Patent №
US 4,637,726
Granted
1987-01-20
Filed 1985
Owner
UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMY
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06699282
A wafer is positioned in a magnetic field. A computer initializes the light level and the electronic gain of each detector preamp associated with a fiber optic link from the analyzer. The magnetic field direction would then be reversed by computer command. This would cause a localized change in intensity of light passing through the wafer, due to Faraday Rotation (FR). The resulting change in detector output together with location and wavelength data could be used to compute a map of the wafer.
AI classification
Ownership
UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMY
assignment · 46150058
Assignors
WALKER, CLIFFORD G., TANTON, GEORGE A.
On an employer assignment, the assignors are typically the inventors.