Vishay Intertechnology has announced two thin film chip inductors in compact 0402 and 0603 case sizes that provide high Q values up to 49 at specified frequencies from 100 MHz to 1700 MHz. The Vishay Dale IFCB-0402 and IFCB-0603 are designed to provide stable inductance during high-frequency operation in communications devices such as cell phones, pagers, GPS devices, and wireless LANs, as well as for VCO, TCXO circuit, and RF transceiver modules. The IFCB-0402 provides inductance values ranging from 1.0 nH to 22 nH, while the IFCB-0603 is available in a range of values between 1.0 nH and 68 nH. Both inductors feature inductance tolerance of 0.3 nH from 1.0 nH to 8.2 nH, with 2% and 5% tolerances available. With dimensions of 1 x 0.5 mm and 1.6 x 0.8 mm and height profiles of 0.32 mm0.45 mm, respectively, the lightweight IFCB-0402 and IFCB-0603 allow for design of smaller end products for communications markets. They feature a lead (Pb)-free and RoHS-compliant construction and are compatible with reflow or flow soldering. Vishay Semiconductor GmbH , 74072 Heilbronn, Germany. www.vishay.com.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.