Electrical performance comprehensive analysis system for high-precision packaging test

Abstract

The invention provides an electrical performance comprehensive analysis system for high-precision packaging test. The electrical performance comprehensive analysis system for the high-precision packaging test comprises a test module which is used for generating and controlling current and voltage signals to test a packaging element, the test module comprises a high-precision current source, a voltage source, a precision measuring instrument and a high-precision sensor, and a differential amplifier and a low-noise circuit design are adopted; the device has the micro current and voltage measurement capability, improves the test precision, automatically calibrates the power supply module, has the functions of real-time monitoring and automatic calibration, and reduces errors caused by power supply fluctuation. According to the electrical performance comprehensive analysis system for the high-precision packaging test, a high-precision sensor designed by a differential amplifier and a low-noise circuit is adopted, so that the measurement error of weak current and voltage can be effectively reduced. The environment control module can accurately adjust the temperature, humidity and pressure of the test environment, and ensures the measurement precision under the conditions of high temperature and high pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical performance analysis for packaging and testing, and in particular to a high-precision comprehensive analysis system for electrical performance for packaging and testing. Background Art

[0002] The system primarily consists of four core modules: a test module, a data acquisition and processing unit, an analysis algorithm module, and a user interface. The test module is used to accurately measure the electrical properties of packaged components and includes a high-precision current and voltage source and measuring instruments. The data acquisition and processing unit is responsible for acquiring electrical performance data from sensors and performing preliminary data processing, such as noise removal and filtering. The analysis algorithm module applies advanced algorithms to conduct in-depth data analysis, evaluating the electrical performance of components under different operating conditions and ultimately generating a detailed electrical performance report. The user interface provides an operational interface, displays test results, and supports data visualization and user interaction.

[0003] While the system offers high accuracy in testing and data analysis, it still has some limitations. Due to the precision limitations of the test equipment and sensors, errors can occur even with very small current or voltage changes, affecting measurement accuracy. The system also cannot provide a comprehensive evaluation of the electrical performance of packaged components under high temperature or high voltage conditions. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a high-precision comprehensive analysis system for electrical performance of packaging tests, which solves the problem that the accuracy limitations of test equipment and sensors will cause errors under extremely small current or voltage changes, affecting the accuracy of measurements; and the system cannot provide comprehensive electrical performance evaluation of packaging components under high temperature or high voltage conditions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-precision packaging test electrical performance comprehensive analysis system, comprising:

[0006] A test module, used to generate and control current and voltage signals to test packaged components, the test module including a high-precision current source, a voltage source, and precision measuring instruments;

[0007] Data acquisition and processing unit, used to collect and process the electrical performance data obtained from the test module and sensors, using noise removal and correction processing algorithms;

[0008] The algorithm analysis module uses a preset electrical performance analysis model and data analysis algorithm to conduct a comprehensive analysis of the processed electrical performance data;

[0009] Environmental control module, used to accurately control the working environment temperature, humidity, pressure and other environmental conditions of the packaged components during the test process, ensuring the test accuracy under extreme conditions such as high temperature and high pressure;

[0010] Display and output module, used to visualize test results and generate analysis reports, supporting export and sharing of multiple data formats;

[0011] Automatically calibrate the power module.

[0012] Preferably, the high-precision sensor adopts a differential amplifier and low-noise circuit design, has the ability to measure small currents and voltages, and improves test accuracy. The automatic calibration power supply module has real-time monitoring and automatic calibration functions, reducing errors caused by power supply fluctuations.

[0013] Preferably, the data acquisition and processing unit adopts an adaptive filtering algorithm to remove noise from the original data through real-time signal processing, and uses a Kalman filtering algorithm to enhance the accuracy and stability during the dynamic test process.

[0014] Preferably, the algorithm analysis module operates based on the following electrical performance analysis model:

[0015] Circuit model, through the simulation calculation of the current, voltage and power of the package components, to conduct correlation analysis;

[0016] Machine learning models, combined with historical data training models, use predictive algorithms to improve the accuracy of electrical performance predictions, especially for new packaged components or special operating conditions;

[0017] Nonlinear optimization algorithms are used to accurately fit experimental data to improve analytical accuracy under extreme conditions.

