Patent ID: 6652363
Filing Date: 2003-11-25
Classification: B24B,B24D,H01L,Y10S

Abstract:
A method for removing material from a surface of a microelectronic substrate, comprising:selecting a polishing pad to include a polyurethane material having a generally non-porous planarizing surface, a modulus of elasticity of approximately 1.0Ã—109 pascals, and a Shore D hardness of approximately 60; selecting a planarizing liquid to include a colloid having generally spherically shaped silicon dioxide colloidal particles having a surface roughness with a mean height of between 0.01% and 10% of the particles mean diameter; disposing the planarizing liquid and colloidal particles on a planarizing surface of the polishing pad; engaging the surface of the microelectronic substrate with the planarizing liquid and the planarizing surface of the polishing pad; and moving at least one of the microelectronic substrate and the polishing pad relative to the other of the microelectronic substrate and the polishing pad to remove material from the surface of the microelectronic substrate.