Tungsten Evaporation Boat 0.3×10×100 mm V Tub ATOMFAIR®

Store in a dry, inert atmosphere to prevent tungsten surface oxidation that can degrade resistive heating performance. Handle with clean, powder-free gloves to avoid contaminating the boat surface, which may cause uneven evaporation or arcing under vacuum.

• Oxidation Sensitivity: Exposure to ambient humidity and oxygen at elevated storage temperatures can form tungsten oxide layers, increasing electrical resistance and reducing boat lifetime.
• Contamination Risk: Fingerprint oils or particulate residues on the boat surface can vaporize during heating, contaminating the deposited film and altering evaporation uniformity.

Mount the boat securely in the evaporation source holder, ensuring electrical contacts are clean and tight to minimize contact resistance. Ramp power slowly to the rated 551 W while monitoring vacuum pressure to avoid thermal shock or outgassing spikes.

Required Equipment: Vacuum evaporation system with compatible source holder, Resistive heating power supply rated for 2.84 V and 194 A, Clean, powder-free gloves

1. Inspect the boat
   Inspect the tungsten boat for visible cracks, deformation, or surface oxidation before installation.
2. Mount the boat
   Mount the boat into the evaporation source holder, aligning the 100 mm length with the electrode clamps and tightening securely.
3. Load the evaporation material
   Load the evaporation material into the V tub, ensuring the volume does not exceed the 0.4 cc capacity.
4. Evacuate the chamber
   Evacuate the deposition chamber to the required base pressure before applying power to the boat.
5. Apply power gradually
   Apply power gradually from zero to the rated 551 W, monitoring current draw and vacuum pressure for stability.
6. Verify evaporation rate
   Verify the evaporation rate using a quartz crystal microbalance before opening the shutter to the substrate.

This tungsten evaporation boat (0.3 x 10 x 100 mm, V tub, 0.4 cc capacity) is designed for resistive-heating vacuum evaporation. Its 1800°C maximum temperature and defined electrical ratings (2.84 V, 194 A, 551 W) require precise matching with the power supply and source holder, making it suitable for processes demanding controlled deposition with a fixed tub geometry.

Positive

• High-temperature tungsten construction: Tungsten material supports a maximum temperature of 1800 °C, enabling compatibility with high-temperature evaporation processes for materials requiring sustained thermal stability.
• Precise dimensional specifications: Defined boat geometry (0.3 mm thickness, 10 mm width, 100 mm length) and V tub configuration (50 mm length, 2.3 mm depth, 0.4 cc capacity) allow direct dimensional matching with evaporation source holders before installation.

Trade-offs

• Fixed electrical rating constraints: The boat's electrical rating (2.84 V, 194 A, 551 W) must be matched exactly with the resistive-heating power supply; mismatched voltage, current, or power can cause inadequate heating or damage.
• Limited tub capacity for bulk loading: The 0.4 cc tub capacity restricts the volume of evaporation source material per run, which may require frequent reloading for processes needing larger or continuous deposition amounts.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).