Patent ID: 11860087
Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A method for nanoscale tomographic imaging of heat dissipation in an electronic device, the method comprising:
generating a first plurality of sets of probe measurements for a plurality of sample locations located across a surface of an electronic device, wherein generating, for a particular sample location, a particular set of probe measurements of the first plurality of sets of probe measurements comprises:
generating a first probe measurement of the particular set of probe measurements by operating the electronic device to dissipate heat in a manner that varies at a first frequency and measuring a magnitude and phase of a variation in displacement of the surface of the electronic device over time at the particular sample location at the first frequency; and
generating a second probe measurement of the particular set of probe measurements by operating the electronic device to dissipate heat in a manner that varies at a second frequency and measuring a magnitude and phase of a variation in displacement of the surface of the electronic device over time at the particular sample location at the second frequency, wherein the first frequency and the second frequency differ; and

generating, based on the first plurality of sets of probe measurements, a three-dimensional tomographic map of dissipation of heat by the electronic device.