Test structures for estimating dishing and erosion effects...

Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design

Reexamination Certificate

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C438S011000, C257S048000

Reexamination Certificate

active

10490908

ABSTRACT:
A test structure combines a first structure (1010) for erosion evaluation with a second structure (1000) for extraction of defect size distributions. The first structure (1010) is a loop structure usable determine a resistance value that varies with metal height. The second structure is a NEST structure (1000). Loop lines of the loop structure (1010) are connected on both sides of the NEST structure (1000).

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