Multi-station switching mechanism for chip testing

Abstract

The utility model discloses a multi-station switching mechanism for chip testing, which comprises at least two movable station structures arranged side by side, and each movable station structure comprises a motor screw rod assembly, a chip placing assembly, a cleaning assembly and a light source assembly. The chip placing assembly, the cleaning assembly and the light source assembly are all installed on a movable part of the motor lead screw assembly, the cleaning assembly and the light source assembly are arranged on the same row, and the cleaning assembly and the light source assembly are both arranged behind the chip placing assembly. The multiple movable station structures are arranged side by side to work cooperatively, and when one movable station structure conducts feeding, the other movable station structures can conduct testing or cleaning or detection; switching of feeding, discharging and testing is carried out through multiple stations, feeding and testing can be carried out synchronously, time is greatly saved, the testing efficiency is improved, the testing station cleaning function is achieved, and the testing stability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chip testing technical field especially relates to a multi -position switching mechanism for chip test. BACKGROUND

[0002] With the wide application of chips in various industries, mainly including computer, mobile device, new energy automobile, industrial automation and the like, the growth of these industry businesses also drives the increasing demand of chips. As the core of various industries, the importance of chips is continuously improved. Therefore, after the completion of chip packaging, the specific performance and parameters of the chip need to be tested.

[0003] The chip testing device on the market currently all place a chip in a single chip placement position for testing, take out the chip after testing, and then place the next one for testing. This testing method has low testing efficiency, and testing and feeding cannot be carried out synchronously, which cannot meet the yield requirement.

[0004] Therefore, it is necessary to develop a multi -position switching mechanism for chip test to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at designing a multi -position switching mechanism for chip test to solve the above problems.

[0006] The utility model realizes the above -mentioned purpose through the following technical scheme:

[0007] The multi -position switching mechanism for chip test comprises at least two movable station structures arranged side by side, and each movable station structure comprises:

[0008] A motor screw rod assembly;

[0009] A chip placement assembly;

[0010] A cleaning assembly for cleaning the bottom of the testing position;

[0011] A light source assembly for observing the dirt and damage of the bottom of the testing position;The chip placement assembly, the cleaning assembly and the light source assembly are installed on the movable part of the motor screw rod assembly, the cleaning assembly and the light source assembly are arranged on the same row, and the cleaning assembly and the light source assembly are arranged behind the chip placement assembly.

[0012] The utility model has the beneficial effects of:

[0013] The plurality of movable work station structures are arranged side by side and work cooperatively, when one movable work station structure is loading, other movable work station structures can test or clean; the plurality of work stations are used to switch loading, unloading and testing, loading and testing can be synchronized, time is greatly saved, testing efficiency is improved, the testing stability is improved by the cleaning function of the testing station. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is a structural schematic diagram of the motor screw rod assembly in the utility model;

[0016] Figure 3 is a structural schematic diagram of the chip placing assembly in the utility model;

[0017] Figure 4 is a structural schematic diagram of the cleaning assembly in the utility model;

[0018] Figure 5 is a structural schematic diagram of the light source assembly in the utility model.

[0019] In the drawing, 1. first motor screw rod assembly;101. motor;102. screw rod;103. nut base;104. slide rail;105. sliding block;2. second motor screw rod assembly;3. first sliding plate;4. second sliding plate;5. first chip placing assembly;6. second chip placing assembly;7. first bidirectional sliding table;8. second bidirectional sliding table;9. first cleaning assembly;901. first fixed seat;902. second fixed seat;903. third fixed seat;904. first brush;905. second brush;906. suction cup;10. second cleaning assembly;11. first light source assembly;12. second light source assembly;13. bottom plate;14. angle adjusting block;15. adjusting screw;16. groove;17. angle adjusting plate;18. protruding block;19. mounting seat;20. placing box;21. negative pressure suction hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, or the orientation or positional relationship that is commonly used when the utility model product is in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figures 1-5 As shown, the multi-station switching mechanism for chip testing includes two side-by-side active station structures, each consisting of:

[0028] First motor lead screw assembly 1, second motor lead screw assembly 2;

[0029] First chip placement component 5, second chip placement component 6;

[0030] First cleaning component 9 and second cleaning component 10 for cleaning the bottom of the test position;

[0031] The first light source assembly 11 and the second light source assembly 12 are used for testing the bottom of the site, the damage observation; in each activity station structure, the chip placement assembly, the cleaning assembly, and the light source assembly are installed on the movable part of the motor 101 screw rod assembly, the cleaning assembly and the light source assembly are arranged on the same row, and the cleaning assembly and the light source assembly are arranged behind the chip placement assembly.

