Read-write test device and method for evaluating eMMC reliability based on electromagnetic balance conditions

Abstract

The present invention discloses a read-write test device and method for evaluating the reliability of eMMC based on electromagnetic balance conditions. The method comprises an electromagnetic balance module, a read-write module, and a signal analyzer. The method comprises connecting an eMMC chip to be tested to the read-write module of the test device. The electromagnetic balance module provides a stable electromagnetic balance condition for the eMMC chip. The read-write module performs read and write operations on the eMMC chip. The signal analyzer monitors and records the signal waveform and signal strength of the eMMC chip during the read-write operation. Based on the data recorded by the signal analyzer, the reliability of the read-write operation of the eMMC chip under electromagnetic balance conditions is evaluated. The present invention uses read-write operations under electromagnetic balance conditions to evaluate the reliability of the eMMC, more accurately simulates the operating conditions in an actual use environment, and more comprehensively evaluates the reliability of the eMMC. This method can detect problems with the read-write operation of the eMMC early, so that timely measures can be taken to repair and optimize the problems, thereby helping to improve the quality of eMMC products.

Description

Technical Field

[0001] The present invention relates to the field of semiconductor memory technology, and in particular to a read-write test device and method for evaluating the reliability of an eMMC based on electromagnetic balance conditions. Background Art

[0002] eMMC (Embedded Multi Media Card) is a standard specification for embedded memory in electronic products such as mobile phones and tablets, established by the MMC Association. It is used as non-volatile memory in mobile devices and embedded systems. eMMC integrates flash memory and a flash controller into a single package, offering a compact footprint, low power consumption, and high performance. With the rapid development and widespread adoption of electronic products, the stability and reliability of eMMC have become critical technical issues.

[0003] However, existing technologies for evaluating eMMC signal reliability have several issues and limitations. First, traditional testing methods fail to fully account for the impact of read and write operations on the eMMC under electromagnetically balanced conditions. Read and write operations under these conditions often more accurately reflect the stability and reliability of the eMMC in actual use.

[0004] Secondly, while existing signal integrity testing methods can evaluate the read and write stability of eMMCs in specific environments, they rarely assess the effects of operations under electromagnetic equilibrium conditions. This can lead to instability in actual use due to electromagnetic equilibrium conditions, thus affecting the normal operation of the device. Therefore, read and write operations under electromagnetic equilibrium conditions often more accurately reflect the reliability of eMMCs in actual use. However, there are currently no evaluation devices and equipment that can perform in such a near-realistic operating environment, making it impossible to truly improve the quality and reliability of eMMC products. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a read-write test device and method for evaluating the reliability of eMMC based on electromagnetic balance conditions, which is used to solve the problem that the existing technology fails to fully consider the impact of read and write operations on the eMMC under electromagnetic balance conditions when evaluating the reliability of eMMC signals, resulting in limitations in testing.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A read / write test device for evaluating the reliability of an eMMC under electromagnetic balance conditions, characterized by comprising:

[0008] The read / write module is connected to the eMMC chip to be tested by a bidirectional signal and is used to perform read and write operations on the eMMC chip to be tested;

[0009] The electromagnetic balance module is an electromagnetic balance circuit whose voltage and power parameters can be adjusted according to the change of the magnetic field. The electromagnetic balance circuit is respectively connected to the read / write module and the eMMC chip to be tested to provide a stable electromagnetic balance condition for the eMMC chip to be tested;

[0010] The signal analyzer is connected to the signal line of the eMMC chip to be tested and is connected to the signal of the read-write module. It monitors and records the electrical information data and signal changes of the eMMC chip to be tested in real time, and transmits instruction information data to the read-write module.

[0011] In the above technical solution, the eMMC chip to be tested realizes signal interaction and electrical connection with the host HOST in the normal working mode set by the target product during the test process.

[0012] In the above technical solution, the signal analyzer is configured to monitor and record signal waveform and signal strength.

[0013] In the above technical solution, the read-write module is an FPGA programmable chip.

[0014] A read / write test method for evaluating the reliability of an eMMC based on electromagnetic balance conditions, characterized by comprising the following steps:

[0015] S1. Connect the eMMC chip to be tested to the test device;

[0016] S2. Using the electromagnetic balance module to provide a stable electromagnetic balance condition for the eMMC chip to be tested;

[0017] S3. Perform read and write operations on the eMMC chip to be tested using the read / write module. During the read and write operations, the electromagnetic balance circuit of the circuit remains stable.

