High Vacuum Environment: Capable of achieving ultra-high vacuum (UHV) or high vacuum to prevent contamination and ensure pure gold film.Resistive Heating Method: Uses electrical resistance heating (filament or boat) to melt and evaporate gold.High Purity Coating: Designed specifically for noble metals, ensuring high purity (e.g., 99.999%) gold coatings for electrical contacts or analytical samples.Visible Process Observation: Transparent glass (Borosilicate/Pyrex) bell jar allows real-time visual monitoring of the evaporation process.Compact & User-Friendly: Compact design suitable for laboratory benchtop or small cleanroom spaces.Versatile Substrate Handling: Can accommodate various substrates, including SEM/TEM grids and small wafers (up to 4-6 inches). - Bell Jar Chamber: Borosilicate glass or stainless steel dome providing the vacuum vessel.
- Vacuum Pumping System: A combination of a backing pump (rotary vane) and a high-vacuum pump (turbo-molecular or diffusion pump).
- Evaporation Source: Molybdenum or Tungsten boat/filament to hold and heat the gold source material.
- Substrate Holder/Stage: Stage to hold samples for uniform coating.(A rotating, sometimes heated are optional items)
- Thickness Monitor (QCM): Quartz Crystal Monitor (e.g., Inficon QCM) to measure and control the thickness of the gold film in real-time.
- Power Supply: High-current, low-voltage power supply for resistive heating.
- Shutter System: Manual or pneumatic shutter to control the start and end of deposition, protecting samples from premature evaporation.
- Vacuum Gauges: Pirani/Convectron gauges (low vacuum) and Ion gauges (high vacuum) to measure chamber pressure.
- Baseplate: Stainless steel base with electrical feedthroughs for the heater and water cooling.
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