August 22, 2003 – Sipex Corp., Milpitas, CA, has signed a deal with PolarFab, a Bloomington, MN, foundry, to produce its high-end power management and interface products, as well as wafers for Silex’s photo detector DVD products. PolarFab also will add extra capacity to meet terms of the deal, and will extend preferential wafer pricing, delivery and engineering support to Sipex.