Micro-Electronic Basket Heaters

Tungsten basket heaters are a type of evaporation source used in thin film deposition systems for heating small crucibles containing metals and alloys. They are made from tungsten wires formed into a basket shape that fits around the outside of the crucible.The key benefits of using tungsten basket heaters include:

• Ability to reach high temperatures with low current
• Low cost
• Ease of use
• Multi-directional coatings
• Low power requirements

Tungsten basket heaters come in various shapes and sizes to accommodate different substrate areas and material characteristics. By choosing a heater shape that closely matches the substrate’s area and the material’s form, the heating process can be optimized.These heaters are often suitable for multiple uses when heating the same material repeatedly. They can be used for upwards evaporation only.

Some common specifications of tungsten basket heaters include:

• Voltage: 5-19.7 V
• Current: 2.54-4.56 A
• Power: 41-251 W
• Temperature: Up to 1800°C
• Crucible size: 3.5″ L x 0.5″ W x 0.375″ H

In summary, tungsten basket heaters provide an effective, low-cost method for heating small crucibles in thin film deposition systems. Their versatile shapes and reusability make them a popular choice for many applications.