Comparison ledger
Lapmaster 12 Lapper, PR Hoffman 1500 66 T Double Sided Optical, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 12 LapperLapmaster | 1500 66 T Double Sided OpticalPR Hoffman |
|---|---|---|
| OEM | Lapmaster | PR Hoffman |
| Category | CMP | CMP |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | — | PR Hoffman 1500 66 T Double Sided Optical |
| Specifications | ||
| Outside plate diameter | 12 inches[1] | — |
| Lapping Speed Range | 0 to 60 rpm[2] | — |
| Wafer Size Compatibility | 4 inches or smaller[1] | — |
| Input Voltage | 110 V[1] | — |
| Frequency | 60 Hz[1] | — |
| Phase | 1[1] | — |
| Number of Rings | 3[1] | — |
| Number of Weights | 3[1] | — |
| Includes Slurry System | Yes[1] | — |
| Includes Timer | Yes[1] | — |
| Configuration | — | Capacities:[3] |
| Plate | — | 15"[3] |
| Carriers | — | 5.3"[3] |
| Teeth | — | 66[3] |
| Downward force | — | 15 - 200 Lbs.[3] |
| Top plate | — | 1 - 135 RPM[3] |
| Ring gear | — | 1 - 135 RPM[3] |
| Sun gear | — | 1 - 103 RPM[3] |
| Type | — | double sided optical polisher[3] |
| Top plate speed | — | 1 - 135 RPM[3] |
| Ring gear speed | — | 1 - 135 RPM[3] |
| Sun gear speed | — | 1 - 103 RPM[3] |
| Vintage | — | 2000[3] |