Base Materials

Listed below are Kokomo Thick Film Printing’s standard substrate materials. Our experience in thick film printing and tooling gives us the ability to respond quickly to customized requirements. If you need assistance optimizing your product please give us a call. We will be glad to help you determine what material is best suited to your application. We commonly work with alumina substrates, aluminum nitride substrates, and stainless steel.

Alumina Substrate (Al2O3)

  • 96% Alumina
  • CTE: 6.4 1×10-6/°C
  • Thermal conductivity: 20 W/m °K
  • Standard size: 3.25″ x 5.5″, 6″ x 8″
  • Standard thickness: 0.035″, 0.025″

Aluminum Nitride Substrate (AlN)

  • CTE: 4.2 @ 1 x 10-6/°C
  • Thermal conductivity: 170-200 W/m °K
  • Standard size: 4.5″ x 3.5″
  • Standard thickness: 0.025″

Stainless Steel

  • 400 series
  • CTE: 10.4 um/m °C
  • Thermal conductivity: 26 W/m °K
  • Standard size: 3.25” x 5.5”
  • 100% recyclable
  • Custom grades and sizing available

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