Patent ID: 9443739
Filing Date: 2016-09-13
CPC Classification: C09G,C09K,C23F,H01L

Claim Text:
1. A process for manufacturing a semiconductor device comprising chemically and mechanically polishing at least one of an elemental germanium and Si 1-x Ge x material, wherein 0.1≦x<1, in the presence of a chemical mechanical polishing (CMP) composition comprising: (A) at most 10 wt. % of inorganic particles, organic particles, or a mixture or composite thereof; (B) an oxidizing agent; (C) an organic compound which comprises at least {k} moieties (Z), hut excluding salts whose anions are inorganic and whose only organic cation is [NR wherein {k} is 1, 2 or 3, (Z) is a hydroxyl (—OH), alkoxy (OR R R R R R (D) an aqueous medium, wherein a pH value of the CMP composition is from 2.5 to 5.5.