Subject: [IBIS] Open forum minutes (08/08/03)
From: rrwolff@micron.com
Date: Thu Aug 14 2003 - 07:27:15 PDT
DATE: 8/14/03
SUBJECT: August 8, 2003 EIA IBIS Open Forum Meeting Minutes
VOTING MEMBERS AND 2003 PARTICIPANTS LIST:
Ansoft Corporation (Eric Bracken)
Apple Computer Kim Helliwell
Applied Simulation Technology Fred Balistreri
Cadence Design Lynne Green*, Lance Wang
Cisco Systems Syed Huq, Michael LaBonte,
Val Mandruson, Hung Pham,
Todd Westerhoff
Fairchild Semiconductor (Graham Connolly)
Hitachi ULSI Systems Kazuyoshi Shoji
Intel Corporation Stephen Peters, Michael Mirmak*,
Arpad Muranyi*, Eric Magnusson
LSI Logic Frank Gasparik*
Matsushita (Panasonic) Atsuji Ito
Mentor Graphics [Bob Ross], Ian Dodd, Guy de Burgh*,
John Angulo*, Mike Donnelly, Weston Beal
Micron Technology Randy Wolff*
Molex Incorporated Gus Panella
Motorola (Rick Kingen)
National Semiconductor [Milt Schwartz], [Tim Coyle]
NEC Electric Corporation (Itsuki Yamada)
Philips Semiconductor (D.C. Sessions), Stephanie Goedecke
Siemens (& Automotive) AG Eckhard Lenski, Michael Kindij,
Burkhard Muller, Katja Koller,
Andre Goerisch, Manfred Maurer,
Bernard Unger, Amir Motamedi,
Hartmut Ibowski, Gerald Bannert
Signal Integrity Software Bob Haller, Barry Katz, Doug Burns
Sigrity [Raj Raghuram]
Synopsys Warren Wong, Edmund Cheng
Texas Instruments Thomas Fisher
Teraspeed Scott McMorrow, Tom Dagostino,
Kevin Simpson, Bob Ross*
Time Domain Analysis Systems Dima Smolyansky, Steve Corey
Zuken (& Incases) Michael Schaeder, Ralf Bruening
OTHER PARTICIPANTS IN 2003:
Agilent Technologies Herbert Lage
Brocade Frank Yuan, Yongrue Yu
Conexant Gary Felker
EADS CCR Alix de la Villeguerin
EFM Ekkehard Miersch
EMC Corporation Brian Arsenault, John Fernandez,
Simba Julian
Fraunhofer IZM Ege Engin
Fujitsu Tadashi Arai
GEIA (Chris Denham)
Huawei Technologies (Jiang Xiang Zhong)
Independent Kelly Green, Luca Giacotto
Infineon Tech AG Christian Sporrer
Marvell Semiconductor Itzik Peleg
NetLogic Microsystems Eric Hsu
North East Systems Associates Edward Sayre
North Carolina State Univ. Ambrish Varma*
Plexus Joseph Socha
Politechnico de Torino Igor Stievano
Qlogic Larry Barnes
Sintecs BV Hans Klos, Bob te Nijenhuis
SiQual (Rob Hinz)
Sun Microsystems Tim Coyle*
Via Technologies (Weber Chuang)
Xilinx Susan Wu
In the list above, attendees at the meeting are indicated by *. Principal
members or other active members who have not attended are in parentheses.
Participants who no longer are in the organization are in square brackets.
Upcoming Meetings: The bridge numbers for future IBIS teleconferences are
as follows:
Date Bridge Number Reservation # Passcode
August 22, 2003 1-916-356-2663 4 696-0504
All meetings are 8:00 AM to 9:55 AM Pacific Time. Meeting agendas are
typically distributed seven days before each Open Forum. Minutes are
typically distributed within seven days of the corresponding meeting.
When calling into the meeting, provide the reservation number and
passcode at the automated prompts. If asked by an operator, please
request to join the IBIS Open Forum hosted by Michael Mirmak.
NOTE: "AR" = Action Required.
-------------------------------- MINUTES -----------------------------------
INTRODUCTIONS AND MEETING QUORUM
Ambrish Varma of North Carolina State University introduced himself. He
is a Ph. D. candidate currently involved in research related to IBIS and
is developing the S2IBIS3 IBIS model generation software.
CALL FOR PATENTS
Michael Mirmak called for any patents or pending patents related to the
IBIS Version 4.0, 4.1 or ICM specifications. No companies declared a patent.
