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.
Typical Physical and Mechanical Properties:
|
MaterialComposition
|
Melting Range (°C )
|
Thermal Conductivity W/moK 25°C
|
Coefficient of Thermal Expansion 10-6/°C
|
| 18Ni/28Co/Fe bal. |
1450 |
17.2 |
4.9 |
Typical areas Application:
