CN113125887B - Method and device for verifying ESD performance of automobile electrical appliance part - Google Patents
Method and device for verifying ESD performance of automobile electrical appliance part Download PDFInfo
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- CN113125887B CN113125887B CN202110424887.7A CN202110424887A CN113125887B CN 113125887 B CN113125887 B CN 113125887B CN 202110424887 A CN202110424887 A CN 202110424887A CN 113125887 B CN113125887 B CN 113125887B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012795 verification Methods 0.000 claims abstract description 76
- 238000012360 testing method Methods 0.000 claims abstract description 64
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 230000032683 aging Effects 0.000 claims abstract description 12
- 238000009863 impact test Methods 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 claims description 35
- 238000012545 processing Methods 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
Abstract
The invention provides a method and a device for verifying ESD performance of an automobile electrical appliance part, wherein the method comprises the following steps: performing first function verification on the electrical appliance part to be tested, and performing first measurement on the protection circuit parameters of the port of the electrical appliance part to be tested; performing first ESD performance index test verification without power-on; performing a second function verification on the electrical appliance part to be tested, and performing a second measurement on the protection circuit parameters of the port; after power-on, performing a second ESD performance index test verification; performing third function verification on the electrical appliance parts to be tested, and performing third measurement on the protection circuit parameters of the port; carrying out a temperature impact test, a temperature-humidity alternating test and/or an aging test on the electrical parts to be tested; and performing fourth function verification on the electrical appliance part to be tested, and performing fourth measurement on the protection circuit parameters of the port. In the invention, the functional verification test is performed before the ESD performance verification, so that the reliability of the product in the whole life cycle is ensured.
Description
Technical Field
The invention relates to the field of electronic components, in particular to a method and a device for verifying ESD performance of an automobile electrical appliance part.
Background
The standards of electronic safety and reliability of automobiles have been remarkably improved with the development of new technologies, and designers are required to fully understand the requirements of automobile authentication standards required for protecting electronic products in design and manufacture. For example, semiconductors used in forefront automotive electronics rely on the latest integrated circuit technology in the marketplace, which are continually becoming smaller and faster and thus more vulnerable to electrostatic discharge (ESD).
Currently, the ESD requirements of automotive parts are widely adopted by ISO10605 standard requirements for evaluating ESD testing methods of electronic modules developed for vehicles. The gradual aging of electronic components such as resistors, capacitors, etc. during use, the reduction of nominal values and performance are normal phenomena, but the consequent EMC risk is extremely high. The conventional ESD verification cannot meet the application requirements of the off-road vehicle in arid, high-temperature and other areas and under extreme road conditions, and potential failure risks exist.
Disclosure of Invention
The embodiment of the invention provides a method and a device for verifying the ESD performance of an automobile electrical part, which are used for solving the problem that the conventional ESD verification cannot meet the application requirements of an off-road vehicle in arid, high-temperature and other areas and under extreme road conditions, and has potential failure risks.
In order to solve the above problems, the present invention is achieved as follows:
in a first aspect, an embodiment of the present invention provides a method for verifying ESD performance of an electrical apparatus component of an automobile, including:
performing first function verification on an electrical appliance part to be tested, and performing first measurement on protection circuit parameters of a port of the electrical appliance part to be tested;
the electrical appliance part to be tested is not electrified, and the first ESD performance index test verification is carried out; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
after the electrical appliance part to be tested is electrified, carrying out a second ESD performance index test verification; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
carrying out a temperature impact test, a temperature-humidity alternating test and/or an aging test on the electrical component to be tested;
and performing fourth functional verification on the to-be-tested electrical appliance part, and performing fourth measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part.
Optionally, outputting the function verification result of each time and the protection circuit parameters of the port of the electrical component to be tested measured of each time.
Optionally, the protection circuit parameters of the port of the electrical component to be tested include at least one of the following: resistance, capacitance, inductance, and ground impedance.
Optionally, the ESD performance indicator includes at least one of: discharge type, test grade, phantom, and number of discharges per time interval.
Optionally, the discharge type includes: contact discharge and air discharge.
Optionally, the electrical appliance to be tested is not electrified, and when the first ESD performance index test verification is performed, parameters of the contact discharge and the human body model during the air discharge are the same as parameters of the discharge times in each interval time.
