silicon chip is encapsulated so that, under steady-state conditions, all the power dissipated by it is transferred by convection for a fluid current with h=1000 W/(m2.K) and Tꚙ=25oC. An aluminum plate (k=237 W/(mK)), 2 mm thick, is placed on the chip surface, the contact resistance on the chip/aluminum interface is 0.5x10-4 (m2.K)/W. If the chip area is 100 mm2 and the maximum allowable temperature is 85 oC, what is the maximum allowable power dissipation on the chip?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A silicon chip is encapsulated so that, under steady-state conditions, all the power dissipated by it is transferred by convection for a fluid current with h=1000 W/(m2.K) and Tꚙ=25oC. An aluminum plate (k=237 W/(mK)), 2 mm thick, is placed on the chip surface, the contact resistance on the chip/aluminum interface is 0.5x10-4 (m2.K)/W. If the chip area is 100 mm2 and the maximum allowable temperature is 85 oC, what is the maximum allowable power dissipation on the chip?

 

To=25°C
Ph=1000W/m2-K
L=2mm
Ri0.5xl
Transcribed Image Text:To=25°C Ph=1000W/m2-K L=2mm Ri0.5xl
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