[0018] Preferably, the environmental control module can stably control the test environment within the temperature range of -40°C to 150°C and the pressure range of 0 to 200 Pa through a heat exchanger, a cooling system and a heating unit, ensuring that the impact of environmental changes on the test results is minimized. The current source and voltage source of the test module both adopt high-stability adjustment units, which can accurately control the current and voltage signal outputs, ensure the high quality of the electrical signals, and support rapid response requirements.

[0019] Preferably, the data acquisition and processing unit can achieve data acquisition of more than 1000 times per second and support synchronous data acquisition of multiple sensor channels.

[0020] Preferably, the algorithm analysis module integrates information on temperature, pressure and electrical performance data through data fusion technology, performs comprehensive analysis, and improves the system's adaptability to complex working conditions. The system uses a wireless data communication module to support remote monitoring and data transmission, and users can obtain real-time test data and analysis results through remote operation.

[0021] Preferably, the algorithm analysis module uses an adaptive learning algorithm to update the test model in real time and optimize the electrical performance prediction based on new data input to improve adaptability to new packaging components. The environmental control module includes a heat exchanger, a cooling system and a heating unit, which can adjust the test temperature range of the packaging components to -40°C to 150°C and automatically adjust internal control parameters according to changes in the external environment.

[0022] The present invention provides a high-precision comprehensive analysis system for electrical performance of packaging tests. It has the following beneficial effects:

[0023] This high-precision comprehensive electrical performance analysis system for packaging testing uses high-precision sensors designed with differential amplifiers and low-noise circuits to effectively reduce measurement errors for weak currents and voltages. The environmental control module precisely adjusts the temperature, humidity, and pressure of the test environment to ensure measurement accuracy under high-temperature and high-pressure conditions. The system utilizes adaptive learning, nonlinear optimization, and data fusion technologies, combined with efficient filtering algorithms, to significantly improve the accuracy of electrical performance analysis under extreme conditions. It supports multi-source data integration and remote monitoring, providing users with real-time data feedback and remote control capabilities, enhancing the system's operability and flexibility. The system also features intelligent fault diagnosis capabilities that automatically adjust the system's operating status when an anomaly occurs, ensuring the stability of the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1 As shown, an embodiment of the present invention provides a high-precision comprehensive analysis system for electrical performance of packaging test, including a test module for generating and controlling current and voltage signals to test packaged components. The test module includes a high-precision current source, a voltage source and a precision measuring instrument, a high-precision sensor, a differential amplifier and a low-noise circuit design, and has the ability to measure tiny current and voltage, thereby improving test accuracy, and automatically calibrating the power supply module. It has real-time monitoring and automatic calibration functions to reduce errors caused by power supply fluctuations.

[0028] The data acquisition and processing unit is used to collect and process the electrical performance data obtained from the test module and sensors, and adopts noise removal and correction processing algorithms. The data acquisition and processing unit adopts an adaptive filtering algorithm to remove noise from the original data through real-time signal processing, and uses the Kalman filtering algorithm to enhance the accuracy and stability during dynamic testing. The data acquisition and processing unit can achieve data acquisition of more than 1,000 times per second and support synchronous data acquisition of multiple sensor channels.

[0029] The algorithm analysis module uses a preset electrical performance analysis model and a data analysis algorithm to comprehensively analyze the processed electrical performance data. The algorithm analysis module works based on the following electrical performance analysis models:

[0030] The circuit model performs correlation analysis by simulating the current, voltage, and power of packaged components.

[0031] Machine learning models, combined with historical data training models, use predictive algorithms to improve the accuracy of electrical performance predictions, especially for new packaged components or special operating conditions.

