Thick Film Alumina PCB
What is Thick Film Alumina PCB ?
Thick Film Alumina PCB also calls Thick Film Resistor Alumina PCB is a technology to incorporate reliable carbon resistors printing on the Alumina substrate using standard PCB processing. At present, Thick Film Alumina PCB technology is quite mature that can be printed on a wide range of substrates — from high temperature Alumina to common FR4 PCB materials,or Polyimide (PI) Flex PCB Material. The printed resistor materials are based on a novel hydrophobic polyimide resin developed specifically to serve as a polymeric thick film resistors or thin film resistor material. As Thick Film Alumina PCB technology, we can put resistor, electric capacity, conductor, semi-conductor, and interchangable conductor on Alumina board, after manufacturing steps of printing and high temperature sintering.The resistors can be laser trimming with high tolerance condition, So we can make all the resistors with the same value, or each resistor with different value on a board. |
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Thick Film Resistor Alumina PCB Properties: |
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1, Ceramic Substrate can be 96% or 98% Alumina (Al2O3) or Beryllium Oxide (BeO), thickness range: 0.25, 0.38, 0.50mm, 0.635mm (default thickness), 0.76mm, 1.0mm. Thicker thickness such as 1.6mm or 2.0mm can be customized too. 2, Conductor layer materail is silver palladium, gold palladium, or Mo/Mu+Ni (for Ozone). 3, Thickness of conductor >= 10 miron (um), and Max can be 20 micron (0.02mm). 5, Tolerance for final trace layout will be +/-10%. 6, Both gold and silver palladium is workable for gold-wire bonding, but customer need to mention that so that we will use special silver palladium which is suitable for that artwork. 7, Gold palladium is much more expensive than silver, about 10~20 times higher. 8, More different resistor value on the same board, more expensive the board will be. 9, Normally layers are 1L and 2L (with plated through hole (PTH), and plated material is the same like the one used for conductor). 10, Soldermask is also available upon request, working temperature >500 C, and color is semi-transparent. |
Engineering Specifications: | Typical applications: | |||||||
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