present invention and its advantageous effects will be described in further detail below with reference to the detailed description and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.
As shown in fig. 1 to 6, a flash memory test device includes a machine body 1, a test part 2, a grabbing part 3, a material storage part 4 and a control part 5 disposed on the machine body 1, where the test part 2, the grabbing part 3, and the material storage part 4 are controlled by the control part 5, the material storage part 4 includes a plurality of placement boxes 41, a lifter 42 disposed on the placement boxes 41, a plurality of trays 43 for placing flash memories are stacked on the placement boxes 41, the lifter 42 can drive the placement boxes 41 to drive the trays 43 to lift, the placement boxes 41 respectively form a raw material area, a discharge area and an empty area, the control part 5 is used for controlling the grabbing part 3 to move the flash memory in the raw material area to the test part 2 for testing, and controlling the grabbing part 3 to move the flash memory in the test part 2 to the discharge area, and move the empty tray 43 in the raw material area to the empty area to the corresponding placement box 41.
Specifically, organism 1 still includes the protection casing 101 that sets up its top, and test part 2, snatch part 3 and material storage part 4 all are located the protection casing 101 inboard, and test part 2 is located organism 1 top, and a plurality of boxes 41 of placing all are close to test part 2, snatch part 3 and be located the top of material storage part 4 and test part 2, and can be moved and do the elevating movement around four positions and snatch and place the flash memory on the charging tray 43, place the quantity of box 41 and set up to 12, can range upon range of place twenty charging trays 43 on the single box 41 of placing. The placing boxes 41 are provided with placing plates 44 which can slide up and down, the lifters 42 drive the placing plates 44 to move up and down, and the lifters 42 can drive the placing plates 44 to lift by adopting a mode of arranging air cylinders. The control unit 5 comprises a main control computer, the test unit 2, the grabbing unit 3 and the lifter 42 are controlled by the main control computer, a display is arranged on the outer side of the machine body 1 and connected with the main control computer, and the display is used for displaying a control interface and test data of the main control computer.
According to the invention, a plurality of placing boxes 41 are proportionally classified into a raw material area for placing the flash memory to be tested, a discharging area for storing the tested flash memory and an empty disc area for accommodating the empty disc 43, the flash memory to be tested in the raw material area is grabbed to the testing part 2 for testing by the control part 5, and then the flash memory is moved to the corresponding placing box 41 in the discharging area according to the testing result, so that the purposes of automatically testing and automatically classifying the flash memory are achieved, the testing efficiency is improved, and the risk of damage of the flash memory in testing is reduced. In the testing process, the control part 5 can also monitor the quantity of the flash memories of the trays 43 on each placing box 41, control the grabbing part 3 to grab the empty tray 43 on the material area placing box 41 to the empty tray area, control the placing box 41 to drive the tray 43 to rise to a layer, continuously test the flash memories of the tray 43 on the next layer of the placing box 41, control the placing box 41 to drive the tray 43 to descend to a layer after detecting that the tray 43 on the top of the placing box 41 on the material placing area is full, and grab the single empty tray 43 of the empty tray area to be placed on the top of the placing box 41, thereby increasing the quantity of the flash memories tested once, effectively reducing human intervention, and further improving the production efficiency and the yield under the automatic operation of equipment.
In some embodiments, the test part 2 includes a plurality of test boards 21, each test board 21 has a test socket 22 for placing and connecting the flash memory to be tested, and the plurality of test boards 21 are uniformly distributed at a linear interval. Specifically, the total number of the test boards 21 is 32, the test boards 21 are divided into two groups, the number of one group of the test boards 21 is 16, the two groups of the test boards 21 are transversely distributed side by side to form a straight line, the test seat 22 is located on the top surface of the test boards 21, and the test boards 21 are electrically connected with the control part 5 through circuits. The grabbing component 3 grabs the flash memory in the raw material area into the test seat 22 at the top of the test board 21, the flash memory is connected with the test board 21 through the test seat 22, the test board 21 tests the flash memory in the test seat 22 and feeds back the tested data to the control component 5, the automatic test of the flash memory is completed, the control component 5 classifies the flash memory according to the fed back data, and then the grabbing component 3 grabs the tested flash memory into the material tray 43 on the corresponding placement box 41 in the material discharging area, so that the purpose of automatically testing and classifying the flash memory is achieved, and 32 test boards 21 are arranged, so that the speed of testing the flash memory is greatly improved, and meanwhile, the labor cost is further saved. The number of test boards 21 and test seats 22 is not limited herein, and in other embodiments, the number of test boards 21 and test seats 22 may be adjusted according to the need or the number of placement boxes 41.