Optionally, after the electrical appliance to be tested is powered on, when the second ESD performance index test verification is performed, parameters of the human body model and the discharge times per interval time during the contact discharge and the air discharge are different.
In a second aspect, an embodiment of the present invention provides a device for verifying ESD performance of an electrical component of an automobile, including:
the first processing module is used for performing first function verification on the to-be-tested electrical appliance part, and simultaneously performing first measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the second processing module is used for testing and verifying the first ESD performance index without electrifying the electrical appliance part to be tested; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the third processing module is used for carrying out a second ESD performance index test verification after the electric appliance part to be tested is electrified; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the test module is used for carrying out temperature impact test, temperature-humidity alternation test and/or aging test on the electrical component to be tested;
and the fourth processing module is used for performing fourth function verification on the to-be-tested electrical appliance part and performing fourth measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part.
Optionally, the output module is used for outputting the function verification result of each time and the protection circuit parameters of the port of the electrical component to be tested measured of each time.
Optionally, the protection circuit parameters of the port of the electrical component to be tested include at least one of the following: resistance, capacitance, inductance, and ground impedance.
Optionally, the ESD performance indicator includes at least one of: discharge type, test grade, phantom, and number of discharges per time interval.
Optionally, the discharge type includes: contact discharge and air discharge.
Optionally, the electrical appliance to be tested is not electrified, and when the first ESD performance index test verification is performed, parameters of the contact discharge and the human body model during the air discharge are the same as parameters of the discharge times in each interval time.
Optionally, after the electrical appliance to be tested is powered on, when the second ESD performance index test verification is performed, parameters of the human body model and the discharge times per interval time during the contact discharge and the air discharge are different.
In a third aspect, the present invention provides a terminal, comprising: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method of verifying ESD performance of an automotive electrical component according to any one of the first aspects.
In a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for verifying ESD performance of an automotive electrical component according to any one of the first aspects.
In the embodiment of the invention, the verification closed loop is formed by performing the function verification test before the verification of the ESD performance of the automobile electrical part, and then performing the temperature impact/temperature and humidity alternation or aging test and the like and then verifying the function of the product, so that the ESD reliability of the product in the whole life cycle is ensured, and the ESD performance reliability of the part under the off-road application limit environment is ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic flow chart of a verification method for ESD performance of an automobile electrical component according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of test parameters of a verification method for ESD performance of an electrical apparatus component of an automobile according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of test parameters of another method for verifying ESD performance of an electrical component of an automobile according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a verification device for ESD performance of an electrical apparatus component of an automobile according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the present invention provides a method for verifying ESD performance of an electrical apparatus component of an automobile, including:
step 11: performing first function verification on an electrical appliance part to be tested, and performing first measurement on protection circuit parameters of a port of the electrical appliance part to be tested;
step 12: the electrical appliance part to be tested is not electrified, and the first ESD performance index test verification is carried out; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
step 13: after the electrical appliance part to be tested is electrified, carrying out a second ESD performance index test verification; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
step 14: carrying out a temperature impact test, a temperature-humidity alternating test and/or an aging test on the electrical component to be tested;
step 15: and performing fourth functional verification on the to-be-tested electrical appliance part, and performing fourth measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part.
In the embodiment of the present invention, in step 11, the protection circuit parameters of the port of the electrical component to be tested include at least one of the following: resistance, capacitance, inductance and ground impedance; measuring the protection circuit parameters of the port of the electrical appliance part to be tested so as to ensure that the parameters are within the design specification range; referring to fig. 2, in step 12, the electrical component to be tested is not powered on, and ESD performance indexes under the condition of no power on are measured, where the ESD performance indexes include at least one of the following: the discharge type, the test grade, the human body model and the discharge times per interval time, and the specific parameter test value can refer to fig. 2; referring to fig. 3, in step 13, the ESD performance index specific parameter test values may refer to fig. 3; the electrical appliance to be tested is not electrified, and parameters of the human body model and the discharge times in each interval time are the same when the contact discharge and the air discharge are subjected to the first ESD performance index test verification; after the electrical appliance to be tested is electrified, when the second ESD performance index test verification is carried out, parameters of the human body model and the discharge times per interval time are different when the contact discharge and the air discharge are carried out; in step 14, the temperature impact test, the temperature-humidity alternation test and the aging test may be independently or in combination with each other to verify the items; in the test link, the functions of the product are normal, and the protection circuit parameters of the port are within the design specification range, so that the product can be indicated to be effective in ESD protection in the whole life cycle.
