Patent ID: 7795605
Filing Date: 2010-09-14
Classification: G01K,H01L

Abstract:
1. A phase change material based temperature sensor circuit comprising: a metal-oxide-semiconductor field effect transistor (MOSFET) located on a top surface of a semiconductor substrate that is located in a semiconductor chip; a block of phase change material contacting a surface of a component of said MOSFET and embedded in a dielectric layer located over said semiconductor substrate, wherein said component comprises a semiconductor material; a first metal contact that is in direct contact with one portion of said block and embedded in said dielectric layer; a second metal contact that is in direct contact with another portion of said block and embedded in said dielectric layer; at least two input/output pads on said semiconductor chip; and a metal wiring embedded in said dielectric layer, directly contacting said first and second metal contacts, connecting said block and said at least two input/output pads to each of said first and second metal contacts, and configured to enable a resistance measurement of said block.