MOSAID Adds Mosel Vitelic to Patent Infringement Case Against Micron, Powerchip and ProMOS

OTTAWA, Ontario, Canada – November 30, 2006 - MOSAID Technologies Incorporated (TSX: MSD) today announced that it has filed a motion to amend its complaint for patent infringement against Micron Technology, Inc., Powerchip Semiconductor Corporation and ProMOS Technologies, by adding Taiwan-based Mosel Vitelic, Inc. as a defendant.

In the proposed amended complaint, filed in the Eastern District of Texas, Marshall Division, MOSAID alleges that Mosel Vitelic has infringed six of the patents already asserted against each of Micron, Powerchip and ProMOS. The six patents that MOSAID alleges Mosel Vitelic has infringed are U.S. Patent Nos. 5,751,643, 5,822,253, 5,828,620, 6,278,640, 6,236,581 and 5,406,523. These patents are being asserted against Dynamic Random Access Memory (DRAM) products.

About MOSAID
MOSAID Technologies Incorporated makes semiconductors better through the development and licensing of intellectual property and the supply of memory test and analysis systems. MOSAID counts many of the world's largest semiconductor companies among its customers. Founded in 1975, MOSAID is based in Ottawa, Ontario, with offices in Santa Clara, California, Newcastle upon Tyne, U.K, and Tokyo, Japan. For more information, visit www.mosaid.com.