Ex parte XIE et al. - Page 9




          Appeal No. 1998-1746                                                        
          Application No. 08/427,462                                                  


          of polishing solutions or other techniques which tend to leave              
          imbedded particles behind in or on the treated surface.  At                 
          least, use of such techniques is discouraged when preparing a               
          surface for cone formation.                                                 






























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