ON Semiconductor CFO to Present at Investor Conference

PHOENIX, Ariz. – Aug. 5, 2011 – ON Semiconductor Corporation (Nasdaq: ONNN) a premier supplier of high performance silicon solutions for energy efficient electronics, has announced that Donald Colvin, ON Semiconductor’s executive vice president and chief financial officer, will present at the following investor conference:

• 13th Annual Pacific Crest Global Technology Leadership Forum – Tuesday, August 9, at 2:00 p.m. (MT) at the Sonnenalp Resort in Vail, Colorado.

ON Semiconductor will provide a webcast of the conference presentation on the Investors section of its website at http://www.onsemi.com.