金刚石基板，商业化

Core Viewpoint - The article discusses the advancements in diamond semiconductor technology, particularly the commercialization of high-boron concentration diamond substrates and the development of the world's first n-channel diamond MOSFET transistor, which can operate at extremely high temperatures and voltages, offering significant advantages over traditional silicon-based devices [1][3][4]. Group 1: Diamond Substrate Development - The company EDP has successfully scaled up the size of high-boron concentration diamond substrates to 15mm x 15mm, facilitating the production of larger devices for high-power applications [1]. - The new diamond substrates maintain the same characteristics as the low-resistance diamond substrates commercialized in August 2023, with boron content ranging from 2 to 4 x 10^18/cm³ [2]. - The company aims to further increase the size of single crystals and develop mosaic wafers to connect larger single crystals, expanding the range of epitaxial substrates for various device applications [2]. Group 2: N-Channel Diamond Transistor Innovation - Researchers have developed the first n-channel diamond MOSFET transistor, which can operate at temperatures exceeding 572°F (300°C) and withstand higher voltages than traditional transistors [3][4]. - The n-channel diamond MOSFET exhibits a high field-effect mobility of approximately 150 cm²/V·sec at 573K, marking it as the highest among all wide-bandgap semiconductor n-channel MOSFETs [4][6]. - The diamond's bandgap of 5.47 eV allows devices to operate at higher voltages and frequencies compared to silicon's bandgap of 1.12 eV, enhancing the potential for energy-efficient electronic products [5]. Group 3: Future Applications and Market Potential - The advancements in diamond semiconductor technology are expected to lead to applications in energy-efficient electronics, MEMS-based spintronic devices, and sensors capable of functioning in harsh environments such as space [6]. - Diamond semiconductors are also anticipated to play a role in supercomputers, electric vehicles (EVs), and lighter, more durable consumer electronics [6].