ADEX Ade

ADE Corporation (Nasdaq: ADEX) announces that the Company has been added to the newly established Russell Microcap(TM) Index. The Russell Microcap Index is comprised of the smallest 1,000 securities in the Russell 2000(R) Index plus the next 1,000 largest companies based on total market capitalization. ADE Corporation continues to be included in the Russell 2000 and Russell 3000(R) indexes. Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. More than $2.5 trillion in assets currently are benchmarked to them. Investment managers who oversee these funds purchase shares of member stocks according to that company's weighting in the particular index. About ADE Corporation ADE Corporation is a leading supplier of metrology and inspection systems required for production in the silicon wafer, semiconductor device, magnetic data storage and optics manufacturing industries. The Company's systems analyze and report product quality at critical manufacturing process steps for yield enhancement, providing quality certification data that is relied upon by semiconductor wafer, device and computer disk manufacturers. The Company's systems also are used for production measurements in the semiconductor chip fabrication process. To learn more about ADE, visit the Company's Web site at http://www.ade.com.