CXL product testing device
The CXL product testing apparatus addresses the lack of specialized equipment for CXL memory testing by ensuring precise alignment and reliable electrical connections, enhancing testing accuracy and yield in high-speed manufacturing.
Patent Information
- Application Number
- CN202421664038.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The lack of testing equipment designed specifically for CXL memory in the prior art has made it difficult to quality control and fault diagnosis of CXL memory, especially in high-precision and high-speed production environments that cannot meet the testing needs.
A CXL product testing device is designed, including a stage, main bracket, side bracket, upper test board, right test board and carrier board. It is accurately connected with the gold finger of the CXL motherboard through a thimble, and combined with automated mechanical movement and heat dissipation design to ensure the accuracy and reliability of the test.
It improves the accuracy and reliability of CXL motherboard testing, reduces test failures caused by position deviation and poor contact, improves yield, improves test efficiency and equipment stability.
Smart Images
Figure CN223107870U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical devices, in particular to a CXL product testing device. Background Art
[0002] CXL (Compute Express Link) is a high-speed, short-distance interconnection technology designed for servers and data centers to meet the requirements of high-performance computing and large-scale memory. It uses the PCIe interface as the communication mechanism and provides a new way to directly connect the CPU and memory, aiming to solve the limitations of traditional DDR memory bandwidth and latency. Since CXL is a relatively new technology, there is a lack of test equipment (ET: Engineering Test) specifically designed for CXL memory in the market, which poses certain challenges to quality control and fault diagnosis during the manufacturing process. Currently, for the inspection of SMT (Surface Mount Technology) process problems of CXL memory, it usually relies on using a multimeter to test the electrical characteristics of the soldered CXL memory module or visually inspecting the visible defects of the solder joints. Although these methods can detect obvious problems in some cases, they may not fully meet the test requirements of CXL memory in a high-precision and high-speed production environment. To solve this problem, it is necessary to develop dedicated test equipment or upgrade existing test equipment to meet the special requirements of CXL memory. Summary of the Utility Model
[0003] An embodiment of the utility model provides a CXL product testing device, aiming to solve the problem of inaccurate positioning of the parts to be tested during the CXL motherboard testing process in the existing technical methods.
[0004] An embodiment of the utility model discloses a CXL product testing device for testing the process yield of a CXL motherboard. The device includes a carrier table, a main bracket, a side bracket, an upper test board, a right test board, and a carrier board. The main bracket is arranged on the carrier table, and the upper test board is arranged on the main bracket and extends towards the carrier board; the carrier board is arranged on the upper surface of the carrier table and is used to support the CXL motherboard to be tested; the side bracket is arranged on the side surface of the carrier table, the right test board is arranged on the side bracket and faces the carrier board, and thimble pins are arranged on the surfaces of the right test board and the upper test board facing the CXL motherboard, and the thimble pins are docked with the gold fingers arranged on the surface of the CXL motherboard; a test interface is arranged on the right test board, and one of the gold fingers on the CXL motherboard is inserted into the test interface for testing.
[0005] Further, the device further includes an upper driver and a side driver. The upper driver is drivingly connected to the upper test board through a transmission member, and the side driver is drivingly connected to the right test board through a transmission member. A downward pressing handle is provided at one end of the upper driver, and a left pushing handle is provided at one end of the side driver.
[0006] Further, a sliding track is provided on the main bracket for installing the upper driver. The upper driver moves on the sliding track to push the upper test board downward, and the sliding track is correspondingly arranged with the bearing plate.
[0007] Further, a sliding track is provided on the side bracket for installing the side driver. The side driver moves on the sliding track to push the right test board to translate leftward, and the sliding track is correspondingly arranged with the bearing plate.
[0008] Further, the device further includes a cooling fan. The cooling fan is provided on the upper test board and faces the CXL test main board to be tested.
[0009] Further, a wiring cavity is provided inside the carrier. A test connection line is provided at one end of the thimble. The test connection line is routed through the wiring cavity, and the test connection line is externally connected to a wiring port provided on the carrier.
[0010] Further, a status indicator light is also provided on the carrier. The status indicator light is used to indicate the docking status of the gold finger and the thimble.
