Patent ID: 11906578
Assignee: BATTELLE MEMORIAL INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A multispectral inspection (MSI) device for inspecting an associated electronic item including a printed circuit board (PCB), the MSI device comprising:
an electronic power supply configured to electrically power the associated electronic item in accordance with one or more test vectors;
an optical imaging scanner configured to scan the associated electronic item, wherein the optical imaging scanner has a lateral spatial image resolution of 100 micron or finer;
a functional imaging scanner configured to scan the associated electronic item, wherein the functional imaging scanner has a lateral spatial image resolution of 100 micron or finer; and
an electronic processor programmed to:
control the optical imaging scanner to acquire an optical image of the associated electronic item;
control the functional imaging scanner and the electronic power supply to acquire one or more functional images of the associated electronic item powered in accord with respective one or more test vectors using the electronic power supply; and
combine the optical image and the one or more functional images to generate a three-dimensional (3D) signature for the associated electronic item comprising a stack of the images, wherein the combining to generate the 3D signature includes resampling the images to a single lateral resolution;
wherein the single lateral resolution of the 3D signature is a highest resolution of any portion of the optical image and the one or more functional images and the combining includes upsampling any portion of any image with coarser resolution to the highest resolution.