September 15, 2003 – Semitool, Kalispell, MT, a supplier of wafer surface prep and deposition systems, says it will take a $15-$17 million charge in 4Q03 related to inventory writedowns. Sales of the company’s newer Raider and Sirius technologies contributed to the decision, according to company chairman and CEO Ray Thompson. Semitool is expected to release 4Q03 results on November 4.