Optical inspection machine Candela® 6300 series

surfacehard disk drive (HDD)for the electronics industry

The Candela 6300 series optical surface analyzer systems deliver advanced metrology and inspection capabilities for metal or glass data storage substrates and finished media. As data storage manufacturers strive to enhance device storage capacities by reducing head fly-heights even further, controlling disk surface roughness becomes increasingly important. The 6300 series of optical surface analyzers leverage the industry’s widest spatial bandwidth coverage (0.22 - 2000µm) and sub-Å noise floor to satisfy requirements for comprehensive roughness and microwaviness measurements. The Candela 6300 series of optical surface analyzers harnesses patented multi-channel optics, combined with unique laser stability management technology, to deliver powerful optical surface metrology capabilities for edge roll-off, texture/polish uniformity, HDI characterization, and scratch and particle inspection. The inspection and metrology system’s leading-edge optical scanning technology enables full surface disk topography metrology in both radial and circumferential directions and allows manufacturers to use a single tool to measure the entire spatial spectrum. Increased laser power, a lower noise floor and new optics design eliminate the need for sputtering glass substrates for defect detection, allowing for identification of roughness variations of < 0.1Å. Comparing 6300 optical surface analyzers with other systems such as scatterometers or laser Doppler vibrometry systems, the 6300 series is the best solution for radial and circumferential data, and fast, full-surface topography information on ultra-smooth substrate and media.