[0032] As shown in Figure 1 and 2 In some embodiments, the multi-station switching mechanism for chip testing further comprises a bottom plate 13, the first motor screw rod assembly 1 and the second motor screw rod assembly 2 each comprises a motor 101, a screw rod 102, a nut seat 103, a sliding rail 104, and a sliding block 105; the motor 101 and the sliding rail 104 are installed on the bottom plate 13, the sliding block 105 is in sliding fit with the sliding rail 104, the rotating shaft of the motor 101 is connected with one end of the screw rod 102, the nut seat 103 is in threaded fit with the screw rod 102, and the lower end of the nut seat 103 is connected with the sliding block 105. The motor 101 works by rotating the screw rod 102 through the rotating shaft, and the sliding block 105 and the sliding rail 104 are in sliding fit, so that the nut seat 103 moves linearly along the screw rod 102 when the screw rod 102 rotates.

[0033] As shown in Figure 1 and 2 In some embodiments, the upper end of the nut seat 103 of the first motor screw rod assembly 1 is horizontally installed with a first sliding plate 3, and the upper end of the nut seat 103 of the second motor screw rod assembly 2 is horizontally installed with a second sliding plate 4.

[0034] As shown in Figure 3 In some embodiments, the chip placement assembly comprises an angle adjusting device, a bidirectional sliding table (the first chip placement assembly 5 comprises a first bidirectional sliding table 7, and the second chip placement assembly 6 comprises a second bidirectional sliding table 8), and a placement box 20; the angle adjusting device is installed on the sliding plate, the bidirectional sliding table is installed on the actuating end of the angle adjusting device, the placement box 20 is installed on the top of the bidirectional sliding table, and the chip is placed in the mounting groove arranged on the top of the placement box 20. The bidirectional sliding table is selected from a brand NuAES and a model TSWXE-60R-LV.

[0035] As shown in Figure 3As shown in some embodiments, the angle adjusting device comprises an angle adjusting block 14, an angle adjusting plate 17 provided with a protrusion 18 on one end thereof, a recess 16 provided on one end of the angle adjusting block 14, an adjusting screw 15, a screw hole provided on the angle adjusting block 14 and communicating with the recess 16, one end of the adjusting screw 15 screwed into the screw hole and connected with the side wall of the protrusion 18 placed in the recess 16, the bottom of the angle adjusting block 14 mounted on the sliding plate, and the bottom of the two-way sliding table mounted on the angle adjusting plate 17. When working, the position of the angle adjusting block 14 is unchanged, the angle adjusting plate 17 is adjusted by rotating the screw 102, and a head facilitating rotation of the cutter can be provided on the outer end of the adjusting screw 15.

[0036] As shown in some embodiments, the chip placing assembly further comprises a mounting seat 19 mounted on the top of the two-way sliding table, and a placing box 20 mounted on the top of the mounting seat 19. Figure 3

[0037] In some embodiments, a negative pressure suction hole 21 is provided in the mounting groove, and the negative pressure suction hole 21 is connected with a negative pressure source. When the chip is placed in the mounting groove, the negative pressure suction hole 21 adsorbs the chip, thereby ensuring the position stability of the chip during testing.

[0038] As shown in some embodiments, the cleaning assembly comprises a first fixing seat 901, a second fixing seat 902, a third fixing seat 903, a first brush 904, a second brush 905, and a suction cup 906. The first fixing seat 901, the second fixing seat 902, and the third fixing seat 903 are arranged side by side in sequence. The first brush 904 is mounted on the top of the first fixing seat 901. The suction cup 906 is mounted on the top of the second fixing seat 902. The second brush 905 is mounted on the top of the third fixing seat 903. The first brush 904 and the second brush 905 are used to clean the test site, and the suction cup 906 is used to suck the dirt. Figure 4 In some embodiments, the first light source assembly 11 and the second light source assembly 12 each comprise a light source and a prism. An annular light source is mounted above the prism. The prism refracts the image of the dirt and damage at the bottom of the test site to the top for observation.

