SURFACE POLISHING CONTROL UNIT FOR

Brand Owner (click to sort) Address Description
ELO-POLISH COLT INDUSTRIES OPERATING CORP. New York NY Surface Polishing Control Unit for Use as an Accessory with Electrical Discharge Machines;
HI-POL COLT INDUSTRIES OPERATING CORP. New York NY SURFACE POLISHING CONTROL UNIT FOR USE AS AN ACCESSORY WITH ELECTRICAL DISCHARGE MACHINES;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The present invention relates to a polishing apparatus for polishing a workpiece, such as a semiconductor wafer, to a flat mirror finish. The polishing apparatus comprises a polishing table having a polishing surface, and a top ring, and the workpiece is interposed between the polishing table and the top ring and pressed at a predetermined pressure to polish the workpiece. The polishing apparatus comprises at least two dressing units for dressing the polishing surface by being brought into contact with the polishing surface, which is a surface of a polishing cloth.