DATE: 4/22/02 SUBJECT: April 19, 2002 EIA IBIS Open Forum Meeting Minutes VOTING MEMBERS AND 2002 PARTICIPANTS LIST: 3Com (& CommWorks) [Roy Leventhal], James Goshorn Ansoft Corporation (Eric Bracken) Apple Computer Kim Helliwell Applied Simulation Technology Fred Balistreri, Norio Matsui Avanti (Hailong Wang) Cadence Design Lynne Green* Cisco Systems Syed Huq, Abdulrahmun Rafiq, Zhiping Yang Cypress Semiconductor (Rajesh Manapat) EMC Corporation (Brian Arsenault) Fairchild Semiconductor Adam Tambone Huawei Technologies (Rachild Chen) IBM Greg Edlund*, Pravin Patel* Innoveda John Angulo*, Guy de Burgh* Intel Corporation Stephen Peters*, Arpad Muranyi*, Will Hobbs, Pete Block, Ben Silva, Tony Lewis* LSI Logic [Larry Barnes], Frank Gasparik* Mentor Graphics Bob Ross*, Ian Dodd, Mike Donnelly, Matt Hogan, Sherif Hammad Micron Technology Randy Wolff Mitsubishi (Tom Cao) Molex Incorporated Gus Panella Motorola Rick Kingen National Semiconductor Milt Schwartz* NEC Corporation (Akimoto Tetsuya) North East Systems Associates (Edward Sayre) Philips Semiconductor (D.C. Sessions) Quantic EMC (Mike Ventham) Siemens (& Automotive) AG Helmut Katzier Signal Integrity Software Barry Katz*, Walter Katz, Robert Moles, Daniel Nilsson, Kevin Fisher, Steve Coe, Wiley Gillmor, Douglas Burns, Eric Brock, Sigrity Raj Raghuram SiQual Scott McMorrow, Dave Macemon, Rob Hinz Texas Instruments Thomas Fisher, (Jean-Claude Perrin) Time Domain Analysis Systems Steve Corey, Dima Smolyansky Tyco Electronics (Tim Minnick) Via Technologies (Weber Chuang) Zuken (& Incases) (Michael Schraeder) OTHER PARTICIPANTS IN 2002: Actel Prabhu Mohan Apt Software Atul Agarwal Brocade Communications Robert Badal Compaq Shafier-ur-Rahman EIA Cecilia Fleming Matsushita (Panasonic) Atsuji Ito National Institute of Applied Sebastian Calvet (& Motorola) Science (INSA) Northrup (Litton) Robert Bremer Shindengen Elecric Mfg. Co. Tsuyoshi Horigome TDK Yoshikazu Fujishiro Xilinx Susan Wu, J.L. de Long Independent Larry Barnes, Roy Leventhal* 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 May 10 1-888-316-5901 N/A 6874860 (International Dial-in 1-617-801-9781) May 31 1-888-316-5901 N/A 3778497 (International Dial-In 1-617-801-9781) All meetings are 8:00 AM to 9:55 AM Pacific Time. We try to have agendas out 7 days before each Open Forum, and meeting minutes out within 7 days after. When you call into the meeting, ask for the IBIS Open Forum hosted by Stephen Peters and give the reservation number and passcode. NOTE: "AR" = Action Required. -------------------------------- MINUTES ----------------------------------- INTRODUCTIONS AND MEETING QUORUM No new members. MEMBERSHIP UPDATE AND TREASURER'S REPORT Stephen Peters reported that EIA has received payments from 25 companies, and we are awaiting payment from several more. This is out of a total of 37 invoices sent. Stephen estimates that we will have up to 28 paid members this year. Bob Ross reported no update from EIA on the final financial statement from 2001. We believe our numbers are solid, we will carry them through. REVIEW OF MINUTES AND AR'S The minutes from the March 29, 2002 teleconference were approved without change. The ARs were discussed during the meeting. MISCELLANY/ANNOUNCEMENTS None. PRESS AND WEB PAGE UPDATES None. NEW MODELS AVAILABLE, LIBRARY UPDATE Bob Ross provided some new links: Maxim Integrated Products (former Dallas Semiconductor IBIS Models) http://dbserv.maxim-ic.com/mcm/ibis.cfm Roy Leventhal stated that he is planning another update to the library page. OPENS FOR NEW ISSUES Roy Leventhal wished to discuss a proposal from the IBIS Quality committee regarding the IBIS Golden Parser. Stephen Peters added this to the agenda under the Quality Committee discussion. INTERNATIONAL/EXTERNAL PROGRESS - IEC 62014-3 (ICEM) Integrated Circuit Electromagnetic Model Proposal (formerly, IEC 93/67/NP IBIS and EMC Simulation) - Stephen Peters and Bob Ross still have the action item to review the specification, and Stephen encouraged others to do so as well. - JEDEC JC-16 - Modeling and Testing - No report. - T10, Project 1414-DT - SCSI Signal Modeling (a Technical Committee of the National Committee for Information Technology (NCITS)) - No report. DESIGN AUTOMATION CONFERENCE 2002 IBIS SUMMIT MEETING PLANNING Bob Ross announced that the IBIS Summit Meeting at the Design Automation Conference (DAC2002) will be held on Thursday, June 13, 2002 at the Hilton Hotel in New Orleans, next to the Ernest N. Morial Convention Center where DAC2002 is held. The IBIS meeting is planned all day. This is the annual meeting which includes elections of IBIS officers for the 2002-2003 term. Guy de Burgh is handling the registration and has sent out a call for signup and presentations notice to the reflectors. The EIA IBIS Open Forum funds this meeting from dues payments and is providing a hot lunch for attendees. Bob noted that we typically get 25 to 30 people attending this summit meeting, but we may see some residual impact of the slow economic environment this year. The