Chip aging jig
By designing a chip aging fixture with a floating pressure cap assembly and a limiting structure, the problem of chip damage caused by excessive clamping force was solved, achieving high-precision and widely applicable aging tests.
Patent Information
- Application Number
- CN202422962913.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing aging test fixtures lack floating space when clamping chips, resulting in excessive clamping force and damage to the chips.
A chip aging fixture was designed, which adopts a floating pressure plate assembly, including a floating plate, a connecting block, a pressure plate and a spring. The floating plate automatically adjusts the clamping force to avoid damaging the chip, and the height of the floating plate is fixed by a limiting component to ensure a stable clamping force.
It avoids chip damage during clamping and is applicable to chips of different thicknesses, improving the accuracy and applicability of testing. It is suitable for fully automated aging tests.
Smart Images
Figure CN223692402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of aging equipment, in particular to a chip aging fixture. BACKGROUND
[0002] With the rapid development of semiconductor technology and the increasing complexity of chips, chip testing has been throughout the entire design and production process, and is more and more challenging. Among them, the aging test is an important test for removing early failure products before the chip is delivered to the customer. Usually, the chip needs to be placed in the test seat of the aging test fixture before the chip is tested, and then the aging test fixture with the clamped chip is placed in the aging test equipment for aging test. But the existing aging test fixture does not have floating space when clamping the chip, resulting in excessive holding force when clamping the chip, which damages the chip. SUMMARY
[0003] In view of the shortcomings of the prior art, the utility model provides a chip aging fixture, the sub fixture can automatically adjust the holding force of the fixture, avoid pressing the chip, the sub fixture with the product is matched with the mother fixture to realize the aging test of the product, the test is convenient, and the sub mother fixture is suitable for the aging test of the full-automatic aging test.
[0004] The utility model discloses the purpose that realizes through the following technical scheme:
[0005] A chip aging fixture, comprising a sub fixture and a mother fixture used in cooperation, the sub fixture comprising a base and a cover body hinged to the base, the cover body comprising an upper cover body, a floatable gland assembly provided on the upper cover body, the upper cover body being provided with a through first installation slot, the floatable gland assembly comprising a floating plate, a connecting block, a pressing plate and a spring, the floating plate being floatingly connected above the upper cover body through a limiting assembly, the connecting block being floatingly connected below the floating plate and located in the first installation slot through a first floating screw, the pressing plate being fixedly connected below the connecting block and located in the first installation slot, and the spring being arranged between the floating plate and the connecting block.
[0006] Further, the floating plate and the connecting block are provided with a first floating hole matched with each other, and the first floating screw is arranged in the first floating hole.
[0007] Further, the floating limiting assembly comprises a limiting shaft sleeve, a limiting guide shaft and a second floating screw, the upper cover body is provided with a limiting hole, the limiting shaft sleeve is arranged in the limiting hole, one end of the limiting guide shaft is connected to the floating plate, and the other end of the limiting guide shaft is arranged in the limiting hole in the limiting shaft sleeve; the floating plate and the upper cover body are provided with second floating holes matched with each other, and the second floating screw is arranged in the second floating holes.
[0008] Further, the floating plate and the connecting block are provided with spring grooves matched with each other, and the two ends of the spring abut against the spring grooves.
[0009] Further, the base and the cover body are provided with product placing grooves and second mounting grooves on the inner surfaces opposite to each other, the product placing grooves are provided with product carriers, the product carriers are provided with third signal connecting devices, the product carriers are provided with chip products, and the second mounting grooves are provided with fourth signal connecting devices.
[0010] Further, the upper cover body and the base are provided with conductive plates on the inner surfaces opposite to each other, when the cover body is buckled on the base, the conductive plates are connected with the fourth signal connecting devices.
[0011] Further, the female jig comprises a shell and a bottom plate, the bottom plate and the shell are provided with first PCB plates on the inner surfaces opposite to each other, the first PCB plates are provided with first signal connecting devices, the bottom plate and the shell are provided with first insertion holes on the inner surfaces opposite to each other, the first signal connecting devices pass through the first insertion holes and are electrically connected with the third signal connecting devices and the fourth signal connecting devices.
