Patent ID: 9484212
Filing Date: 2016-11-01
CPC Classification: B24B,B24D,H01L

Claim Text:
1. A method of chemical mechanical polishing a substrate, comprising: providing the substrate, wherein the substrate comprises a silicon oxide and a silicon nitride; providing a polishing slurry, comprising: providing a chemical mechanical polishing pad, comprising: a polishing layer having a composition, a polishing surface and a removal rate selectivity between a silicon oxide material and a silicon nitride material, wherein the composition is a reaction product of ingredients, comprising: creating dynamic contact at an interface between the polishing surface and the substrate to polish a surface of the substrate; dispensing the polishing slurry onto the chemical mechanical polishing pad at or near the interface between the polishing surface and the substrate; and, removing at least some of the silicon oxide and the silicon nitride from the substrate.