SPI Flash chip tester

Abstract

The utility model belongs to the field of testing, particularly relates to an SPI Flash chip tester, and aims to solve the problems that although the thickness of a chip can be detected through an ultrasonic generator and an ultrasonic thickness measuring probe during use in the prior art, additional equipment is needed for measurement when the length and the width of the chip need to be measured, and inconvenience is caused. According to the technical scheme, the ultrasonic thickness measuring device comprises a machine body, a chip body, an ultrasonic generator and an ultrasonic thickness measuring probe used for measuring the thickness of the chip body, a fixing plate is fixedly arranged on one side of the machine body, and the length and the width of the chip body can be measured through a measuring mechanism; the ultrasonic generator and the ultrasonic thickness measuring probe can be moved left and right and back and forth through the first moving mechanism and the second moving mechanism, the ultrasonic thickness measuring probe can be conveniently moved to the to-be-measured position of the chip body, the machine body can be prevented from shaking through the stabilizing mechanism, and stability is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to an SPI Flash chip tester. Background Art

[0002] The SPI Flash chip is a memory chip based on the SPI bus communication protocol. During the production process of the SPI Flash chip, a tester is required to measure the thickness of the SPI Flash chip.

[0003] After searching, the patent with announcement number CN213984983U discloses a thickness tester for chip production, including: a tester body, a placement slot is opened on one side of the tester body; a test structure, the test structure is located at the bottom of the placement slot, the test structure includes an ultrasonic generator, an ultrasonic thickness probe and a pressure plate, and the tester body is located at the top of the placement slot and is slidably provided with an ultrasonic generator. The utility model can move the fixing plate by rotating the adjustment bolt, thereby fixing both sides of the chip to prevent the chip from moving during the thickness measurement process and affecting the accuracy of the thickness measurement. When the tester is not used for a long time, the two magnet blocks can be magnetically attracted by pulling the fixing block, so that the dustproof cloth can cover the surface of the tester body to prevent dust from falling. When it is needed, the dustproof cloth can be rolled up by rotating the rotating shaft by the hand crank, which is convenient to use.

[0004] The technical solution has the following problems:

[0005] Although the thickness of the chip can be detected by an ultrasonic generator and an ultrasonic thickness measuring probe during use, when the length and width of the chip need to be measured, additional equipment is required for measurement, which is inconvenient. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that although the thickness of the chip can be detected by an ultrasonic generator and an ultrasonic thickness measuring probe, when the length and width of the chip need to be measured, additional equipment is needed for measurement, which is inconvenient, and an SPI Flash chip tester is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An SPI Flash chip tester comprises a body, a chip body, an ultrasonic generator and an ultrasonic thickness measuring probe for measuring the thickness of the chip body, a fixing plate is fixedly arranged on one side of the body, a display screen for displaying thickness data is fixedly arranged on one side of the fixing plate, a door body is hingedly connected to one side of the body through a hinge, the ultrasonic generator is located in the body, and the top of the ultrasonic thickness measuring probe is fixedly connected to the bottom of the ultrasonic generator;

[0009] A measuring mechanism, which is disposed in the body and is used to measure the length and width of the chip body;

[0010] A first moving mechanism, the first moving mechanism is arranged in the body and is used to move the ultrasonic generator and the ultrasonic thickness measuring probe left and right;

[0011] A second moving mechanism, the second moving mechanism is arranged in the body and is used to move the ultrasonic generator and the ultrasonic thickness measuring probe back and forth;

[0012] The stabilizing mechanism is arranged at the bottom of the machine body to prevent the machine body from shaking and improve stability.

[0013] In a possible design, the measuring mechanism includes a scale and a stop plate for measuring the length and width of the chip body, the bottom of the stop plate is fixedly connected to the bottom inner wall of the body, one side of the scale is fixedly connected to one side of the stop plate, the stop plate is L-shaped, and the chip body is placed on one side of the stop plate.

[0014] In a possible design, the first moving mechanism includes a first cover body, a first motor, a first screw rod and a moving block, the top of the first cover body is fixedly connected to the top inner wall of the body, one side of the first motor is fixedly connected to the one side inner wall of the first cover body, one end of the first screw rod is fixedly connected to the output end of the first motor, the other end of the first screw rod is rotatably connected to the one side inner wall of the first cover body, the top of the moving block is slidably connected to the top inner wall of the first cover body, and a first screw rod nut is embedded in one side of the moving block, and the first screw rod nut is threadedly connected to the first screw rod.

