As an important part of the semiconductor industry, semiconductor testing has been receiving a lot of attention. As semiconductor process technology continues to improve, testing and verification has become more important. Therefore, it is a basic skill that semiconductor R&D practitioners must master.

In recent years, along with the development of new-generation information technology such as artificial intelligence, big data and the Internet of Things, the global semiconductor industry has ushered in another boom cycle.semiconductor system In order to solve the contradiction of mismatch between demand and supply, China is vigorously developing the semiconductor industry with a view to realizing domestic substitution. Since the implementation of the large fund in 2014, China's semiconductor industry chain has developed rapidly, and will continue to strengthen the position of the semiconductor industry in the future.

The importance of semiconductor testing is becoming more and more prominent.

With the development of technology, semiconductor chip transistor density is getting higher and higher, and the complexity and integration of related products show exponential growth, which is an unprecedented challenge for chip design and development.semiconductor test system On the other hand, with the shortening of the development cycle of the chip, the success rate of the flow of the chip is very high, and any failure is unbearable for the enterprise. For this reason, the chip design and development process needs to be fully verified and tested. In addition, the semiconductor process continues to improve, need to face a large number of technical challenges, testing and verification has become more important.

At the same time, the development of new industries also further highlights the importance of semiconductor testing. For example, 5G cell phones will appear in 2019, driven by domestic and foreign manufacturers. With the dramatic increase in communication speeds, unprecedented challenges are posed to both baseband and RF front-end. As more modes need to be supported, RF front ends will also integrate more modules such as power amplifiers, low noise amplifiers (LNAs), diplexers, and antenna switches into a single component.semiconductor solutions Testing becomes very important during development, design and production. Only by accurately measuring the individual parameters of the components can the design be optimized accordingly and the production success rate of the product be increased.

How is semiconductor testing done?

Although semiconductor testing is required in mass production, labs, wafers, etc., and is complex, electrical testing is the most fundamental part of the process. Any semiconductor device or module, in the process of research and development, design and production, this link is inevitable.

In the electrical performance test link, the most advanced test program is the Source Measurement Unit (SMU), a precision power supply instrument with voltage output and measurement, as well as current output and measurement functions. This control of voltage and current gives you the flexibility to calculate resistance and power by Ohm's law. It can simultaneously control and measure high-precision voltage and current, and is designed to provide electrical performance testing for consumer electronics, IC design and verification, biomedical, academic research and other laboratories.

At present, the market can provide source measurement unit (SMU) manufacturers are also many, there are also many related products. However, it is not true that the more expensive the test equipment, the higher the test accuracy. In order to truly master the Source Measurement Unit (SMU), we must first be clear about the causes of errors and effective ways to minimize them.

For semiconductor chips, the cost of a single wafer flow is up to millions of RMB, and any minor adjustment of test instrument parameters may produce different results. Any small adjustment to the parameters of the test instrument may produce different results. A small mistake can lead to a huge difference! To this end, we have prepared a practical guide for semiconductor practitioners on Source Measurement Unit (SMU), which provides specific instructions on measurement accuracy, measurement speed, wire resistance elimination, offset voltage compensation, minimizing external noise, avoiding current leakage, and calibration, etc. We hope that it will be helpful to you.

精選文章:

Five Reasons for the Global Semiconductor Shortage

What is a semiconductor and what does it do?

Basic Physical Concepts and Their Applications in Modern Technology

About longchin866