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J D Global Trading Company is kovar, kovar sheet, kovar plate, kovar wire, kovar tubing, kovar coils supplier and exporter. Kovar has a wide usage in the electronics industry, such as metal parts bonded to hard glass envelopes. These parts are used for such devices as power tubes and X-ray tubes, etc. In the semiconductor industry kovar is used in hermetically sealed packages for both integrated and discrete circuit devices.

J D Global Trading Company has been providing customers over the past years with the most advanced hermetic connector and packaging technologies available to provide a controllable expansion composite matrix, yielding superior material stability and uniform thermal expansion characteristics to provide the designer a practical solution to meet critical thermal parameters.

Advantages of Kovar:

Uniform Thermal expansion; Low thermal conductivity; Precision flatness capability; Bondable gold plating; Thickness from .004" to .500"; Zero corner radius; Low thermal expansion; Precision complex geometry.

Kovar Typical Physical and Mechanical Properties:

Material Composition Melting Range (°C ) Thermal Conductivity W/moK 25°C Coefficient of Thermal Expansion 10-6/°C
29Ni/17Co/Fe bal. 1450 17.2 4.9

Kovar Typical areas Application:

  • Kovar Material use on Microwave Carriers
  • Kovar Material use on Ceramic Substrate Carriers
  • Kovar Material use on Surface Mount Package Conductors
  • Kovar Material use on Rocket Parts
  • Kovar Material use on Optical Packages
  • Kovar Material use on Power Packages
  • Kovar Material use on SMD packages
  • Kovar Material use on SAW filters
  • Kovar Material use on MEMS devices
  • Kovar Material use on Hybrid circuits
  • Kovar Material use on Photo, Laser Diode...etc