[0015] In a possible design, the second moving mechanism includes a second cover body, a second motor, a second screw and a moving plate, the top of the second cover body is fixedly connected to the bottom of the moving block, one side of the second motor is fixedly connected to the inner wall of one side of the second cover body, one end of the second screw is fixedly connected to the output end of the second motor, the other end of the second screw is rotatably connected to the inner wall of one side of the second cover body, the top of the moving plate is slidably connected to the top inner wall of the second cover body, a second screw nut is embedded in one side of the moving plate, the second screw nut is threadedly connected to the second screw, an electric push rod for lifting and lowering the ultrasonic generator and the ultrasonic thickness measuring probe is fixedly provided at the bottom of the moving plate, the telescopic part of the electric push rod is fixedly provided with a square plate, and the top of the ultrasonic generator is fixedly connected to the bottom of the square plate.

[0016] In a possible design, the stabilizing mechanism includes four threaded columns and four adjustment cylinders. The tops of the four threaded columns are fixedly connected to the four corners of the bottom of the body, and the threaded columns are provided with external threads. The adjustment cylinder is concave, and the inner wall of the adjustment cylinder is provided with internal threads. The four adjustment cylinders are threadedly connected to the four threaded columns, respectively.

[0017] In a possible design, a rubber pad for increasing the friction between the adjusting cylinder and the ground to prevent slipping is fixedly provided on the inner wall of the bottom of the adjusting cylinder.

[0018] In a possible design, a magnet for magnetically fixing the door body is fixedly provided on one side of the door body, and an iron sheet is fixedly provided on one side of the machine body.

[0019] In the present application, when in use, first place the entire device in the position where it needs to be used. If one corner of the machine body is found to be shaking, rotate the adjusting cylinder. The adjusting cylinder is rotated on the threaded column through the thread to move the adjusting cylinder up and down, so that the bottom of the adjusting cylinder is in contact with the ground, thereby preventing the machine body from shaking and providing stability. Then open the door body, place the chip body on the bottom inner wall of the machine body, and in contact with one side of the baffle plate to ensure that the chip can be placed flat. Through the set scale, the scale can measure the length and width of the chip body (after the chip body length measurement is completed, pick up the chip body and place it on one side of the baffle plate in another direction, and then measure the other side of the chip body). The personnel can take the notebook to record the length and width of the chip body. When it is necessary to move the ultrasonic generator and the ultrasonic thickness measuring probe left and right, start the first motor. The rotation of the output end of the first motor drives the rotation of the first screw rod, and the rotation of the first screw rod drives the movement of the moving block, thereby driving the second cover body, the moving plate, and the electric The electric push rod, the square plate, the ultrasonic generator and the ultrasonic thickness measuring probe are moved so that the ultrasonic generator and the ultrasonic thickness measuring probe can be moved left and right, so that the ultrasonic thickness measuring probe can be moved to the position of the chip body to be measured, and the second motor is started. The rotation of the output end of the second motor drives the rotation of the second screw rod, and the rotation of the second screw rod drives the movement of the moving plate. The movement of the moving plate drives the electric push rod, the square plate, the ultrasonic generator and the ultrasonic thickness measuring probe to move back and forth, so that the ultrasonic thickness measuring probe can be moved to the position of the chip body to be measured. After moving to the area to be measured, the electric push rod is started. The extension and retraction of the telescopic part of the electric push rod drives the movement of the ultrasonic generator and the ultrasonic thickness measuring probe, so that the ultrasonic thickness measuring probe contacts the chip body, and the thickness of the chip body is measured by the ultrasonic thickness measuring probe. The thickness value of the chip can be displayed on the display screen, wherein the door body can be closed during the thickness measurement process or when the test is not needed, and the material of the door body can be selected from transparent glass or other materials, wherein the first motor and the second motor can be selected from stepping motors.

[0020] The beneficial effects of the present invention are:

[0021] In the utility model, the SPI Flash chip tester can measure the length and width of the chip body through the measuring mechanism and the provided scale;

[0022] In the utility model, the SPI Flash chip tester, through the first moving mechanism, the rotation of the first motor output end drives the rotation of the first screw rod, the rotation of the first screw rod drives the movement of the moving block, and then drives the movement of the second cover body, the moving plate, the electric push rod, the square plate, the ultrasonic generator and the ultrasonic thickness measuring probe, so that the ultrasonic generator and the ultrasonic thickness measuring probe can be moved left and right, which is convenient for the ultrasonic thickness measuring probe to move to the chip body to be tested.

