Automatic power supply and sorting detection system and method for aged BURN IN board

Abstract

In the system, a power supply platform is used for bearing the aged BURN-IN board, and a power supply control module responds to a power supply instruction to supply power to the aged BURN-IN board and is automatically powered off after a preset power supply duration; the signal acquisition module is connected with the aged BURN IN board machine, and the signal acquisition module acquires high and low level analog signals of each test station through a golden finger channel of the aged BURN IN board and transmits the signals back to the upper computer; the upper computer is connected with the code scanning identification module, the power supply control module and the signal acquisition module, verifies the consistency of the aged BURN IN board and the product flow card information according to the number, sends a power supply instruction to the power supply control module and receives the high-low level analog signal; and the upper computer judges the placement state of the IC according to the high-low level analog signal and generates a screening result.

Description

Technical Field

[0001] This invention relates to the field of chip fault detection technology, and in particular to an automatic power supply and sorting detection system and method for aging BURN IN boards. Background Technology

[0002] Currently, in the extended testing industry, before the ICs are processed in a high-temperature aging furnace, existing technologies involve manually powering the aging furnace board at room temperature and then visually inspecting the LED flashing frequency at each test station to identify defective ICs. This process involves manually connecting the power supply, visually observing the LED flashing frequency at each test station to identify defective ICs, and then manually disconnecting the power to manually adjust or remove the defective ICs. Existing technologies have the following drawbacks: the entire process of manually powering on and off the aging furnace board, and manually visually inspecting the LED flashing frequency at each test station to identify defective ICs, is entirely manual and carries the risk of missed or incorrect identifications.

[0003] The information disclosed in the background section is only intended to enhance the understanding of the background of the present invention, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] To address the shortcomings or defects of the existing technology, an automatic power supply and sorting detection system and method for aged BURN IN boards is provided. This system automatically cuts off power before the screening results are available, preventing damage to ICs caused by manual handling of ICs while the BURN IN boards are powered on, thus reducing quality issues arising from human operation. It achieves automatic screening of defective ICs placed on aged BURN IN boards, reducing manual operation processes and improving efficiency.

[0005] The objective of this invention is achieved through the following technical solutions.

[0006] An automatic power supply and sorting detection system for aging burn-in boards includes,

[0007] A power supply platform for supporting the aged BURN IN board, the power supply platform including a power supply port that matches the power supply terminal of the aged BURN IN board;

[0008] The barcode scanning module scans the serial number on the aged BURN IN board;

[0009] The power supply control module responds to power supply commands to supply power to the aging BURN IN board and automatically cuts off power after a preset power supply duration;

[0010] An electromagnetic lock that extends to lock the aging BURN IN board during power supply and automatically retracts after power is cut off;

[0011] The signal acquisition module is connected to the aging BURN IN board. The signal acquisition module acquires the high and low level analog signals of each test station through the gold finger channel of the aging BURN IN board and transmits the signals back to the host computer.

[0012] The host computer is connected to the barcode scanning and identification module, the power supply control module, and the signal acquisition module. The host computer verifies the consistency between the aging BURN IN board and the product flow card information based on the number, sends power supply commands to the power supply control module, and receives the high and low level analog signals. The host computer determines the IC placement status based on the high and low level analog signals and generates screening results.

[0013] In the aforementioned automatic power supply and sorting detection system for aging BURN IN boards, the preset power supply duration is 5 seconds, and signal acquisition is performed after a 1-second delay following power failure.

[0014] In the aforementioned automatic power supply and sorting detection system for aging BURN IN boards, the host computer is connected to a remote server to automatically upload the screening results to the remote server for data backup and traceability.

[0015] In the aforementioned automatic power supply and sorting detection system for aging BURN IN boards, if the number scanned by the barcode identification module does not match the product flow card information, the host computer is prohibited from sending power supply commands.

[0016] In the aforementioned automatic power supply and sorting detection system for aging BURN IN boards, the host computer includes a central processing unit.

[0017] The methods for an automated power supply and sorting detection system for aging burn-in boards include:

[0018] Push the aged BURN IN board into the power supply platform, and connect the power supply terminal of the aged BURN IN board to the power supply port.

[0019] Scan the aging BURN IN board number and verify its consistency with the product flow card using the host computer.

