Minutes, IBIS Quality Task Group

5 July 2022

12:00-13:00 Eastern Time (09:00-10:00 Pacific Time)

ROLL CALL

ANSYS                               Curtis Clark
Cadence Design Systems              Yingxin Sun
Intel Technology                    Michael Mirmak
MathWorks                          [Mike LaBonte]
Micron Technology                 * Randy Wolff
SAE ITC                             Michael McNair
Siemens EDA                       * Weston Beal
Teraspeed Labs                    * Bob Ross
unaffiliated                        Mike LaBonte
Zuken USA                         * Lance Wang

Everyone in attendance marked by *

NOTE: "AR" = Action Required.

-------------------------------  MINUTES  -------------------------------------
Bob Ross conducted the meeting.

Call for IBIS related patent disclosures:

- None


Call for opens:

- None 


Review of previous meeting minutes:
Minutes from the 28 JUN 2022 meeting were reviewed. Lance Wang moved to approve the minutes. Weston Beal seconded. Without objection the minutes were approved.


AR review:
 - Bob  asked Mike Labonte if he is willing to compile the V2.0.2 tschk2 for
   Windows, Linux, and Unix. Mike's reply was that he doesn't have the tools
   necessary for a full release.
 - Bob sent the draft5 contract for IBISCHK V7.1.1 to Jose Godoy and it was
   approved. Bob sent the contract to the developer for a quote of the cost.
 - Lance Wang looked for some power-aware IBIS examples for discussion of the
   quality checklist. 

New ARs:
 - Lance Wang to look for some power-aware IBIS examples for discussion of the
   quality checklist. 
 - Randy Wolff to look for some power-aware IBIS examples for discussion of the 
   quality checklist. 


NEW ITEMS:

Bob recommends that we talk to Atul about an updated tschk2 to include bug5. 
The fix was provided by Mic Schaeder, but we need a developer to create a full 
release. Bob proposed to wait on this issue in order to not have 2 checkers 
(ibischk and tschk) in development at the same time. Weston recommended that we 
wait until the checker has an actual bug rather than only this enahancement 
labeled as bug5.

The group continued discussion of the quality checklist regarding power-aware 
aspects. Lance recalls an error in power-aware models where some developer 
connected the power node to one rail instead of two. The composite current in 
this case is not correct.

Randy pointed out an exmaple file for discussion of power-aware effects. 
https://urldefense.proofpoint.com/v2/url?u=https-3A__ibis.org_ver7.0_micron-5Fver7-5Finterconnect-5Fexamples-5Fupdated.zip&d=DwIGAg&c=nKjWec2b6R0mOyPaz7xtfQ&r=DcQR-qLpQg5lIreuM6-NYECRIAFXt268PRNS5WO043M&m=RLdcRdVYW5qqqDVws9bLY0BVcsj3CP1-qwQciS48Bm_oihA3ArqHcHa4JUcEDM9q&s=65WIaRgX6D3SFBKZKB1H-VEV4VROAwIBg2l9NNN-lz0&e= 

The task group continued the discussion of quality items specifically 
regarding the Composite Current tables. Randy showed an example of a good model 
in which the composite current flucuated before the rising and falling 
waveforms did. This effect represents the switching of the pre-driver. The 
checklist should include a description of this time-domain effect.

Tabled topics (no discussion without motion):
  - IBISCHK security fixes

Randy moved to adjourn. Lance seconded. Without objection the meeting ended.

Meeting ended: 12:58 ET

Next meeting 12 JUL 2022