Minutes, IBIS Quality Committee

18 Mar 2008

11-12 AM EST (8-9 AM PST)

ROLL CALL
  Adam Tambone
* Anders Ekholm, Ericsson
  Barry Katz, SiSoft
  Benny Lazer
  Benjamin P Silva
  Bob Cox, Micron
* Bob Ross, Teraspeed Consulting Group
  Brian Arsenault
* David Banas, Xilinx
* Eckhard Lenski, Nokia Siemens Networks
  Eric Brock
* Guan Tao, Huawei Technologies
  Gregory R Edlund
  Hazem Hegazy
  John Figueroa
  John Angulo, Mentor Graphics
  Katja Koller, Nokia Siemens Networks
  Kevin Fisher
* Kim Helliwell, LSI Logic
  Lance Wang, IOMethodology
  Lynne Green
* Mike LaBonte, Cisco Systems
  Mike Mayer, SiSoft
* Moshiul Haque, Micron Technology
  Peter LaFlamme
  Randy Wolff, Micron Technology
  Radovan Vuletic, Qimonda
  Robert Haller, Enterasys
  Roy Leventhal, Leventhal Design & Communications
  Sherif Hammad, Mentor Graphics
  Todd Westerhoff, SiSoft
  Tom Dagostino, Teraspeed Consulting Group
  Kazuyoshi Shoji, Hitachi
  Sadahiro Nonoyama

Everyone in attendance marked by *

NOTE: "AR" = Action Required.

-----------------------MINUTES ---------------------------
Mike LaBonte conducted the meeting.

Call for patent disclosure:

- No one declared a patent.

AR Review:

AR: Mike send updated IQ 1.1ad document
- Done

AR: Mike check status of JEITA response document
- Mike not sure on the details of this
- We will send in this in 3 weeks
  - Review comments accepted until then

AR: Mike invite Walter Katz to talk about measurements BIRDs
- TBD

New items:

Kim had trouble using Safari
- Firefox does not show participant list

Mike can not meet next week.
- The next meeting will be in 2 weeks.

IBIS correlation came up at the last IBIS Open Forum
- Suggested that the schedule for IQ section 6 be accelerated
- Anders:
  - BIRD 105 makes golden waveforms mandatory
  - these are not necessary for simulation
  - Ericsson has trouble getting IBIS features from vendors
  - Not needed for [Ramp]-only models
    - Mike: [Ramp]-only is becoming common for very fast interfaces
      - Donald Telian and Kumar have made this comment
    - Bob: some tools put rounding on the ramp corners
- David: often best to let market forces motivate models provided
  - Just "rounding the knee" of producing good correlation reports
  - offers an "escape", not a good report
  - Moshiul: agree
- David: IBIS already has waveforms
  - Mike: [Test Load] can have T-lines
  - Bob: not a generalized circuit language
- Bob: 
  - We need to focus on BIRD 105
  - how do we correlate?
  - Correlation reports are practical
- Anders: corr reports don't help me to verify
  - Mike: choice of simulator makes a difference
- David: What if this delays 5.0?
  - Bob: This might go into 5.1, or 5.0 if we approve as-is
  - David: 
- David: difficult to get IBIS process changes
- Mike: correlation reports test only one simulator
  - Bob: golden waveforms help here
- Mike: do golden waveforms account for [Driver Schedule]?
  - Bob: yes
  - Bob: if [Model Selector] used, would need waveforms for all
- Bob: perception that models are free
- Anders: Market forces are not enough
  - Hard to get vendors to provide our data needs
  - Mike: agree
    - [Voltage Range], for example
- David: Hard to design with all the guard banding from vendors
  - Anders: golden data can help find which simulator works best
- Mike: can we get agreement on correlation test fixtures?
  - Moshiul: it depends on the part
  - David: Xilinx wants to minimize board effects
    - 5 waveform feature set
    - Pick 1 demo board that has cleanest route (no vias, short, 50 ohms, etc.)
- Mike: s2ibis should generate [Test Data]
  - David: if you are "intercepting" s2ibis, it has to be done the same way
  - Bob: use s2i to generate decks, then have to modify
- Mike: Does any IBIS model tool produce GW?
  - no

- C_comp
  - David: is there a better approach than putting this into min & max
  - Bob: No, that was a mistake
- Bob: Guan has a presentation to give on correlation


Bob: make have jury duty

Next meeting:

01 Apr 2008 11-12 AM EST (8-9 AM PST)

Meeting ended at 12:19 PM Eastern Time.
