IntroductionSapphire substrates are widely used in optoelectronics and semiconductor industries due to their exceptional mechanical strength, thermal stability, and optical properties. In recent years, with the rapid development of LED, micro-LED, and compound semiconductor techn...

Silicon carbide (SiC), as a wide-bandgap semiconductor material, is highly valued for its exceptional performance in high-power, high-frequency, and high-temperature electronic devices. During SiC epitaxial growth, the silicon face (Si-face) is typically chosen over the carbon fa...

What is Wafer Warpage?Wafer warpage refers to the bending or non-flatness of a wafer surface during manufacturing or processing. It is typically measured as the maximum deviation of the wafer surface from an ideal flat plane and is categorized as positive warpage (upward curvatur...

With the rapid advancement of electronic technology, the demand for high-performance semiconductor devices has significantly increased. Diamond, as a promising emerging semiconductor material, offers exceptional physical properties, making it highly suitable for high-power, high-...

In the field of semiconductors, gallium nitride (GaN) has become a key material for high-frequency, high-power, and optoelectronic device applications due to its excellent electrical and optical properties. The epitaxial substrate, as the foundation for supporting the growth of g...

Infrared optical materials and coating technologies are essential components in optical systems for defense, aerospace, communications, and medical applications. This article explores the characteristics, applications, and coating technologies of five key infrared optical materia...

As semiconductor technology continues to evolve, the demand for high-performance substrate materials is rapidly increasing. Aluminum nitride (AlN), a wide bandgap semiconductor material, stands out for its exceptional physical and chemical properties. It has become a critical ena...

Dummy Wafer is a specialized wafer used in semiconductor manufacturing to meet specific equipment requirements. It is typically not involved in actual product fabrication and is not sold as a finished product. Its primary purpose is to ensure equipment stability, optimize resourc...

Gallium nitride (GaN) is a key wide-bandgap semiconductor material widely used in optoelectronics and high-power electronic devices. To meet the stringent requirements of these high-performance applications, the fabrication of high-quality GaN single-crystal substrates is essenti...

GaN-on-Si LED epitaxial wafers are essential material platforms for high-performance optoelectronic devices. Blue and green light, as the two core wavelength bands of GaN-based LEDs, are widely used in lighting, displays, and other optoelectronic fields. However, due to material ...