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Spreading Delta-T Calculator
Provides relative spreading delta-ts between a vapor chamber and other common heat spreader materials.
Heat Source Information
Heat Source Power
Length of Heat Source
mm
Width of Heat Source
mm
Heat Source Area
cm
2
Heat Source Power Density
W/cm
2
Metal Base and Vapor Chamber Base Informatiom
Length of Base
mm
Width of Base
mm
Thickness of Solid Metal Base
mm
Material Conductivity (solid metal)
180
380
W/m-K
Aluminum = 180, Copper = 380
Thickness of Vapor Chamber Base
3.0
3.5
4.0
4.5
5.0
mm
Heat Sink Information
Heat Sink Theta
o
C/W
If unknown, divide 30 by heat source power in watts
RESULTS: Spreading Delta-T's in
o
C
Vapor Chamber
Metal Base
Metal Base
Metal Base
Any Location
Center
Edge Center
Corner
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