Patent ID: 7083700

Claim:
A planarizing machine for planarizing microelectronic-device substrate assemblies, comprising: a support table; a polishing pad on the support table, the polishing pad having a body, a planarizing surface on the body, and a plurality of abrasive particles fixedly attached to the body at the planarizing surface; a carrier assembly having a carrier head configured to hold a substrate assembly and a drive mechanism attached to the carrier head to move the carrier relative to the polishing pad; and a supply of non-abrasive lubricating planarizing solution without abrasive particles in fluid communication with the polishing pad, the lubricating planarizing solution having a viscosity of at least approximately 4 cP to approximately 100 cP, wherein the non-abrasive lubricating planarizing solution further comprises homopolymers and copolymers of acrylic acid crosslinked with a polyalkenyl polyether.