[0020] After the verification is passed, the host computer sends a power supply command, the power supply control module turns on the power, and the electromagnetic lock extends to lock the aging BURN IN board.

[0021] The power supply automatically cuts off after 5 seconds, and the electromagnetic lock retracts.

[0022] One second after the power outage, the signal acquisition module acquires high and low level analog signals from each workstation through the gold finger channel;

[0023] The host computer generates the filtering results, displays them on the interface, and uploads them to the server.

[0024] Adjust the defective ICs based on the screening results, and repeat the test until there are no defective workstations;

[0025] Remove the aged BURN IN plate to complete the screening.

[0026] In the method described, the screening results are displayed in a graphical interface, and defective workstations are highlighted with red boxes.

[0027] In the method described, during the power supply process, an attempt is made to remove the aged BURN IN board. Due to the electromagnetic lock, hot-swapping is not possible, thereby avoiding damage to the IC or circuit.

[0028] In the method described, if the verification fails, the host computer is prohibited from sending power supply commands.

[0029] In the method described, the aged BURN IN board is automatically connected to the power supply platform via a robotic arm.

[0030] Compared with existing technologies, the beneficial effects of this invention are as follows: By scanning a code to obtain the serial number of the aging BURN IN board, the consistency between the current aging BURN IN board and the power supply port is controlled, avoiding quality problems caused by human error in using the wrong aging BURN IN board. Power is supplied to the aging BURN IN board via commands sent from the host computer, with the entire power supply process controlled to prevent quality problems caused by human error in handling ICs during the aging BURN IN board's power-on process. The host computer communicates through the gold finger channel of the aging BURN IN board, detecting the high and low level analog signals of each test station on the aging BURN IN board to determine if there is improper IC placement, generating intuitive reports locally and uploading the data to the server for backup. A hot-swapping prevention function is added to prevent faulty insertion and removal of the aging BURN IN board during power supply, thus avoiding quality problems caused by human error in handling the aging BURN IN board during power supply.

[0031] The description provided is merely an overview of the technical solution of this invention. In order to make the technical means of this invention clearer and more understandable, so that those skilled in the art can implement it according to the contents of the specification, and to make the described and other objects, features and advantages of this invention more obvious and understandable, specific embodiments of this invention are described below. Attached Figure Description

[0032] Various other advantages and benefits of the present invention will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0033] In the attached diagram:

[0034] Figure 1 This is a schematic diagram of the system structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the power supply of the present invention;

[0036] Figure 3 This is a schematic diagram of the screening results of the present invention;

[0037] Figure 4 This is a schematic diagram of data backup according to the present invention.

[0038] The present invention will be further explained below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0039] Specific embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While specific embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0040] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments for carrying out the invention; however, these descriptions are for the purpose of understanding the general principles of the specification and are not intended to limit the scope of the invention. The scope of protection of this invention is determined by the appended claims.

[0041] To facilitate understanding of the embodiments of the present invention, the following will provide further explanation and description with reference to the accompanying drawings and several specific embodiments, and the accompanying drawings do not constitute a limitation on the embodiments of the present invention.

[0042] To better understand, such as Figures 1 to 4 As shown, an automatic power supply and sorting detection system for aging BURN IN boards includes,

[0043] A power supply platform for supporting the aged BURN IN board, the power supply platform including a power supply port that matches the power supply terminal of the aged BURN IN board;

[0044] The barcode scanning module scans the serial number on the aged BURN IN board;

[0045] The power supply control module responds to power supply commands to supply power to the aging BURN IN board and automatically cuts off power after a preset power supply duration;

[0046] An electromagnetic lock that extends to lock the aging BURN IN board during power supply and automatically retracts after power is cut off;

[0047] The signal acquisition module is connected to the aging BURN IN board. The signal acquisition module acquires the high and low level analog signals of each test station through the gold finger channel of the aging BURN IN board and transmits the signals back to the host computer.

[0048] The host computer is connected to the barcode scanning and identification module, the power supply control module, and the signal acquisition module. The host computer verifies the consistency between the aging BURN IN board and the product flow card information based on the number, sends power supply commands to the power supply control module, and receives the high and low level analog signals. The host computer determines the IC placement status based on the high and low level analog signals and generates screening results.

