Printed Circuit Design & Fab - March 2009 - (Page C18) ARLON ,TIM . , . . , , . The basic equation for heat flow is: dQ/dt ~ Tc*(A/Tk)* T Where:dQ/dt is the rate of heat flow TC is the coefficient of heat transfer (W/m-K) A is the surface area between the hot and cool materials Tk is the thickness of the interface material T (delta T) is the temperature difference between the two materials dQ/dt TC A Tk T , , , * . * . * * * , . - , - , , . , CTE , , . . . , ” ”, : , . : , , , SIEMENS,ARLON . 18 2009 03
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