Patent ID: 6296557
Filing Date: 2001-10-02
Classification: B24B,B24D

Abstract:
A polishing pad for planarization of a microelectronic-device substrate assembly, comprising a body having a planarizing surface configured to engage the substrate assembly, a backside surface configured to engage a support surface on a planarizing machine, and an interlocking element on the backside surface, the interlocking element being configured to engage a corresponding retaining member on the support surface and where the interlocking element on the backside surface of the polishing pad comprises at least one groove extending in a direction parallel to a travel path of the pad, and the retaining member comprises at least one tongue extending in the direction of the travel path, the groove being configured to mate with the tongue to allow relative movement between the polishing pad and the support surface in a direction along the travel path and at least substantially inhibit relative movement between the polishing pad and the support surface transverse to the travel path.