I. San 'an Photoelectricity
Compound semiconductor OEM, has completed some production line layout of GaN, and is the leader of GaN. Sanan Optoelectronics is mainly engaged in the research, development, production and sales of full color ultrasound high brightness LED epitaxial wafers, chips, III-V compound semiconductor materials, microwave communication integrated circuits, power devices and optical communication components. , the product performance index ranks at the international advanced level.
Second, Wen Tai technology.
The Transphorm invested by Anshi has obtained the vehicle code certification, and the on-board GaN has been mass-produced, making it one of the best suppliers of gallium nitride in the world.
The company is mainly engaged in two major business sectors: communication and semiconductor. At present, it has formed a huge industrial layout from chip design, wafer manufacturing and semiconductor packaging testing to industrial Internet of Things, communication terminals, notebook computers, Internet of Things and automotive electronic products. The communication business sector includes mobile phones, tablet computers, notebook computers, Internet of Things, automotive electronics and other fields.
Third, Naiwei Technology
At present, the company's third-generation semiconductor business mainly refers to the growth of GaN materials and the design of devices. The company has successfully developed an 8-inch silicon-based gallium nitride epitaxial wafer and is continuing to develop gallium nitride devices.
Beijing Naiwei Technology Co., Ltd. takes sensing technology as the core, closely surrounding the two industrial chains of Internet of Things and special electronics. On the one hand, we will vigorously develop the three core businesses of MEMS, navigation and avionics; on the other hand, we will actively deploy potential businesses such as unmanned systems and third-generation semiconductor materials and devices, and strive to become a first-class private technology enterprise group with high competition threshold.
The company's main products and businesses include MEMS chip process development and wafer manufacturing, navigation systems and devices, avionics systems, etc. Its application fields include communication, biomedicine, industrial science, consumer electronics, aerospace, intelligent transportation and so on.
The company's business covers the whole world, and its customers include special electronic users, global DNA/RNA sequencer giants, new ultrasonic equipment giants, network communication and application giants, and leading enterprises in industrial and consumer market segments.
Fourth, Nanda Optoelectronics
The company's R&D and industrialization projects of high-purity phosphane and arsenane have been included in major national science and technology projects. High-purity phosphane and high-purity arsenane are important raw materials for LED, VLSI and GaAs solar cells.
MO source is the supporting material for the growth of compound semiconductor ultra-thin film materials by MOCVD technology. Compound semiconductors are mainly used to manufacture high-brightness light-emitting tubes, high-mobility transistors, semiconductor lasers, solar cells and other devices, and also have bright prospects in infrared detection, ultra-high-speed computers and so on.
Verb (abbreviation for verb) Hailu Heavy Industry
Jiangsu Nenghua Microelectronics Technology Development Co., Ltd., a subsidiary of Jiangsu Nenghua Microelectronics Technology Development Co., Ltd., specializes in R&D, producing high-performance composite semiconductor wafers represented by gallium nitride (GaN) and using them as successful devices.
Suzhou Hailu Heavy Industry Co., Ltd. is located in Zhangjiagang Development Zone, Jiangsu Province. Is a first-class professional design and manufacturing enterprise of energy-saving and environmental protection equipment in China. At present, the business pattern of boiler products, large pressure vessels, nuclear power equipment, low-temperature products and environmental protection projects has been initially formed.
Extended information 1. Application of gallium nitride in new electronic devices
GaN material series has low heat generation rate and high breakdown electric field, and is an important material for developing high-temperature and high-power electronic devices and high-frequency microwave devices. At present, with the progress of MBE technology in the application of GaN materials and the breakthrough of key thin film growth technologies, a variety of GaN heterostructures have been successfully grown.
New devices, such as metal field effect transistor (MESFET), heterojunction field effect transistor (HFET) and modulation doped field effect transistor (MODFET), have been fabricated with GaN materials.
The modulated doped AlGaN/GaN structure has high electron mobility (2000 cm2/v s), high saturation speed (1× 107cm/s) and low dielectric constant, so it is the first choice for making microwave devices. GaN has a wide band gap (3.4eV) and sapphire as the substrate, which has good heat dissipation performance and is beneficial to the device working under high power conditions.
Second, the application of gallium nitride in photoelectric devices
GaN material series is an ideal short-wavelength light-emitting device material, and the band gap of GaN and its alloys covers the spectral range from red light to ultraviolet light. Since 199 1 year, Japan has developed homogeneous junction GaN blue LED, and InGaN/AlGaN double heterojunction ultra-bright blue LED and InGaN single quantum well GaNLED have come out one after another.
At present, Zcd and 6cd single quantum well GaN blue-green LEDs have entered the mass production stage, filling the blank of blue LEDs in the market for many years. See Figure 3 for the development course of LED marked by light efficiency.
Blue light emitting devices have a huge application market in high-density optical disk information access, all-optical display, laser printers and other fields. With the development of group III nitride materials and devices, GaInN ultra-high blue and green LED technology has been commercialized, and now major companies and research institutions around the world have invested heavily in developing blue LEDs.