Chip low-temperature freezing test device

Abstract

The utility model relates to chip detection technical field discloses a kind of chip low-temperature freezing test devices, including freezer, the two sides inner surface wall of freezer are close to center place and are uniformly connected with slide rail strip, the edge of the opposite side of two the slide rail strip is close to top and bottom and is uniformly opened with sliding slot, the inside of every two the sliding slot is threadedly connected with threaded rod, and the end of threaded rod is extended to the outside of slide rail strip, the end of every two the threaded rod is fixedly connected with rotating gear, and every two the rotating gear is engagedly connected between each other, the edge of the top of two the slide rail strip is close to front side and is uniformly fixed with miniature motor, the output of two the miniature motor is uniformly fixed with rotating shaft and is welded, the utility model solves the problem that the existing equipment is generally after chip packaging is placed in freezing chamber and is directly refrigeration operation, very easily make chip produce temperature difference, make test effect worse, reduce chip test effect.

Description

Technical Field

[0001] This utility model relates to the field of chip testing technology, specifically a chip low-temperature freezing test device. Background Technology

[0002] With the rapid development of chip manufacturing technology, chips are becoming increasingly integrated and complex, making manual inspection insufficient. Automated optical inspection technology has emerged to meet this demand. It utilizes optical imaging principles, employing high-precision cameras and illumination systems to acquire images of the chip surface.

[0003] These images are transmitted to a computer system, where software algorithms analyze them. For example, after the photolithography process in chip manufacturing, AOI (Automated Optical Inspection) can be used to check the accuracy of the lithography pattern and for defects. It can quickly detect minute pattern defects on the chip surface, such as broken lines, short circuits, or missing parts of the pattern. AOI technology greatly improves inspection speed and accuracy, and ensures the consistency of inspection results.

[0004] When performing low-temperature freezing tests on chips, traditional equipment typically packages the chips and places them directly in a freezer for cooling. This can easily cause temperature differences in the chips, resulting in poorer freezing test results and reducing the effectiveness of the device's chip testing. Utility Model Content

[0005] The purpose of this invention is to provide a chip cryogenic freezing test device to solve the problem mentioned in the background art that existing devices generally package the chip and then place it in a freezer for direct cooling, which can easily cause temperature differences in the chip, resulting in poor freezing test results and reducing the chip test performance of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chip cryogenic freezing test device, comprising a freezing chamber, wherein slide rails are fixedly connected to the inner walls of both sides of the freezing chamber near the center, and sliding grooves are provided on the opposite sides of the two slide rails near the top and bottom edges, and a threaded rod is threadedly connected inside each of the two sliding grooves, with one end of the threaded rod extending to the outside of the slide rail, and a rotating gear is fixedly connected to one end of each of the two threaded rods, and the two rotating gears are meshed with each other, and a micro motor is fixedly installed at the top of the two slide rails near the front edge, and a rotating shaft is fixedly welded to the output end of each of the two micro motors, and a transmission gear is fixedly welded to one end of the rotating shaft, and the transmission gear is meshed with one of the rotating gears.

[0007] In a preferred embodiment, a sliding block is threaded onto the outer surface of each pair of threaded rods, and the sliding block is slidably connected to the sliding groove.

[0008] In a preferred embodiment, a fixing block is fixedly connected between the outer surfaces of one side of each pair of sliding blocks, and a connecting short rod is rotatably mounted on the outer surfaces of opposite sides of the two fixing blocks near the center via a bearing.

[0009] In a preferred embodiment, a fixing plate is fixedly provided between one end of the two connecting short rods, and grooves are provided on the front outer surface of the fixing plate near the edges on both sides.

[0010] In a preferred embodiment, slots are provided on the inner walls of both sides of the two grooves near the center, and a chip body is engaged and connected between the interior of each pair of slots.

[0011] In a preferred embodiment, a protective frame is fixedly provided on the rear side of the interior of the freezer, and a freezer is fixedly installed inside the protective frame.

[0012] In a preferred embodiment, a door is hinged to one edge of the front outer surface of the freezer, and an electrical control box is fixedly installed on the top of the freezer near the rear edge, and the electrical control box is electrically connected to the bearing of the freezer and the connecting rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a micro motor for startup, which in turn drives a rotating shaft to rotate a transmission gear. This transmission gear, in turn, drives a rotating gear, which in turn rotates a threaded rod. The rotation of the threaded rod causes a sliding block to slide within a sliding groove, thereby moving a fixed block. This process allows the fixed clamping plate to move easily in the forward and backward directions. When moved to the outside, the chip body can be inserted into the slot and locked in place, then exposed in the groove. This allows the chip body to be frozen within a defined space, improving the freezing effect of the device. Further, the micro motor moves the fixed clamping plate inward, closing the door. The electrical control box then activates the internal freezer, causing the connecting rod to rotate. This facilitates effective cooling control of the chip body inside, further enhancing the freezing test results of the device. Attached Figure Description

[0015] Figure 1 This invention provides a front-view three-dimensional structural diagram of a chip cryogenic freezing test device;

[0016] Figure 2 This invention provides a side-view three-dimensional structural diagram of a chip cryogenic freezing test device;

[0017] Figure 3 This invention provides a top-view three-dimensional structural diagram of a chip cryogenic freezing test device;

[0018] Figure 4 This invention proposes a chip cryogenic freezing test device. Figure 2 A schematic diagram of the three-dimensional structure at point A in the middle.

