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What aspects does the appearance quality inspection of electronic components include?

Date:2021-10-19 16:10:55

With the development of science and technology, there are more and more kinds of electronic components, about 10000 kinds. Its application fields are also very wide, such as thyristor (SCR), inductance coil, transformer, crystal oscillator, earphone, resistance, capacitance, etc. they all use electronic components. In the production process, any product will produce some bad appearance, of course, electronic components are no exception. What aspects does the appearance quality inspection of electronic components include? View >>

What are the reasons for the sudden failure of components? How to find and replace?

Date:2021-10-19 15:35:06

Why do components sometimes fail for no reason? The integrated circuit structure follows Moore's law and becomes smaller and smaller. The migration of materials at normal operating temperature increases the risk of device failure in decades. In addition, fatigue caused by magnetostriction can lead to inductive mechanical fatigue, which is a well-known effect. Some types of resistance materials will oxidize slowly in the air, and the oxidation rate will accelerate when the air becomes more humid. View >>

Chip testing: reliability test methods and classification of electronic components

Date:2021-10-19 14:55:00

Chip test is generally divided into final test and wafer test from the test object. They refer to the encapsulated chips and the chips that have not been encapsulated. Why is it divided into two paragraphs? In short, because the packaging also has cost, in order to save the cost as much as possible, some tests may be carried out before the chip packaging to eliminate some broken chips. In order to ensure that the factory chips are all OK, the final test, that is, FT test, is the last interception and a necessary link. View >>

What are the chip function detection methods? Third party testing organization

Date:2021-10-19 14:25:00

With the increasing demand for miniaturization of electronic equipment, there are more and more functions of a single chip. In the prior art, in order to ensure the quality of the chip, the process from design molding to mass production usually includes the chip detection stage. However, the traditional chip debugging technology is a set of test program for the function additionally developed based on the chip function. It usually can only detect whether the chip has errors or faults, and can not accurately locate the errors in the chip terminal. It can only be judged by the experience of the tester, resulting in the slow speed and low efficiency of chip detection. View >>

Steps and characteristics of cyclic salt spray corrosion test

Date:2021-10-19 13:37:00

Cyclic corrosion test (CCT) has been developed in the automotive industry in recent years. It is a method to accelerate the corrosion failure in the real world under the condition of laboratory control. As the name suggests, the test includes different climates, which will cycle automatically, so the tested samples will experience the same changing environment as nature. The purpose is to cause naturally occurring fault types, but faster, i.e. acceleration. By doing so, manufacturers and suppliers can more accurately predict the expected service life of their products. The lack of correlation between the results obtained by the traditional salt spray test and the "real-world" atmospheric corrosion of vehicles makes the automotive industry lack a reliable test method to predict the expected service life of its products. View >>

What are the items and methods to detect the reliability of connectors?

Date:2021-10-18 17:05:00

Connector is an indispensable component in electronic equipment. If you observe along the current flow path, you will always find one or more connectors. It is also a component that our electronic engineers and technicians often contact. It is used to build a communication bridge between blocked or isolated circuits in the circuit, so as to make the current flow and realize the predetermined function of the circuit. With the development of society and the progress of science and technology, connectors are playing a more and more important role in various fields. In order to ensure their safety and durability, it is essential to test the reliability of connectors. View >>

What is weather resistance? Introduction to weathering test items of environmental test

Date:2021-10-18 16:56:00

What is weather resistance? Weather resistance, also known as reliability test, refers to a series of aging phenomena such as fading, discoloration, cracking, pulverization and strength decline of materials such as coatings, building plastics and rubber products due to the influence of external conditions such as sunlight, temperature change, wind and rain. Ultraviolet radiation is the key factor to promote the aging of plastics. View >>

How to select appropriate test items for "reliability test" electronic components?

Date:2021-10-18 15:44:12

With the continuous development of electronic and electrical products, their varieties are more and more complex and comprehensive, and China's provisions on the testing standards of electronic components are also relatively standardized. Reliability test is very important for the durability of products. For example, the reliability test of temperature and humidity can reflect the state of electronic products under extreme high and low temperatures. This test of temperature and humidity can test the impact of climate on electronic products. How to choose suitable component testing items without detours? Next, let's introduce the testing items of electronic products. View >>

Third party inspection of electronic components: how to judge the product quality?

Date:2021-10-18 14:46:20

Electronic component testing is the application of testing service industry technology in electronic information industry. With the great improvement of intelligence, the reliability requirements of electronic products have become an important index to measure the quality of electronic products. This is also an important link in the specific industrial chain of electronic components. The technical level of testing service is closely related to the quality of electronic components. Let's take a look at how to judge the quality of electronic components? View >>

How does machine vision appearance equipment detect component defects?

Date:2021-10-18 14:42:41

Appearance detection is a detection equipment based on machine vision system. It can replace the traditional manual detection, realize the online high-speed automatic detection of product appearance and the automatic identification of product surface defects. Foreign machine vision inspection equipment is a kind of machine equipment developed and expanded in recent years, which can replace human eyes to inspect all relevant links of enterprise products. View >>

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