Was only inquiring whether "FLUXBLOCK 2", "DIE TOP 3 and "DIE LOW 4" where raw data values.
Using those as raw data getting the above graph..
Graph generated with
1. Heat flux = k x A x (Tdie_low - Tdie_top)/L (heat in watts, Fourier, q=k.A.dT/L, k=392W/m°C, A=0.0001m^2, L=0.005m)
2. Cu dT = (Tdie_low - Tdie_top)/L (Temperature gradient in °C/mm)
3. TIM C/W = ((Tdie_top - Cu dT x 2.) - (Cu dT x 2 + Tfluxblock))/Heat flux
or: (Extrapolated die top surface temp minus extrapolated FB lower surface temp, i.e Interface dT) divided by watts
4. C/W waterblock = (Tfluxblock - Cu dT* x 2.23 -Twater_in )/Heat flux -TIM C/W
or: (Extrapolated FB top surface temp minus Water in temp) divided by watts minusTIM i.e Air to WB base C/W
My values should show uncorrected values.Designated as (C/W) rather than (C/W)".
These (C/W)wb have previously been lower than (C/W)"wb.
Here, mine is higher than yours.
Was going to simply multiply (C/W)wb by 1.038069 to get (C/W)"wb.
1.038069 is my new number now I have(poached from you) the " positions in the Fluxbloc.However my values are higher.
Something is amiss.
Edit
Like the picture. Yes, does help.
Last edited by Les; 10-11-2005 at 12:18 PM.
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