Abstract:
A cover for an electronic device (100) and methods of forming a cover (112) is disclosed. The electronic device (100) may include a housing (102), and a cover (112) coupled to the housing (102). The cover (112) may have an inner surface (124) having at least one of an intermediate polish and a final polish, a groove (128) formed on the inner surface (124), and an outer surface (126) positioned opposite the inner surface (124). The outer surface (126) may have at least one of the intermediate polish and the final polish. The cover (112) may also have a rounded perimeter portion (134) formed between the inner surface (124) and the outer surface (126). The rounded perimeter portion (134) may be positioned adjacent the groove (128). The method for forming the cover (112) may include performing a first polishing process on the sapphire component using a polishing tool, and performing a second polishing process on the groove (128) of the sapphire component forming the cover (112) using blasting media (142).
Abstract:
A multi-station polish system and process for polishing thin, flat (planar) and rigid workpieces. Workpieces are conveyed through multiple polishing stations that include a bulk material removal belt polishing station and (100) finishing rotary polishing station (200). The bulk of the material is relatively quickly removed at the bulk removal station using a conformable abrasive belt (101) and the workpiece surface is then polished to the desired finish at the finishing station using a conformable annular rotary polishing pad (201).
Abstract:
A chemical mechanical polisher comprises a polishing platen capable of supporting a polishing pad, first and second substrate carriers that are each capable of holding a substrate against the polishing pad and first and second movable slurry dispansers. The movable slurry dispenser comprises (i) an arm comprising a pivoting end and a distal end, (ii) at least one slurry dispensing nozzle on the distal end, and (iii) a dispenser drive capable of rotating the arm about the pivoting end to swing the slurry dispensing nozzle at the distal end to dispense slurry across the polishing platen. In another version, the movable slurry dispenser comprises a hinged arm having a plurality of sections that are joined at one or more hinge joints, a pivoting end and a distal end, and at least one slurry dispensing nozzle located at or near the distal end.