Substrata offers a full suite of silver coated silicon wafers at affordable prices
All coatings are deposited under high vacuum using electron beam evaporation. Applications include reflectometry, nanotechnology, and AFM applications.
We use a thin titanium adhesion layer between the silicon and silver coating. This adhesion layer is optional and can also be replaced with chromium upon request. All wafers are packaged 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
Silver, Ag
- Purity: 99.99 %
- Deposition Technique: Electron Beam Evaporation
- Deposition Rate: 1-2 Å/s
- Process Pressure ≤ 2E-6 Torr
- Adhesion Layer: Ti (99.99 %)
High quality substrates coated with 500 Å (50 nm) of silver. All coatings include a 50 Å titanium adhesion layer between the substrate surface and the silver coating.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
4WAG500-Q3 | Silver Coated Ø4 in Silicon Wafers500 Å Ag | Ø101.6 mm x 0.525 mm thick | Silver (99.99 %) | 500 Å | 50 Å Ti | 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 3 wafers.
Chromium (Cr) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
4WAG100-Q3 | Silver Coated Ø4 in Silicon Wafers100 Å Ag | Ø101.6 mm x 0.525 mm thick | Silver (99.99 %) | 100 Å | 20 Å Ti | 3/pkg |
4WAG1000-Q3 | Silver Coated Ø4 in Silicon Wafers1000 Å Ag | Ø101.6 mm x 0.525 mm thick | Silver (99.99 %) | 1000 Å | 50 Å Ti | 3/pkg |
4WAG5000-Q3 | Silver Coated Ø4 in Silicon Wafers5000 Å Ag | Ø101.6 mm x 0.525 mm thick | Silver (99.99 %) | 5000 Å | 75 Å Ti | 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.
Chromium (Cr) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
3WAG100-Q5 | Silver Coated Ø3 in Silicon Wafers100 Å Ag | Ø76.2 mm x 0.381 mm thick | Silver (99.99 %) | 100 Å | 20 Å Ti | 5/pkg |
3WAG1000-Q5 | Silver Coated Ø3 in Silicon Wafers1000 Å Ag | Ø76.2 mm x 0.381 mm thick | Silver (99.99 %) | 1000 Å | 50 Å Ti | 5/pkg |
3WAG5000-Q5 | Silver Coated Ø3 in Silicon Wafers5000 Å Ag | Ø76.2 mm x 0.381 mm thick | Silver (99.99 %) | 5000 Å | 75 Å Ti | 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.
Chromium (Cr) can also be used as an adhesion layer upon request.
Product # | Description | Coating | Thickness | Adhesion | Unit |
|---|---|---|---|---|---|
2WAG100-Q9 | Silver Coated Ø2 in Silicon Wafers100 Å Ag | Ø50.8 mm x 0.279 mm thick | Silver (99.99 %) | 100 Å | 20 Å Ti | 9/pkg |
2WAG500-Q9 | Silver Coated Ø2 in Silicon Wafers500 Å Ag | Ø50.8 mm x 0.279 mm thick | Silver (99.99 %) | 500 Å | 50 Å Ti | 9/pkg |
2WAG1000-Q9 | Silver Coated Ø2 in Silicon Wafers1000 Å Ag | Ø50.8 mm x 0.279 mm thick | Silver (99.99 %) | 1000 Å | 50 Å Ti | 9/pkg |
2WAG5000-Q9 | Silver Coated Ø2 in Silicon Wafers5000 Å Ag | Ø50.8 mm x 0.279 mm thick | Silver (99.99 %) | 5000 Å | 75 Å Ti | 9/pkg |