Products Lab Consumables & Materials Thin Film Deposition Parts Molybdenum / Tungsten / Tantalum Evaporation Boat
Molybdenum / Tungsten / Tantalum Evaporation Boat

Thin Film Deposition Parts

Molybdenum / Tungsten / Tantalum Evaporation Boat

Item Number : KME01

Price varies based on specs and customizations


Material
Tungsten / Molybdenum / Tantalum
Specification
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Introduction

Evaporation boats are used in the resistance evaporation process to heat and evaporate materials. They are made of materials with low vapor pressures, such as tungsten, molybdenum, molybdenum-lanthanum (ML), molybdenum-yttrium oxide (MY), or tantalum, to ensure that no particles of the boat material enter the vapor and the final layer. Evaporation boats have excellent corrosion resistance, low vapor pressures, good electrical conductivity, a very high melting point, and are dimensionally stable.

Application 

Evaporation boat sources are used in thermal evaporation systems to deposit metals, alloys, and materials. They come in different thicknesses made of tungsten, tantalum, and molybdenum, ensuring compatibility with various power sources. These boats are crucial for vacuum evaporation and thin film deposition, including electron beam fabrication. They are widely employed in industries such as vacuum coating, electronics, solar energy, and metallurgy. To prevent cracking, gradual heating of the container is essential. Evaporation boats are versatile tools playing a vital role in materials analysis and thin film deposition processes.

Molybdenum, tungsten, and tantalum evaporation boats find applications in various industries, including:

  • Vacuum evaporation of materials
  • Carrying boats in furnace machines
  • Rare earth industry
  • Nuclear fuel sintering
  • Capacitor discharge sintering

Detail & Parts

Molybdenum / Tungsten / Tantalum Evaporation Boat detail 1

Molybdenum / Tungsten / Tantalum Evaporation Boat detail 2

Molybdenum / Tungsten / Tantalum Evaporation Boat detail 3

Length 100 width 8 thickness 0.2/0.3mm Length 100 width 15 thickness 0.2/0.3/0.5mm Length 100 width 20 thickness 0.2/0.3/0.5mm Groove size: length 50 deep 2.6

Principle

Molybdenum/tungsten/tantalum evaporation boats are used in thermal evaporation systems to deposit a wide range of metals, alloys, and materials. The boats are heated by passing an electric current through them, which causes the material to evaporate. The evaporated material then condenses on the substrate, forming a thin film. The thickness of the film can be controlled by the amount of current passed through the boat and the evaporation time.

Advantages

  • Excellent corrosion resistance
  • Low vapor pressures
  • Good electrical conductivity
  • Very high melting point
  • Dimensionally stable

FAQ

Precautions for using evaporation boats.

Put the item to be analyzed into a crucible or a saggar and heat it; the increase and decrease of the heating temperature depends on the characteristics of the equipment and product; heating or cooling too fast will cause the evaporation boat to break. Your best bet is to slow down the heating process, which will extend the life of your boat.

What are the advantages of using evaporation boats?

Evaporation boats offer several advantages in thin film deposition processes. They provide a controlled environment for the evaporation of materials, ensuring precise control over film thickness and uniformity. Evaporation boats can withstand high temperatures and provide efficient heat transfer, allowing for consistent evaporation rates. They are available in various sizes and shapes, accommodating different evaporation systems and substrate configurations. Evaporation boats enable the deposition of a wide range of materials, including metals, semiconductors, and ceramics. They are easy to load and unload, facilitating quick material changes or process adjustments. Overall, evaporation boats are essential tools in thin film deposition techniques, offering versatility, reliability, and reproducibility.

What is the typical lifespan of an evaporation boat?

The lifespan of an evaporation boat can vary depending on several factors. It primarily depends on the material used for the boat, the operating conditions, and the frequency of use. Evaporation boats made of refractory metals like tungsten or molybdenum are generally more durable and have longer lifespans compared to boats made from ceramic materials. With proper handling, regular maintenance, and appropriate cleaning procedures, evaporation boats can typically be used for multiple deposition cycles. However, over time, evaporation boats may experience wear and tear, such as cracking or degradation, which may reduce their lifespan. It is important to monitor the condition of the evaporation boat, conduct regular inspections, and replace it when necessary to ensure consistent and reliable thin film deposition.

Can evaporation boats be reused?

Evaporation boats can be reused, but it depends on several factors. The boat's condition, cleanliness, and compatibility with different evaporant materials play a significant role in determining whether it can be reused. If the evaporation boat is in good condition, free from cracks or defects, and has been cleaned thoroughly, it can typically be reused for subsequent depositions. However, if the boat has been exposed to reactive materials or shows signs of degradation, it may not be suitable for reuse. Consider the potential for contamination or unwanted reactions when reusing evaporation boats. Regular inspection and proper cleaning procedures are essential to maintain the boat's performance and ensure its suitability for reuse.

How do you select the appropriate evaporation boat material?

The selection of the appropriate evaporation boat material depends on several factors. Consider the melting point of the material being evaporated and choose a boat material with a higher melting point to prevent boat failure. Also, consider the compatibility of the boat material with the evaporant to avoid reactions or contamination. The boat's thermal conductivity and heat capacity should be evaluated for efficient heat transfer and temperature control during evaporation. Additionally, consider the boat's mechanical properties, such as strength and durability, to ensure it can withstand repeated heating and cooling cycles.
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4.8

out of

5

The build quality of this boat is superb. It's well worth the money.

Gerardo Brunelli

4.6

out of

5

These evaporation boats are of the highest quality and worked very well for my research.

Marion Lamy

4.9

out of

5

The tantalum evaporation boat I received arrived quickly and it functions perfectly.

Vijay Raman

4.7

out of

5

I highly recommend these boats. They're durable and heat resistant, making them perfect for my application.

Isabella Schneider

4.9

out of

5

These evaporation boats are a great value for the price. They're made of high-quality materials and perform very well.

Oliver Andersson

4.7

out of

5

I'm very satisfied with these evaporation boats. They're easy to use and clean, and they produce excellent results.

Aaliyah Patel

4.8

out of

5

These evaporation boats are a great addition to my lab. They're versatile and can be used for a variety of applications.

Lucas Hernandez

4.6

out of

5

I'm very happy with these evaporation boats. They're well-made and perform as expected.

Emma Dubois

PDF of KME01

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Catalog of Thin Film Deposition Parts

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Catalog of Evaporation Boat

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Catalog of Thermal Evaporation Sources

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