Patent ID: 6641471
Filing Date: 2003-11-04
Classification: B24B,B24D

Abstract:
A polishing pad, comprising:a layer having a polishing surface with a micro-texture; said micro-texture being characterized by: i. a land surface roughness, Ra, from about 0.01 &mgr;m to about 25 &mgr;m; ii. a peak to valley roughness, Rtm, from about 2 &mgr;m to about 40 &mgr;m; iii. a core roughness depth, Rk, from about 1 to about 10; iv. a reduced peak height, Rpk, from about 0.1 to about 5; v. a reduced valley height, Rvk, from about 0.1 to 10; and vi. a peak density, Rsa, from about 0.001 to about 2.0.