Substrata offers a full suite of gold coated silicon wafers at affordable prices
All coatings are deposited under high vacuum using electron beam evaporation. Applications include nanotechnology, biotechnology and AFM applications.
We use a thin chromium adhesion layer between the silicon and gold coating. This adhesion layer is optional and can also be replaced with titanium upon request. All wafers are packed in a cleanroom environment and shipped in individual wafer carriers.
Technical Features
Substrate
Silicon Wafer (Prime Grade)
- Type/Dopant: P/Boron
- Orientation: <100>
- Resistivity: 1-50 Ω·cm
- Front Surface: Polished
- Back Surface: Etched
Coating
Gold, Au
- Purity: 99.999 %
- Deposition Technique: Electron Beam Evaporation
- Deposition Rate: 1-2 Å/s
- Process Pressure ≤ 2E-6 Torr
- Adhesion Layer: Cr (99.95 %)
High quality substrates coated with 500 Å (50 nm) of gold. All coatings include a 50 Å chromium adhesion layer between the substrate surface and the gold coating. All gold substrates are autoclavable.
Product # | Description | Coating | Thickness | Adhesion |
|---|---|---|---|---|
S00-00001-00 | Gold Coated Silicon Chips | 6/pk500 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (99.999 %) | 500 Å | 50 Å Cr |
QA05-00180 | Gold Coated Ø2 in Silicon Wafer500 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (99.999 %) | 500 Å | 50 Å Cr |
S01-00002-00 | Gold Coated Silicon Chips | 20/pk1000 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (99.999 %) | 1000 Å | 50 Å Cr |
S00-00002-00 | Gold Coated Silicon Chips | 20/pk500 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (99.999 %) | 500 Å | 50 Å Cr |
QA05-00190 | Gold Coated Ø4 in Silicon Wafer500 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (99.999 %) | 500 Å | 50 Å Cr |
QA05-00191 | Gold Coated Ø4 in Silicon Wafer1000 Å Au | Ø101.6 mm dia. x 0.525 mm thick | Gold (99.999 %) | 1000 Å | 50 Å Cr |
These items are fabricated upon order and may require up to 5 business days to ship. All items are sold in packs of 3 wafers.
Titanium (Ti) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
4WAU100-Q3 | Gold Coated Ø4 in Silicon Wafers100 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (99.999 %) | 100 Å | 20 Å Cr | 3/pkg |
4WAU500-Q3 | Gold Coated Ø4 in Silicon Wafers500 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (99.999 %) | 500 Å | 50 Å Cr | 3/pkg |
4WAU1000-Q3 | Gold Coated Ø4 in Silicon Wafers1000 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (99.999 %) | 1000 Å | 50 Å Cr | 3/pkg |
4WAU5000-Q3 | Gold Coated Ø4 in Silicon Wafers5000 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (99.999 %) | 5000 Å | 75 Å Cr | 3/pkg |
These items are fabricated upon order and may require up to 5 business days to ship. All items are sold in packs of 5 wafers.
Titanium (Ti) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
3WAU100-Q5 | Gold Coated Ø3 in Silicon Wafers100 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (99.999 %) | 100 Å | 20 Å Cr | 5/pkg |
3WAU1000-Q5 | Gold Coated Ø3 in Silicon Wafers1000 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (99.999 %) | 1000 Å | 50 Å Cr | 5/pkg |
3WAU5000-Q5 | Gold Coated Ø3 in Silicon Wafers5000 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (99.999 %) | 5000 Å | 75 Å Cr | 5/pkg |
These items are fabricated upon order and may require up to 5 business days to ship. All items are sold in packs of 9 wafers.
Titanium (Ti) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
2WAU100-Q9 | Gold Coated Ø2 in Silicon Wafers100 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (99.999 %) | 100 Å | 20 Å Cr | 9/pkg |
2WAU500-Q9 | Gold Coated Ø2 in Silicon Wafers500 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (99.999 %) | 500 Å | 50 Å Cr | 9/pkg |
2WAU1000-Q9 | Gold Coated Ø2 in Silicon Wafers1000 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (99.999 %) | 1000 Å | 50 Å Cr | 9/pkg |
2WAU5000-Q9 | Gold Coated Ø2 in Silicon Wafers5000 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (99.999 %) | 5000 Å | 75 Å Cr | 9/pkg |