[0032] Nonlinear optimization algorithm is used to accurately fit experimental data to improve analysis accuracy under extreme conditions. The algorithm analysis module integrates information on temperature, pressure and electrical performance data through data fusion technology, conducts comprehensive analysis, and improves the system's adaptability to complex working conditions. The system uses a wireless data communication module to support remote monitoring and data transmission. Users can obtain real-time test data and analysis results through remote operation. The algorithm analysis module uses an adaptive learning algorithm to update the test model in real time and optimize electrical performance prediction based on new data input to improve adaptability to new packaging components. The environmental control module includes a heat exchanger, a cooling system, and a heating unit. It can adjust the test temperature range of the packaging components to -40°C to 150°C and automatically adjust internal control parameters according to changes in the external environment.

[0033] The environmental control module is used to accurately control the working environment temperature, humidity, pressure and other environmental conditions of the packaged components during the test process to ensure the test accuracy under extreme conditions such as high temperature and high pressure. The environmental control module can stably control the test environment within the temperature range of -40°C to 150°C and the pressure range of 0 to 200Pa through the heat exchanger, cooling system and heating unit, ensuring that the impact of environmental changes on the test results is minimal. The current source and voltage source of the test module both use high-stability adjustment units, which can accurately control the current and voltage signal output, ensure the high quality of the electrical signal, and support rapid response needs.

[0034] The display and output module is used to visualize test results and generate analysis reports, supporting export and sharing of data in multiple formats. It uses an LCD touch screen to display real-time data and provides export and sharing capabilities in multiple data formats. It supports the generation of test results in the form of visual charts and curves, allowing users to comprehensively analyze test data. Users can view trends in electrical performance data graphically. The system also supports the generation of detailed analysis reports and supports data export and sharing via USB, cloud platforms, and other methods, facilitating data archiving and further analysis.

[0035] Automatically calibrate the power module.

[0036] Example 2

[0037] Experimental Example:

[0038] In order to verify the performance of the high-precision packaging test electrical performance comprehensive analysis system of the present invention, this embodiment designed and conducted a series of experimental tests. The specific experimental steps and results are as follows:

[0039] Purpose of the experiment:

[0040] Verify the system's accuracy and stability in high-precision current and voltage measurements and extreme environments.

[0041] Experimental equipment:

[0042] High-precision packaging test electrical performance comprehensive analysis system of the present invention

[0043] Tested packaged components: high-performance power semiconductor packaged components (such as IGBT modules)

[0044] High-precision current and voltage sources

[0045] Precision measuring instruments: oscilloscopes, digital multimeters

[0046] High temperature oven and high pressure gas source to simulate high temperature and high pressure test environment

[0047] Experimental steps:

[0048] System Configuration:

[0049] Configure the high-precision current source and voltage source in the test module and ensure the stability of the output current and voltage signals by automatically calibrating the power module.

[0050] A data acquisition and processing unit is set up, and the adaptive filtering algorithm and Kalman filtering algorithm are used to process the test data in real time.

[0051] Configure the environmental control module to set the test environment to a temperature range of 40°C to 150°C and a pressure range of 0 to 200Pa to ensure the accuracy of testing in extreme environments.

[0052] Environmental simulation:

[0053] A high-temperature oven was used to set the test environment temperature at 120°C, and the pressure was adjusted to 100 Pa using a high-pressure gas source to simulate extreme working conditions.

[0054] Select packaged components (such as IGBT modules) for testing to ensure that their performance under these environmental conditions can be fully evaluated.

[0055] Testing process:

[0056] Start the test system, apply continuous current and voltage signals to the packaged components, and use the high-precision sensors in the system to perform real-time measurements.

[0057] The data acquisition and processing unit removes noise from the original data in real time and enhances the accuracy of the data through Kalman filtering.

[0058] During the test, the algorithm analysis module is used to comprehensively analyze current, voltage, power and other data, and circuit models, machine learning models and nonlinear optimization algorithms are used for data processing.

[0059] Remote monitoring and data analysis:

[0060] Use wireless data communication modules to transmit real-time data to remote devices, monitor changes in electrical performance during the test, and display test results in the form of charts and curves.

[0061] The system automatically generates test reports and outputs them in PDF format. Reports and data can be exported via USB or cloud platforms for easy archiving and subsequent analysis.

