As we enter the curvilinear mask and multi-beam writer era, a new fracture engine is needed. In this presentation we introduce an innovative fracture engine called SmartFracture. The new engine can handle the Bezier curves natively, which enables high accuracy and smaller output file size. We will explore the characteristics of Bezier curve data representation and full chip results with the new engine.
KEYWORDS: Photomasks, Data processing, Data conversion, Semiconductor manufacturing, Manufacturing, Data storage, Associative arrays, Product engineering, Data modeling, Lithography
Since the introduction of OASIS 1.0, the OASIS file format has gradually become adopted across the semiconductor
manufacturing industry for advanced technology nodes. However, within the range of possible OASIS format options,
choices made during file creation can result in inefficiencies in mask data processing. This paper starts by pointing out
the relation between generating OASIS files and mask data preparation runtime. We then present some strategies and
methodologies on generating well-behaved OASIS files. We conclude with some comments on the OASIS standard for
the future.
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