MEMBERSHIP UPDATE AND TREASURER'S REPORT
Michael Mirmak reported that membership remains at 25 organizations. A
minor problem with one company's GEIA invoice has been resolved and
all payments are expected to be complete shortly.
REVIEW OF MINUTES AND AR'S
The July 18 meeting minutes were approved without objection.
MISCELLANY/ANNOUNCEMENTS
No new announcements.
PRESS AND WEB PAGE UPDATES
Bob Ross reported that Syed has completed a first revision of the
on-line IBIS roster. Most member companies and organizations have
provided updated information.
NEW MODELS AVAILABLE, LIBRARY UPDATE
No update.
OPENS FOR NEW ISSUES
Tim Coyle raised some concerns regarding the IBIS web pages. While the
information there is useful, the most recent article is from 2000 and
none of the information is searchable. More current technical and
application notes from specific companies are not available. Tim
proposed more active cross-referencing of papers and other company-
specific links, if not creating a new domain for the IBIS community. Bob
Ross noted that the EIA controls the eigroup.org web site and that access
and updating is limited for security reasons. Michael requested that Tim
work with webmaster Syed Huq on either updating the current site per Tim's
suggestions, or creating a new web domain.
INTERNATIONAL/EXTERNAL PROGRESS
- IEC 62014-3 (ICEM) Integrated Circuit Electromagnetic Model Proposal
(formerly, IEC 93/67/NP IBIS and EMC Simulation)
No update.
- JEDEC Activity Report.
No update.
DATE/PCB EAST SUMMIT DISCUSSION
Lynne Green reported that a draft call for papers has been prepared and
is ready for distribution in mid-August. Michael Mirmak described his
conversation with Ed Sayre of NESA and reported that NESA has no
objection to hosting a summit at NESA on Tuesday, October 21.
Confirmation of the details has not yet been received, however. Michael
accepted the AR to confirm room and refreshment/lunch arrangements with
Kathy Breda of NESA.
DESIGNCON SUMMIT DISCUSSION
Michael Mirmak reported that he spoke with Brock Silvey of DesignCon
2004. The contract and logistical arrangements for an IBIS Summit
at DesignCon 2004 are nearly complete, though some issues regarding
refreshments still remain to be resolved. A draft co-sponsorship
agreement has been received and is being reviewed by the Open Forum
officers. The summit is tentatively scheduled for Monday, Feb. 2, 2004.
IBIS VERSION 4.0 PARSER FUNDING AND STATUS
Michael Mirmak reported that all invoices for the 4.0 parser have been
distributed and confirmed received. Payment from one remaining organization
is expected shortly.
A beta version of IBISCHK4 has been compiled and is available for download:
http://www.vhdl.org/pub/ibis/ibischk4_beta
IBIS QUALITY COMMITTEE
Bob Ross reported that meetings continue every two weeks.
IBIS MODEL REVIEW COMMITTEE
Lynne Green reported that no new models have been received by the
committee since the last Open Forum meeting.
NEW ADMINISTRATIVE ISSUES
No new issues.
S2IBIS3
Ambrish Varma noted that he has created a publicly-available website
for the S2IBIS3 project:
http://www.ece.ncsu.edu/erl/ibis/s2ibis3/s2ibis3.htm
Feedback on the current beta version is appreciated and encouraged.
Ambrish also mentioned that he and Bob Ross have been recently working on
debugging support of the [Series MOSFET] keyword. The current version of
the software supports, under Java, all the S2IBIS2 version 2.1 commands
except [Summarize]. Previously noted issues with print resolution have
been addressed and more comprehensive version control will be implemented.
BIRD74.5 - EMI Parameters
Guy de Burgh introduced the updated text of BIRD74.5. He described
six minor changes suggested to him via e-mail since the last review;
these include:
- explicitly stating that the "Domain" and "Cpd" subparameters and
arguments are not required and may be omitted
- changing the phrase "The keyword takes one argument" under
"Heatsink_cap" to "The sub-parameter takes one argument"
- requiring the "domain_name" column for [Pin EMI] to help the
parsing of the columns, even if the data is NA
- using the word "maximum" in place of "dominant" for the
description of the clock division sub-parameter
- clarifying that [Begin EMI Model] and [End EMI Model] must occur
after the [Model] keyword with which they are associated; similar
rules would apply to EMI keywords related to [Component]
- a global change of "sub-parameter" to "subparameter"
Guy accepted all suggested changes and noted that these do not affect the
technical content of the BIRD. Some discussion arose regarding the
version in which this BIRD is to be included. Bob Ross suggested that the
BIRD become part of the next major release, likely to be IBIS 5.0.