In some embodiments, a plurality of placement boxes 41 are uniformly distributed on opposite sides of a straight line formed by the test plate 21, respectively. Specifically, placing box 41 quantity is 12, and 12 place box 41 and set up respectively in the both sides around the straight line that test board 21 formed, and box 41 quantity is 6 to placing to one side, and all is horizontal straight line and arranges, will place box 41 and distribute so, has shortened the raw materials district and has placed the distance between box 41 and the test board 21, and the test board 21 is placed the distance between box 41 with the blowing district for snatch the distance that part 3 snatched flash memory and remove is shortened, further has saved test time. The number of placement boxes 41 is not limited herein, and in other embodiments, the number of corresponding placement boxes 41 may be adjusted as desired.
In some embodiments, the gripping member 3 comprises a longitudinal linear actuator provided on the machine body 1, a transverse linear actuator mounted on the longitudinal linear actuator, and gripping members mounted on the transverse linear actuator, the longitudinal linear actuator and the transverse linear actuator being respectively used for driving the gripping members to move transversely and longitudinally, the gripping members being used for gripping and placing the flash memory or empty disc in a lifting motion. Specifically, the longitudinal linear driver includes first guide rails 31 disposed on left and right sides of the top of the machine body 1, first sliding blocks 32 are disposed on the first guide rails 31, a first mounting seat 33 is disposed between the tops of the first sliding blocks 32, a first driving member 34 is disposed on the first guide rail 31 on at least one side, and the driving member is connected with and matched with a similar sliding block to drive the first mounting seat 33 to slide back and forth on the first guide rail 31. The transverse linear driver comprises a second guide rail 35 arranged along the length direction of the first mounting seat 33, a second mounting seat 36 is slidably arranged on the second guide rail 35, a second driving piece 37 is arranged on the first mounting seat 33, the second driving piece 37 is connected with the second mounting seat 36 and matched with the second mounting seat, the second mounting seat 36 is used for driving the second mounting seat 35 to slide left and right on the second guide rail 35, and a grabbing piece is arranged on the front side of the second mounting seat 36 and used for grabbing and placing the flash memory and the empty tray 43 through lifting motion. The grabbing parts can be driven to move back and forth and left and right to grab the flash memory and the empty disc on each placement box 41, and the first driving part 34 and the second driving part 37 drive the grabbing parts to move back and forth and left and right in a mode of screw-nut or a mode of single-side transmission of a transmission belt.
In some embodiments, the gripper includes a plurality of grippers 38, and the distance between the grippers 38 is equal to the distance between the test boards 21, so that a plurality of flash memories to be tested can be simultaneously gripped and moved onto the test seats 22 of the test boards 21. Specifically, the grabbing piece comprises four grabbers 38 evenly arranged at intervals, the grabbers 38 are controlled by the control component 5, the control component 5 can control the grabbers 38 to automatically lift and grab the flash memory and the empty material tray 43, the grabbers 38 lift and operate in a hydraulic or cylinder-setting mode, and the grabbers 38 grab and fix the flash memory and the empty material tray 43 through sucking discs. When the grabbing piece is driven to a designated position through the longitudinal linear driver and the transverse linear driver, namely, is located right above the flash memory or the empty tray 43, the grabber 38 descends to fix the flash memory or the empty tray 43 through the suction nozzle, so that grabbing is completed, four flash memory tests and classification can be simultaneously grabbed, and the four test boards 21 are in a group, so that the four grabbers 38 can simultaneously grab and place, the grabbing speed and the testing efficiency are further improved, the number of times that the grabbing piece needs to move in the single-wheel test process is reduced, the electric power cost is saved, and the loss is reduced. The number of grippers 38 is not limited herein, and in other embodiments, a corresponding number of grippers 38 may be provided, depending on the requirements and the number of test seats 22 and placement cassettes 41.
In some embodiments, the top of the placement box 41 is provided with a limiting piece 6, and the limiting piece 6 can be abutted and fixedly limited with the top-most tray 43 on the placement box 41. Specifically, when the control part 5 detects that the top-most tray 43 of the first placement box 41 in the raw material area is an empty tray, the empty tray 43 needs to be grabbed to the empty tray area, or when the top-most tray 43 of the first placement box 41 in the discharging area is detected to be full, the empty tray 43 needs to be grabbed from the empty tray area and placed, the control part 5 needs to control the limiting piece 6 to be opened first so that the tray 43 can be taken out and placed, when the empty tray 43 in the raw material area is taken out, or when the top-most tray 43 of the first placement box 41 in the discharging area is placed, the control part 5 controls the limiting piece 6 to be closed, and limits the tray 43 on the placement tray up and down, so as to prevent the grabbing part 3 from moving the tray 43 when grabbing the flash memory.