[0019] Reference numerals in the attached diagram: 1. Freezer; 2. Slide rail; 3. Sliding groove; 4. Threaded rod; 5. Rotating gear; 6. Micro motor; 7. Rotating shaft; 8. Transmission gear; 9. Sliding block; 10. Fixing block; 11. Connecting short rod; 12. Fixing clamp; 13. Groove; 14. Slot; 15. Chip body; 16. Protective frame; 17. Freezer; 18. Door; 19. Electrical control box. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a chip low-temperature freezing test device, including a freezing chamber 1. Slide rails 2 are fixedly connected to the inner walls of both sides of the freezing chamber 1 near the center. Sliding grooves 3 are formed on the opposite sides of the slide rails 2 near the top and bottom edges. A threaded rod 4 is threaded into the interior of each pair of sliding grooves 3, with one end of the threaded rod 4 extending to the outside of the slide rail 2. A rotating gear 5 is fixedly connected to one end of each pair of threaded rods 4, and the two rotating gears 5 mesh with each other. A micro motor 6 is fixedly installed at the top edge of each slide rail 2 near the front side. A rotating shaft 7 is fixedly welded to the output end of each of the two micro motors 6. A transmission gear 8 is fixedly welded to one end of the rotating shaft 7, and the transmission gear 8 meshes with one of the rotating gears 5.

[0023] Each pair of threaded rods 4 has a sliding block 9 threadedly fitted on its outer surface, and the sliding block 9 is slidably connected to the sliding groove 3.

[0024] A fixing block 10 is fixedly connected between the outer surfaces of one side of each pair of sliding blocks 9, and a connecting short rod 11 is rotatably installed on the outer surfaces of the opposite sides of the two fixing blocks 10 near the center via a bearing.

[0025] A fixing plate 12 is fixedly installed between one end of the two connecting short rods 11, and grooves 13 are provided on the outer front surface of the fixing plate 12 near the edges on both sides.

[0026] The inner walls on both sides of the two grooves 13 are provided with slots 14 near the center, and the chip body 15 is engaged and connected between the interior of each pair of slots 14.

[0027] A protective frame 16 is fixedly installed on the rear side of the interior of the freezer 1, and a freezer 17 is fixedly installed inside the protective frame 16.

[0028] A door 18 is hinged to the outer front surface of the freezer 1 near one edge. An electrical control box 19 is fixedly installed on the top of the freezer 1 near the rear edge, and the electrical control box 19 is electrically connected to the bearings of the freezer 17 and the connecting rod 11.

[0029] Working principle: When the device is in use, the micro motor 6 is first started, which causes the rotating shaft 7 to drive the transmission gear 8 to rotate. The transmission gear 8 drives the rotating gear 5 to rotate, which in turn causes the threaded rod 4 to rotate. Under the rotation of the threaded rod 4, the sliding block 9 slides inside the sliding groove 3, which in turn causes the fixed block 10 to move. During this process, the fixed clamping plate 12 can move back and forth. When it moves to the outside, the chip body 15 can be inserted into the slot 14 and locked in place, and then exposed in the groove 13. This allows the chip body 15 to be frozen in the space during freezing, improving the freezing effect of the device. The micro motor 6 is then started to move the fixed clamping plate 12 inward, closing the door 18. The electrical control box 19 is then started to cool the internal freezer 17, and the connecting rod 11 rotates, which allows the chip body 15 to be effectively controlled for cooling inside, thereby improving the freezing test effect of the device.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A chip cryogenic freezing test device, comprising a freezing chamber (1), characterized in that: The inner walls of both sides of the freezer (1) are fixedly connected with slide rails (2) near the center. Sliding grooves (3) are opened on the opposite sides of the two slide rails (2) near the top and bottom edges. A threaded rod (4) is threaded inside each of the two sliding grooves (3), and one end of the threaded rod (4) extends to the outside of the slide rail (2). A rotating gear (5) is fixedly connected to one end of each of the two threaded rods (4), and the two rotating gears (5) mesh with each other. A micro motor (6) is fixedly installed at the top of the two slide rails (2) near the front edge. A rotating shaft (7) is fixedly welded to the output end of each of the two micro motors (6). A transmission gear (8) is fixedly welded to one end of the rotating shaft (7), and the transmission gear (8) meshes with one of the rotating gears (5).

2. The chip cryogenic freezing testing device according to claim 1, characterized in that: Each of the two threaded rods (4) has a sliding block (9) threaded on its outer surface, and the sliding block (9) is slidably connected to the sliding groove (3).

3. The chip cryogenic freezing testing device according to claim 2, characterized in that: A fixing block (10) is fixedly connected between the outer surfaces of one side of each pair of sliding blocks (9), and a connecting rod (11) is rotatably installed on the outer surfaces of opposite sides of the two fixing blocks (10) near the center via a bearing.

4. The chip cryogenic freezing test device according to claim 3, characterized in that: A fixing plate (12) is fixedly provided between one end of the two connecting short rods (11), and grooves (13) are provided on the front outer surface of the fixing plate (12) near the edges on both sides.

5. The chip cryogenic freezing test device according to claim 4, characterized in that: The inner walls on both sides of the two grooves (13) are provided with slots (14) near the center, and the chip body (15) is engaged and connected between the interior of each pair of slots (14).

6. The chip cryogenic freezing testing device according to claim 1, characterized in that: A protective frame (16) is fixedly installed on the rear side of the interior of the freezer (1), and a freezer (17) is fixedly installed inside the protective frame (16).

7. The chip cryogenic freezing test device according to claim 6, characterized in that: The freezer (1) has a door (18) hinged to one side of the outer surface of the front side. An electrical control box (19) is fixedly installed on the top of the freezer (1) near the rear side. The electrical control box (19) is electrically connected to the bearing of the freezer (17) and the connecting rod (11).

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