[0012] Further, the shell is provided with second PCB plates, the second PCB plates are provided with second signal connecting devices, and the second PCB plates and the first PCB plates are electrically connected.
[0013] Further, the shell is provided with third mounting grooves on one side, and the second signal connecting devices are mounted in the third mounting grooves.
[0014] Further, the base is provided with first buckles, the upper cover body is provided with first lock lugs matched with the first buckles for locking, the upper cover body is provided with second buckles on the left and right sides relative to the first lock lugs, and the floating plate is provided with second lock lugs matched with the second buckles for locking.
[0015] The utility model discloses beneficial effects are:
[0016] The utility model discloses a floatable gland assembly, and the floatable gland assembly comprises a floating plate, a connecting block, a pressing plate and a spring. When clamping the chip, the floating plate drives the connecting block and the pressing plate to move upwards according to the height of the chip, so that the chip is prevented from being pressed and injured, and the chip with different specifications and thicknesses is suitable. At the same time, a limiting assembly is arranged on the floating plate to limit the height of the floating plate, fix the floatable gland assembly, keep stable holding force, and improve the accuracy of testing.
[0017] The utility model discloses the base of sub -gripper is set up product and places the groove, product and places the groove in can place product carrier, to different chip, only need to change product carrier can be with the chip aging test of different specifications and models of aging fixture, and the suitability is strong.
[0018] The utility model discloses the base of sub -gripper is set up product and places the groove, product and places the groove in can place product carrier, to different chip, only need to change product carrier can be with the chip aging test of different specifications and models of aging fixture, and the suitability is strong. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is whole structure schematic diagram of the utility model chip aging fixture;
[0020] Figure 2 It is opening state schematic diagram of sub -gripper in the utility model chip aging fixture;
[0021] Figure 3 It is closing state schematic diagram of sub -gripper in the utility model chip aging fixture;
[0022] Figure 4 It is structure schematic diagram of floatable gland assembly in the utility model chip aging fixture;
[0023] Figure 5 It is exploded view schematic diagram of sub -gripper in the utility model chip aging fixture;
[0024] Figure 6 It is another view closing state schematic diagram of sub -gripper in the utility model chip aging fixture;
[0025] Figure 7 It is Figure 6 It is A-A cross section structure schematic diagram;
[0026] Figure 8 It is structure schematic diagram of mother jig in the utility model chip aging fixture;
[0027] REFERENCE SIGNS:
[0028] 1 - sub -gripper;2 - mother jig;3 - chip;
[0029] 10-Base; 11-Product placement slot; 12-Second mounting slot; 13-Product carrier; 131-Third signal connection device; 14-Fourth signal connection device; 15-First latch;
[0030] 20-Cover body; 21-Upper cover body; 211-First mounting groove; 212-Limiting hole; 213-First locking tongue; 214-Second locking buckle; 215-Conductive plate; 22-Floating plate; 221-Second locking tongue; 23-Connecting block; 24-Pressure plate; 25-Spring; 26-Floating limiting assembly; 261-Limiting bushing; 262-Limiting guide shaft; 263-Second floating screw; 27-First floating screw; 28-First floating hole; 29-Second floating hole;
[0031] 30 - Housing; 31 - Second PCB board; 32 - Second signal connection device; 33 - Third mounting slot;
[0032] 40 - Base plate; 41 - First PCB board; 42 - First signal connection device. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between 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.
[0036] As Figures 1 to 8 The utility model discloses an embodiment provides a chip aging fixture, including the cooperation of sub fixture 1 and female fixture 2. Sub fixture 1 includes base 10 and the cover 20 of hinged base 10, and the cover 20 includes upper cover body 21, and the floatable gland assembly of setting in upper cover body 21. Female fixture 2 includes shell 30 and bottom plate 40, and bottom plate 40 is installed in the upper of shell 30.
