Maximum wafer-machining diameter of wafer | Ø64” or Ø8” |
Grinding Spindle: Bearing type Motor Rapid feed speed Grind feed speed | Air bearing, maximum 3600 rpm 2.2 kw, 4P, high frequency motor 200 mm/min 1 to 999 µm/min |
Grinding wheel size | Ø250 mm |
Index Table: Number of work spindles Work spindle Bearing type Speed of Work Spindles | 3 Mechanical Bearing, or Air Bearing (optional) 1 to 600 rpm |
Automatic Sizing Device: Wafer thickness measuring system Wafer minimum setting size Wafer size display range | 2 point contact in-process gauge 1 µm 0to 1.2 mm; extended range software available |
Table Cleaning Device (Grinder side) | Water + Ceramic block |
Wafer Cleaning Unit (Grinder side) | Water + brush, and spin/rinse dry station |
Number of Cassettes | 2 stations for each unit (Grinder & Polish unit) |
Polish head Oscillation speed Head Load Pad size | 3 Kw AC servo motor for 10 – 460 rpm 100 – 8,000 mm/min. 50 – 999 g//cm2 200mm O.D. |
Polish table speed Vacuum Chuck material | 3 Kw AC servo motor for 50 – 200rpm Alumina ceramics (dedicate size of wafer) |
Chuck cleaning | Brush + Water |
Wafer cleaning | N.C.W + DI water for Polish surface & Air blow spin dry |