[0023] In the utility model, the SPI Flash chip tester, through the second moving mechanism, the rotation of the second motor output end drives the rotation of the second screw rod, the rotation of the second screw rod drives the movement of the moving plate, the movement of the moving plate drives the electric push rod, the square plate, the ultrasonic generator and the ultrasonic thickness measuring probe to move forward and backward, so that the ultrasonic thickness measuring probe is moved to the chip body to be tested.

[0024] In the utility model, the SPI Flash chip tester rotates the adjustment cylinder through a stabilizing mechanism, and the adjustment cylinder rotates on the threaded column through a thread, so that the adjustment cylinder moves up and down, and the bottom of the adjustment cylinder is in contact with the ground, thereby preventing the body from shaking and providing stability.

[0025] In the utility model, the length and width of the chip body can be measured by the measuring mechanism, and the ultrasonic generator and the ultrasonic thickness measuring probe can be moved left and right and front and back by the first moving mechanism and the second moving mechanism, so that the ultrasonic thickness measuring probe can be moved to the position of the chip body to be measured. The stabilizing mechanism can prevent the body from shaking and provide stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the main structure of a SPI Flash chip tester proposed by the utility model;

[0027] Figure 2 This is a side view structural diagram of a SPI Flash chip tester proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of a SPI Flash chip tester proposed by the utility model;

[0029] Figure 4 This is a partial structural diagram of a SPI Flash chip tester proposed by the utility model;

[0030] Figure 5 Schematic diagram of the separation structure of the threaded column and the adjustment cylinder of the SPI Flash chip tester proposed by the utility model

[0031] In the figure: 1. body; 2. door body; 3. display screen; 4. fixing plate; 5. adjusting cylinder; 6. first cover body; 7. second cover body; 8. electric push rod; 9. square plate; 10. ultrasonic generator; 11. baffle plate; 12. scale; 13. chip body; 14. first motor; 15. first screw rod; 16. moving block; 17. second motor; 18. moving plate; 19. threaded column; 20. rubber pad. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Embodiment 1

[0034] Reference Figure 1-5 A tester includes: a body 1, a door body 2, a fixing plate 4, a display screen 3, an ultrasonic generator 10, an ultrasonic thickness measuring probe and other components. The door body 2 is hinged on one side of the body 1 through a hinge, which is convenient for opening and closing to place or take out the chip body 13. The fixing plate 4 is arranged on one side of the body 1 for fixing the display screen 3, and the display screen 3 is used to display the measured thickness data.

[0035] The measuring mechanism consists of a scale 12 and a baffle plate 11. The bottom of the baffle plate 11 is fixedly connected to the bottom inner wall of the body 1 and is L-shaped. The chip body 13 is placed on one side of the baffle plate 11. The length and width of the chip body 13 are measured by the scale 12.

[0036] The first moving mechanism includes a first cover body 6 , a first motor 14 , a first screw rod 15 and a moving block 16 . The first motor 14 drives the moving block 16 to move left and right in a horizontal direction through the first screw rod 15 .

[0037] A second moving mechanism is provided on the moving block 16, including a second cover body 7, a second motor 17, a second screw and a moving plate 18. The second motor 17 drives the moving plate 18 to move forward and backward in the vertical direction through the second screw. The bottom of the moving plate 18 is connected to the square plate 9 through the electric push rod 8. The ultrasonic generator 10 and the ultrasonic thickness measuring probe are fixed on the bottom of the square plate 9, thereby realizing accurate positioning and measurement of the chip body 13.

[0038] The stabilizing mechanism includes four threaded columns 19 and four adjusting cylinders 5. The tops of the threaded columns 19 are fixedly connected to the four corners of the bottom of the body 1 respectively. The adjusting cylinders 5 are threadedly connected to the threaded columns 19. By rotating the adjusting cylinders 5, the body 1 can be prevented from shaking. A rubber pad 20 is provided on the inner wall of the bottom of the adjusting cylinder 5 to increase the friction between the adjusting cylinder 5 and the ground, thereby improving the stability of the tester.

[0039] This application is used in the field of SPI Flash chip testing, and can also be used in other fields applicable to this application.

[0040] Embodiment 2

[0041] refer to Figure 1-5, based on the improvement of the first embodiment: a SPI Flash chip tester, which is used in the field of SPI Flash chip testing,

[0042] A magnet is fixedly provided on one side of the door body 2, and an iron sheet is fixedly provided on one side of the machine body 1. When the door body 2 is closed, the magnet and the iron sheet are attracted to each other, so that the door body 2 is fixed by magnetic attraction.

