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2009
IEEE

Efficient compression and handling of current source model library waveforms

9 years 8 months ago
Efficient compression and handling of current source model library waveforms
—This paper describes a waveform compression technique suitable for the efficient utilization, storage and interchange of the emerging current source model (CSM) based cell libraries. The technique is based on pre-processing of a collection of voltage/current waveforms for the cells in the library and then, constructing an orthogonal time-voltage/time-current waveform basis using singular-value decomposition. Compression is achieved by representing all waveforms as linear combination coefficients of adaptive subset of the basis waveforms. Experimental results indicate that adaptive waveform representation results in higher compression ratios than the waveform representation as a function of fixed set of basis functions. Interpolation and further compression are obtained by representing the coefficients as simple functions of various parameters, e.g., input slew, load capacitance, supply voltage, and temperature. The methods introduced in this paper are tested and validated on several...
Safar Hatami, Peter Feldmann, Soroush Abbaspour, M
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where DATE
Authors Safar Hatami, Peter Feldmann, Soroush Abbaspour, Massoud Pedram
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