Types of Ultra High Purity Colloidal Silica CMP Abrasives are differentiated primarily by particle size distribution and surface chemistry, each with distinct sub‑types that influence process performance. Size‑based sub‑types include sub‑100 nm particles, optimized for shallow‑depth removal and low surface roughness; 100‑200 nm particles, which balance removal rate and defect control; and >200 nm particles, favored in high‑throughput metal CMP where aggressive material removal is required. Surface‑functionalization sub‑types comprise unmodified silica, offering baseline chemical activity; amine‑functionalized silica, which enhances selectivity toward dielectric oxides; and phosphate‑functionalized silica, designed for improved metal‑oxide interaction. The selection of a specific type directly impacts slurry formulation costs, equipment wear, and final wafer quality, thereby shaping the market’s revenue composition. By mapping these sub‑types to their respective application segments, analysts can trace how product‑level innovation translates into incremental market share within the Ultra High Purity Colloidal Silica CMP Abrasives segmentation.