# Silicon processing - Stage 2 (technology)

internal name `silicon-mk02` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md))
HTML page: https://factorio.kalzumeus.com/tech/silicon-mk02/

## Cost

1200 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each.

## Requires (2)

- [Diamond mining](https://factorio.kalzumeus.com/tech/diamond-mining.md)
- [Energy generation](https://factorio.kalzumeus.com/tech/energy-2.md)

## Leads to (2)

- [Intermetallics - Stage 3](https://factorio.kalzumeus.com/tech/intermetallics-mk03.md)
- [Photovoltaic - Stage 1](https://factorio.kalzumeus.com/tech/solar-mk01.md)

## Unlocks (3 recipes)

### Polycrystalline silicon plate (`polycrystalline-plate`)

- 5 s · tier 5 · productivity modules allowed
- Ingredients: 1 × [Polycrystalline slab](https://factorio.kalzumeus.com/item/polycrystalline-slab.md), 30 × [Wax](https://factorio.kalzumeus.com/fluid/wax.md), 1 × [Diamond Wire](https://factorio.kalzumeus.com/item/diamond-wire.md)
- Results: 5 × [Polycrystalline silicon plate](https://factorio.kalzumeus.com/item/polycrystalline-plate.md)
- Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04
- Unlocked by: [Silicon processing - Stage 2](https://factorio.kalzumeus.com/tech/silicon-mk02.md)

### Polycrystalline slab (`polycrystalline-slab`)

- 15 s · tier 5
- Ingredients: 3 × [Electronic Grade Silicon](https://factorio.kalzumeus.com/item/eg-si.md), 3 × [Graphite](https://factorio.kalzumeus.com/item/graphite.md), 1 × [Crucible](https://factorio.kalzumeus.com/item/crucible.md)
- Results: 1 × [Polycrystalline slab](https://factorio.kalzumeus.com/item/polycrystalline-slab.md)
- Made in: Electric arc furnace MK 01, Electric arc furnace MK 02, Electric arc furnace MK 03, Electric arc furnace MK 04
- Unlocked by: [Silicon processing - Stage 2](https://factorio.kalzumeus.com/tech/silicon-mk02.md)

### Silicon wafer (`silicon-wafer-2`)

- 5 s · tier 5 · productivity modules allowed
- Ingredients: 1 × [Polycrystalline silicon plate](https://factorio.kalzumeus.com/item/polycrystalline-plate.md), 1 × [Aramid fiber](https://factorio.kalzumeus.com/item/aramid.md)
- Results: 3 × [Silicon wafer](https://factorio.kalzumeus.com/item/silicon-wafer.md)
- Made in: Electronics factory MK 01, Electronics factory MK 02, Electronics factory MK 03, Electronics factory MK 04
- Unlocked by: [Silicon processing - Stage 2](https://factorio.kalzumeus.com/tech/silicon-mk02.md)