GOLD (Au) COATED SILICON

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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.

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Application Fields

Nanopharma & Nanomedicine

Surface Science

Nano-Bio Sciences - Nanobiotechnology

MEMS characterization/Testing

Material Science

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 %)

Singles - Popular Items Sold Individually

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

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.
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

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.
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

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.
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