Comparison ledger
Heller 788, Varian 0332 F 9453 302 Diffusion, side by side. Every value shown is drawn from the cited encyclopedia entries.
| Attribute | 788Heller | |
|---|---|---|
| OEM | Heller | Varian |
| Category | Thermal / Diffusion | Thermal / Diffusion |
| Wafer size | — | — |
| Process node | — | — |
| Introduced | — | — |
| Production run | — | — |
| Lifecycle | — | — |
| Lifecycle milestones | — | — |
| Control system | — | — |
| Generation | — | — |
| Family | Heller 788 | Varian 0332 F 9453 302 Diffusion |
| Specifications | ||
| oven type | in-line, continuous cure, vertical format oven[1] | — |
| thermal zones | four internal thermal zones[1] | — |
| controls | independent time and temperature controls[1] | — |
| cycle time | as short as 25 seconds[1] | — |
| curing time | from a few minutes to several hours[1] | — |
| footprint | as small as 72 inches (183 cm)[1] | — |
| product width range | 2 to 18 inches (5 to 46 cm)[1] | — |
| product thickness range | as thin as 0.015 inch (0.4 mm)[1] | — |
| atmosphere | air or nitrogen[1] | — |
| clean room compatibility | Class 1,000 or 10,000 clean room compatibility[1] | — |
| board support | center board support for ultra-thin boards[1] | — |
| conveyor width adjustability | adjustable from 2 to 18 inches (5 to 46 cm)[1] | — |
| pitch between product carriers | 3/8 to 1 1/2 inches (9.5 to 38 mm) in 3/8-inch (9.5 mm) increments[1] | — |
| heating | forced convection heating[1] | — |
| interface | magazine loader interface[1] | — |
| software | Windows software[1] | — |
| standards | SMEMA compatibility; meets CE standards[1] | — |
| Cycle time (minimum) | 25 seconds[1] | — |
| Curing time (maximum) | 4 hours[1] | — |
| Footprint (minimum) | 72 inches (183 cm)[1] | — |
| Height options | 7, 8, 9, 10 feet (213, 244, 274, 305 cm)[1] | — |
| Number of thermal zones | 4[1] | — |
| Clean room compatibility | Class 1,000 or 10,000[1] | — |
| Conveyor width range | 2 to 18 inches (5-46 cm)[1] | — |
| Minimum product thickness | 0.015 inch (0.4 mm)[1] | — |
| Asset Number | — | 142841[2] |
| Last Confirm Date | — | October 14, 2025[3] |
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