Rave Scientific
Nanotechnology Instrument Providers and Consultants
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- Gold Coated Si Wafers
Nano-Tec Gold Coated Silicon Wafers
Wafer Cleaving Pliers Wafer Holders Wafer Handling Tweezers Wafer Carrier Trays
Overview
Rave Scientific offers the Nano-Tec gold coated silicon wafers which are useful for thin film research, AFM / SPM, nanotechnology and biotechnology applications. The silicon wafers are coated with 50nm of pure gold over a 5nm adhesion layer of Cr. Both Cr and Au are deposited in a dedicated high vacuum deposition system with electron beam evaporation sources. The gold coating is not atomically flat; there are height differences in the nm range. The maximum use temperature is around 175°C; higher temperatures could result in delamination of the gold film. Available in two sizes: Ø2”/51mm and Ø4”/100mm. The Nano-Tec gold coated wafers are individually packed in wafer carrier trays for protection.
Specifications of the Nano-Tec gold coated Ø2”/51mm silicon wafers:
| Coating film | : 50nm Au, 99.999% purity | |
| Adhesion film | : 5nm Cr, 99.98% purity | |
| Surface roughness | : several nm | |
| Si substrate Orientation | : | |
| Type | : P (Boron) with one primary flat | |
| Resisantance | : 1-30 Ohm/cm | |
| Diameter | : Ø51mm | Ø100mm |
| Thickness | : 275µm (+/- 20µm) | 525µm (+/- 20µm) |
| TTV | : =< 20µm | =< 20µm |
| Primary Flat | : 15.9 +/- 1.65mm | 32.5 +/- 2.5mm |
