Minutes, IBIS Quality Committee

19 July 2011

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
                              * Greg Edlund
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:

- None

AR Review:

- Greg send checklist to be posted
  - Done

- Mike add a quail to correct open sink/source in IQ spec 5.6.2
  - Not done yet

- Bob conduct tests of parser behavior
  - No tests yet
  - Bob: Atul looked at this
    - To the parser they are all top level items
  - Mike: The parser doesn't check for unreferenced [Test Load]
    - An FBGA IBIS file has [Test Load] keywords only
    - Maybe this is to document a sophisticated timing test load
  - Bob: A bug could be written for the parser to check that

New items:

Mike reported that the Test Keyword Clarification BIRD is submitted:
- It was on the last Open Forum agenda, but we didn't get to it

Mike briefly described the IQ group history

Mike showed the AMI Quality Checklist posted by Greg Edlund:
- Mike: What is item 7 in the first list? "Placeholder for DLL checks"
- Greg: We need to check the DLL itself

- Mike: Are AMI models being shipped with insufficient documentation?
- Greg: Some, but it has gotten better
- Eckhard: They should document the compatible operating systems
- Mike: There might someday be issues like .net package requirements

- Bob: Item 1 in Model-to-Hardware Correlation could be clarified.
- Mike: Does that hardware feature exist?
- Greg: Yes, fairly common
- Mike: It would be good to use this for simulation checks
- Greg: Agilent has tried that

Mike showed a new presentation version of the External Test proposal:
- Bob: The "dot" format for nodes is from EBD
- Mike: I think [External Model] has something similar

Mike showed the previous text version of the proposal:
- The [Test Circuit] keyword embeds multiple SPICE lines
- Mike: This was considered too flexible and complicated
- Bob: Because we are using SPICE it should be by position not name
  - We also should address global ground
- Mike: Simulators will refuse to simulate if nothing is connected to node 0
- Lance: An IBIS buffer will work without GND
- Bob: There is an assumed GND inside it
  - This example is establishing M for models and P for probes
  - The rules will all have to documented
- Mike: I could add an example that uses a straight X call

Next meetings:
- Next meetings July 26 and Aug 2

July 26 agenda:
- External Test

Meeting ended at 12:12 Eastern Time.