Chip test seat capable of preventing pressing head from carrying materials
By setting a separator and a baffle on the chip test socket, the problem of the chip being pulled away during testing is solved, achieving stable operation of the equipment and efficient testing.
Patent Information
- Application Number
- CN202423279869.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During testing, the chip can easily be pulled away from the test socket by the pressure head, leading to material mixing and affecting the operating efficiency of the equipment.
A separation plate is installed above the base of the chip test socket. The separation plate has holes and a stop bar to prevent the chip from moving upward and to prevent the chip from being taken out of the test chamber.
This effectively prevents the chip from being carried away during testing, ensuring the normal operation of the equipment and improving testing efficiency.
Smart Images
Figure CN223857348U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a chip test seat capable of preventing chips from being carried by a pressure head. BACKGROUND
[0002] The chip test seat is a device for testing the functions and performance of ICs. In the semiconductor testing industry, most testing machines with high testing capacity are used to simultaneously test 20-100 chips at a time in order to improve testing efficiency and cost. The mechanical arm of the device repeatedly sucks and places chips to fill all the test seats in the test cavity. The device testing pressure head is pressed down to make the PAD surface of the chip under test contact the test needle to start testing. After the test is completed, the device lifts the test pressure head to separate the chip from the test probe. The device mechanical arm sucks the chip in the test seat and places the product in the corresponding position according to the test result to complete the entire testing process. This process is of great significance for screening defective chips and improving product yield. It not only ensures the quality of chips but also promotes the improvement of production efficiency and the development of product innovation.
[0003] However, due to the small size and light weight of chips or the residual glue on the surface of some chips, when the pressure head is lifted after testing, some chips may be carried upward away from the test seat, causing chip mixing and triggering an alarm of the device, which suspends the testing progress and reduces the efficiency.
[0004] Therefore, it is necessary to invent a chip test seat capable of preventing chips from being carried by a pressure head to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] (I) Utility model purpose
[0006] To solve the technical problems in the background art, the utility model provides a chip test seat capable of preventing chips from being carried by a pressure head. A separation piece is arranged above the base to block the chips inside the test cavity by the blocking rod. When the pressure head of the testing machine moves upward and away from the chip, the chip will not automatically leave the base due to the limiting of the blocking rod during the testing process, which avoids the problem of chip mixing and enables the device to operate normally with high testing efficiency.
[0007] (II) Technical scheme
[0008] To achieve the above purpose, the utility model provides the following technical scheme: a chip test seat capable of preventing chips from being carried by a pressure head, comprising a base, wherein a plurality of test cavities are formed in the top of the base, a support table is arranged inside the test cavity, a frame plate protrudes upward in the middle of the support table to accommodate the chip;
[0009] A probe is installed inside the base, the top of the probe penetrates through the support table and extends into the frame plate to contact the bottom of the chip for testing the pressure of the chip.
[0010] A separation sheet is arranged in the interior of the base, and a plurality of holes corresponding to the test cavities are arranged on the top of the separation sheet, and two stop rods are arranged in the interior of the holes for preventing the chip from moving upward.
[0011] Preferably, the holes are rectangular, and the long side direction of the holes is consistent with the long side direction of the base, and the two stop rods in the interior of each hole are arranged along the long side direction of the hole and are arranged above the left and right ends of the chip.
[0012] Preferably, a cover plate is arranged on the top of the separation sheet, and a clamping groove is arranged on the bottom of the cover plate, and the cover plate is clamped with the separation sheet through the clamping groove.
[0013] Preferably, a plurality of test holes corresponding to the test cavities are arranged on the top of the cover plate.
[0014] Preferably, the front and rear ends of the separation sheet are bent downward to form connecting plates.
[0015] Preferably, air cylinders are arranged at the front and rear ends of the base, and the output ends of the two air cylinders are connected with the connecting plates at the two ends.
[0016] Compared with the prior art, the beneficial effects of the above technical scheme of the utility model are:
[0017] The utility model discloses a separation sheet is arranged above the base, and the stop rod prevents the chip in the test cavity, when the pressure head of the testing machine moves upward and leaves the chip, because of the limiting of the stop rod, the chip can not move upward, that is, the chip will not be taken away from the test cavity, avoids the chip in the testing process, and the problem that will automatically leave the base along with the upward movement of the pressure head is formed, and the equipment can normally run, and the testing efficiency is high. ACCURACY OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiment or the prior art, the drawings needed in the embodiment will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.
[0019] Figure 1 It is the whole structure schematic diagram of the utility model;
[0020] Figure 2 It is the connecting structure schematic diagram of the probe and the base of the utility model;
[0021] Figure 3 It is the connecting structure schematic diagram of the support table and the chip of the utility model;
[0022] Figure 4 It is the structure diagram of the separation sheet of the utility model;
[0023] Figure 5 It is the demonstration diagram of the separation sheet after moving of the utility model;
[0024] Figure 6 It is the distribution diagram of the utility model file and the chip.
[0025] Mark explanation:
[0026] 1 base, 2 test cavity, 3 support table, 4 frame plate, 5 probe, 6 separation sheet, 7 hole, 8 stop rod, 9 cover plate, 10 clamping groove, 11 test hole, 12 connecting plate, 13 air cylinder, 14 chip. Specific implementation
[0027] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below with the drawings.
[0028] The utility model provides a kind of chip test seat for preventing pressure head with material as shown in Figures 1-6 The bottom of the utility model is provided with a plurality of test cavities 2, and the inside of the test cavity 2 is provided with a support table 3, and the middle part of the support table 3 is upwardly protruding with a frame plate 4 for accommodating the chip.
