Patent ID: 9646372
Date: 2017-05-09
CPC Classifications: G01N,G06T,H04N

Claim:
1. A device for the inspection of an entire inspection range of a wafer or another flat object, said wafer or said object having a plane object surface comprising said entire inspection range, said device comprising: an object holder; a camera assembly with two or more cameras each for taking an image of at least a portion of said object in an imaging field; a driving assembly for the generation of a rotational movement between said camera assembly and said object from a first imaging position to at least one further imaging position; wherein said portions of said object each imaged by a different one of said cameras are at least partly different; wherein all of said cameras together simultaneously detect only a portion of said entire inspection range; wherein each object point of said entire inspection range is imaged at least once by one of said cameras due to said rotational movement between said camera assembly and said object; wherein said object, said object holder, or said camera assembly is rotatable about an axis perpendicular to said plane object surface; and wherein said image of said imaging fields of different of said cameras taken in different imaging positions are assembled to a common overall image.