Place box 41 and be close to the four corners position and all be provided with the stopper, one of them stopper includes supporting seat 61, briquetting 62, connecting rod 63 and electric putter 64, and supporting seat 61 sets up and is placing box 41 outer wall, and briquetting 62 rotates to set up on supporting seat 61, and electric putter 64 is vertical to be set up and is placing box 41 outer wall, and is located supporting seat 61 below, and connecting rod 63 both ends are rotated with the telescopic link of briquetting 62 and electric putter 64 respectively and are connected. When the tray 43 in the placement box 41 needs to be limited, the electric push rod 64 is controlled to extend upwards, and the pressing block 62 is driven to rotate towards the tray 43 through the connecting rod 63, so that the pressing block is in butt joint with the tray 43 at the topmost side of the placement box 41. When the tray 43 needs to be contacted and limited, the electric push rod 64 is controlled to retract downwards, the pressing block 62 is pulled by the connecting rod 63 to rotate outwards to be separated from the tray 43, and further the limit is released.
In some embodiments, the top of the machine body 1 is provided with a protective cover 101, the protective cover 101 is of a frame structure, and at least two sides of the protective cover 101 opposite to the material storage part 4 are open. Specifically, the front side and the rear side of the protective cover 101 are open, so that a user can conveniently place the flash memory to be tested in the raw material area and take out the classified flash memory in the discharging area. And the left and right sides of protection casing 101 all is provided with the guard gate of rotatable switching for protection casing 101 four sides all can open, more is convenient for maintain test part 2, material storage part 4 and snatch part 3.
As shown in fig. 7, a method for testing a flash memory test device, wherein the test device is the flash memory test device, includes the following steps:
s1, dividing the number of the placing boxes 41 in a raw material area, a discharging area and an empty disc area by a control part 5, and filling the flash memories to be tested with the material discs 43 on the placing boxes 41 in the raw material area;
the classification of flash memory may be set according to requirements, such as by different capacity sizes of flash memory or by the speed of flash memory. According to different requirements and situations, the number of the placing boxes 41 corresponding to the raw material area, the discharging area and the empty disc area is set, so that the test time can be effectively saved.
S2, starting the control part 5 to operate, wherein the control part 5 controls the grabbing part 3 to grab the flash memory to be tested in the raw material area to the test part 2 for testing, the control part 5 acquires data information of the flash memory through the test part 2 and classifies the flash memory according to the data information, and further controls the grabbing part 3 to grab the tested flash memory to a material tray 43 of a placing box 41 corresponding to the material placing area;
s3, after the control part 5 detects that the tray 43 at the topmost side of the placement box 41 in the raw material area is empty, the control part 3 is controlled to grasp the empty tray 43 to the empty tray area, and then the placement box 41 in the raw material area drives the tray 43 to ascend through the lifter 42 so as to test the flash memory to be tested on the next layer of tray 43; or after detecting that the tray 43 at the topmost side of the placement box 41 in the discharging area is full, the lifter 42 drives the tray 43 of the placement box 41 to wholly descend, and then the grabbing component 3 is controlled to grab the empty tray 43 at the topmost side of the placement box 41.
The control part 5 can record the quantity of the flash memories of the trays 43 on each placing box 41 in real time in the process of grabbing the flash memories for testing, so as to achieve the purpose of real-time monitoring, thereby judging whether the trays 43 are empty and full according to the quantity of the flash memories recorded on the trays 43, further realizing the purpose of automatically placing the empty trays 43 to continuously contain the tested flash memories after the trays 43 in the discharging area are full, automatically taking out the empty trays 43 after the trays 43 in the raw material area are empty, realizing the automatic testing of the flash memories, reducing the monitoring effort of users in the testing process, enabling a single person to monitor a plurality of testing devices, and effectively reducing the labor cost.
S4, stopping the operation of the testing equipment until the flash memory to be tested in the raw material area is tested, or after the material tray 43 in the material discharging area is full.
When the control part 5 detects that the flash memories to be tested in the raw material area are all tested, or one of the types of trays 43 for placing the boxes 41 in the discharging area are full, the test equipment is controlled to stop running, and an audible and visual alarm prompt is generated to the outside so as to prompt nearby users to receive or discharge materials.
In some embodiments, in step S3, when the trays 43 in the individual placement box 41 in the stock area are empty, the control section 5 automatically defines the placement box 41 as a stock area or an empty tray area according to the setting. Specifically, when the control part 5 detects that one of the placing boxes 41 in the material placing area is full, and after all the flash memories to be tested in one of the placing boxes 41 in the material placing area are tested, the control part 5 automatically defines the empty placing box 41 in the material placing area as the material placing area, and the type is the same as the placing box 41 in the material placing area, so as to place the flash memories after the subsequent test is completed, so that after the placing box 41 in the material placing area is full, the round of test can be continued, manual intervention is reduced, and the degree of automation of the flash memory test is improved.
