Minutes, IBIS Quality Committee

21 December 2010

11:00-12:00 EST (08:00-09:00 PST)

ROLL CALL

Cisco Systems:                * Mike LaBonte
Ericsson:                       Anders Ekholm
Green Streak Programs:          Lynne Green
Huawei Technologies:            Guan Tao
IBM:                            Bruce Archambeault
IOMethodology:                  Lance Wang
Mentor Graphics:                John Angulo
Micron Technology:              Moshiul Haque,
                                Randy Wolff
Nokia Siemens Networks:       * Eckhard Lenski
Signal Consulting Group:        Tim Coyle
Teraspeed Consulting Group:   * Bob Ross
Texas Instruments:              Pavani Jella

Everyone in attendance marked by *

NOTE: "AR" = Action Required.

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

Call for opens and IBIS related patent disclosures:

- No one declared a patent.

AR Review:

- Mike upload Anders' presentation
  - Done

- Anders update his presentation
  - No report

New items:

Upcoming IBIS Summit at DesignCON:
- Mike: What would we present?
- Bob: Anders' BIRD is probably not ready yet
  - We should keep the BIRD simple
  - Will tools automate 10 test fixtures?
  - In practice there will be 1 waveform at most
  - IC companies are not in the business of providing lots of waveforms
  - It could be complicated to get it in an IBIS file
- Mike: For the summit we could avoid discussing test fixtures
  - Or show just one that needs IBIS-ISS
- Bob: JEITA has 12 test fixtures
- Mike: We should go over those
- Bob: We have the JEITA presentation

Mike showed the JEITA Nov 15 summit presentation:
- http://www.eda.org/ibis/summits/nov10c/hamaji.pdf
- The test circuits are on pages 7 & 8
- Page 9 shows their flow
- Bob: We intend that users be able to test
- Mike: The EDA vendor should do the main testing
  - But users could have any HSPICE version, and need to test how
    it works with their main tool
  - Why does the chip vendor download golden data in this diagram?
- Bob: The question is, why is JEITA the source of the data?
- The JEITA web page would ask for personal info before downloading

Mike showed the JEITA EC Center web page:
- http://ec.jeita.or.jp
- Bob: They said it would be live by the end of 2010
  - There is a question about if they will hire someone to upload data

Discussion of agenda for our next meeting:
- It will be Jan 4
- We could continue discussion of test fixtures
- Mike: There are no differential circuits
- Eckhard: They do have high speed, low speed, and differential

Mike showed his PWL experiment:
- Bob: There is no C_comp for the driver
  - The results are pretty close
  - The differences might be numerical resolution issues
- Mike: The proposal might be to have PWL sources
  - It will not be in IBIS-ISS
- Bob: Anders could potentially present this
- Mike: Voltage errors of 3mV seem too large to be numerical artifacts
- Bob: The stair-stepped PWL data is not showing
- Mike: I need to make a spreadsheet with all data together

Next meetings:
- Next meetings Dec 21 and Jan 4

Jan 4 agenda:
- IBIS summit report
- JEITA quality plans
- Mike's PWL studies
- Anders' presentation

Meeting ended at 12:22 Eastern Time.