Patent ID: 9366719
Filing Date: 2016-06-14
CPC Classification: G01R,G03H

Claim Text:
1. An optical image detection method for enhancing time and spatial resolution in internal integrated circuit testing in at least one phase of evaluation and manufacture, using a first infrared or optical imaging device that is sensitive to an incident electron beam or ion beam or X-ray beam or ultraviolet illumination which stimulates a secondary electron emission or creates a photocurrent or changes in electric field or stresses within or acting upon the first imaging device, and a second infrared imaging device that is illuminated by light incident to the first imaging device which is reflected to the second imaging device which images optical changes in phase or polarization or amplitude or birefringence or intensity within the first imaging device, the method comprising: (a) imposing a first optical beam over an area comprising at least one of the following: an incident electron beam, an incident ion beam, or a X-ray beam or an optical illumination modulating the optical beam incident to the first imaging device; (b) adjusting the modulation of the incident optical beam relative to the duration or intensity or movement of the electron or ion beam or X-ray beam or an ultraviolet illumination to enhance the optical sampling time resolution of the first optical beam, or to examine the spatial attributes of a feature which is shaped or determined by the incident electron beam, or ion beam, or an incident ultraviolet illumination, or the effects thereof, (c) and, illuminating the second infrared imaging device by light incident to the first imaging device which is reflected to the second imaging device to image optical changes in phase or polarization or amplitude or birefringence or intensity within the first imaging device.