In the embodiment of the invention, the verification closed loop is formed by performing the function verification test before the verification of the ESD performance of the automobile electrical part, and then performing the temperature impact/temperature and humidity alternation or aging test and the like and then verifying the function of the product, so that the ESD reliability of the product in the whole life cycle is ensured, and the ESD performance reliability of the part under the off-road application limit environment is ensured.
In the embodiment of the invention, optionally, a function verification result of each time and a protection circuit parameter of a port of the electrical component to be tested measured of each time are output.
In the embodiment of the invention, the function verification result of each time and the protection circuit parameters of the port of the electrical component to be tested measured are output to ensure that the parameters are within the range of design specifications.
In the embodiment of the present invention, optionally, the protection circuit parameters of the port of the electrical component to be tested include at least one of the following: resistance, capacitance, inductance, and ground impedance.
In an embodiment of the present invention, optionally, the ESD performance index includes at least one of: discharge type, test grade, phantom, and number of discharges per time interval.
In an embodiment of the present invention, optionally, the discharge type includes: contact discharge and air discharge.
In the embodiment of the invention, optionally, the electrical appliance to be tested is not electrified, and when the first ESD performance index test verification is performed, parameters of the contact discharge, the human body model when the air discharge is performed, and the discharge times per interval time are the same.
In the embodiment of the present invention, optionally, after the electrical apparatus to be tested is powered on, when the second ESD performance index test verification is performed, parameters of the contact discharge, the mannequin when the air discharge is performed, and the discharge times per interval time are different.
In the embodiment of the invention, the verification closed loop is formed by performing the function verification test before the verification of the ESD performance of the automobile electrical part, and then performing the temperature impact/temperature and humidity alternation or aging test and the like and then verifying the function of the product, so that the ESD reliability of the product in the whole life cycle is ensured, and the ESD performance reliability of the part under the off-road application limit environment is ensured.
Referring to fig. 4, an embodiment of the present invention provides a device for verifying ESD performance of an electrical apparatus component of an automobile, including:
the first processing module 41 is configured to perform a first function verification on an electrical component to be tested, and perform a first measurement on a protection circuit parameter of a port of the electrical component to be tested;
the second processing module 42 is configured to perform a first ESD performance index test verification on the electrical component to be tested without power-up; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
a third processing module 43, configured to perform a second ESD performance index test verification after powering on the electrical component to be tested; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the test module 44 is used for performing a temperature impact test, a temperature-humidity alternation test and/or an aging test on the electrical component to be tested;
the fourth processing module 45 is configured to perform fourth function verification on the electrical component to be tested, and perform fourth measurement on the protection circuit parameter of the port of the electrical component to be tested.
In the embodiment of the invention, the optional output module is used for outputting the function verification result of each time and the protection circuit parameters of the port of the electrical component to be tested measured of each time.
In the embodiment of the present invention, optionally, the protection circuit parameters of the port of the electrical component to be tested include at least one of the following: resistance, capacitance, inductance, and ground impedance.
In an embodiment of the present invention, optionally, the ESD performance index includes at least one of: discharge type, test grade, phantom, and number of discharges per time interval.
In an embodiment of the present invention, optionally, the discharge type includes: contact discharge and air discharge.
In the embodiment of the invention, optionally, the electrical appliance to be tested is not electrified, and when the first ESD performance index test verification is performed, parameters of the contact discharge, the human body model when the air discharge is performed, and the discharge times per interval time are the same.
In the embodiment of the present invention, optionally, after the electrical apparatus to be tested is powered on, when the second ESD performance index test verification is performed, parameters of the contact discharge, the mannequin when the air discharge is performed, and the discharge times per interval time are different.