[0011] Further, positioning points are preset on the upper surface of the bearing plate for positioning the placement of the CXL main board.
[0012] The above test device can ensure that the contact position between the test board and the main board is accurate and error-free. This precise physical connection is crucial for effective electrical connection and data transmission, thereby improving the accuracy and reliability of the test. Since the test device can ensure that each test is carried out at an accurate position, this helps to reduce test failures caused by position deviation. In addition, the high-precision docking and the reliability of the test interface reduce defective products caused by poor contact or signal interference, thereby improving the yield rate of the CXL main board. This device reduces the need for manual operation through an automated docking and testing process, improving the test efficiency. Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1Schematic diagram of the overall structure of the CXL product testing device provided by an embodiment of the present utility model;
[0015] Figure 2 Side view of the overall structure of the CXL product testing device provided by an embodiment of the present utility model;
[0016] Figure 3 Another side view of the overall structure of the CXL product testing device provided by an embodiment of the present utility model.
[0017] Reference numerals in the drawings:
[0018] 1. Main bracket; 2. Lower pressing handle; 3. Left pushing handle; 4. Right test board; 5. CXL main board; 6. Carrier board; 7. Upper test board; 8. Cooling fan; 9. Carrier stage; 10. Side bracket. Detailed implementation manners
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.
[0021] It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.
[0022] It should be further understood that the term " / and / " used in the specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0023] Such as Figures 1 to 3As shown in the figure, a CXL product testing device provided in this embodiment is used to test the process yield of the CXL motherboard 5. The device includes a stage 9, a main bracket 1, a side bracket 10, an upper test board 7, a right test board 4, and a carrier board 6. The main bracket 1 is arranged on the stage 9, and the upper test board 7 is arranged on the main bracket 1 and extends towards the carrier board 6; the carrier board 6 is arranged on the upper surface of the stage 9 and is used to support the CXL motherboard 5 to be tested; the side bracket 10 is arranged on the side surface of the stage 9, the right test board 4 is arranged on the side bracket 10 and faces the carrier board 6, and thimble needles are arranged on the surfaces of the right test board 4 and the upper test board 7 facing the CXL motherboard 5, and the thimble needles are docked with the gold fingers arranged on the surface of the CXL motherboard 5; a test interface is arranged on the right test board 4, and one of the gold fingers on the CXL motherboard 5 is inserted into the test interface for testing.
[0024] In actual usage scenarios, CXL (Compute Express Link) is a high-speed, short-distance bus technology designed to connect processors and accelerators in high-performance computing devices. It was introduced by Intel in 2018 as a new type of high-performance interconnect technology to replace the traditional PCI Express (PCIe) bus, especially in application scenarios that require extremely high bandwidth and low latency, such as artificial intelligence, high-performance computing (HPC), and data centers. CXL provides a unidirectional bandwidth of up to 128GB / s, which is four times that of PCIe 4.0 (unidirectional bandwidth of 32GB / s). This makes CXL very suitable for applications that require large amounts of data transmission, such as high-performance computing and data centers. The latency of CXL is much lower than that of PCIe, which is very important for applications that require quick responses, such as artificial intelligence and high-frequency trading. CXL uses a point-to-point connection method, where each device is directly connected to the processor or the main controller, avoiding the switches and complex topologies in PCIe and simplifying the system architecture. CXL operates at a lower voltage (such as 1V), which can reduce the thermal design power consumption compared to PCIe (usually 1.2V or higher), helping to improve the energy efficiency of the system. CXL is designed to support multiple protocols. In addition to its own CXL protocol, it can also support the PCIe protocol. This means that existing PCIe devices can operate on the CXL bus, and at the same time, CXL devices can also operate on the PCIe bus. A CXL motherboard 5 usually contains components such as a processor, memory, and accelerator that support CXL technology, as well as corresponding interfaces and connectors. They are usually used in scenarios such as high-performance computing and data centers to meet the requirements for high-speed data transmission and low latency in these scenarios. As CXL technology continues to develop, it may be widely used in more application scenarios in the future and become the mainstream technology in the field of high-performance computing and data centers. Place the CXL motherboard 5 to be tested on the carrier board 6, ensuring that the motherboard is placed stably and aligned with the positioning points on the carrier board 6 to ensure the accuracy of the test. The upper test board 7 and the right test board 4 are docked with the gold fingers on the motherboard through spring pins to ensure the electrical connection between the test board and the motherboard. This step is usually automatically completed by the device to improve the docking accuracy and efficiency. The test interfaces on the right test board 4 are plugged into the gold fingers on the motherboard to form an electrical connection for the test device to perform subsequent signal transmission