Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Jan 2018 My Price 7.00

ceramic substrate,

A chip that is of length L = 5 mm on a side and thickness t = 1 mm is encased in a ceramic substrate, and its exposed surface is convectively cooled by a dielectric liquid for which h = 150 W/m2 ∙ K and T∞ = 20°C.

 

In the off-mode the chip is in thermal equilibrium with the coolant (Ti = T∞). When the chip is energized, however, its temperature increases until a new steady state is established. For purposes of analysis, the energized chip is characterized by uniform volumetric heating with

Assuming an infinite contact resistance between the chip and substrate and negligible conduction resistance within the chip, determine the steady-state chip temperature Tf. Following activation of the chip, how long does it take to come within 1°C of this temperature? The chip density and specific heat are ρ = 2000 kg/m3 and c = 700 J/kg ° K, respectively.

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Maurice Tutor
(5)
Status NEW Posted 05 Jan 2018 12:01 PM My Price 7.00

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