Minutes, IBIS Quality Task Group

11 February 2020

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

ROLL CALL

Intel Corp.                         Michael Mirmak
Mentor, a Siemens Business          Arpad Muranyi
Micron Technology                 * Randy Wolff
Signal Integrity Software:        * Mike LaBonte
SPISim                              Wei-hsing Huang
Teraspeed Labs:                   * Bob Ross
Zuken USA:                        * Lance Wang

Everyone in attendance marked by *

NOTE: "AR" = Action Required.

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

Call for IBIS related patent disclosures:

- None

Call for opens:

- None


Review of previous meeting minutes:
Minutes from the February 4 meeting were reviewed.  Lance Wang moved to approve the minutes.
Bob Ross seconded.  Without objection the minutes were approved.


ARs:
AR Mike LaBonte to add IBISCHK7.0.1 for MacOS
  - Mike has not had access to a Mac setup with Xcode compiler.
AR Bob Ross to get developer quote for IBIS-ISS parser
  - No response yet


IBISCHK7 source code license:
Bob Ross reported that 8 of 9 expected payments had been received.
The last was received Jan 31.


New IBISCHK bugs:
Bob Ross said Michael Mirmak had reported a [Model Selector] issue.  Bob deemed it to
not be a problem. Model Selector was a top level keyword, although that is not 100%
clear in the IBIS specification.  Randy Wolff noted that a Model Selector had been
placed in the middle of a Component in the bug testcase.  Bob was not sure whether
to post the bug report.  We decided it should be posted.  Bob said [Model Selector]
was introduced by BIRD 30.2.

BUG207:
Randy Wolff summarized the history of BUG207.  There was a risk of "breaking" existing
models if a new check was added.  Randy and Bob Ross had agreed to deem it not a bug.
Lance Wang felt it was a bug.  He said the model plus its Submodels represented the whole
data set for the model.  If Submodel was used the set should still be required to match
V-T data.  Randy noted that the curves switched in and out. A simulator can handle that
but IBISCHK simply looks at the top model.  Lance said he did not use Submodel very much,
partly because simulators differed.  Mike asked if a warning should be issued instead
of an error in the case where Submodels or driver schedule were present.  Bob said
driver schedule was different, this issue was only about Submodel.  He said there was
a workaround except for one rare case, where receiving and driving modes differed.
Bob felt the status should be NOT A BUG.  This would be proposed at the next Open Forum.


IBIS-ISS parser:
Discussion was tabled.


Bob Ross moved to adjourn. Lance Wang seconded. Without objection the meeting ended.

Meeting ended: 11:34 ET

Next meeting February 18, 2020