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Pengxin semiconductor testing laboratory
What is IC testing? Any integrated circuit is a single-chip module designed to complete a certain electrical characteristic function. IC test is the test of integrated circuit, which is to use various methods to detect those samples that do not meet the requirements due to physical defects in the manufacturing process. Thus, it is an important link to ensure product yield and cost control, and plays an important role in IC production process.
IC test is an important link in the production process of integrated circuits. The main purpose of the test is to ensure that the chip can fully realize the functions and performance indicators specified in the design specification under harsh environment. Each test will produce a series of test data. Since the test program is usually composed of a series of test items, the chip is fully tested from all aspects, It can not only judge whether the chip performance meets the standard and can enter the market, but also fully and quantitatively reflect various indexes of each chip from structure, function to electrical characteristics from the detailed data of test results. Therefore, testing the integrated circuit can effectively improve the yield and production efficiency of the chip.
What tests does the chip need to do? It is mainly divided into three categories: chip function test, performance test and reliability test. The three tests for chip products to be listed are indispensable.
The function test is to see whether the chip is right, the performance test is to see whether the chip is good, the reliability test is to see whether the chip is firm, and the function test is to test the parameters, indicators and functions of the chip. Performance test, because there are countless possible steps to introduce defects in the production and manufacturing process of chips, even if the same batch of wafers and packaging finished products, the chips are good or bad, so they need to be screened. People say that it is to pick stones from eggs and throw away the "stone" chips. Reliability test: the chip has passed the function and performance test and got a good chip. However, whether the chip will be damaged by the most annoying static electricity in winter, whether it can work normally in thunderstorm, dog days and snowy days, and whether the chip can be used for one month, one year or ten years should be evaluated by reliability test.
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