2005 News Releases

"FOR IMMEDIATE RELEASE"

Major Taiwanese Semiconductor Manufacturer Licenses MOSAID Patent Portfolio

OTTAWA, Ontario, Canada – October 20, 2005 - MOSAID Technologies Incorporated (TSX:MSD) today announced that it has signed a five-year term, worldwide, non-exclusive, royalty bearing patent licensing agreement with a major Taiwanese semiconductor company. The terms of the Agreement also call for a series of fixed payments to cover product sales prior to the date of the agreement.

"We are very pleased and excited to add another one of the world's largest DRAM manufacturers to the list of companies that have licensed MOSAID's patent portfolio," said Jim Skippen, Senior Vice President of Patent Licensing and General Counsel for MOSAID Technologies. "This is our fifth limited term license agreement. The limited term license model is important because it yields a revenue stream during the entire term of the license while offering an opportunity for its renewal at the conclusion of the term."

"MOSAID is committed to ensuring the long term success of its patent licensing program," added Skippen. "In addition to our licensing model which has the potential for renewals at the expiration of a fixed term, we are also employing a number of strategies to enhance our current patent portfolio. These strategies include analysis of our existing portfolio for new licensing opportunities, particularly with respect to our networking patents; active registration of patents resulting from the various R&D activities underway at MOSAID; and the purchase of key technologies and patents to expand the breadth of our licensing program."

To date, MOSAID has signed patent licensing agreements with many leading DRAM and semiconductor manufacturers including Fujitsu, NEC, Toshiba, Hitachi, Mitsubishi Electric, Oki Electric, Matsushita, Winbond Electronics, Sony Corporation, Royal Philips Electronics, Samsung Electronics and Hynix Semiconductor.

MOSAID's ability to broaden its licensing opportunity is supported by its current portfolio of 566 patents issued and pending. There are currently a total of 13 semiconductor companies on notice for patent infringement and MOSAID is engaged in licensing discussions with several of these companies.

About MOSAID
MOSAID Technologies Incorporated makes memory better through the development and licensing of intellectual property and the supply of memory test and analysis systems to semiconductor manufacturers, foundries and fabless semiconductor companies around the world.

Founded in 1975, MOSAID is based in Ottawa, Ontario, Canada, with offices in Santa Clara, California; Newcastle upon Tyne, U.K; and Tokyo, Japan. For more information, visit the Company's web site at www.mosaid.com.

Forward Looking Information
This document may contain forward-looking statements relating to the Company’s operations or to the environment in which the Company operates. Such statements are based on current expectations that are subject to a variety of risks and uncertainties that are difficult to predict and/or beyond MOSAID’s control. Actual results may differ materially from those expressed in any forward-looking statements, due to factors such as customer demand and timing of purchasing decisions, product and business mix, competitive products, pricing pressures as well as general economic and industry conditions. MOSAID assumes no obligation to update these forward-looking statements, or to update the reasons why actual results could differ from those reflected in any forward-looking statements. Additional information identifying risks and uncertainties is contained in other public filings with the Ontario Securities Commission.

For more information, please contact:

Investor Inquiries Heidi Vincent Director, Investor Relations & Communications 613-599-9539 x1205 vincent@mosaid.com

Media Inquiries Sara Haskill Communications Specialist 613-599-9539 x1228 haskill@mosaid.com