Hump-Shaped Tungsten Heater
1. What Is a Hump-Shaped Tungsten Heater?
A hump-shaped tungsten heater is a tungsten evaporation source fabricated from high-purity tungsten wire through precision winding or forming processes. It features a central raised geometry resembling a camel’s hump, designed for controlled evaporation in vacuum coating systems.
2. Classification of Hump-Shaped Tungsten Heaters
Hump-shaped tungsten heaters are typically classified by the number of hump structures:
(1) Single peak tungsten heater: features a single central elevation, structurally similar to a V-shaped tungsten heater
(2) Double peak tungsten heater: features two sequential elevations, structurally similar to an M-shaped tungsten heater
(3) Multi-peak tungsten heater: consists of multiple peaks, with a waveform-like geometry
3. Advantages of CTIA’s Hump-Shaped Tungsten Heater
Compared with U-frame tungsten heaters, the hump-shaped design provides the following technical advantages:
(1) Localized evaporation source: Heat is concentrated at the bent regions, generating a near point-source evaporation flux for high-precision optical coating applications.
(2) Molten material retention: The peak-and-valley geometry functions as a containment zone, reducing molten metal flow toward electrode terminals and improving process safety.
(3) Thermal stress mitigation: The structured undulation effectively distributes thermal stress, reducing deformation and improving dimensional stability at temperatures above 2000°C.
4. Applications of CTIA’s Hump-Shaped Tungsten Heater
(1) Microelectronics and semiconductor packaging: Used for wafer-level metallization and localized pattern deposition, enabling high-precision conductive layer formation in microelectronic structures.
(2) Precision optics and display technology: Applied in optical filter fabrication and display substrate processing. In Liquid Crystal Display (LCD) color filter repair and micro-optical component manufacturing, it supports uniform multilayer thin-film deposition with tight thickness control.
(3) Laboratory research and precious metal evaporation: Utilized in Physical Vapor Deposition (PVD) systems as a resistive evaporation source. Its controlled peak-valley geometry is particularly suitable for evaporating precious metals such as gold and platinum with high material efficiency.
(4) Precision instrument manufacturing: Applied in small vacuum chambers for precision thin-film deposition, enabling accurate evaporation flux control for micro-sensors and advanced optical components.
With over 30 years of expertise in refractory metal manufacturing, CTIA provides advanced engineering and precision manufacturing solutions by systematically optimizing critical parameters including tungsten wire diameter, strand count, hump height and spacing, leg spacing, coil geometry, overall length, and bending angle. Integrated with surface treatments such as electrolytic polishing and chemical cleaning, CTIA delivers fully customized end-to-end solutions tailored to specific operating conditions and process requirements.
For any inquiry, please contact tungsten heater manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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