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Tungsten Disc & Tungsten Square
We supply tungsten disc, tungsten washer and tungsten square for power semiconductors.
Tungsten disc & tungsten square are widely used as contact materials in silicon controlled rectifiers diodes, transistors and thyristors (GTO’S), it is only involved in specialist applications. Otherwise, molybdenum is the first choice mounting material for power semiconductor devices due to its significantly lower cost and weight.
Tungsten and molybdenum have a similar coefficient of expansion to silicon combined with high thermal conductivity makes them an ideal choice, especially in large area power devices where considerable heat is generated. Further applications include the use of molybdenum and tungsten as heat sink bases in IC’S, LSI’S and hybrid circuits.
Tungsten discs and tungsten squares are cut from tungsten sheets and tungsten plates by saw or EDM cutting, Tungsten discs and tungsten squares can also be punched.
Specifications for tugnsten disc and tungsten square:
|Product||Tungsten Disc||Tungsten Square|
|Size||0.1-20 thick x 20-100mm Diameter||0.1-20mm x 20-100mm x 20-100mm|
Dimensions for tungsten disc:
|Tungsten Disc Thickness||Tungsten Disc Diameter|
Tungsten with larger thickness will be named as tungsten cylinder, we can also provide this per request.
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