[0018] S4. Monitor and record the signal waveform and signal strength of the eMMC chip to be tested during the read and write operations using a signal analyzer;

[0019] S5. Evaluate the reliability of read and write operations of the eMMC chip under electromagnetic balance conditions based on the data recorded by the signal analyzer.

[0020] In the above technical solution, step S2 adjusts the current, voltage, and power parameters input to the eMMC chip to be tested by changing the magnetic field control parameters, suppresses harmonics, improves the power factor, and achieves electromagnetic balance; the magnetic field control parameters include at least voltage and power.

[0021] In the above technical solution, step S2 sets different electromagnetic balance conditions and electromagnetic magnitudes to achieve the test purpose under different conditions. For example, in different read and write operation modes, different or the same electromagnetic balance conditions and electromagnetic magnitudes are set to achieve the test purpose under different conditions.

[0022] In the above technical solution, the read and write operations in step S3 include but are not limited to reading data, writing data and erasing data.

[0023] In the above technical solution, step S5 evaluation includes analyzing the shape, amplitude and frequency of the signal waveform, and comparing the differences and changes in the signal waveform, amplitude, and frequency between different read and write operations.

[0024] In the above technical solution, under electromagnetic balance conditions, when the read-write module repeats the same read-write operation, if the waveform, amplitude and frequency obtained by the signal analysis recorder are the same, it indicates that the reliability of the eMMC chip is good; if the waveform, amplitude and frequency obtained by the signal analysis recorder are different, it indicates that the reliability of the eMMC chip is questionable.

[0025] In the above technical solution, under electromagnetic balance conditions, when the read-write module performs different read-write operations, if the waveform, amplitude and frequency obtained by the signal analysis recorder are similar or proportional, it indicates that the reliability of the eMMC chip is good; if the waveform, amplitude and frequency obtained by the signal analysis recorder are dissimilar or irregular, it indicates that the reliability of the eMMC chip is questionable.

[0026] A storage medium storing a computer program, characterized in that when the computer program is executed, it is used to implement the above-mentioned read-write test method for evaluating the reliability of eMMC based on electromagnetic balance conditions.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Traditional testing methods rely primarily on voltage and time measurements, which cannot fully evaluate the stability and reliability of eMMC read and write operations under electromagnetic equilibrium conditions. This invention, however, uses reading and writing under electromagnetic equilibrium conditions to evaluate eMMC signal reliability, more accurately simulating actual operating conditions and enabling a more comprehensive assessment of eMMC performance. Compared to traditional testing methods, this method is more accurate and reliable, and can better simulate actual usage conditions.

[0029] 2. Effectively improve the stability and reliability of eMMC read and write operations. The testing method and device of the present invention can early detect problems with eMMC read and write operations under electromagnetic balance conditions, allowing timely repair and optimization measures to improve the stability and reliability of eMMC read and write operations. This helps improve the quality of eMMC products. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a flow chart of the read and write test method for evaluating the reliability of eMMC based on electromagnetic balance conditions in this application.

[0032] Figure 2 This is a structural block diagram of the electromagnetic balance module of the present invention.

[0033] Figure 3 This is a specific implementation structure of the electromagnetic balance circuit of the present invention.

[0034] Figure 4 This is a structural block diagram of a read / write test device for evaluating eMMC reliability under electromagnetic balance conditions according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0040] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0043] like Figure 1-2As shown, the present invention provides a technical solution: a read-write test device for evaluating the reliability of eMMC based on electromagnetic balance conditions, including an electromagnetic balance module, a read-write module and a signal analyzer. The electromagnetic balance module is used to adjust the magnetic field to ensure that the magnetic field remains balanced during the test process and is used to create electromagnetic balance conditions. The read-write module is an FPGA for performing read and write operations, and the signal analyzer is used to monitor and record signal changes in real time.

[0044] The read / write module is connected to the eMMC chip in a bidirectional signal manner, the electromagnetic balance module is connected to the eMMC chip in a signal manner, and the eMMC chip is connected to the signal analyzer in a signal manner.

[0045] Example 1:

[0046] 1. Prepare a test setup, including an electromagnetic balance module, FPGA, and signal analyzer. The electromagnetic balance module is used to adjust the voltage, power, and other parameters input to the eMMC to ensure stability during the test.

[0047] like Figure 2 and 3 The balance circuit structure design of the electromagnetic balance module generally includes the following parts:

[0048] (1) Sensor part: responsible for real-time monitoring of changes in the electromagnetic environment around the eMMC chip and collecting relevant data.

