Erik Cleage Leaves Altera

San Jose, Calif., February 11, 2005—Altera Corporation (NASDAQ: ALTR) today announced that Erik Cleage, the company’s senior vice president of marketing, is leaving the company after 19 years of service in various sales and marketing roles.

“I would like to thank Erik for his contributions and wish him success in his future endeavors,” said John Daane, Altera’s president and CEO.

“My experiences at Altera over the past two decades have been exciting, rewarding and fun,” said Cleage. “I am proud of what we were able to accomplish in establishing Altera as a premier technology company.”

About Altera

Altera Corporation (NASDAQ: ALTR) is the world’s pioneer in system-on-a-programmable-chip (SOPC) solutions. Combining programmable logic technology with software tools, intellectual property, and technical services, Altera provides high-value programmable solutions to approximately 14,000 customers worldwide. More information is available at www.altera.com.

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