[0037] As Figures 2 to 7 In the embodiment, the first installation slot 211 is arranged on the upper cover body 21, and the floatable gland assembly includes a floating plate 22, a connecting block 23, a pressing plate 24 and a spring 25. The floating plate 22 is connected to the upper side of the upper cover body 21 through a floating limiting assembly 26. The connecting block 23 is connected to the lower side of the floating plate 22 and located in the first installation slot 211 through a first floating screw 27. The pressing plate 24 is fixedly connected to the lower side of the connecting block 23 and located in the first installation slot 211. The spring 25 is arranged between the floating plate 22 and the connecting block 23. When the sub fixture 1 and the female fixture 2 are used together, the base 10 of the sub fixture 1 is arranged on the bottom plate 40 of the female fixture 2. The signal connection device of the sub fixture 1 and the signal connection device of the female fixture 2 are electrically connected to realize communication connection.
[0038] In the embodiment, the floating limiting assembly 26 includes a limiting shaft sleeve 261, a limiting guide shaft 262 and a second floating screw 263. The limiting hole 212 is arranged on the upper cover body 21, and the limiting shaft sleeve 261 is arranged in the limiting hole 212. One end of the limiting guide shaft 262 is connected to the floating plate 22, and the other end is arranged in the limiting hole 212 through the limiting shaft sleeve 261. The floating plate 22 and the upper cover body 21 are arranged with the second floating hole 29 matched with each other, and the second floating screw 263 is arranged in the second floating hole 29. During the pressing process of the pressing plate 24, the limiting shaft sleeve 261 limits the pressing height, and during the floating process of the pressing plate 24, the second floating screw 263 limits the floating height. Therefore, the pressing of the chip 3 can be avoided, and the stability of clamping the chip 3 can be ensured, and the test accuracy can be improved.
[0039] In the embodiment, the floating plate 22 and the connecting block 23 are arranged with the first floating hole 28 matched with each other, and the first floating screw 27 is arranged in the first floating hole 28. The floating plate 22 and the connecting block 23 are arranged with the spring 25 slot matched with each other, and the two ends of the spring 25 abut against the spring 25 slot. The floating plate 22 and the connecting block 23 are connected through the first floating screw 27, and the elastic element is arranged between the two, so that the pressing and floating of the pressing plate 24 have a buffer space, and the pressing of the chip 3 can be further avoided.
[0040] In the embodiment, the inner surface of the base 10 opposite to the cover 20 is provided with a product placing groove 11 and a second mounting groove 12, the product placing groove 11 is provided with a product carrier 13, the product carrier 13 is provided with a third signal connecting device 131, the product carrier 13 is placed with a chip 3, and the second mounting groove 12 is mounted with a fourth signal connecting device 14.
[0041] In the embodiment, the base 10 is provided with a first lock catch 15, the upper cover body 21 is provided with a first lock tongue 213 matched with the first lock catch 15, the upper cover body 21 is provided with a second lock catch 214 on the left and right sides opposite to the first lock tongue 213, and the floating plate 22 is provided with a second lock tongue 221 matched with the second lock catch 214.
[0042] As shown in Figure 1 and Figure 8 In the female jig 2, the inner surface of the bottom plate 40 opposite to the shell 30 is provided with a first PCB plate 41, the first PCB plate 41 is provided with a first signal connecting device 42, the inner surface of the bottom plate 40 opposite to the shell 30 is provided with a first jack, and the first signal connecting device 42 passes through the first jack and is electrically connected with the third signal connecting device 131 and the fourth signal connecting device 14.
[0043] The shell 30 is provided with a third mounting groove 34 on one side, the shell 30 is provided with a second PCB plate 31, the second PCB plate 31 is provided with a second signal connecting device 32, the second PCB plate 31 and the first PCB plate 41 are electrically connected, and the second signal connecting device 32 is matched with and mounted in the third mounting groove 34.
