Silicon carbide schottky diodes have become an increasingly popular component in new electronic circuit designs, especially power system applications. Their advantages include increased efficiency levels and faster switching speeds; better form factors for overall circuit designs and lower switching times overall. When metal contacts SiC, a Schottky barrier forms and current flows in one direction only; unlike in traditional P-N junction diodes where electrons and holes both flow. Low Voltage Drop Silicon carbide Schottky diodes, also known as SiC diodes or Carbidorundum diodes, offer many key advantages in power circuit designs. They boast reduced forward voltage drop and faster reverse recovery time compared to traditional PN junction diodes while offering …

Silicon Carbide Schottky Diode もっと読む »

Wolfspeed has been at the forefront of silicon carbide for 30 years, becoming market leader with their silicon carbide semiconductor power devices used worldwide in electric vehicles (EV), fast chargers, renewable energy storage solutions and aerospace and defense equipment. Wolfspeed recently extended and enhanced their long-term supply agreement with one of the top global semiconductor companies, providing long-term capacity reservations to meet growing customer demand for silicon carbide power semiconductors. High Voltage High-voltage wide bandgap silicon carbide (SiC) technology is revolutionizing power electronics used in electric vehicles, industrial and grid-tied power supplies, motor drives and renewable energy applications. By significantly reducing power loss in designs for electric vehicles, industrial power …

Silicon Carbide – The Technology That Will Power Our Future もっと読む »

Hot surface ignitors are replacing spark ignition in modern furnaces. Constructed of silicon carbide or silicon nitride with ceramic bases to encase wire connections, 120-volt hot surface ignitors create red-hot glow before arcing over to light the gas in combustion cycles. Engineers who designed these units had some important decisions regarding where the ignitor should be positioned relative to the end of their burners. Ignitor Type Hot surface ignitors are used to ignite combustion gasses in various household and industrial appliances such as furnaces, kitchen ranges and clothing dryers. Made of ceramic material that heats when voltage is applied across its proximal ends, in order to ensure safe operation of …

A Hot Surface Igniter Is Made From Silicon Carbide もっと読む »

Silicon carbide armor is commonly used to defend military and law enforcement personnel against bullets or other high-velocity projectiles, providing crucial protection. It absorbs and dissipates impact energy to help prevent injuries or deaths during high velocity impacts. Material used in this defense solution is proven effective against armor-piercing rounds and high velocity fragments, and provides a lightweight yet resilient option that doesn’t degrade over time. NIJ Certification The National Institute of Justice certification process is an extensive testing protocol designed to measure the ballistic capabilities of body armor. Tests involve firing various projectiles at different velocities at it in order to assess whether it can stop them and protect …

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Silicon carbide electrical conductivity is an indispensable quality in modern high-tech applications, helping drive performance and reliability without degrading function or safety. Thanks to its chemical resistance properties, silicon carbide can operate under extreme conditions without degradation that compromises function or safety. Doping can alter the electrical conductivity of SiC by adding impurities known as dopants to its surface, producing free charge carriers (electrons or holes) which increase its electrical properties. Thermal Conductivity Silicon carbide is an exceptionally hard, durable non-oxide ceramic material with many desirable characteristics, including superior mechanical, chemical, and thermal conductivities, making it suitable for high performance applications. Furthermore, its ability to conduct electricity sets it apart …

Silicon Carbide Electrical Conductivity もっと読む »

Silicon carbide X4 features high hardness and rigidity, making it suitable for use as a grit in sandpaper or sharpening knives, while being easier to work with than steels that contain Vanadium such as S90V. Conventional computer chips are manufactured by using cooling techniques to solidify pure silicon molten. Unfortunately, this process can sometimes result in flaws requiring fans or gadgets to further cool the chip down. Hardness Silicon carbide is one of the hardest materials used in industrial abrasives. Due to its exceptional hardness, silicon carbide can easily cut through hard metals, glass, and stones with ease, and has almost reached diamond hardness on Mohs scale. As such, silicon …

X4 Silicon Carbide もっと読む »

Silicon carbide MOSFETs (also referred to as SiC MOSFETs) provide significant performance advantages over their silicon counterparts, including faster switching speeds for power conversion circuits; improved reliability by eliminating voltage spikes; lower power losses in components like inductors, capacitors & filters; and smaller designs. SiC is known for its wide bandgap, making it suitable for high temperature applications such as traction inverters and motor drives. But what other benefits can this electronic component bring to the table? High Breakdown Voltage SiC MOSFETs feature high breakdown voltages that enable them to withstand higher operating temperatures, making them especially suitable for applications involving elevated currents and voltages, such as switch mode power …

Silicon Carbide MOSFETs もっと読む »

Fuji provides an impressive array of silicon carbide (SiC) guides. These rings are extremely hard and smooth, helping reduce friction that could otherwise damage rod guides. Ceramic inserts also stand up well against the abrasiveness of modern braided lines, while remaining cost-effective enough for use on high-end brand name spinning or casting rods. However, due to their costlier nature they are most often only found on high-end brand name spinning or casting rods. KW Double-Foot Guides Fuji’s K-Series guides feature an innovative patented tangle free design, making these guides perfect for use with mono or braid line. Their sloped frame and ring help prevent line wraps, and these guides come …

Fuji Silicon Carbide Rod Guides もっと読む »

炭化ケイ素は100年以上前から優れた研磨材として使用されており、耐食性と高温耐性を誇っている。純粋な単結晶SiCの室温での平均熱伝導率は490 W m-1 K-1であるが、多結晶の3C-SiCは焼結添加物や格子欠陥のために熱伝導率が著しく低く、熱伝導率は一桁低下する。化学気相成長法（CVD） 化学気相成長法（CVD）は、超大規模集積（VLSI）シリコン回路やマイクロエレクトロニクスデバイス全般の製造に関わる重要なプロセスのひとつである。CVDでは、希薄な不活性ガスを通して反応剤蒸気を基板に向けて通過させることで、化学反応を誘起し、...

炭化ケイ素の熱伝導率 もっと読む »

炭化ケイ素は、研削砥石や研磨材によく使用される非常に硬く耐久性のある材料です。モース硬度は、ダイヤモンドと立方晶窒化ホウ素だけが上回る9です！炭化ケイ素の優れた硬度特性は、研削砥石や研磨材に使用される場合、他の選択肢を凌駕します。エドワード・グッドリッチ・アチソンは、大量生産のパイオニアとして知られています。彼は合成ダイヤモンドを作ろうとして、珪砂に粉状のコークス（炭素）を混ぜて誤って加熱し、カーボランダムと呼ばれる青い結晶を作り出した。炭化ケイ素（SiC）の製造 炭化ケイ素（SiC）は工業用鉱物の結晶材料である。半導体特性と優れた研磨特性を持つ、硬いセラミックと金属のハイブリッドである。

炭化ケイ素はどのようにして作られるのか？ もっと読む »