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 This meeting was conducted in accordance with the EIA Legal Guides and EIA Manual of Organization and Procedure. The following e-mail addresses are used: majordomo@eda.org In the body, for the IBIS Open Forum Reflector: subscribe ibis In the body, for the IBIS Users' Group Reflector: subscribe ibis-users Help and other commands: help ibis-request@eda.org To join, change, or drop from either the IBIS Open Forum Reflector (ibis@eda.org), the IBIS Users' Group Reflector (ibis-users@eda.org) or both. State your request. ibis-info@eda.org To obtain general information about IBIS, to ask specific questions for individual response, and to inquire about joining the EIA-IBIS Open Forum as a full Member. ibis@eda.org To send a message to the general IBIS Open Forum Reflector. This is used mostly for IBIS Standardization business and future IBIS technical enhancements. Job posting information is not permitted. ibis-users@eda.org To send a message to the IBIS Users' Group Reflector. This is used mostly for IBIS clarification, current modeling issues, and general user concerns. Job posting information is not permitted. ibischk-bug@eda.org To report ibischk2/3 parser bugs. The Bug Report Form Resides on eda.org in /pub/ibis/bugs/ibischk/bugform.txt along with reported bugs. To report s2ibis, s2ibis2 and s2iplt bugs, use the Bug Report Forms which reside under eda.org in /pub/ibis/bugs/s2ibis/bugs2i.txt, /pub/ibis/bugs/s2ibis2/bugs2i2.txt, and /pub/ibis/bugs/s2iplt/bugsplt.txt respectively. Information on IBIS technical contents, IBIS participants, and actual IBIS models are available on the IBIS Home page found by selecting the Electronic Information Group under: http://www.eigroup.org/ibis/ibis.htm Check the pub/ibis directory on eda.org for more information on previous discussions and results. Logins using anonymous FTP are accepted.