公开(公告)号：US10094874B1

公开(公告)日：2018-10-09

申请号：US15208931

申请日：2016-07-13

申请人： Sandia Corporation

发明人： Paiboon Tangyunyong ,  Edward I. Cole, Jr. ,  Guillermo M. Loubriel ,  Joshua Beutler

IPC分类号： G01R31/307 ,  G01R27/28 ,  G01R31/303 ,  G01R31/311

摘要： A visualization method for screening electronic devices is provided. In accordance with the disclosed method, a probe is applied to a grid of multiple points on the circuit, and an output produced by the circuit in response to the stimulus waveform is monitored for each of multiple grid points where the probe is applied. A power spectrum analysis (PSA) produces a power spectrum amplitude, in each of one or more frequency bins, on the monitored output for each of the multiple grid points. The PSA provides a respective pixel value for each of the multiple grid points. An image is displayed, in which image portions representing the multiple grid points are displayed with the respective pixel values.