[0062] Experimental data recording and analysis:

[0063] During the experiment, the system records the current, voltage changes and power performance of the packaged components under different temperature and pressure conditions in real time, and the data output is accurate to the microampere and millivolt levels.

[0064] Experimental results show that under a simulated high temperature and high pressure environment, the system can accurately capture changes in the electrical properties of packaged components, with the error range maintained within ±2%, meeting high-precision measurement requirements.

[0065] Experimental results:

[0066] Measurement accuracy: When measuring weak currents (e.g., below 10μA) and voltages (e.g., below 1mV), the system maintains an error range of ±2%, significantly higher than existing technologies.

[0067] High-temperature and high-pressure testing: In extreme environments with a temperature of 120°C and a pressure of 100Pa, the system can operate stably and perform accurate testing. The electrical performance analysis of packaged components in this environment is not affected by environmental changes.

[0068] Remote data transmission and processing: Users can obtain real-time test data of packaged components through remote terminals and perform data analysis at any time. Report generation and export functions are stable and reliable.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. High-precision packaging test electrical performance comprehensive analysis system, characterized by: include: A test module, used to generate and control current and voltage signals to test packaged components, the test module including a high-precision current source, a voltage source, and precision measuring instruments; Data acquisition and processing unit, used to collect and process the electrical performance data obtained from the test module and sensors, using noise removal and correction processing algorithms; The algorithm analysis module uses a preset electrical performance analysis model and data analysis algorithm to conduct a comprehensive analysis of the processed electrical performance data; Environmental control module, used to accurately control the working environment temperature, humidity, pressure and other environmental conditions of the packaged components during the test process, ensuring the test accuracy under extreme conditions such as high temperature and high pressure; Display and output module, used to visualize test results and generate analysis reports, supporting export and sharing of multiple data formats; Automatically calibrate the power module.

2. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The high-precision sensor adopts a differential amplifier and low-noise circuit design, has the ability to measure small currents and voltages, and improves test accuracy. The automatic calibration power supply module has real-time monitoring and automatic calibration functions, reducing errors caused by power supply fluctuations.

3. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The data acquisition and processing unit adopts an adaptive filtering algorithm to remove noise from the original data through real-time signal processing, and uses a Kalman filtering algorithm to enhance the accuracy and stability during the dynamic test process.

4. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The algorithm analysis module works based on the following electrical performance analysis model: Circuit model, through the simulation calculation of the current, voltage and power of the package components, to conduct correlation analysis; Machine learning models, combined with historical data training models, use predictive algorithms to improve the accuracy of electrical performance predictions, especially for new packaged components or special operating conditions; Nonlinear optimization algorithms are used to accurately fit experimental data to improve analytical accuracy under extreme conditions.

5. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The environmental control module uses a heat exchanger, a cooling system, and a heating unit to stably control the test environment within a temperature range of -40°C to 150°C and a pressure range of 0 to 200 Pa, ensuring that environmental changes have minimal impact on test results. The current source and voltage source of the test module both use highly stable adjustment units, which can accurately control the output of current and voltage signals, ensure the high quality of electrical signals, and support rapid response requirements.

6. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The data acquisition and processing unit can achieve data acquisition of more than 1000 times per second and supports synchronous data acquisition of multiple sensor channels.

7. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The algorithm analysis module integrates information on temperature, pressure and electrical performance data through data fusion technology, performs comprehensive analysis, and improves the system's adaptability to complex working conditions. The system uses a wireless data communication module to support remote monitoring and data transmission, and users can obtain real-time test data and analysis results through remote operation.

8. The high-precision packaging test electrical performance comprehensive analysis system according to claim 1, characterized in that: The algorithm analysis module uses an adaptive learning algorithm to update the test model in real time and optimize the electrical performance prediction based on new data input to improve adaptability to new packaging components. The environmental control module includes a heat exchanger, a cooling system and a heating unit, which can adjust the test temperature range of the packaging components to -40°C to 150°C and automatically adjust internal control parameters according to changes in the external environment.

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