IXYS Corporation's New Generation of Power Schottky Diodes Improves Efficiency and Power Density

Business Wire, March 16, 2006

SANTA CLARA, Calif. -- IXYS Corporation (NASDAQ:SYXI) has introduced a new generation of silicon Schottky rectifiers for a broad range of off-line and DC-DC power conversion applications in telecom, computer, game consoles and flat panel TVs . A wide range of breakdown voltages, from 8V to 200V, are offered with best-in-class VF and improved switching efficiencies.

The new generation power Schottky rectifiers have been developed with IXYS' proprietary process and material science technology to tailor the specifications for a wide variety of applications.

"We call it 'Application-Optimized' designs that enable our customers to use the most suitable diode for their circuits. The technology is an extension of our present power Schottky devices with its proven reliability and wide power range," commented Dan Schwob, IXYS Senior VP of Marketing. "These new products have improved ruggedness with avalanche ratings that cannot be met by any other Schottky technology and, given our expertise in material science, resulted also in improved thermal design enabling higher levels of integration, higher power density and improved efficiency. We have proven again that silicon based Schottkys have a higher performance to cost ratio than SiC based Schottkys for high power applications."

IXYS offers in this new generation, 11 voltage classes from 8V up to 200V, with three design variants to optimize low voltage application, from OR'ing to higher voltage Switch Mode Power Supplies (SMPS). Design 'D', suited for breakdown voltages (Vrrm) below 15V, offers an extremely low forward voltage drop (VF) that is the best in its class. The 'B' type, with a Vrrm of 15V and up and very low VF combined with an improved reverse current, allows for reduced conduction and switching losses. In the 45V to 80V the customer can select a 'B' or an 'A' type. The 'A' version shows extremely low leakage currents and is optimal for high temperature applications such as those found in automotive designs and flat panel displays. The 'A' Schottkys are suitable for higher voltage applications in power systems for telecommunications and some flat panel Plasma and LCD displays.

The Schottky products are available in several standard packages, surface mount and leaded, and also including our industry recognized ISOPLUS(TM) thermally efficient and isolated packages.

For more Information visit our website at www.ixys.com.

Any statements contained in this press release that are not statements of historical fact, including the performance, rating, benefits, reliability, property, availability and suitability of products for various applications, may be deemed to be forward-looking statements. There are a number of important factors that could cause the results of IXYS to differ materially from those indicated by these forward-looking statements, including, among others, risks detailed from time to time in the Company's SEC reports, including its Report on Form 10-Q for the period ended December 31, 2005 and our other filings with the SEC. The Company undertakes no obligation to publicly release the results of any revisions to these forward-looking statements.