Patent ID: 9417309
Filing Date: 2016-08-16
CPC Classification: G01R

Claim Text:
1. An apparatus for calibrating a three-dimensional thermography fault isolation tool, comprising: a substrate having two or more pins; a first semiconductor die coupled to the substrate; a first heat generating test component at the first semiconductor die; and a second heat generating test component, wherein the first heat generating test component and the second heat generating test component are located at different respective heights; wherein the first heat generating test component is configured to produce a first temperature change in response to a first voltage applied by the three-dimensional thermography fault isolation tool to the two or more pins; wherein the second heat generating test component is configured to produce a second temperature change in response to the first voltage or a second voltage applied by the three-dimensional thermography fault isolation tool; and wherein a first time difference exists between the application of the first voltage and an occurrence of the first temperature change in the first heat generating test component, and a second time difference exists between the application of the first voltage or the second voltage and an occurrence of the second temperature change in the second heat generating test component; and wherein the apparatus further comprises a processing unit for processing the first time difference and the second time difference to obtain a result for calibrating the three-dimensional thermography fault isolation tool.