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Europäisches Patentamt

Method for shape classification of an object

Patentnummer:US10215560B2
IPC Hauptklasse:G01B002120
Anmelder:KLA-Tencor Corporation (0)
One Technology Drive, Milpitas, CA 95035, US
Erfinder:
Anmeldung:30.12.15
Offenlegung:24.03.15
Patenterteilung:26.02.19

Abstract / Hauptanspruch
A method for shape classification of an object is provided. Shape categories are provided which specify a plane and points therein relative to the object, and also specify at least one limit coordinate for each such point, the limit coordinate defining a boundary in a direction normal to the plane for the shape of the object considered in order for the object to be classified into a respective shape category. The shape categories can be provided by a user, making the method very flexible. The shape categories can in particular be derived from a set of samples of objects representing a shape category to be defined. For classification, the position of a surface of the object is measured at each of the points defined in the shape category, and the result is compared with the corresponding limit coordinate.

US10215560B2


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