tag: SiC

SiC MOSFETs In The Landscape Of Modern Power Devices
By Peter Friedrichs - 08 Apr, 2021 - Comments: 0

Over the years, low losses possible by high breakdown field made silicon carbide (SiC) MOSFETs extremely popular amongst engineers. At present, they are mostly used in areas where IGBTs (Insulated Gate Bipolar Transistors) have been the prevailing component of choice before. But which role do SiC MOSFETs play in today’s landscape of power devices? With SiC MOSFETs (Metal-Oxide-Semicond... » read more

Controlling The Reliability Of Silicon Carbide-Based Devices
By Peter Friedrichs - 11 Mar, 2021 - Comments: 0

The development of wide bandgap silicon carbide (SiC) compound semiconductors has proved to be extremely beneficial for power conversion applications. Capable of switching at significantly higher frequencies, and with higher breakdown voltage characteristics, SiC power transistors are quickly becoming an attractive silicon alternative for high power density and/or high-efficiency power conver... » read more

Increasing The Conductive Density Of Packaging
By Shaun Bowers - 18 Feb, 2021 - Comments: 0

Wide bandgap (WBG) semiconductor technologies have created new challenges and opportunities for power packages. Developments such as silicon carbide (SiC) and gallium nitride (GaN), have a higher figure of merit (FOM) compared to silicon MOSFETs and have extended the efficiency, output power and/or switching frequency range and operating temperature range for power electronics. With lower lo... » read more

48V Applications Drive Power IC Package Options
By Bill Schweber - 21 Jan, 2021 - Comments: 1

The manufacturing process and die get most of the attention, but the packaging plays an important part in enabling and limiting performance, manufacturability, particularly when it comes to reliability of power devices. Given the wide range of underlying semiconductor power-device technologies — “basic” silicon, wide-bandgap silicon carbide (SiC) and gallium nitride (GaN), power levels... » read more

Mobility And 5G Drive Adoption Of New Materials For Power Devices
By Serena Brischetto - 21 Jan, 2021 - Comments: 0

Electric mobility, renewable energy, and other technology innovations like IoT, 5G, smart manufacturing, and robotics all require reliability, efficiency, and compact power systems, fueling the adoption of silicon carbide (SiC) and gallium nitride (GaN) to support lower voltages in significantly smaller devices. But chip designers must overcome the technological and economical challenges of int... » read more

Novel Etch Technologies Utilizing Atomic Layer Process For Advanced Patterning
By TEL - 17 Dec, 2020 - Comments: 0

We demonstrated a high selective and anisotropic plasma etch of Si3N4 and SiC. The demonstrated process consists of a sequence of ion modification and chemical dry removal steps. The Si3N4 etch with H ion modification showed a high selectivity to SiO2 and SiC films. In addition, we have developed selective etch of SiC with N ion modification. On the other hand, in the patterning etch processes,... » read more

Manufacturing Bits: Sept. 22
By Mark LaPedus - 22 Sep, 2020 - Comments: 0

Hairy nanoparticles The U.S. Air Force Research Laboratory is developing a new type of material called preceramic polymer-grafted nanoparticles or “hairy nanoparticles” (HNP). HNPs can be used to manufacture a new class of aircraft parts made of ceramic composite materials. An HNP is a hybrid material. It is based on a polymer shell, which is bound to a nanoparticle core, according to t... » read more

Week In Review: Manufacturing, Test
By Mark LaPedus - 28 Aug, 2020 - Comments: 0

Trade As reported, the U.S. recently implemented more restrictions on U.S. chip sales to Huawei. In response, SEMI has released the following statement in response to the new export control rule changes announced by the U.S. Commerce Department: “SEMI recognizes the role of export control measures to address threats to U.S. national security. However, we are very concerned the new export ... » read more

Power Amp Wars Begin For 5G
By Mark LaPedus - 24 Aug, 2020 - Comments: 2

Demand is increasing for power amplifier chips and other RF devices for 5G base stations, setting the stage for a showdown among different companies and technologies. The power amplifier device is a key component that boosts the RF power signals in base stations. It's based on two competitive technologies, silicon-based LDMOS or RF gallium nitride (GaN). GaN, a III-V technology, outperforms ... » read more

Improving Reliability For GaN And SiC
By Mark LaPedus - 18 Jun, 2020 - Comments: 2

Suppliers of gallium nitride (GaN) and silicon carbide (SiC) power devices are rolling out the next wave of products with some new and impressive specs. But before these devices are incorporated in systems, they must prove to be reliable. As with previous products, suppliers are quick to point out that the new devices are reliable, although there are some issues that can occasionally surface... » read more

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