Re: [SI-LIST] : Bad IBIS models!

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From: Stephen Nolan (s-nolan1@ti.com)
Date: Wed Mar 15 2000 - 14:36:07 PST


SI-List,

What, exactly would be the QC steps that you would like to see component vendors
ensure that their models pass, prior to release?

What I've gleaned so far:

- Validate to IBISCHK3 and document exceptions to warnings.

- Validate all curves with a visual graphing for discontinuity, or other
visually obvious errors.

- Validate that the VI curves pass through origin.

- Verify that a full pin map exists and is accurate against datasheet.

- Verify that all models exist.

- Validate accuracy of package parastics.

- Validate accuracy of dV/dt. Use 50 ohm load or datasheet load?

- Include and validate accuracy of C_comp, including min and max.

- Include 4 VT curves minimum. Use 50 ohm load or datasheet load?

- Include accurate Min, Typ, Max data, derived from a setup that has full
variation across PVT.

What else? Thanks.

-- 
Regards,
Stephen M. Nolan

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