[0039] Working principle:

[0040] The first motor screw assembly 1 drives the chip on the first chip placing assembly 5 to move to the test site for testing. At the same time, the second motor screw assembly 2 drives the second chip placing assembly 6 to load the chip at the loading site. After testing and loading are completed, the testing and loading are alternately performed, so that the loading and testing are performed in parallel, thereby greatly improving the testing efficiency.

[0041]

[0042] ​​In specific work, the placement angle of the chip can be adjusted in advance through the angle adjusting device, then the positions of the chip in two mutually perpendicular directions on the horizontal plane are adjusted through the bidirectional slide table, and finally the chip is moved on the test station, the feeding station and the cleaning and detecting station as needed through the motor 101 screw rod assembly.

[0043] The above merely describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the technical principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A multi-station switching mechanism for chip testing, characterized by, The chip testing multi-station switching mechanism comprises at least two active station structures arranged side by side, each of which comprises: a motor screw rod assembly; a chip placing assembly; a cleaning assembly for cleaning the bottom of a test site; a light source assembly for observing the dirt and damage of the bottom of a test site; 2. The multi-site switching mechanism for testing chips according to claim 1, wherein, The chip placing assembly, the cleaning assembly and the light source assembly are all installed on the movable part of the motor screw rod assembly, the cleaning assembly and the light source assembly are arranged on the same row, and the cleaning assembly and the light source assembly are both arranged behind the chip placing assembly.

3. The multi-site switching mechanism for testing of chips according to claim 2, characterized in that The chip testing multi-station switching mechanism further comprises a bottom plate, and the motor screw rod assembly comprises a motor, a screw rod, a nut seat, a sliding rail and a sliding block; the motor and the sliding rail are both installed on the bottom plate, the sliding block is in sliding cooperation with the sliding rail, the rotating shaft of the motor is connected with one end of the screw rod, the nut seat is in threaded cooperation with the screw rod, and the lower end of the nut seat is connected with the sliding block.

4. The multi-site switching mechanism for testing of chips according to claim 3, wherein The upper end of the nut seat is horizontally installed with a sliding plate.

5. The multi-site switching mechanism for testing of chips according to claim 4, characterized in that The chip placing assembly comprises an angle adjusting device, a bidirectional sliding table and a placing box; the angle adjusting device is installed on the sliding plate, the bidirectional sliding table is installed on the actuating end of the angle adjusting device, and the placing box is installed on the top of the bidirectional sliding table; and a chip is placed in the mounting groove arranged on the top of the placing box.

6. The multi-site switching mechanism for testing of chips according to claim 4, wherein, The angle adjusting device comprises an angle adjusting block and an angle adjusting plate; one end of the angle adjusting plate is provided with a protrusion, one end of the angle adjusting block is provided with a groove, and an adjusting screw rod is arranged on the angle adjusting block; the angle adjusting block is provided with a screw hole in communication with the groove, one end of the adjusting screw rod is screwed into the screw hole and connected with the side wall of the protrusion arranged in the groove, the bottom of the angle adjusting block is installed on the sliding plate, and the bottom of the bidirectional sliding table is installed on the angle adjusting plate.

7. The multi-site switching mechanism for testing of chips according to claim 4, wherein The chip placing assembly further comprises a mounting seat, which is installed on the top of the bidirectional sliding table, and the placing box is installed on the top of the mounting seat.

8. The multi-site switching mechanism for testing of chips according to claim 1, wherein, The mounting groove is provided with a negative pressure suction hole connected with a negative pressure source. The cleaning assembly comprises a first fixing seat, a second fixing seat, a third fixing seat, a first brush, a second brush and a suction disc; the first fixing seat, the second fixing seat and the third fixing seat are arranged side by side in sequence; the first brush is installed on the top of the first fixing seat, the suction disc is installed on the top of the second fixing seat, and the second brush is installed on the top of the third fixing seat.

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