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To: Daniel Schuh who wrote (21466)	12/4/2000 3:36:14 PM
From: Ali Chen	Read Replies (2) \| Respond to of 275872

Dan, <But how do you get from 0.835 w/cm-C at 25 degrees C (that from Handbook of Chem. &Phys, also approximately Pete's #) to 148 W/m-K 300 degrees K?> Assume a cube of silicon 1cm x 1cm x 1cm, insulated around 4 sides, with temperature difference of 1C=1K across. Then the power through the 1cm2 area would be: P = k[m,K,W]0.01m0.01m1K/0.01m = k[m,K,W]0.01. If we express the same equation in centimeters, P = k[cm,C,W]1cm 1cm*1K/1cm = k[cm,C,W] Both expressions represent the same value of power. Therefore k[m]/100 = k[cm]. CRC probably quotes some pre-historical research paper with who-knows crystal quality and orientation. So 0.8 of CRC is pretty close to 148/100 = 1.48 of your link.