and data acquisition. Send test signals through the test interfaces on the upper test board 7 and the right test board 4, collect the data responded by the motherboard, and analyze whether the functions of the motherboard are normal and whether there are defects in the manufacturing process. After the test is completed, the test device will analyze the test results to determine whether the motherboard meets the specified good product standards. The test results can be sent to an external computer system for further analysis through the status indicator lights on the device or through the data interface.If multiple motherboards need to be tested, the device will repeat the above steps and cyclically use the upper test board 7 and the right test board 4 for testing to improve the test efficiency. During the test process, if the ejector pin is damaged or the test interface fails, the device needs to be maintained or calibrated to ensure the accuracy and reliability of the test device. The entire test process is designed to quickly and accurately evaluate the process yield of the CXL motherboard 5, and promptly discover and correct problems that may occur in the manufacturing process to improve product quality. With this test device, manufacturers can ensure that each motherboard meets high quality standards before the product reaches the hands of consumers.
[0025] In summary, the design and functional optimization of the CXL product test device are aimed at improving the positioning accuracy and overall yield of the test process. By setting ejector pins on the upper test board 7 and the right test board 4, and accurately docking with the gold fingers on the surface of the CXL mainboard 5, the device can ensure that the contact position between the test board and the mainboard is accurate. This precise physical connection is essential for effective electrical connection and data transmission, thereby improving the accuracy and reliability of the test. Since the test device can ensure that each test is performed at a precise position, it helps to reduce test failures due to position deviation. In addition, the reliability of the high-precision docking and test interface reduces defective products caused by poor contact or signal interference, thereby improving the yield of the CXL mainboard 5. The device reduces the need for manual operation and improves test efficiency by automating the docking and testing process. Fast and accurate testing helps to shorten the time from manufacturing to market for products, while reducing dependence on human resources. The design of the device takes into account long-term stability and reliability, ensuring high performance in continuous operation and high-frequency testing. This helps to reduce equipment downtime, maintain high yield, and ultimately reduce overall operating costs. The design of this device is easy to maintain and calibrate. If necessary, the ejector pins and test interfaces can be quickly replaced to maintain the best performance of the test device. The easy-to-maintain design helps to extend the life of the equipment and ensure long-term stable test results. This CXL product test device improves the positioning accuracy of the test process, which not only improves the accuracy and reliability of the test, but also improves the overall yield, providing manufacturers with an efficient, stable and reliable test solution.
[0026] Furthermore, the device also includes an upper transmission device and a side transmission device. The upper transmission device is connected to the upper test plate 7 through a transmission member, and the side transmission device is connected to the right test plate 4 through a transmission member. A downward push handle 2 is set at one end of the upper transmission device, and a left push handle 3 is set at one end of the side transmission device.
[0027] Furthermore, a sliding track is provided on the main support 1 for installing an upper actuator, and the upper actuator moves on the sliding track to push the upper test plate 7 downward, and the sliding track is provided corresponding to the bearing plate 6 .
[0028] Specifically, this device is equipped with an upper driver and a side driver, which are respectively used to drive the mechanical movements of the upper test board 7 and the right test board 4. The upper driver and the side driver are connected to the test board through transmission parts, and this design allows the test board to move precisely in the vertical and horizontal directions. A downward pressing handle 2 is provided at one end of the upper driver, and a left pushing handle 3 is provided at one end of the side driver. These handles provide an intuitive operation interface, enabling the operator to easily perform precise control of the test board. The downward pressing handle 2 is used to push the upper test board 7 downward to apply pressure, ensuring stable contact between the thimble and the gold fingers on the surface of the CXL main board 5; the left pushing handle 3 is used to push the right test board 4 to translate leftward to facilitate docking with the gold fingers of the main board. The sliding track provided on the main bracket 1 is used to install the upper driver. The upper driver can move longitudinally on the sliding track to push the upper test board 7 downward to apply pressure. The design of this sliding track ensures the smoothness and precision of the movement of the test board in the vertical direction, and also corresponds to the positioning on the carrier board 6, ensuring the accuracy of the test. Through the coordinated use of these mechanical moving parts, this device not only improves the positioning precision during the test, but also enhances the operation convenience and the automation level of the device. These features work together to further improve the efficiency and yield of the CXL main board 5 test, ensuring the stability and reliability of the test process.
