In the field of microelectronics, high-tech communication fields such as mobile communication, optical fiber communication and satellite communication, as well as radio and television, global positioning Navigation, ultra-high speed computer, information security, radar, military communication, military electronics and other fields are widely used. In the optoelectronic field, using the high electro-optic conversion efficiency characteristics of the direct transition energy band structure of gallium arsenide, various optoelectronic devices such as light emitting diodes (LEDs), lasers (LD) and photodetectors are widely used in the fields of backlight display, semiconductor lighting, automobile, smart phone, wearable and security equipment.
Gallium arsenide (GaAs) is one of the most important materials in the second generation of new compound semiconductors after silicon single crystal. It has excellent performance, high electron mobility and photoelectric conversion efficiency. It is widely used in the field of microelectronics and optoelectronics, especially in the process of 5g commercialization. Domestic manufacturers only provide conductive gallium arsenide, which has been in the market environment of low price competition. Foreign manufacturers mainly provide semi insulating gallium arsenide, and the market was once in short supply.
Compared with common silicon semiconductors, GaAs semiconductors have the characteristics of high frequency, radiation resistance, high voltage resistance and so on. Therefore, GaAs semiconductors are widely used in mainstream commercial wireless communication, optical communication and advanced national defense, aviation and satellite applications. The popularization of wireless communication is an important driving force for the birth of GaAs OEM business model. Taking mobile phone and wireless network (Wi Fi) as an example, the key components of the wireless RF module in the system must be power amplifier, RF switch and low noise amplifier. At present, most RF power amplifiers are made of GaAs semiconductor. GaAs semiconductor has become an important key component of wireless communication, optical communication and advanced national defense, aviation and satellite due to its material characteristics. At the same time, it also constructs wafer foundry technology, design process and verification mode different from silicon and other semiconductors to meet the rapid development of wireless communication system, so as to maintain its exclusivity and uniqueness in the field.
In terms of the current technical trend and technical development level, gallium arsenide is mainly used in the fields of communication, national defense and aerospace, accounting for 60% and 10% respectively.