Substrates

• Ceramic Family
• Glass Family
• Beryllium Oxide (BeO)
• Glass Ceramic
• Aluminum Nitride
• Stainless Steel (400 Series Only)
• Porcelain Enameled Steel

Ceramic (Alumina)

Ceramic substrate are extremely versatile due to the ability to formulate heaters that have good mechanical strength with extremely low inertia mass. Extremely powerful heaters from very small sizes (0.05 sq.in. to approximately 70 sq. in.) can be fabricated with the ability to reach temperatures in excess of 400°C in a matter of seconds and cool down almost as rapidly.

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Glass Family: Borosilicate, Quartz

Thermo-Stone's conductive thin film is applied directly onto the Glass integrating the heater with the substrate. This proprietary process provides instant heatup and minimal energy. Transparent for heated observation windows or for IR communication devices.  Chemical Inert and Clean Room Qualified

  Wavelength Percentage with Heater Applied

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Beryllium Oxide (BeO)

BEO is the best Candidate for  extreme temperatures and watt density.  We can develop heaters with Watt Densities of up to 800 watts per square inch and temperatures over 500 ^oC.  This high performance substrate has excellent thermal conductivity (251 W/mk), which produces an extremely uniform heater.

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Glass Ceramic

Glass ceramic is a strong and versatile substrate that has many potential applications. Glass ceramic has the benefits of high temperature capacity (up to 400°C), high temperature gradient of 700°C, good mechanical strength and the ability to localize heat. It makes a very efficient radiant heater with an emissivity of 0.95. Rectangular, circular and tubular heater designs are available.(Available in Black, Clear, Tan and White)

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Aluminum Nitride

Aluminum Nitride substrates possess thermal gradient properties that allow for superior heat uniformity. These are chemically "clean" substrates meeting the tough clean room environment for the semiconductor, medical and other very stringent applications. Heaters laid down on this substrate are extremely versatile due to the ability to formulate heaters that have good mechanical strength with low inertia mass. Extremely powerful heaters from very small sizes (0.05 sq.in. to approximately 40 sq.in.) can be fabricated with the ability to reach temperatures in excess of 500°C (for short repetative cycles) in a matter of seconds and cool down almost as rapidly. Heaters have been tested with watt densities of over 500 watts per square inch.

Benefits

Thermal Conductivity

High Watt Density

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Stainless Steel (400 Series)

Thermo-Stone heating technology can be applied on 400 series stainless steel to create a strong, integrated heater capable of high operating temperatures. An insulative material is first applied, then the conductive thin film is deposited onto the stainless steel, integrating the heater with the substrate. This proprietary process provides instant heatup and minimal energy loss.

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Porcelain Enameled Steel

Porcelain enameled steel (PES) is an economical and efficient substrate for thin film heaters. The porcelain is a non-conductive insulator and the steel substrate acts as a strong structural member and heat retainer. Thermo-Stone's conductive thin film is applied directly onto the porcelain steel, integrating the heater with the substrate. This feature provides instant heatup and minimal energy loss.

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