[0044] In use, the chip 3 is placed in the product carrier 13 of the base 10, the cover 20 is covered, the first lock catch 15 is matched with the first lock tongue 213 to lock, the cover 20 and the base 10 are fixed, the pressing plate 24 is covered above the chip 3, if the thickness of the chip 3 is too high, the pressing plate 24 is stressed to be transmitted to the spring 25, the spring 25 is stressed to be transmitted to the floating plate 22, the floating plate 22 drives the connecting block 23 and the pressing plate 24 to float upwards, the second lock catch 214 is matched with the second lock tongue 221 to lock, the floating plate 22 is fixed, and the inaccuracy of the test caused by floating in the test process is avoided.
[0045] The above merely expresses the preferred technical solutions of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.
Claims
1. A chip burn-in fixture comprising a male sub-fixture and a female sub-fixture used in conjunction, characterized in that: The sub-gripper comprises a base and a cover body hinged to the base, the cover body comprises an upper cover body, a floatable gland assembly arranged on the upper cover body, a first mounting groove is arranged on the upper cover body, the floatable gland assembly comprises a floating plate, a connecting block, a pressing plate and a spring, the floating plate is connected to the upper cover body through a floating limiting assembly, the connecting block is connected to the lower side of the floating plate through a first floating screw and located in the first mounting groove, the pressing plate is fixedly connected to the lower side of the connecting block and located in the first mounting groove, and the spring is arranged between the floating plate and the connecting block.
2. The chip burn-in fixture of claim 1, wherein: First floating holes are arranged on the floating plate and the connecting block and matched with each other, and the first floating screw is arranged in the first floating holes.
3. The chip burn-in fixture of claim 1, wherein: The floating limiting assembly comprises a limiting shaft sleeve, a limiting guide shaft and a second floating screw, a limiting hole is arranged on the upper cover body, the limiting shaft sleeve is arranged in the limiting hole, one end of the limiting guide shaft is connected to the floating plate, and the other end of the limiting guide shaft is arranged in the limiting hole through the limiting shaft sleeve; second floating holes are arranged on the floating plate and the upper cover body and matched with each other, and the second floating screw is arranged in the second floating holes.
4. The chip burn-in fixture of claim 1, wherein: Spring grooves are arranged on the floating plate and the connecting block and matched with each other, and the two ends of the spring abut against the spring grooves.
5. The chip burn-in fixture of claim 1, wherein: Product placing grooves and second mounting grooves are arranged on the inner surfaces of the base and the cover body opposite to each other, a product carrier is arranged in the product placing grooves, a third signal connecting device is arranged on the product carrier, and a chip product is placed in the product carrier; the fourth signal connecting device is arranged in the second mounting grooves.
6. The chip burn-in fixture of claim 5, wherein: A conductive plate is arranged on the inner surface of the upper cover body opposite to the base, and the conductive plate is connected to the fourth signal connecting device when the cover body is buckled on the base.
7. The chip burn-in fixture of claim 5, wherein: The female gripper comprises a shell and a bottom plate, a first PCB plate is arranged on the inner surface of the bottom plate opposite to the shell, a first signal connecting device is arranged on the first PCB plate, a first jack hole is arranged on the inner surface of the bottom plate opposite to the shell, and the first signal connecting device passes through the first jack hole and is electrically connected to the third signal connecting device and the fourth signal connecting device.
8. The chip burn-in fixture of claim 7, wherein: A second PCB plate is arranged in the shell, a second signal connecting device is arranged on the second PCB plate, and the second PCB plate is electrically connected to the first PCB plate.
9. The chip burn-in fixture of claim 8, wherein: A third mounting groove is arranged on one side of the shell, and the second signal connecting device is matched with and arranged in the third mounting groove.
10. The chip burn-in fixture of any one of claims 1 to 9, wherein: A first lock catch is arranged on the base, a first lock tongue matched with the first lock catch is arranged on the upper cover body, second lock catches are arranged on the left and right sides of the first lock tongue on the upper cover body, and a second lock tongue matched with the second lock catch is arranged on the floating plate.