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Post-Layout Simulation<br />

SPEF Backannotation<br />

SPEF Backannotation<br />

The SPEF (Standard Parasitic Exchange Format) standard for backannotation, defined by IEEE<br />

Std 1481-1999, is supported. The syntax is different from DSPF, but the processing is the same,<br />

Eldo “translates” the SPEF format into DSPF and sends the parasitics to the DSPF-annotation<br />

flow to achieve the SPEF-annotation.<br />

Use the .SPEF_INCLUDE command to perform SPEF parasitic backannotation.<br />

SPEF File Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399<br />

SPEF File Example for Corners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401<br />

398<br />

Eldo® User's Manual, 15.3

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