[0029] Furthermore, a sliding track is provided on the side bracket 10 for installing the side driver, and the side driver moves on the sliding track to push the right test board 4 to translate leftward, and the sliding track is correspondingly arranged with the carrier board 6.
[0030] Furthermore, the device also includes a cooling fan 8, and the cooling fan 8 is arranged on the upper test board 7, and the cooling fan 8 faces the CXL test main board to be tested.
[0031] Furthermore, a wiring cavity is arranged inside the carrier 9, a test connection line is arranged at one end of the thimble, the test connection line is routed through the wiring cavity, and the test connection line is externally connected to the wiring port arranged on the carrier 9.
[0032] Furthermore, a status indicator light is also arranged on the carrier 9, and the status indicator light is used to indicate the docking status of the gold fingers and the thimble.
[0033] Furthermore, positioning points are preset on the upper surface of the carrier board 6 for positioning and placing the CXL main board 5.
[0034] Specifically, the sliding track provided on the side bracket 10 is used to install the side driver. The side driver can move horizontally on the sliding track to push the right test board 4 to translate leftward for docking with the gold fingers of the main board. This design ensures the smoothness and accuracy of the movement of the test board in the horizontal direction, and also corresponds to the positioning on the carrier plate 6 to ensure the accuracy of the test. The device also includes a cooling fan 8 provided on the upper test board 7 for cooling the CXL main board 5 to be tested. The cooling fan 8 faces the main board, which helps prevent the main board from overheating during the test and ensures the stability of the test and the safety of the main board. The inside of the carrier 9 is provided with a wiring cavity for arranging the test connection lines at one end of the thimble. The test connection lines are routed through the wiring cavity, ensuring the neatness and orderliness of the internal wiring, while reducing the interference of the cables on the test process. The test connection lines are externally connected to the wiring ports provided on the carrier 9, facilitating connection to external test equipment. Status indicator lights are also provided on the carrier 9 to indicate the docking status of the gold fingers and the thimbles. This provides intuitive feedback, enabling the operator to immediately know whether the docking is successful and whether the test equipment is ready for testing. Positioning points are preset on the upper surface of the carrier plate 6 for positioning and placement of the CXL main board 5. These positioning points help ensure that the main board can be accurately aligned during placement, further improving the accuracy and reliability of the test. Through these additional designs and functions, the CXL product test device improves the positioning accuracy and operation convenience of the test process, while ensuring the stability and reliability of the test. These features work together to further improve the efficiency and yield of the CXL main board 5 test and ensure the smooth progress of the test process.
