Comparison ledger
Disco 840, Lapmaster 15, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 840Disco | 15Lapmaster |
|---|---|---|
| OEM | Disco | Lapmaster |
| Category | Dicing & Grinding | Dicing & Grinding |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Disco 840 | Lapmaster 15 |
| Cited variants |
| — |
| Specifications | ||
| Wafer size range | 4–8 inch[1] | — |
| Spindle speed | 1000–7000 rpm[1] | — |
| Vertical stroke | 110 mm[1] | — |
| Planarity accuracy within wafer | 0.0015 mm[1] | — |
| Chuck table type | Porous vacuum chuck[1] | — |
| Grinding wheel diameter | 8 inch[1] | — |
| Number of cassettes | 2[1] | — |
| Number of spindles | 2 (independently adjustable)[1] | — |
| Dimensions (W × D × H) | 1050 × 2150 × 1710 mm[1] | — |
| Electrical supply | 200 V, 3 phase, 50/60 Hz[1] | — |
| CDA supply | 0.5–0.8 MPa[1] | — |
| DI water supply | 0.2–0.3 MPa, 15 l/min or higher[1] | — |
| Oil mist filtration system (optional) | Pure Boyd PBH 100[2] | — |
| Input Power | — | 110 Vac[3] |
| Plate Diameter | — | 15 inches (381 mm)[4] |
| Number of Conditioning Rings | — | 3[4] |
| Ring ID | — | 5.5 inches (140 mm)[4] |
| Standard RPM | — | 60[4] |
| RPM Range (Variable Speed Drive) | — | 0-60[4] |
| Drive Motor - Lapper | — | 0.5 HP (0.37 kW)[4] |
| Drive Motor - Polisher | — | 0.75 HP (0.56 kW)[4] |
| Length | — | 25 inches (635 mm)[4] |
| Width | — | 20 inches (508 mm)[4] |
| Height | — | 24 inches (610 mm)[4] |
| Estimated Shipping Weight | — | 285 lbs (129.3 kg)[4] |
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