Silicon Oxide Substrates and Wafers
Silicon substrates designed for use in organic electronics labs as FET substrates, and other applications including X-ray studies, surface microscopy analysis and elipsometry measurements. Sold on 200 mm wafer mounts, pre-oxidised and pre-diced to our standardised substrate size of 15 mm x 20 mm with no photoresist coating, these substrates fit in our substrate rack and makes batch cleaning and processing much faster and simpler.
| Product code | Oxide (nm) | Dicing | Resistivity (Ω cm) | Usage |
|---|---|---|---|---|
| S146 | 300 | Diced | <0.02 | OFETs with a robust electro-mechanical gate insulator (suitable for use with gold electrode evaporations) |
| S147 | 400 | Diced | <0.02 | X-ray measurements, microscopy and ellipsometry |
| S148 | 90 | Diced | <0.02 | Optical microscopy of 2D materials |
| Wafer diameter | 200 mm (8") |
|---|---|
| Oxide thickness tolerance | +/- 5% (both sides) |
| Oxide growth | Thermally grown (dry) on both sides |
| Wafer type / dopant | P / Boron |
| Wafer thickness | 725 +/- 25 µm |
| Wafer growth | Czochralski (CZ) |
| Orientation | <1 0 0> |
| Front surface | Polished |
| Back surface | Unpolished |
| Substrate size | 20 mm x 15 mm (0.79" x 0.59") |
|---|---|
| Substrates per wafer | Approx. 75 complete substrates (plus partial edge pieces) |
| Wafer protection | None |
As with all organic electronic devices, getting a clean substrate is essential for high performance. Our pre-diced substrates make batch cleaning easier by use of a substrate rack. These wafers can be cleaned with the following routine:
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