Power Electronics ♦ news digest
Avago Technologies, a supplier of analogue interface components for communications, industrial and consumer applications, and RF solutions supplier TriQuint Semiconductors have agreed to settle all claims between the companies concerning intellectual property for bulk acoustic wave (BAW) filters. The two parties have entered into patent cross licenses and have agreed to dismiss all related litigation. The specific terms of the settlement and the resulting licensing agreement are confidential. “We are pleased to have reached an amicable resolution with TriQuint,” says Hock Tan, President and CEO of Avago Technologies Limited. “We are happy to have successfully put this litigation behind us,” adds Ralph Quinsey, CEO of TriQuint Semiconductor, Inc.
SemiSouth brings on 650V 55mΩ SiC JFETs
The fast switching, high current handling and superior thermal properties of silicon carbide devices are ideal for solar inverters, SMPS, PFC circuits, induction heating, UPS and motor drives
SemiSouth says it is delivering the industry’s first 650 V SiC JFET power transistors.
The fast switching speeds, large current handling capability combined with the superior thermal properties of SiC are ideal for power electronic applications. These devices employ vertical trench JFET structures .
reliable, cost-effective, & capable of high-efficiency at high power densities. We are proud to be the first company to be able to offer such a product our customers will be able to realise enormous benefits by designing in these class-leading 650 V JFETs.”
Dieter Liesabeths, Senior VP Sales & Marketing adds, “This product is significant. Markets where we are already in volume production using our 1200 V switch such as solar and UPS, also require lower- voltage switching at 650 V for efficiency & higher power density solutions where grid voltage or bus voltages are lower. The automotive industry is split on the EV drive train with some customers requiring 1200 V and higher, and others requiring only 650 V. We can now serve these markets even better with power transistor solutions from 650 V through 1700 V.”
The 650V / 55mΩ SJDA065R055 SiC JFETs feature a temperature coefficient for ease of paralleling and fast switching with no “tail” current at 1500C. RDSONtypical for these new voltage-controlled devices is 0.044Ω, which exhibit a low gate charge and low intrinsic capacitance.
Global semiconductor sales escalate
A new report says silicon manufacturer Broadcom and compound semiconductor supplier TriQuint are good examples that illustrate that the semiconductor industry is bouncing back
The semiconductor stock market has not done too badly this year, thanks to the growing demand for tablets and smartphones.
The mobile market relies on both silicon and compound semiconductor devices although silicon dominates in many of these areas.
According to
ParagonReport.com, the Semiconductor Industry Association (SIA) recently reported worldwide semiconductor sales showed growth across all regions.
Jeffrey B. Casady, President/CTO of SemiSouth says, “Customers in markets such as EV drive train, UPS, welding, solar, induction heating have long been asking for SiC switches which are very
The organisation reported that for March 2012, worldwide sales of semiconductors totalled $23.3 billion, a 1.5 percent increase over the previous month. Sales in Europe and Japan grew 3.8 percent
June 2012
www.compoundsemiconductor.net 93
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