2005 News Releases

MOSAID TO HOLD CONFERENCE CALL
Following Announcement of Fourth Quarter
Results for Fiscal Year 2005

Thursday, June 23, 2005 - 5:00 p.m. ET

You are invited to participate in a teleconference with the senior management of MOSAID Technologies Incorporated to discuss fourth quarter and year-end results for the period ended April 30, 2005. The teleconference is scheduled to begin at 5:00 p.m. ET.

A news release detailing these results will be issued on Thursday, June 23, 2005, after the close of the markets.

To participate in this teleconference, please call 1-800-814-4859 five minutes prior to the start of the conference call. For your convenience, the teleconference will be recorded and available for seven business days at the following instant replay number: 1-877-289-8525 under reservation number 21126977#.

The conference call will be simultaneously webcast. Please visit www.mosaid.com. the day of the call for more details. The webcast slides and audio will be subsequently archived on the MOSAID web site in the event that you are unable to participate in the live call or rebroadcast.

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.

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