China IC Single-Crystal Manufacturers, Suppliers, Factory

Within the silicon carbide (SiC) industry chain, substrate suppliers hold significant leverage, primarily due to value distribution. SiC substrates account for 47% of the total value, followed by epitaxial layers at 23%, while device design and manufacturing constitute the remaining 30%. This inverted value chain stems from the high technological barriers inherent to substrate and epitaxial layer production. Three major challenges plague SiC substrate growth: stringent growth conditions, slow growth rates, and demanding crystallographic requirements. These complexities contribute to increased processing difficulty, ultimately resulting in low product yields and high costs. Furthermore, the epitaxial layer’s thickness and doping concentration are critical parameters directly impacting the final device performance.

Silicon carbide (SiC) is highly favored in the semiconductor industry for its excellent physical and chemical properties. However, the high hardness and brittleness of SiC pose considerable challenges to its processing.

Behind every high-temperature process in wafer manufacturing lies a silent yet crucial player: the wafer boat. As the core carrier that directly contacts the silicon wafer during the wafer processing, its material, stability, and cleanliness are directly related to the final chip yield and process stability. Among various carrier materials, silicon carbide (SiC) boats are gradually replacing traditional quartz solutions, becoming the preferred solution for advanced processes and high-end equipment.

Power semiconductors (also known as power electronic devices) are core components for power conversion and circuit control in electronic devices.

Graphite susceptor is one of the essential parts in the MOCVD equipment, is the carrier and the heater of the wafer substrate. Its properties of thermal stability and thermal uniformity play a decisive role in the quality of wafer epitaxial growth, which directly determines the uniformity and purity of the layer materials, in a result its quality directly affects the preparation of epitaxy.

Among the core components of electric vehicles, automotive power modules—primarily utilizing IGBT technology—play a crucial role. These modules not only determine the key performance of the electric drive system but also account for over 40% of the cost of the motor inverter.