An Essentially Non-Oscillatory (ENO) high-order accurate Adaptive table model for device modeling

Modern analytical device models become more and more complicated and expensive to evaluate in circuit simulation. Interpolation based table look-up device models become increasingly important for fast circuit simulation. Traditional table model trades accuracy for speed and is only used in fast-Spic...

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Veröffentlicht in:2004 41st Conference Design Automation S. 864 - 867
Hauptverfasser: Yang, Baolin, McGaughy, Bruce
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: New York, NY, USA ACM 07.06.2004
IEEE
Association for Computing Machinery
Schriftenreihe:ACM Conferences
Schlagworte:
ISBN:1581138288, 9781581138283, 1511838288
ISSN:0738-100X
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Zusammenfassung:Modern analytical device models become more and more complicated and expensive to evaluate in circuit simulation. Interpolation based table look-up device models become increasingly important for fast circuit simulation. Traditional table model trades accuracy for speed and is only used in fast-Spice simulators but not good enough for prime-time Spice simulators such as SPECTRE. We propose a novel table model technology that uses high-order essentially non-oscillatory (ENO) polynomial interpolation in multi-dimensions to guarantee smoothness in multi-dimensions and high accuracy in approximating i -- v/q --v curves. An efficient transfinite blending technique for the reconstruction of multi-dimensional tables is used. Interpolation stencil is adaptively determined by automatic accuracy control. The method has been proved to be superior to traditional ones and successfully applied in Spectre and Ultrasim for simulating digital, analog, RF, and mixed-signal circuits.
Bibliographie:SourceType-Conference Papers & Proceedings-1
ObjectType-Conference Paper-1
content type line 25
ISBN:1581138288
9781581138283
1511838288
ISSN:0738-100X
DOI:10.1145/996566.996796