In some embodiments, in step S3, the control unit 5 records the number of flash memories of the tray 43 on each placement box 41 in real time according to the grabbing coordinates and the number of grabbing times of the grabbing unit 3 during the grabbing flash memory test. Specifically, the purpose of monitoring the number of flash memories on the trays 43 in each placement box 41 in real time is achieved, so that whether the trays 43 are empty or full is determined according to the recorded number of flash memories on the trays 43. In another embodiment, a plurality of vision cameras of the controlled and controlled part 5 may be provided, and the vision cameras are disposed right above the placement boxes 41, and the number of flash memories of the trays 43 on each placement box 41 is monitored in real time and fed back to the controlled part 5.
Variations and modifications of the above embodiments will occur to those skilled in the art to which the invention pertains from the foregoing disclosure and teachings. Therefore, the present invention is not limited to the above-described embodiments, but is intended to be capable of modification, substitution or variation in light thereof, which will be apparent to those skilled in the art in light of the present teachings. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (10)
1. The flash memory test equipment is characterized by comprising a machine body, a test part, a grabbing part, a material storage part and a control part arranged on the machine body, wherein the test part, the grabbing part and the material storage part are controlled by the control part, the material storage part comprises a plurality of placing boxes, lifters are arranged on the placing boxes, a plurality of trays for placing the flash memory are stacked on the placing boxes, the lifters can drive the placing boxes to drive the trays to lift, the placing boxes respectively form a raw material area, a discharging area and an empty disc area, the control part is used for controlling the grabbing part to move the flash memory in the raw material area to the test part for testing, and controlling the grabbing part to move the empty disc in the raw material area to the empty disc area and the empty disc in the empty disc area to the corresponding placing box in the discharging area.
2. A flash memory test apparatus according to claim 1, wherein the test unit comprises a plurality of test sockets each having a connection slot for receiving and connecting a flash memory to be tested, and wherein the plurality of test sockets are uniformly spaced apart in a straight line.
3. A flash memory test apparatus according to claim 2, wherein a plurality of said placement boxes are uniformly distributed on opposite sides of a line formed by said test sockets.
4. A flash memory test apparatus according to claim 3, wherein the gripping means comprises a longitudinal linear driver provided on the body, a transverse linear driver mounted on the longitudinal linear driver, and gripping members mounted on the transverse linear driver, the longitudinal linear driver and the transverse linear driver being for driving the gripping members to move laterally and longitudinally, respectively, the gripping members being for gripping and placing the flash memory or the empty disk in a lifting motion.
5. The flash memory test apparatus of claim 4, wherein the gripper comprises a plurality of grippers, the pitch between the grippers is equal to the pitch between the test sockets, and the plurality of flash memories to be tested can be simultaneously gripped and moved onto the connection slots of the test sockets.
6. A flash memory test apparatus according to claim 2, wherein the top of the placement box is provided with a stopper, and the stopper is capable of abutting against and fixing the tray at the top of the placement box.
7. The flash memory test apparatus of claim 1, wherein the body top is provided with a shield, the shield is of a frame structure, and the shield is open with respect to at least two sides of the material storage part.
8. A method of testing a flash memory test device according to any of the preceding claims 1-7, the method comprising the steps of:
s1, dividing the quantity of the placing boxes in the raw material area, the discharging area and the empty disc area through the control part, and filling the flash memories to be tested with the material discs on the placing boxes of the raw material area;
s2, starting the control part to operate, wherein the control part controls the grabbing part to grab the flash memory to be tested in the raw material area to a test part for testing, and the control part acquires data information of the flash memory through the test part and classifies the flash memory according to the data information so as to control the grabbing part to grab the tested flash memory to the tray of the placing box corresponding to the discharging area;
s3, after the control part detects that the tray at the topmost side of the placement box in the raw material area is empty, the grabbing part is controlled to grab the empty tray to the empty tray area, and then the placement box in the raw material area drives the tray to ascend through the lifter so as to test the flash memory to be tested on the next layer of tray; or after the tray at the topmost side of the placement box in the discharging area is detected to be full, the lifter drives the tray of the placement box to integrally descend, and then the grabbing component is controlled to grab the empty tray at the topmost side of the placement box;
s4, stopping the operation of the testing equipment until the flash memory to be tested in the raw material area is completely tested or the material tray in the material discharging area is full.
9. The test method according to claim 8, wherein in S3, when the trays in the single set tray in the stock area are empty, the control section automatically defines the set tray as the set tray area or the empty tray area according to the setting.
10. The test method according to claim 8, wherein in the step S3, the control unit records the number of flash memories of the tray on each of the set cassettes in real time according to the grabbing coordinates and the number of grabbing times of the grabbing unit during the grabbing of the flash memories.
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