75634544
Feb 4, 1999
Aug 29, 2000
SERVICES FOR THE TREATMENT OF SEMICONDUCTOR MATERIALS SUBSTRATES AND SILICON WAFERS FOR THE MANUFACTURE OF INTEGRATED CIRCUITS, NAMELY, MODIFICATION OF MECHANICAL, PHYSICAL, CHEMICAL, ELECTRICAL PROPERTIES OF SEMICONDUCTOR MATERIALS SUBSTRATES AND SILICON WAFERS BY THERMAL TREATMENT, ION IMPLANTATION, CHEMICAL TREATMENT, CHEMICAL-MECHANICAL-POLISHING TREATMENT AND ALL TREATMENT USED IN THE SEMI CONDUCTOR INDUSTRY
Treatment of Materials