Patent ID: 7196010
Filing Date: 2007-03-27
Classification: B24B,C09G,H01L

Abstract:
1. In a method of manufacturing a semiconductor device that includes a step of planarizing a wafer surface containing heterogeneous substances using a CMP process with a slurry composition, the improvement comprising the sequential steps of: a forming a first material layer pattern on a first surface portion of a semiconductor lower layer, said lower layer comprising adjacent first and second surface portions, said first material layer consisting of a first material which exhibits the property of hydrophobicity with respect to the slurry composition along a surface of said first material; (b) forming a second material layer pattern on said surface of said first material and also on said second surface portion of said semiconductor lower layers, said second material layer consisting of a second material that is different from the first material and which exhibits the property of hydrophilicity with respect to the slurry composition along a surface of said second material; and, (c) planarizing the surface of the resultant structure to expose adjacent planarized surfaces of the first and second materials by a chemical mechanical polishing (CMP) process using a slurry composition consisting essentially of water, abrasive grains-selected from the group consisting of silica (SiO