GOLD (Au) COATED SILICON
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-Purity Gold (Au) Coated Silicon Wafers & Chips | Prime Grade
Our gold-coated silicon substrates are engineered for high-precision thin-film research, AFM/SPM, nanotechnology, and biotechnology. Utilizing electron beam evaporation in a dedicated high-vacuum system, we deposit high-purity gold over a chromium adhesion layer to ensure stable, conductive surfaces for your most demanding experiments.
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Extensive Size Range: We offer standard wafers in Ø2”, Ø3”, and Ø4” diameters, as well as 10 x 10 mm chips diced from 4” wafers. Custom chip sizes are available upon request.
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Large-Format & Custom Wafers: We provide expanded capabilities for larger projects, including Ø6″, Ø8″, and Ø12″ silicon wafers.
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Custom Coating Services: In addition to our stock inventory, we offer bespoke gold deposition on customer-provided substrates with custom-tailored material stacks.
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Flexible Thickness Options: Our standard coating is 50 nm gold over a 5 nm chromium layer. Specialized thicknesses of 10 nm, 100 nm, and 500 nm are also available to meet specific research needs. Customized thicknesses are available upon request.
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Secure Packaging: To maintain pristine surface quality, wafers are packaged and vacuum sealed in a cleanroom environment and shipped in individual wafer carrier trays, while silicon chips are protected in Gel-Pak boxes to prevent movement and scratches during transit.
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Technical Performance: Our films are optimized for thermal stability up to 175°C. While not atomically flat, the coatings are carefully controlled to maintain high uniformity with height differences limited to the nanometer range.
For General Inquiries:
- [email protected]
- Phone: 1 519.894.4441
Singles
Popular Items Sold Individually
High quality substrates coated with 500 Å (50 nm) or 1000 Å (100 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 | Unit | Lead Time/Stock | Price (USD) | Order |
|---|---|---|---|---|---|---|---|---|
| S00-00001-00 | Gold Coated Silicon Chips | 6/pk 500 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (Au) | 500 Å | 50 Å Cr | 6/pkg | In Stock | $210.00 | |
| S00-00002-00 | Gold Coated Silicon Chips | 20/pk 500 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (Au) | 500 Å | 50 Å Cr | 20/pkg | In Stock | $430.00 | |
| S01-00002-00 | Gold Coated Silicon Chips | 20/pk 1000 Å Au | 10 mm x 10 mm x 0.525 mm | Gold (Au) | 1000 Å | 50 Å Cr | 20/pkg | In Stock | $510.00 | |
| QA05-00180 | Gold Coated Ø2 in Silicon Wafer 500 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (Au) | 500 Å | 50 Å Cr | each | In Stock | $130.00 | |
| QA05-00190 | Gold Coated Ø4 in Silicon Wafer 500 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (Au) | 500 Å | 50 Å Cr | each | In Stock | $340.00 | |
| QA05-00191 | Gold Coated Ø4 in Silicon Wafer 1000 Å Au | Ø101.6 mm dia. x 0.525 mm thick | Gold (Au) | 1000 Å | 50 Å Cr | each | In Stock | $430.00 |
Packs
Gold Coated Ø4 in Silicon Wafers | Prime Grade
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.
High quality substrates coated with pure gold (99.999 %). All coatings include a 20-75 Å chromium adhesion layer between the substrate surface and the gold coating. Titanium (Ti) can also be used as an adhesion layer upon request.
All gold substrates are autoclavable.
| Product # | Description | Coating | Thickness | Adhesion | Unit | Lead Time/Stock | Price (USD) | Order |
|---|---|---|---|---|---|---|---|---|
| 4WAU500-Q3 | Gold Coated Ø4 in Silicon Wafers 500 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (Au) | 500 Å | 50 Å Cr | 3/pkg | In Stock | $955.00 | |
| 4WAU100-Q3 | Gold Coated Ø4 in Silicon Wafers 100 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (Au) | 100 Å | 20 Å Cr | 3/pkg | 1 week | $820.00 | |
| 4WAU1000-Q3 | Gold Coated Ø4 in Silicon Wafers 1000 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (Au) | 1000 Å | 50 Å Cr | 3/pkg | In Stock | $1,180.00 | |
| 4WAU5000-Q3 | Gold Coated Ø4 in Silicon Wafers 5000 Å Au | Ø101.6 mm x 0.525 mm thick | Gold (Au) | 5000 Å | 75 Å Cr | 3/pkg | 1 week | $2,880.00 |
Packs
Gold Coated Ø3 in Silicon Wafers | Prime Grade
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.
High quality substrates coated with pure gold (99.999 %). All coatings include a 20-75 Å chromium adhesion layer between the substrate surface and the gold coating. Titanium (Ti) can also be used as an adhesion layer upon request.
All gold substrates are autoclavable.
| Product # | Description | Coating | Thickness | Adhesion | Unit | Lead Time/Stock | Price (USD) | Order |
|---|---|---|---|---|---|---|---|---|
| 3WAU100-Q5 | Gold Coated Ø3 in Silicon Wafers 100 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (Au) | 100 Å | 20 Å Cr | 5/pkg | 1 week | $820.00 | |
| 3WAU5000-Q5 | Gold Coated Ø3 in Silicon Wafers 5000 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (Au) | 5000 Å | 75 Å Cr | 5/pkg | 1 week | $2,880.00 | |
| 3WAU1000-Q5 | Gold Coated Ø3 in Silicon Wafers 1000 Å Au | Ø76.2 mm x 0.381 mm thick | Gold (Au) | 1000 Å | 50 Å Cr | 5/pkg | 1 week | $1,180.00 |
Packs
Gold Coated Ø2 in Silicon Wafers | Prime Grade
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.
High quality substrates coated with pure gold (99.999 %). All coatings include a 20-75 Å chromium adhesion layer between the substrate surface and the gold coating. Titanium (Ti) can also be used as an adhesion layer upon request.
All gold substrates are autoclavable.
| Product # | Description | Coating | Thickness | Adhesion | Unit | Lead Time/Stock | Price (USD) | Order |
|---|---|---|---|---|---|---|---|---|
| 2WAU500-Q9 | Gold Coated Ø2 in Silicon Wafers 500 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (Au) | 500 Å | 50 Å Cr | 9/pkg | In Stock | $955.00 | |
| 2WAU100-Q9 | Gold Coated Ø2 in Silicon Wafers 100 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (Au) | 100 Å | 20 Å Cr | 9/pkg | 1 week | $820.00 | |
| 2WAU1000-Q9 | Gold Coated Ø2 in Silicon Wafers 1000 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (Au) | 1000 Å | 50 Å Cr | 9/pkg | 1 week | $1,180.00 | |
| 2WAU5000-Q9 | Gold Coated Ø2 in Silicon Wafers 5000 Å Au | Ø50.8 mm x 0.279 mm thick | Gold (Au) | 5000 Å | 75 Å Cr | 9/pkg | 1 week | $2,880.00 |
Please Note: All prices are in U.S. dollars.
Looking for custom substrates or coatings?
We're here to help! Please fill out our Request a Quote form.