Patent ID: 9703207
Date: 2017-07-11
CPC Classifications: G01N,G03F

Claim:
1. An apparatus suitable for providing reduced dynamic range in patterned images, comprising: an illumination source; a set of illumination optics configured to direct light from the illumination source to a wafer disposed on a sample stage via an illumination path, wherein the sample stage is configured to translate the wafer along a selected direction at a selected rate; a spatial light modulator (SLM) disposed along the illumination path and configured to receive at least a portion of light emanating from the illumination source, the SLM further configured to selectably illuminate one or more portions of a surface of the wafer, wherein the SLM is arranged so as to direct light from ON-state pixels of the SLM to the surface of the wafer; a time delay and integration (TDI) detector configured to detect light emanating from the surface of the wafer; a control system communicatively coupled to the SLM, the control system configured to: