Invention Grant
US07261621B2 Pad conditioner for chemical mechanical polishing apparatus 有权
化学机械抛光装置垫垫调节剂

Pad conditioner for chemical mechanical polishing apparatus
Abstract:
A pad conditioner may include a surface having a first region including a portion having relatively irregular shaped and friable polishing particles, and a second region including a portion having relatively regular shaped and tough polishing particles. The relatively regular shaped and tough polishing particles may be provided on the edge portion of the surface and the relatively irregular shaped and friable polishing particles may be provided on the center portion of the surface.
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