Patent ID: 6805615
Filing Date: 2004-10-19
Classification: B24B,H01L

Abstract:
A planarizing solution for planarizing microelectronic-device substrate assemblies, comprising:a liquid mixture; a plurality of first planarizing particles in the liquid mixture, the first planarizing particles being made from a first material selected from the group consisting of ceria, alumina, aluminum oxide, titania, and tantalum oxide and having a first planarizing attribute defined at least in part by a first particle size of 0.01-0.05 &mgr;m having a distribution with a first mode of 0.02 to 0.03 &mgr;m and a plurality of second planarizing particles in the liquid mixture with the first planarizing particles, the second planarizing particles having a second planarizing attribute different than the first planarizing attribute of the first planarizing particles, the second planarizing attribute being defined at least in part by a second particle size of 0.07-1.0 &mgr;m having a distribution with a second mode of 0.25 to 0.4 &mgr;m.