[IBIS-Users] Hspice ibischk4 tool

The latest version of Synopsys Hspice, version 2004.09, uses the
ibischk4 tool, version 4.0.1. In a simulation I ran yesterday, Hspice
reported errors running the v4.0.1 ibischk4 with the rising and falling
waveforms when using an IBIS model as a driver.

Here's a sample of the errors:

ERROR - Model osoc2_od: The [Rising Waveform]

      with [R_fixture]=60 Ohms and [V_fixture]=3.3V

      has TYP column DC endpoints of 2.02V and 3.30v, but

      an equivalent load applied to the model's I-V tables yields

      different voltages ( 2.02V and 2.02V),

      a difference of inf% and inf%, respectively.

ERROR - Model osoc2_od: The [Falling Waveform]

      with [R_fixture]=60 Ohms and [V_fixture]=3.3V

      has TYP column DC endpoints of 2.02V and 3.30v, but

      an equivalent load applied to the model's I-V tables yields

      different voltages ( 2.02V and 2.02V),

      a difference of inf% and inf%, respectively.

An engineer at the device manufacturer said there are no errors when he
uses the ibischk4 v4.0.2 tool. Can someone explain what the differences
are between versions 4.0.1 and 4.0.2 of the ibischk4 tool and does
anyone know whether Synopsys will be moving to the latest ibischk4 tool
in the Hspice simulator?

Thanks and regards,

Fabrizio Zanella

Signal Integrity

Enterasys Networks

Andover, MA

Phone: 978-684-1340

fzanella@enterasys.com

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Received on Wed Dec 15 06:57:01 2004