1. Motorola--Motorola Inc. Original name: Galvin Manufacturing Corporation, founded in 1928. In 1947, the name was changed to Motorola and it was used as a trademark from the 1930s. Headquartered in Schaumburg, Illinois, USA, a suburb of Chicago. One of the world's Fortune 100 companies, it is a global leader in chip manufacturing and electronic communications.

2. National Semiconductor (NS)--National Semiconductor of the United States. The company combines real-world analog technology with flawlessly crafted digital technology, focusing on semiconductor products based on analog technology, including independent components and subsystems in areas such as power management, image technology, display drivers, audio, amplifiers and data conversion.

3. ST Microelectronics--STMicroelectronics. It is one of the world's largest semiconductor companies, with net income of US$10.35 billion in 2010 and US$2.57 billion in the second quarter of 2011. Known for the industry's broadest product portfolio, leveraging its diversified technologies, cutting-edge design capabilities, intellectual property portfolio, partner strategy and efficient manufacturing capabilities, STMicroelectronics delivers innovative semiconductor solutions to customers in diverse electronics applications. Provide services.

4. Siemens--Siemens. Germany's Siemens AG, founded in 1847, is a global leader in electronic and electrical engineering.

5. Microsemi, Microsemi Corporation, headquartered in Irvine, California, is a leading designer, manufacturer and marketer of high-performance analog and mixed-signal integrated circuits and high-reliability semiconductors.

6. SGS Thomson Microelectronics--Thomson Microelectronics. Thomson is the largest national conglomerate in France and the fourth largest consumer electronics manufacturer in the world. Thomson is one of the world's four largest consumer electronics manufacturers.

7. ON Semiconductor--ON Semiconductor, mainly produces broadband data application ICs, power management analog ICs, low-voltage power transistors, etc.

8. Central Semiconducto--U.S. Central Semiconductor. The company was founded in 1974 and mainly provides a variety of ultra-small patch packages and low-power discrete semiconductor devices. A series of ultra-small package diodes, transistors, Schottky rectifiers, a new generation of small signal field effect transistors, and new 400V thyristors (SCR) will be launched. Central will also launch small-signal transistors in SOT-883L and SOT-923 packages.