Patent ID: 11971370
Assignee: CANON ANELVA CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An inspection apparatus for inspecting an inspection target object, comprising:
an X-ray generation tube having a target including an X ray generation portion that generates X-rays by irradiation with an electron beam, and configured to emit X-rays to an inspection target surface of the inspection target object;
an X-ray detector configured to detect X-rays emitted from a foreign substance existing on the inspection target surface irradiated with the X-rays from the X ray generation portion and totally reflected by the inspection target surface;
an adjustment mechanism configured to adjust a relative position between the inspection target surface and the X-ray detector;
a measurement device configured to measure a position of the inspection target surface; and
a controller configured to control, based on an output of the measurement device, the adjustment mechanism so as to displace the X-ray detector toward or away from a plane defined by the inspection target surface, such that the X-ray detector detects the X-rays emitted from the foreign substance and totally reflected by the inspection target surface.