What is the difference between ICT and FCT in 华体会体育·(中国)股份有限公司官网A test?
In the process of 华体会体育·(中国)股份有限公司官网A processing, it usually includes a series of processes such as component procurement, SMT chip processing, DIP plug-in processing, 华体会体育·(中国)股份有限公司官网A testing and finished product assembly.
1. The meaning of 华体会体育·(中国)股份有限公司官网A test 华体会体育·(中国)股份有限公司官网A test, which is translated into 华体会体育·(中国)股份有限公司官网a test in English, is a very important process in the 华体会体育·(中国)股份有限公司官网A processing process. It is generally at the back end of the production link, specifically refers to the performance test of 华体会体育·(中国)股份有限公司官网A boards. 华体会体育·(中国)股份有限公司官网A testing is actually a series of processes in the process of 华体会体育·(中国)股份有限公司官网A processing, including component procurement, SMT chip processing, DIP plug-in processing, 华体会体育·(中国)股份有限公司官网A testing and finished product assembly.
华体会体育·(中国)股份有限公司官网A test, which is translated into 华体会体育·(中国)股份有限公司官网a test in English, is a very important process in the process of 华体会体育·(中国)股份有限公司官网A processing. It is generally at the back end of the production link, and specifically refers to the performance test of 华体会体育·(中国)股份有限公司官网A boards. 华体会体育·(中国)股份有限公司官网A test is a general term for all kinds of tests.
2. What does 华体会体育·(中国)股份有限公司官网A test include
华体会体育·(中国)股份有限公司官网A test is an important means to strictly control the delivery quality. 华体会体育·(中国)股份有限公司官网A test includes many kinds of tests, mainly including ICT test, FCT test, aging test, fatigue test, vibration test, high and low temperature test.
3. 华体会体育·(中国)股份有限公司官网A test fixture
Professional 华体会体育·(中国)股份有限公司官网A test equipment (such as ICT tester and FCT tester) is powerful, but the price is very expensive. Therefore, general 华体会体育·(中国)股份有限公司官网A processing plants will use 华体会体育·(中国)股份有限公司官网A test jigs for testing. The general test fixture can test the voltage, current, power and frequency with high speed and accuracy.
4. 华体会体育·(中国)股份有限公司官网A test point
Generally, 华体会体育·(中国)股份有限公司官网A boards have special 华体会体育·(中国)股份有限公司官网A test points. The 华体会体育·(中国)股份有限公司官网A test equipment contacts the test points of 华体会体育·(中国)股份有限公司官网A boards through probes to inspect the performance of 华体会体育·(中国)股份有限公司官网A boards with incoming materials.
In SIMple terms, 华体会体育·(中国)股份有限公司官网A testing is to use special equipment to test 华体会体育·(中国)股份有限公司官网A circuit boards to judge the quality of 华体会体育·(中国)股份有限公司官网A circuit boards and ensure that the products shipped to customers are intact.
华体会体育·(中国)股份有限公司官网A circuit boards are generally subject to strict electrical and performance tests before being delivered to customers. In 华体会体育·(中国)股份有限公司官网A test, the most common are FCT function test and ICT electrical component test.
华体会体育·(中国)股份有限公司官网A test is a key step to ensure the delivery quality. General customers need to provide a test plan, including test points, procedures, test steps, etc. 华体会体育·(中国)股份有限公司官网A electronic manufacturer shall perform corresponding ICT and FCT tests according to design documents. ICT (In circuit Test) is mainly aimed at component level. It is an important means to detect the value and polarity of resistance, capacitance, inductance and other components by contacting the pin of each component on the 华体会体育·(中国)股份有限公司官网A board and measuring whether its value is consistent with the nominal value.
However, with the rapid development of the manufacturing capability of the electronic industry, ICT testing has become less and less, because the quality of many components can reach below 50PPM, fully meeting the process yield of electronic products. At this point, FCT (Function Test) is particularly important. The 华体会体育·(中国)股份有限公司官网A manufacturer will issue the FCT test rack according to the design documents, place the 华体会体育·(中国)股份有限公司官网A board on the test rack, capture the test points on the 华体会体育·(中国)股份有限公司官网A board, write the program through the burner, and then simulate the input and output actions of the product to achieve the test purpose. In some cases, the upper computer software is also required to cooperate. FCT test is a kind of functional test close to the product level, which can effectively cover the product performance range and is a very effective means.
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