[0049] (2) Control unit: Based on the data collected by the sensor, the control unit will perform real-time analysis and calculate the electric and magnetic field parameters that need to be adjusted.

[0050] (3) Electric field and magnetic field regulator: According to the instructions of the control unit, the electric field and magnetic field regulator will adjust the parameters of the electromagnetic field source (such as current magnitude, direction, etc.) to generate corresponding electric field and magnetic field.

[0051] (4) Electromagnetic field source: This includes electromagnetic coils and magnetic materials, used to generate electric and magnetic fields. The electromagnetic field source needs to be precisely controlled to ensure that the generated electromagnetic field can offset the electromagnetic environment around the eMM chip and achieve a balanced state. Figure 3 It is a specific implementation form of a basic electromagnetic balance circuit.

[0052] Those skilled in the art can make appropriate adjustments and changes to the basic electromagnetic balance circuit as needed to ensure electromagnetic balance.

[0053] (5) Feedback: Through the feedback system, the electromagnetic balance module can monitor the adjusted electromagnetic environment status in real time and continue to adjust as needed to ensure that the eMMC chip is always in a stable electromagnetic environment.

[0054] In summary, the electromagnetic balance module provides stable electromagnetic balance conditions for the eMMC chip by real-time monitoring, analysis, and adjustment of electromagnetic field source parameters. This design helps reduce electromagnetic interference and improve the stability and reliability of the eMMC chip.

[0055] 2. The electromagnetic balance module is used to adjust the magnetic field to ensure that the magnetic field remains balanced during the test. The test circuit is connected to the FPGA to perform read and write operations and obtain relevant signals.

[0056] 3. FPGA is used to read and write the eMMC chip to be tested, and the signal analyzer is used to monitor and record the signal waveform and signal strength.

[0057] 4. Install the eMMC chip to be tested on the FPGA of the test equipment.

[0058] 5. Set test parameters. Set relevant parameters in the test device, including size, electromagnetic balance conditions, etc. Adjust parameters as needed to achieve different test objectives.

[0059] In the test equipment, the electromagnetic balance module provides stable electromagnetic balance conditions for the eMMC chip. This balance condition can be achieved by controlling the module's parameters. As we know, when the magnetic field in a conductor changes, an induced current is generated in the conductor. Using this magnetic field change to adjust the voltage allows for faster and more precise adjustment of the eMMC input current, voltage, and other parameters, suppressing harmonics and improving the power factor.

[0060] 6. Perform read and write operations. The FPGA sends read and write commands to the eMMC chip and reads the returned data. During the read and write process, the electromagnetic balance circuit remains stable to ensure signal reliability.

[0061] Use the FPGA read / write module in the test equipment to perform read / write operations on the eMMC chip. Read / write operations can include reading data, writing data, and erasing data.

[0062] 7. Record the test results. Based on the results of the read and write operations, record the stability and reliability of the relevant signals. A data acquisition system can be used to record and analyze the signals.

[0063] Use a signal analyzer to monitor and record the signal waveform and signal strength during read and write operations. The signal analyzer can be connected to the signal line of the eMMC chip to monitor and record signal changes in real time.

[0064] 8. Based on the data recorded by the signal analyzer, evaluate the stability and reliability of the read and write operations of the eMMC chip under electromagnetic balance conditions.

[0065] Evaluation can include analyzing characteristics such as the shape, amplitude, and frequency of the signal waveform, as well as comparing differences and changes between different read and write operations.

[0066] Example 2:

[0067] The electromagnetic balance module regulates and controls parameters including voltage and power. When the magnetic field in the conductor changes, an induced current is generated. The voltage is adjusted using this magnetic field change. This allows for faster and more accurate adjustment of the current and voltage input to the eMMC, suppressing harmonics, improving the power factor, reducing electromagnetic interference generated by the load, and effectively reducing the transmission of useless power in the system, ensuring that the magnetic field remains balanced during testing.

[0068] Under electromagnetic balance conditions, a read / write module such as FPGA is used to perform read / write operations on the eMMC chip to be tested, and a signal analyzer is used to monitor and record signal waveforms and signal strength.

[0069] When the eMMC chip to be tested is installed and the same read and write operations are repeated, if the waveform, amplitude, and frequency obtained by the signal analysis recorder are the same, it indicates that the eMMC chip is reliable. If the waveform, amplitude, and frequency obtained by the signal analysis recorder are different, it indicates that the reliability of the eMMC chip is questionable.