[0043] The working principles of the display screen 3, ultrasonic generator 10, and ultrasonic thickness measuring probe are the same as those of authorization number CN213984983U, and will not be repeated here. The display screen 3, ultrasonic generator 10, and ultrasonic thickness measuring probe are all existing technologies and can be purchased according to needs.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 14, the second motor 17, and the electric push rod 8 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An SPI Flash chip tester, comprising a body (1), an ultrasonic generator (10) and an ultrasonic thickness measuring probe for measuring the thickness of a chip body (13), a fixing plate (4) being fixedly arranged on one side of the body (1), and a display screen (3) for displaying thickness data being fixedly arranged on one side of the fixing plate (4), characterized in that: A door body (2) is hingedly connected to one side of the machine body (1) via a hinge, the ultrasonic generator (10) is located inside the machine body (1), and the top of the ultrasonic thickness measuring probe is fixedly connected to the bottom of the ultrasonic generator (10); A measuring mechanism, the measuring mechanism being arranged in the machine body (1) and used for measuring the length and width of the chip body (13); A first moving mechanism, the first moving mechanism being arranged in the machine body (1) and used for moving the ultrasonic generator (10) and the ultrasonic thickness measuring probe left and right; A second moving mechanism, the second moving mechanism being arranged in the machine body (1) and used for moving the ultrasonic generator (10) and the ultrasonic thickness measuring probe forward and backward; A stabilizing mechanism is arranged at the bottom of the machine body (1) and is used to prevent the machine body (1) from shaking and improve stability.

2. A SPI Flash chip tester according to claim 1, characterized in that, The measuring mechanism comprises a scale (12) and a stop plate (11) for measuring the length and width of a chip body (13); the bottom of the stop plate (11) is fixedly connected to the bottom inner wall of the body (1); one side of the scale (12) is fixedly connected to one side of the stop plate (11); the stop plate (11) is L-shaped; and the chip body (13) is placed on one side of the stop plate (11).

3. A SPI Flash chip tester according to claim 1, characterized in that, The first moving mechanism comprises a first cover body (6), a first motor (14), a first screw rod (15) and a moving block (16); the top of the first cover body (6) is fixedly connected to the top inner wall of the machine body (1); one side of the first motor (14) is fixedly connected to the inner wall of one side of the first cover body (6); one end of the first screw rod (15) is fixedly connected to the output end of the first motor (14); the other end of the first screw rod (15) is rotatably connected to the inner wall of one side of the first cover body (6); the top of the moving block (16) is slidably connected to the top inner wall of the first cover body (6); a first screw rod nut is embedded in one side of the moving block (16); and the first screw rod nut is threadedly connected to the first screw rod (15).

4. A SPI Flash chip tester according to claim 3, characterized in that: The second moving mechanism comprises a second cover body (7), a second motor (17), a second screw and a moving plate (18); the top of the second cover body (7) is fixedly connected to the bottom of the moving block (16); one side of the second motor (17) is fixedly connected to the inner wall of one side of the second cover body (7); one end of the second screw is fixedly connected to the output end of the second motor (17); the other end of the second screw is rotatably connected to the inner wall of one side of the second cover body (7); the top of the moving plate (18) is slidably connected to the inner wall of the top of the second cover body (7); a second screw nut is embedded in one side of the moving plate (18); the second screw nut is threadedly connected to the second screw; an electric push rod (8) for lifting and lowering the ultrasonic generator (10) and the ultrasonic thickness measuring probe is fixedly arranged at the bottom of the moving plate (18); a square plate (9) is fixedly arranged on the telescopic portion of the electric push rod (8); the top of the ultrasonic generator (10) is fixedly connected to the bottom of the square plate (9).

5. A SPI Flash chip tester according to claim 1, characterized in that: The stabilizing mechanism comprises four threaded columns (19) and four adjusting cylinders (5); the tops of the four threaded columns (19) are respectively fixedly connected to the four corners of the bottom of the machine body (1); the threaded columns (19) are provided with external threads; the adjusting cylinder (5) is concave; the inner wall of the adjusting cylinder (5) is provided with internal threads; and the four adjusting cylinders (5) are respectively threadedly connected to the four threaded columns (19).

6. A SPI Flash chip tester according to claim 5, characterized in that: A rubber pad (20) is fixedly provided on the inner wall of the bottom of the adjusting cylinder (5) for increasing the friction between the adjusting cylinder (5) and the ground to prevent slipping.

7. A SPI Flash chip tester according to claim 1, characterized in that: A magnet for magnetically fixing the door body (2) is fixedly provided on one side of the door body (2), and an iron sheet is fixedly provided on one side of the machine body (1).

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