Minutes, IBIS Quality Committee

12 May 2009

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
  Huang Chunxing, Huawei Technologies
  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
  Muniswarareddy Vorugu, ARM Ltd
* Pavani Jella, TI
  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
  Liqun, Huawei

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:

- Mike look into MeetingPlace issues
  - This is a WebEx meeting now
  - Some had difficulties getting in:
    - Web sharing crashed the first time for Anders
    - Bob had to click Attend Meeting, did not see it at first
    - Mike: There should be a URL to go straight to Attend

New items:

Continued review of the IQ 1.1 specification:

5.5.3.	{LEVEL 2}  [Ramp] dV consistent with supply voltages
- Mike: Not sure if we decided last time to delete 5.5.3
- Anders: We discussed this 2 meetings ago
  - 5.5.3 is much easier to check than 5.5.4
  - Mike: But both are needed to achieve level 2
- Mike: We will eventually drop 5.5.4 when IBISCHK implements it
- Anders: Are we requiring software to perform these checks?
- Mike: We could drop 5.5.4 from IQ now and immediately file a bug report
- Bob: We could note that a more rigorous check will appear in IBISCHK
- Vote: Should we drop 5.5.3 and keep 5.5.4?
  - Anders: yes
  - Bob: yes
  - Guan: yes
  - Mike: yes
  - Pavani: yes
- We voted to remove the 5.5.3 check

5.5.4.	{LEVEL 2}  [Ramp] dV consistent with V-T table endpoints
- We change the title of this and completely replaced the contents:
5.5.4.	{LEVEL 2}  [Ramp] dV consistent with I-V table calculations
- Bob: We can explain the workaround method to have IBISCHK calculate V
- Anders: What will IBISCHK say about the temporary waveforms?
  - Will it find other issues?
  - Bob: No, IBISCHK doesn't make that many checks
- Mike: The two temporary waveform points could both be -1V
  - Bob: Only one point has to be wrong to make IBISCHK print voltages
- Bob: Unfortunately the values are printed with only 2 decimal digits
  - There are techniques to find the real value

We added a third paragraph to 5.5.4:
- We immediately removed it because the 2nd paragraph covers that

5.5.5.	{LEVEL 2}  [Ramp] dt is consistent with 20%-80% crossing time
- We added a 2nd paragraph to explain waveform selection criteria
- Bob: It only applies if the right waveform is present
  - We should call for an alternative dt reference if none
- We added a sentence for this

After deleting 5.5.3, 5.5.4 and 5.5.5 became 5.5.3 and 5.5.4

Next meeting: 19 May 2009 11-12 AM EST (8-9 AM PST)

Meeting ended at 12:04 PM Eastern Time.