Patent ID: 6439970
Filing Date: 2002-08-27
Classification: B24B,B24D

Abstract:
A method of manufacturing a polishing pad for planarization of a microelectronic-device substrate assembly, comprising:fabricating a planarizing surface on a polishing pad; forming an interlocking element on a backside of the polishing pad, the interlocking element on a backside of the polishing pad being configured to engage a corresponding retaining member on a support surface; the interlocking element being selected from a first group consisting of an elongated tongue, an elongated groove, a depression, a protuberance, a first plurality of teeth, and a first plurality of pyramidal teeth; and the retaining member being selected from a corresponding second group consisting of an elongated groove, an elongated tongue, a protuberance, a depression, a second plurality of teeth, and a second plurality of pyramidal teeth, respectively; removing material from a substrate assembly by pressing the substrate assembly against a polishing pad and moving at least one of the polishing pad or the substrate assembly relative to the other; and inhibiting relative movement between the polishing pad and a support surface under the polishing pad in a direction transverse to a desired travel path of the polishing pad by engaging the interlocking element with the retaining member.