[0029] Probe 5 is installed in the inside of the base 1, and the top of the probe 5 penetrates the support table 3 and extends to the inside of the frame plate 4 and contacts the bottom of the chip, for testing the pressure of the chip.
[0030] The top of the separation sheet 6 is provided with a plurality of holes 7 corresponding to the test cavities 2 one by one, and two stop rods 8 are installed in the inside of the hole 7 for preventing the chip from moving upward.
[0031] In one embodiment, the hole 7 is set as a rectangle, and the long side direction of the hole 7 is consistent with the long side direction of the base 1, and the two stop rods 8 in the inside of each hole 7 are set along the long side direction of the hole 7, and the stop rods 8 are parallel to the upper part of the left and right ends of the chip, to ensure that the stop rods 8 can limit the chip while not hindering the pressure head of the testing machine to press the chip downward.
[0032] In one embodiment, the top of the separation sheet 6 is provided with a cover plate 9, the bottom of the cover plate 9 is provided with a clamping groove 10, the cover plate 9 is clamped with the separation sheet 6 through the clamping groove 10, and the top of the cover plate 9 is provided with a plurality of test holes 11 corresponding to the test cavities 2 one by one, and the cover plate 9 can cover the separation sheet 6, so that the stability of the separation sheet 6 is higher when the testing machine is working, and the separation sheet 6 will not be offset, to ensure the quality of chip testing.
[0033] In one embodiment, the separating piece 6 is bent downward at both ends to form a connecting plate 12, and the base 1 is provided with a pneumatic cylinder 13 at both ends, and the output ends of the two pneumatic cylinders 13 are connected to the connecting plates 12 at both ends, so that the separating piece 6 can be separated from the top of the base 1 at any time, facilitating the suction of the tested chip and the placement of the untested chip.
[0034] The utility model discloses in use, such as Figures 2-3 , 6 shows, wherein the reference sign 14 is a chip, specifically, the staff installs the base 1 on the external testing machine, after installation, the output end of pneumatic cylinder 13 extends, makes the connecting plate 12 move to right, to drive the separating piece 6 to move to right, exposes the testing cavity 2 from the top of base 1, then, the mechanical arm on the testing machine sucks the chip 14 needing testing in the inside of testing cavity 2, starts pneumatic cylinder 13 again, makes its output end recycle to left, further drives the connecting plate 12 to move to left, to make the separating piece 6 reset to left;
[0035] At this time, the testing machine's pressure head moves down, after passing through the test hole 11, the hole 7 and the gap between the two stop rods 8 in each hole 7, the chip 14 in the testing cavity 2 is pressed, and the probe 5 in the base 1 records the pressure received by the chip 14, then the pressure head moves up, at this time, due to the limitation of the stop rod 8, the chip 14 cannot be taken up by the pressure head, and cannot be taken out of the testing cavity 2, then the pneumatic cylinder 13 is started again to push the separating piece 6 away from the top of the base 1, so that the testing cavity 2 is exposed again, and the mechanical arm of the testing machine takes out the chip 14 directly, and the test of the chip 14 is completed.
[0036] This embodiment specifically solves the problem in the prior art that due to the small size and light weight of the chip 14, or the residual glue on the surface of some chips 14, when the pressure head is lifted after testing, the chip 14 is taken up and taken out of the testing seat, resulting in mixed chips 14, triggering the alarm of the equipment, pausing the testing progress, and low efficiency.
[0037] The above only describes some exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the utility model.
Claims
1. A chip test socket for preventing a pressure head with a tape, characterized by: Include: Base (1), the base (1) top is provided with a plurality of test cavities (2), the test cavity (2) is provided with a support table (3) inside, the support table (3) middle part is protruded with frame plate (4) upward, for accommodating chip; Probe (5), installed in the base (1) inside, and the probe (5) top penetrates the support table (3), and extends to the frame plate (4) inside and the bottom of chip contact, for testing the pressure of chip; Separation sheet (6), installed in the base (1) inside, the separation sheet (6) top is provided with a plurality of holes (7) corresponding to the test cavity (2), the hole (7) is provided with two stop lever (8) inside, for preventing chip up.
2. The chip test socket for preventing the material from being carried by the pressure head according to claim 1, wherein: The hole (7) is set to rectangle, and the hole (7) long side direction is consistent with the base (1) long side direction, the two stop lever (8) inside each hole (7) is set along the long side direction of hole (7), and the stop lever (8) is parallel to the top of chip left and right two ends.
3. The chip test socket for preventing the material from being carried by the pressure head according to claim 1, wherein: The separation sheet (6) top is provided with cover plate (9), the cover plate (9) bottom is provided with clamping groove (10), the cover plate (9) is clamped with separation sheet (6) through clamping groove (10).
4. The chip test socket for preventing the material from being carried by the pressure head according to claim 3, wherein: The cover plate (9) top is provided with a plurality of test holes (11) corresponding to the test cavity (2).
5. The chip test socket for preventing the material from being carried by the pressure head according to claim 1, wherein: The separation sheet (6) front and rear two ends are bent downward to form a connecting plate (12).
6. The chip test socket for preventing the material from being carried by the pressure head according to claim 5, wherein: The base (1) front and rear two ends are provided with pneumatic cylinder (13), two the pneumatic cylinder (13) output end is connected with two ends connecting plate (12) respectively.