Sapphire Polishing Machine: Precision Processing of Sapphire Substrates and Epitaxial Wafers
Sapphire boasts high hardness, high brittleness, prone edge chipping and easy deformation for ultra-thin blanks. Traditional planar polishing frequently triggers common defects including uneven stress distribution, unbalanced stock removal, workpiece warpage, edge breakage and insufficient localized polishing. Conventional polishing equipment cannot balance precision of single piece and batch-to-batch quality consistency, leading to unsatisfactory yield and processing stability for high-end mass production demands.
Tailored to the processing characteristics of hard-brittle sapphire, the
Sapphire Polishing Machine is configured with exclusive path-optimized motion control system and closed-loop flexible pressure precise regulation technology. It meets the requirements of micro, uniform and damage-free machining and realizes full-area controllable micro stock removal on workpieces. The machine fundamentally solves long-standing industry drawbacks of traditional crafts: over-polished edges, insufficient central polishing and irregular partial material removal. It precisely controls flatness, planeness and surface finish of individual sapphire parts, rigorously restricts dimensional tolerance divergence and uniform surface quality within the same batch, and greatly cuts reject rate and scrap rate of precision sapphire components.
Sapphire blanks after standardized ultra-precision polishing by this machine feature zero micro-scratches on surface, no subsurface crystal damage, outstanding cleanliness and superior flatness. The finished workpieces fully satisfy stringent standards of subsequent deep processing: thin-film deposition, ion coating, precision photolithography, vacuum bonding and precision laminating. Featuring excellent versatility, the
Sapphire Polishing Machine supports mass production of sapphire components in various sizes and specifications. With stable ultra-precision machining performance, it comprehensively improves quality and service life of high-end sapphire finished products, supplying core equipment and process technology for large-scale high-quality manufacturing of optoelectronic communication, precision optics, advanced microelectronics, intelligent sensing and other cutting-edge industries.