[0049] In a preferred embodiment of the automatic power supply and sorting detection system for the aging BURN IN board, the preset power supply duration is 5 seconds, and signal acquisition is performed after a 1-second delay following power failure.

[0050] In a preferred embodiment of the automatic power supply and sorting detection system for the aging BURN IN board, the host computer is connected to a remote server to automatically upload the screening results to the remote server for data backup and traceability.

[0051] In a preferred embodiment of the automatic power supply and sorting detection system for the aging BURN IN board, if the number scanned by the barcode identification module does not match the product flow card information, the host computer is prohibited from sending power supply commands.

[0052] In a preferred embodiment of the automatic power supply and sorting detection system for the aging BURN IN board, the host computer includes a central processing unit.

[0053] The methods for an automated power supply and sorting detection system for aging burn-in boards include:

[0054] Push the aged BURN IN board into the power supply platform, and connect the power supply terminal of the aged BURN IN board to the power supply port.

[0055] Scan the aging BURN IN board number and verify its consistency with the product flow card using the host computer.

[0056] After the verification is passed, the host computer sends a power supply command, the power supply control module turns on the power, and the electromagnetic lock extends to lock the aging BURN IN board.

[0057] The power supply automatically cuts off after 5 seconds, and the electromagnetic lock retracts.

[0058] One second after the power outage, the signal acquisition module acquires high and low level analog signals from each workstation through the gold finger channel;

[0059] The host computer generates the filtering results, displays them on the interface, and uploads them to the server.

[0060] Adjust the defective ICs based on the screening results, and repeat the test until there are no defective workstations;

[0061] Remove the aged BURN IN plate to complete the screening.

[0062] In a preferred embodiment of the method, the screening results are displayed in a graphical interface, and defective workstations are highlighted with red boxes.

[0063] In a preferred embodiment of the method, during power supply, an attempt is made to remove the aged BURN IN board, which is prevented from being hot-swapped due to the electromagnetic lock, thereby avoiding damage to the IC or circuit.

[0064] In a preferred embodiment of the method, if the verification fails, the host computer is prohibited from sending power supply commands.

[0065] In a preferred embodiment of the method, the aged BURN IN board is automatically connected to the power supply platform via a robotic arm.

[0066] In one embodiment, the method includes,

[0067] Open the host computer, select the host computer communication port, and automatically retrieve relevant product information by entering the current product process card number.

[0068] Place an aged BURN IN board on the power supply platform and manually push the aged BURN IN board in so that the power supply terminal of the aged BURN IN board is plugged into the power supply port.

[0069] The software automatically identifies the number on the aging BURN IN board by scanning the number with a barcode scanner and clicking the power command with the mouse. The host computer automatically connects the power supply to the aging BURN IN board, and at the same time, the electromagnetic lock extends to fix the aging BURN IN board. After 5 seconds of power supply, the power is automatically cut off and the electromagnetic lock retracts to release the aging BURN IN board. One second after the power supply ends, the software interface automatically pops up the filtering results.

[0070] The screening results were compared with the aged BURN IN board one by one for confirmation. The red boxes in the table indicate that there are faulty ICs placed there. The ICs need to be manually adjusted or removed.

[0071] Repeatedly send power supply commands to the host computer for automatic screening until no faulty ICs are found.

[0072] After manually removing and transferring the aged BURN IN board, the screening operation for defective ICs placed on the current aged BURN IN board is completed.

[0073] After all aged BURN IN boards in this batch have been screened, a command to end the current batch is sent to complete the screening.

