Manufacturing Bits: June 7


High-voltage superjunction SiC devices The University of Warwick and Cambridge Microelectronics have presented a paper on the latest effort to develop of a new type silicon carbide (SiC) power device called a SiC superjunction Schottky diode. Researchers have simulated and optimized the development of 4H-SiC superjunction Schottky diodes at a voltage class of 1700 volts, aiming for breakdow... » read more

The Ins And Outs Of Silicon Carbide


John Palmour, CTO at Cree, sat down with Semiconductor Engineering to talk about silicon carbide, how it compares to silicon, what's different from a design and packaging standpoint, and where it's being used. What follows are excerpts of that conversation. SE: SiC is well-understood in power electronics and RF, but is the main advantage the ability to run devices hotter than silicon, or is ... » read more

SiC Foundry Business Emerges


Several third-party foundry vendors are entering or expanding their efforts in the silicon carbide (SiC) business amid booming demand for the technology. However, making a significant dent in the market will not be so easy for SiC foundry vendors and their customers. They are facing stiff competition from traditional SiC device vendors such as Cree, Infineon, Rohm and STMicroelectronics. ... » read more

Silicon Carbide’s Superpowers


As we enter a new computing era driven by the Internet of Things (IoT), Big Data and Artificial Intelligence (AI), demand is growing for more energy-efficient chips. In this context, we usually think about Moore’s Law and reducing the size of transistors. However, advances in power semiconductors are not governed by node size reduction. Silicon power switches, such as MOSFETs and IGBTs, ar... » read more

Electric Cars Gain Traction, But Challenges Remain


Battery-powered electric vehicles are expected to reach a milestone in terms of shipments in 2019, but the technology faces several significant hurdles to gain wider adoption in the market. Limited driving range, high costs, battery issues, and a spotty charging infrastructure are the main challenges for battery electric vehicles (BEVs). In addition, there are issues with various power semic... » read more

SiC Chip Demand Surges


The silicon carbide (SiC) power semiconductor market is experiencing a sudden surge in demand amid growth for electric vehicles and other systems. But the demand also is causing a tight supply of SiC-based devices in the market, prompting some vendors to add fab capacity in the midst of a tricky wafer-size transition. Some SiC device makers are transitioning from 4- to 6-inch wafers in the f... » read more

Moving To Wide Bandgap Chips


The search for new materials to replace CMOS has been in full swing for decades, but in spite of successes in limited niche markets, bulk CMOS remains king. That’s beginning to change, however, as CMOS runs out of steam at advanced process nodes and as the priorities of chipmakers change from pure performance to energy efficiency. And for such applications as automotive electronics for hyb... » read more

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