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

Thin Film Deposition Parts

Molybdenum Tungsten Tantalum Special Shape Evaporation Boat

Item Number : KME01-2

Price varies based on specs and customizations


Material
Tungsten / Molybdenum / Tantalum
Specification
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Introduction

Tungsten evaporation boat, also known as evaporated tungsten boat or coated tungsten boat, is a device used in vacuum coating and sintering furnace industries. It is made by high-temperature stamping of tungsten sheet and comes in various specifications and shapes. Tungsten boats are typically employed in evaporation processes, where they hold low melting point metals that are vaporized and deposited onto surfaces when heated to around 2000 degrees Celsius. They are also used in ship industries to create metal parts by sintering tungsten metal and connecting its ends with wires.

Application

Evaporation boat sources are important components used in thermal evaporation systems to facilitate the deposition of metals, alloys and various materials. The boats come in different thicknesses and are made from tungsten, tantalum and molybdenum, ensuring compatibility with a wide variety of power sources. Their importance lies in their key role in vacuum evaporation and thin film deposition processes, including the widely adopted electron beam fabrication technique. These multi-functional tools have a wide range of applications in industries such as vacuum coating, electronics, solar energy and metallurgy. To prevent cracking, the container must be heated gradually. Therefore, evaporation boats have become an indispensable part in material analysis and thin film deposition, making a significant contribution to scientific and technological progress.

Tungsten Boats

  • Light industry, electronics, military industry, semiconductor industry.
  • Coating, precision ceramic sintering, capacitor sintering, bell jar, electron beam spraying.
  • X-ray diagnostic targets, crucibles, heating elements, X-ray radiation shielding.
  • Sputtering targets, electrodes, semiconductor substrates.
  • Electron tube components, electron beam evaporation emission cathode, ion implanter cathode, anode.

Molybdenum Boats

  • Vacuum deposition material
  • High-efficiency carrier in the furnace.
  • Air vacuum thermal evaporation, rare earth industry, nuclear fuel sintering, capacitor discharge sintering.
  • Bearing boats and related parts for mechanical high-temperature furnaces.

Tantalum Boats

  • Capacitors and electronic products
  • Chemical reaction tube
  • Nuclear reactors
  • Heat exchangers
  • Distillation equipment

Detail & Parts

Butterfly tungsten boat

T0.2/0.3*W20*L100;

Slot size: 50 long by 5.5 deep, in the hull

15.5 in width, 8.6 in the middle of the bottom of the groove

Convex boat

T0.2*W7*L62;

Groove length 20, groove depth 1.3, height 5

sinking evaporator

TO.3*W9.9*L91;

Groove length 41, groove depth 1.5, height 11

Convex boat detail

T0.3*W15.5*L102;

Groove length 50, groove depth 3.5, height 14

sinking evaporator detail 2

T0.2*W15.5*L102;

The groove length is 43, the inner length is 35, the groove depth is 3.0,

height 9

Convex boat detail

TO.2*W15.5*L102;

The groove length is 43, the inner length is 35, and the groove depth is 30.

height 9

large capacity evaporation boat

T0.2*W23*L102;

The length of the slot is 67, the upper width of the slot is 30, and the inner side is long

42, groove depth 9.6, height 20

evaporation boat

TO.2*W18*L78;

Groove length 40, groove width 18, groove depth 1.8,

evaporation boat detail 3

L45*W13*T02

50/55/60/65/70/80*13*0.2

90/100*13*0.3

Molybdenum folding boat
0.12*15*8*100

 

Features 

Tungsten evaporation boats are a crucial component of vacuum coating systems, offering exceptional performance and durability:

  • Exceptional Durability and Robustness:** tungsten evaporation boats are engineered to withstand the demanding conditions of vacuum coating processes, ensuring long operating lifetimes and consistent performance.
  • Smooth and Even Spreading of Molten Metals:** The unique design of these boats facilitates the uniform distribution of molten metals, resulting in high-quality coatings with optimal thickness and composition.
  • Versatile Metal Deposition:** Tungsten evaporation boats enable the vacuum deposition of a wide range of metals, providing flexibility for various coating applications.
  • Purity Preservation:** The high purity of tungsten material used in these boats helps maintain the integrity of the deposited metal films, ensuring their reliability and performance.

FAQ

What Are Thermal Evaporation Sources?

Thermal evaporation sources are devices used in thermal evaporation systems to deposit thin films onto substrates. They work by heating a material (evaporant) to high temperatures, causing it to evaporate and then condense onto a substrate, forming a thin film.

What Are The Main Types Of Thermal Evaporation Sources?

The main types of thermal evaporation sources include resistive evaporation sources, electron-beam evaporation sources, and flash evaporation sources. Each type uses different methods to heat the evaporant, such as resistive heating, electron beam heating, or direct contact with a hot surface.

How Do Thermal Evaporation Sources Work?

Thermal evaporation sources work by passing electrical current through a resistive material, which heats up to high temperatures. This heat is transferred to the evaporant, causing it to melt and vaporize. The vapor then travels through a vacuum chamber and condenses onto a substrate, forming a thin film.

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 Are The Advantages Of Using Thermal Evaporation Sources?

The advantages of thermal evaporation sources include high deposition rates, good directionality, excellent uniformity, and compatibility with various materials. They are also relatively simple and affordable, making them suitable for a wide range of applications in thin film deposition.

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.

What Applications Are Thermal Evaporation Sources Used For?

Thermal evaporation sources are used in various applications such as the production of optical coatings, semiconductor devices, and various types of thin films. They are particularly useful in industries that require precise control over the deposition of materials onto substrates.

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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