[0074] Furthermore, this invention integrates barcode scanning and verification, automatic power supply control by the host computer, gold finger channel level detection, and an electromagnetic lock anti-mistake mechanism to construct a fully automated system for screening defective ICs on aging BURN IN boards. The system first scans the unique serial number of the aging BURN IN board using a barcode scanning module and compares it in real-time with the product process card information pre-stored in the host computer, ensuring strict matching between the board and the production batch, fundamentally eliminating quality deviations caused by human error in board usage. Subsequently, after successful verification, the host computer automatically sends a power supply command, and the power supply control module precisely executes a 5-second power supply (during which the electromagnetic lock mechanism extends synchronously to physically lock the board and prevent hot-swapping), avoiding the risk of short circuits or IC damage caused by hot-plugging ICs during manual operation. After power supply, the signal acquisition module detects the defective ICs on the aging BURN IN board. The gold finger channel of the IN board collects high and low level analog signals from each test station in real time (replacing the traditional manual visual inspection of LED flashing frequency). The system automatically generates screening results based on the level status (e.g., high level indicates normal IC, low level indicates poor placement), and presents them instantly in a graphical interface (poor stations are highlighted with red boxes), and automatically uploads them to the server for data backup. This technical solution compresses 6 redundant operation steps such as manual power supply, visual inspection, and adjustment into a 4-step automated process (scanning → power supply → testing → feedback), reducing the single-board screening time from the original 10-15 seconds to within 5 seconds, and reducing the false judgment rate from more than 15% to 0%. At the same time, through electromagnetic lock locking and power supply timing control (5 seconds of power supply + 1 second power-off delay for acquisition), the risk of IC damage caused by live operation is completely eliminated, significantly improving the BURN IN yield to over 99.5%, providing a highly reliable, efficient, and traceable automated screening solution for the extended testing industry.

[0075] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0076] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. An automatic power supply and sorting detection system for aging burn-in boards, characterized in that, It includes, A power supply platform for supporting the aged BURN IN board, the power supply platform including a power supply port that matches the power supply terminal of the aged BURN IN board; The barcode scanning module scans the serial number on the aged BURN IN board; The power supply control module responds to power supply commands to supply power to the aging BURN IN board and automatically cuts off power after a preset power supply duration; An electromagnetic lock that extends to lock the aging BURN IN board during power supply and automatically retracts after power is cut off; The signal acquisition module is connected to the aging BURN IN board. The signal acquisition module acquires the high and low level analog signals of each test station through the gold finger channel of the aging BURN IN board and transmits the signals back to the host computer. The host computer is connected to the barcode scanning and identification module, the power supply control module, and the signal acquisition module. The host computer verifies the consistency between the aging BURN IN board and the product flow card information based on the number, sends power supply commands to the power supply control module, and receives the high and low level analog signals. The host computer determines the IC placement status based on the high and low level analog signals and generates screening results.

2. The automatic power supply and sorting detection system for aging BURN IN boards as described in claim 1, characterized in that, Preferably, the preset power supply duration is 5 seconds, and signal acquisition is delayed by 1 second after power failure.

3. The automatic power supply and sorting detection system for aging BURN IN boards as described in claim 1, characterized in that, The host computer connects to a remote server to automatically upload the screening results to the remote server for data backup and traceability.

4. The automatic power supply and sorting detection system for aging BURN IN boards as described in claim 1, characterized in that, If the number scanned by the barcode scanning module does not match the information on the product flow card, the host computer is prohibited from sending power supply commands.

5. The automatic power supply and sorting detection system for aging BURN IN boards as described in claim 1, characterized in that, The host computer includes a central processing unit.

6. The method for automatic power supply and sorting detection system of aging BURN IN board as described in any one of claims 1-5, characterized in that, It includes, Push the aged BURN IN board into the power supply platform, and connect the power supply terminal of the aged BURN IN board to the power supply port. Scan the aging BURN IN board number and verify its consistency with the product flow card using the host computer. After the verification is passed, the host computer sends a power supply command, the power supply control module turns on the power, and the electromagnetic lock extends to lock the aging BURNIN board. The power supply automatically cuts off after 5 seconds, and the electromagnetic lock retracts. One second after the power outage, the signal acquisition module acquires high and low level analog signals from each workstation through the gold finger channel; The host computer generates the filtering results, displays them on the interface, and uploads them to the server. Adjust the defective ICs based on the screening results, and repeat the test until there are no defective workstations; Remove the aged BURN IN plate to complete the screening.

7. The method as described in claim 6, characterized in that, The screening results are displayed in a graphical interface, and defective workstations are highlighted with red boxes.

8. The method as described in claim 6, characterized in that, During power supply, attempts were made to remove the aged BURN IN board, but hot-swapping was not possible due to the electromagnetic lock, thus avoiding damage to the IC or circuitry.

9. The method as described in claim 6, characterized in that, The verification failed, and the host computer is prohibited from sending power supply commands.

10. The method as described in claim 6, characterized in that, The aged BURN IN board is automatically connected to the power supply platform via a robotic arm.

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