The message circulation device provided by the embodiment of the invention can realize each process realized by the verification method of the ESD performance of the automobile electrical appliance part in the method embodiment of FIG. 1, and in order to avoid repetition, the description is omitted.
Referring to fig. 5, the embodiment of the present invention further provides a terminal 50, which includes a processor 51, a memory 52, and a computer program stored in the memory 52 and capable of running on the processor 51, where the computer program when executed by the processor 51 implements each process of the above-mentioned method embodiment for verifying ESD performance of an electrical component of an automobile, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, realizes the processes of the above-mentioned method embodiment for verifying the ESD performance of an electrical apparatus component of an automobile, and can achieve the same technical effects, so that repetition is avoided and redundant description is omitted. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a terminal, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (6)
1. The method for verifying the ESD performance of the automobile electrical part is characterized by comprising the following steps:
performing first function verification on an electrical appliance part to be tested, and performing first measurement on protection circuit parameters of a port of the electrical appliance part to be tested;
the electrical appliance part to be tested is not electrified, and the first ESD performance index test verification is carried out; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
after the electrical appliance part to be tested is electrified, carrying out a second ESD performance index test verification; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
carrying out a temperature impact test, a temperature-humidity alternating test and/or an aging test on the electrical component to be tested;
performing fourth function verification on the electrical equipment part to be tested, and performing fourth measurement on the protection circuit parameters of the port of the electrical equipment part to be tested;
the ESD performance indicator comprises at least one of: the discharge type, the test grade, the human body model and the discharge times per interval time; the discharge type includes: contact discharge and air discharge;
when the electrical appliance to be tested is not electrified and is subjected to first ESD performance index test verification, parameters of the human body model and the discharge times in each interval time are the same when the contact discharge and the air discharge are performed;
and after the electric appliance to be tested is electrified, when the second ESD performance index test verification is carried out, parameters of the human body model and the discharge times per interval time are different when the electric appliance to be tested is subjected to contact discharge and air discharge.
2. The method for verifying ESD performance of an automotive electrical component of claim 1, further comprising:
and outputting the function verification result of each time and the protection circuit parameters of the port of the electrical component to be tested measured of each time.
3. The method for verifying the ESD performance of an automotive electrical component according to claim 1, wherein,
the protection circuit parameters of the port of the electrical component to be tested comprise at least one of the following: resistance, capacitance, inductance, and ground impedance.
4. An apparatus for verifying ESD performance of an automotive electrical component, wherein the apparatus performs ESD performance verification of an automotive electrical component using the method for verifying ESD performance of an automotive electrical component according to claim 1;
the device comprises:
the first processing module is used for performing first function verification on the to-be-tested electrical appliance part, and simultaneously performing first measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the second processing module is used for testing and verifying the first ESD performance index without electrifying the electrical appliance part to be tested; performing second function verification on the to-be-tested electrical appliance part, and performing second measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the third processing module is used for carrying out a second ESD performance index test verification after the electric appliance part to be tested is electrified; performing third function verification on the to-be-tested electrical appliance part, and performing third measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part;
the test module is used for carrying out temperature impact test, temperature-humidity alternation test and/or aging test on the electrical component to be tested;
and the fourth processing module is used for performing fourth function verification on the to-be-tested electrical appliance part and performing fourth measurement on the protection circuit parameters of the port of the to-be-tested electrical appliance part.
5. A terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the method for verifying ESD performance of an automotive electrical component according to any one of claims 1-3.
6. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the method for verifying ESD performance of an automotive electrical component according to any one of claims 1-3.
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| CN202110424887.7A CN113125887B (en) | 2021-04-20 | 2021-04-20 | Method and device for verifying ESD performance of automobile electrical appliance part |
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| 传输线脉冲测试分析器件及ESD性能与案例分析;胡晴宇等;《电子质量》;20120720(第07期);第68-71页 * |
| 汽车电器研发的试验内容及方法;杨纯森;《产业与科技论坛》;20120530;第11卷(第10期);第108-109页 * |
| 电子设备中的ESD保护设计;彭圻平等;《无线电工程》;20130605;第43卷(第06期);第61-64页 * |
| 高性能集成电路在片ESD保护设计与评价;于宗光;电子与封装;第2卷(第03期);第34-44页 * |
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