China sic coated graphite Manufacturers, Suppliers, Factory

Both epitaxial and diffused wafers are essential materials in semiconductor manufacturing, but they differ significantly in their fabrication processes and target applications. This article delves into the key distinctions between these wafer types.

Wafers are essential raw materials for integrated circuits, power devices, and semiconductor discrete devices. Over 90% of integrated circuits are manufactured using high-purity, high-quality wafers. The quality and supply capacity of these wafers within the industry are directly linked to the overall performance and competitiveness of integrated circuits. In this discussion, we will introduce the wafer manufacturing process in detail.

The third-generation wide bandgap semiconductor materials, such as Gallium Nitride (GaN) and Silicon Carbide (SiC), are renowned for their exceptional optoelectronic conversion and microwave signal transmission capabilities. These materials meet the demanding requirements of high-frequency, high-temperature, high-power, and radiation-resistant electronic devices. Therefore, they have vast application prospects in new-generation mobile communications, new energy vehicles, smart grids, and LED technologies. The comprehensive development of the third-generation semiconductor industry urgently requires breakthroughs in key core technologies, continual advancement in device design and innovation, and a resolution to import dependencies.

C/C composite is a carbon-carbon composite material made of carbon fibers as reinforcement and carbon as matrix through processing and carbonization, with excellent mechanical and high-temperature resistance properties. The material was initially used in aerospace and special fields, and with the maturity of the technology, it has been gradually used in photovoltaic, automotive, lithium battery, medical devices and other fields.

Silicon Carbide generally uses the PVT method, with a temperature of more than 2000 degrees, a long processing cycle, and low output, so the cost of Silicon Carbide substrates is very high.