[0035] The utility model discloses a CXL product testing device for testing the process yield of a CXL main board 5. The device includes a stage 9, a main bracket 1, a side bracket 10, an upper test board 7, a right test board 4 and a carrier board 6. The main bracket 1 is arranged on the stage 9, and the upper test board 7 is arranged on the main bracket 1 and extends towards the carrier board 6; the carrier board 6 is arranged on the upper surface of the stage 9 for supporting the CXL main board 5 to be tested; the side bracket 10 is arranged on the side surface of the stage 9, and the right test board 4 is arranged on the side bracket 10 and faces the carrier board 6. Thumb pins are arranged on the surfaces of the right test board 4 and the upper test board 7 facing the CXL main board 5, and the thumb pins are docked with the gold fingers arranged on the surface of the CXL main board 5; a test interface is arranged on the right test board 4, and one of the gold fingers on the CXL main board 5 is inserted into the test interface for testing. The CXL product testing device disclosed by the utility model realizes the enhanced testing of the process yield of the CXL main board 5 through its unique design and functions. By arranging thumb pins on the surfaces of the upper test board 7 and the right test board 4, these thumb pins can be accurately docked with the gold fingers on the CXL main board 5, ensuring the stability of the test connection and the integrity of signal transmission, thereby improving the test accuracy. The arrangement of the upper test board 7 and the right test board 4 allows multiple parts of the main board to be tested simultaneously, improving the parallel processing ability of the test, shortening the test time of a single main board, and thus enhancing the overall test efficiency. Through accurate positioning and docking, the test failures caused by poor contact or position deviation are reduced, and the yield rate of the CXL main board 5 is improved. The design of the device takes into account the convenience of operation. By setting a pressing handle 2 and a left pushing handle 3, the operator can easily and accurately control the test board, simplifying the operation process. The structural design of the main bracket 1 and the side bracket 10, as well as the use of sliding tracks, ensure the stability and reliability of the test device during operation, reducing the test errors caused by mechanical vibration or unstable movement. A cooling fan 8 is arranged on the upper test board 7, which helps to effectively cool the main board during the test, prevent performance degradation or damage caused by high temperature, and ensure the stability of the test and the safety of the main board. Through the design of the wire routing cavity, the layout of the test connection wires is optimized, ensuring the neatness and order of the internal wiring and reducing the interference of the wires on the test process. The setting of the status indicator provides an intuitive feedback on the docking status of the gold finger and the thumb pin, enabling the operator to immediately know whether the docking is successful and whether the test equipment is ready for testing.
[0036] In summary, the CXL product testing device significantly improves the testing effect of the process yield of the CXL main board 5 through its innovative design and functions, providing an efficient, stable and reliable testing solution for manufacturers.
[0037] The above are only the specific implementation manners of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims
1. A CXL product testing device for testing the process yield of a CXL motherboard, characterized in that, It includes a carrier, a main bracket, a side bracket, an upper test plate, a right test plate and a load-bearing plate; The main support is arranged on the carrier, and the upper test plate is arranged on the main support and extends toward the carrier; The carrier plate is disposed on the upper surface of the carrier, and is used to support the CXL motherboard to be tested; The side bracket is arranged on the side surface of the carrier, the right test board is arranged on the side bracket and faces the carrier board, and ejector pins are arranged on the surfaces of the right test board and the upper test board facing the CXL mainboard, and the ejector pins are connected with the gold fingers arranged on the surface of the CXL mainboard; A test interface is provided on the right test board, and one of the gold fingers on the CXL mainboard is plugged into the test interface for testing.
2. The CXL product testing device according to claim 1, characterized in that The device also includes an upper transmission device and a side transmission device. The upper transmission device is connected to the upper test plate through a transmission member, and the side transmission device is connected to the right test plate through a transmission member. A downward push handle is set at one end of the upper transmission device, and a left push handle is set at one end of the side transmission device.
3. The CXL product testing device according to claim 2, characterized in that, The main support is provided with a sliding track for installing the upper transmission device, and the upper transmission device moves on the sliding track to push the upper test plate downward, and the sliding track is provided corresponding to the bearing plate.
4. The CXL product testing device according to claim 2, characterized in that, The side bracket is provided with a sliding track for installing the side actuator, and the side actuator moves on the sliding track to push the right test plate to translate to the left, and the sliding track is provided corresponding to the bearing plate.
5. The CXL product testing device according to claim 1, wherein The device further comprises a cooling fan, which is arranged on the upper test board and faces the CXL test mainboard to be tested.
6. The CXL product testing device according to claim 1, wherein, A wiring cavity is arranged inside the carrier, a test connection line is arranged at one end of the ejector pin, the test connection line is arranged for wiring through the wiring cavity, and the test connection line is externally connected to a wiring port arranged on the carrier.
7. The CXL product testing device according to claim 1, characterized in that, The carrier is also provided with a status indicator light, which is used to indicate the docking status of the gold finger and the ejector pin.
8. The CXL product testing device according to claim 1, characterized in that, The upper surface of the carrier plate is provided with preset positioning points for locating the CXL mainboard.