The BIRD was approved as amended by a vote of four in favor with
one opposed. The text will be posted with changes as BIRD74.6.
BIRD82.1 - Clarification of Clamp Tables
Bob Ross noted that BIRD82.1 has been posted and distributed for
consideration at the next IBIS Open Forum meeting.
IBIS VERSION 4.1 DISCUSSION
A discussion was held regarding C_comp and [Ramp], and their relationship
to the multi-lingual extensions proposed as part of IBIS 4.1. Lynne Green
and John Angulo noted that several tools use the [Ramp] keyword as an
approximate slew rate, for efficient automated prioritization of SI
problems. This data is also useful for setting initial simulation engine
timesteps and therefore improve simulation efficiency. C_comp was
considered less strongly needed as a required parameter. At present, both
keywords are considered optional when multi-lingual extensions are
correctly used in an IBIS file. Arpad Muranyi observed that [Ramp] data,
being single-ended, may not apply for differential waveforms or may imply
behaviors outside of the normal operation of the device being modeled.
John Angulo proposed that a BIRD be written to include a new keyword,
[Slew Time] or similar, which would enable tools to set initial timesteps
without requiring the [Ramp] keyword. Open issues include whether this
is a subparameter under the [External Model] and/or [External Circuit]
keywords and whether both [Ramp] and [Slew Time] may exist in the same
model. John will provide draft BIRD language at a future Open Forum
meeting.
A draft version of IBIS version 4.1 is available on the web. Both an
ASCII text and an Adobe PDF version are available at:
http://www.vhdl.org/pub/ibis/wip/
IBIS ICM SPECIFICATION REVIEW
Michael Mirmak reintroduced the ICM specification and called for comment.
He mentioned that, with most comments and feedback noted, a vote on
approval will be scheduled for Sept. 12.
IBISCHK4 & BUG TRACKING STATUS
Bob Ross reminded the Open Forum that a beta version of IBISCHK4
is available at:
http://www.vhdl.org/pub/ibis/ibischk4_beta
Bob also reported that all BUGS except 68, 71, 73, 75 and 76 have been
addressed and fixed in the beta IBISCHK4 parser code. These are now
listed as "Closed" on the IBIS web site. BUG80, which has not been
classified, retains its 3.2 behavior in the beta code.
John Angulo noted that he has compared the Windows output running the
test cases sent by Atul Agarwal against Atul's reference outputs, and found
only minor differences. Further work will be completed separately by Bob,
John, and Michael Mirmak.
BUG80 - [Model Selector] and [Diff Pin] Ordering
Classification of BUG80 was postponed until the next Open Forum meeting.
NEXT MEETINGS:
By acclamation, the next teleconference has been scheduled for August 22,
one week earlier than usual, to accommodate the upcoming US holiday.
The meeting will be held from 8:00 AM to 10:00 AM Pacific Daylight Time.
============================================================================
NOTES
IBIS CHAIR: Michael Mirmak (916) 356-4261, Fax: (916) 377-1046
michael.mirmak@intel.com
Senior Analog Engineer, Intel Corporation
M/S FM6-45
1900 Prairie City Rd.
Folsom, CA 95630
VICE CHAIR: Lynne Green (425) 788-0412, Fax (425) 451-1871
lgreen@cadence.com
Senior Modeling Engineer, Cadence Design Systems
320 120th Ave NE, Suite B-103, Bellevue, WA 98005-3016
SECRETARY: Randy Wolff (208) 363-1764, Fax: (208) 368-3475
rrwolff@micron.com
Simulation Engineer, Micron Technology, Inc.
8000 S. Federal Way
Mail Stop: 1-711
Boise, ID 83707-0006
LIBRARIAN: Roy Leventhal (847) 590-9398
roy.leventhal@ieee.org
Consultant, Leventhal Design and Communications
1924 North Burke Drive
Arlington Heights, Illinois 60004
WEBMASTER: Syed Huq (408) 525-3399, Fax: (408) 526-5504
shuq@cisco.com
Manager, Hardware Engineering, Cisco Systems
170 West Tasman Drive
San Jose, CA 95134-1706
POSTMASTER: John Angulo (425) 497-5077, Fax: (425) 881-1008
John_angulo@mentor.com
Development Engineer, Mentor Graphics
14715 N.E. 95th Street, Suite 200
Redmond, WA 98052
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