Global shape definition method for scatterometry

Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system

Reexamination Certificate

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Details

C702S040000, C700S121000, C382S151000

Reexamination Certificate

active

07613598

ABSTRACT:
A method for modeling samples includes the use of control points to define lines profiles and other geometric shapes. Each control point used within a model influences a shape within the model. Typically, the control points are used in a connect-the-dots fashion where a set of dots defines the outline or profile of a shape. The layers within the sample are typically modeled independently of the shape defined using the control points. The overall result is to minimize the number of parameters used to model shapes while maintaining the accuracy of the resulting scatterometry models.

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