[0070] Under electromagnetic balance conditions, when a read / write module such as an FPGA performs different read / write operations, if the waveforms, amplitudes, and frequencies obtained by the signal analysis recorder are similar or proportional, it indicates that the eMMC chip is reliable. If the waveforms, amplitudes, and frequencies obtained by the signal analysis recorder are dissimilar or irregular, it indicates that the reliability of the eMMC chip is questionable.

[0071] Example 3:

[0072] Those skilled in the art encapsulate the test method into a storage medium, on which a computer program is stored. When the computer program is executed, it is used to implement the above-mentioned read-write test method for evaluating the reliability of the eMMC based on the electromagnetic balance condition.

[0073] Through the above embodiments, the steps and operation methods of the test method for evaluating the signal reliability of eMMC by reading and writing under electromagnetic balance conditions are specifically described, which provides sufficient support for the feasibility of the invention.

[0074] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

Claims

1. A read / write test device for evaluating the reliability of eMMC under electromagnetic balance conditions, characterized in that include: The read / write module is connected to the eMMC chip to be tested by a bidirectional signal and is used to perform read and write operations on the eMMC chip to be tested; An electromagnetic balance module, including an electromagnetic balance circuit whose voltage and power parameters can be adjusted according to changes in the magnetic field. The electromagnetic balance circuit is respectively connected to the read / write module and the eMMC chip to be tested, and is used to generate an electric field and a magnetic field to offset the electromagnetic field around the eMMC chip to be tested and achieve an electromagnetic balance condition; The signal analyzer is connected to the signal line of the eMMC chip to be tested and is connected to the signal of the read-write module. It monitors and records the electrical information data and signal changes of the eMMC chip to be tested in real time, and transmits instruction information data to the read-write module.

2. The read / write test device for evaluating eMMC reliability under electromagnetic balance conditions according to claim 1, characterized in that During the test, the eMMC chip to be tested realizes signal interaction and electrical connection with the host HOST in the normal working mode set by the target product.

3. The read-write test device for evaluating eMMC reliability under electromagnetic balance conditions according to claim 1, characterized in that The signal analyzer is set to monitor and record the signal waveform and signal strength.

4. The read / write test device for evaluating the reliability of eMMC under electromagnetic balance conditions according to claim 1, characterized in that The read-write module is an FPGA programmable chip.

5. A read-write test method for evaluating the reliability of eMMC based on electromagnetic balance conditions, characterized in that The steps include: S1. Connect the eMMC chip to be tested to the test device; S2. Using the electromagnetic balance module to provide a stable electromagnetic balance condition for the eMMC chip to be tested; S3. Perform read and write operations on the eMMC chip to be tested using the read / write module. During the read and write operations, the electromagnetic balance circuit of the circuit remains stable. S4. Monitor and record the signal waveform and signal strength of the eMMC chip to be tested during the read and write operations using a signal analyzer; S5. Evaluate the reliability of read and write operations of the eMMC chip under electromagnetic balance conditions based on the data recorded by the signal analyzer.

6. The read-write test method for evaluating eMMC reliability based on electromagnetic balance conditions according to claim 5, characterized in that Step S2 adjusts the current, voltage, and power parameters input to the emmc chip to be tested by changing the magnetic field control parameters, suppresses harmonics, improves the power factor, and achieves electromagnetic balance; the magnetic field control parameters include at least voltage and power.

7. The read-write test method for evaluating eMMC reliability based on electromagnetic balance conditions according to claim 5, characterized in that In step S2, different or same electromagnetic balance conditions and electromagnetic magnitudes are set in different read and write operation modes to achieve the test purpose under different conditions.

8. The read-write test method for evaluating eMMC reliability based on electromagnetic balance conditions according to claim 5, characterized in that The read and write operations in step S3 include but are not limited to reading data, writing data, and erasing data.

9. The read-write test method for evaluating eMMC reliability based on electromagnetic balance conditions according to claim 5, characterized in that The evaluation in step S5 includes analyzing the shape, amplitude and frequency of the signal waveform, and comparing the differences and changes in the signal waveform, amplitude and frequency between different read and write operations.

10. A storage medium storing a computer program, characterized in that: When the computer program is executed, it is used to implement the read-write test method for evaluating the reliability of eMMC based on electromagnetic balance conditions as described in any one of claims 5 to 9.

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