System and method for temperature sensing of three-dimensional integrated circuit
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United States of America Patent
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Jan 2, 2018
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May 15, 2015
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Jun 24, 2014
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Abstract
A system and a method for temperature sensing of three-dimensional integrated circuits are revealed. The three-dimensional integrated circuit is formed by stacking of a plurality of chip layers that execute specific functions. The chip layer includes a master layer and at least one slave layer. The master layer is disposed with a master temperature sensor while a first thermal conductive part is arranged at the slave layer where heat is detected. The first thermal conductive part and the master temperature sensor are connected by a thermal conductive structure. Thereby temperature of various points at different chip layers is conducted to the same chip layer by Through Silicon Vias to be measured and calibrated. The design complexity and the implementation cost of the temperature sensing system are significantly reduced.
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