IBIS Committee is always looking for people who want to serve as an officer or in other capacities. Nominations will be held at the meeting. You do not have to attend to be selected. Self nominations are accepted, and you can notify Stephen Peters or another officer if you are interested in severing in an elected position. Bob indicated that he already knows of some tentative presentations. We do expect discussions on the usual set of topics possibly including: IBIS Version 4.0 Connector Specification Quality and Accuracy IBIS Futures including Multi-lingual modeling and EMI Issues Modeling Experiences Bob asked how many on the phone planned on attending the summit. Seven or eight persons, including the officers, plan on attending. IBIS QUALIFICATION COMMITTEE Barry Katz reported that IBIS qualification group meetings were held April 4 and April 18, 2002. New meeting times will be on every other Tuesdays 8-9 AM, with the exception that another meeting is planned next week on April 23, 2002. Barry noted that Mike LaBonte has set up an e-mail archive on: http://www.freelists.org/archives/ibis-quality/ for IBIS Quality meeting correspondence. The quality committee has also compiled a spreadsheet of issues that effect IBIS model quality. It is hoped that by concentrating on these issues the quality committee can identify steps that will improve a large percentage of industry models. In response to a question, Stephen Peters noted that suggestions for improvements to the current golden parser should go through the existing bug reporting mechanism. Barry Katz then reported that the quality committee has discussed the idea of making the current IBISCHK3 program (golden parser) available to the industry under an open source arrangement; i.e. distributing the source code free of charge, then allow the industry to contribute to the program. It was felt that this will enable a great many enhancements to be incorporated. Stephen Peters stated that he expects a gatekeeper to control the base source code and approve additions. Bob Ross noted that while he is generally a supporter of open source programs, selling the source code in the mechanism we use to fund maintenance of the current parser and development of new versions. Bob also cautioned that the golden parser is a fundamental reference for IBIS and the Open Forum must maintain ultimate control of the source, and that any gatekeeper person or organization will be expected to maintain a stable, long term relationship with the Forum. During the ensuing discussion it was noted that the Forum could distribute the source code for free but license the right to include the parser in commercial products. Bob suggested that perhaps we should first try an open source model for the current S2IBIS program, noting that a great many IBIS models are generated from S2IBIS. In conclusion, Stephen asked the quality committee to come up with a specific straw man proposal for discussion as the next teleconference. IBIS MODEL REVIEW COMMITTEE DISCUSSION Bob Ross reported that a differential Input IBIS Model from Zarlink Semiconductors with a [Series Current] table was sent to the IBIS Model Review Committee. Another model was received, but we are still working privately to improve the model. The originators do not want it distributed yet. MAJORDOMO UPDATE Stephen Peters reported that the new disk approved at the last meeting has been purchased and installed on the eda.org site. A thank you banner exists on its home page. The IBIS Open Forum paid $432.23 for expanded archive capability. John Angulo reported that one virus was sent to the list. It turns out that this was sent (most likely un-intentionally) by a list member. It was noted by John and Bob Ross that several spam and virus messages from non-members have been trapped by the majordomo software. John noted that he will, as an experiment, go to a moderated list for the next couple of days. NEW ADMINISTRATIVE ISSUES Arpad Muranyi would like to see a different sort order for the directory names the in "ibis/pub/summit" area of eda.ftp. Currently, it is difficult to find a specific presentation by date. Arpad would like to see a sort order based on year then month. Bob Ross suggested adding either an HTML index file to turn it into a web page, or simply rename the directories. Bob stated that he would take the action item to fix this, and would first try adding the HTML index file. IBIS VERSION 4.0 REVIEW Stephen Peters conducted the third reading of the draft IBIS 4.0 document, this time outlining the changes to the current IBIS 3.2 document that resulted from incorporating BIRDS 64, Alternate Package Models and BIRD 73, Fallback Submodel. He also covered several other editorial corrections and specification clarifications. Stephen noted that the work in process document can be found at http://www.eda.org/pub/ibis/ver4.0_wip/ in either the ver4_0wip.pdf or ver4_0wip.txt files. (Note: page numbers mentioned below refer to pages in the ver4_0wip.pdf document.) Stephen started out by noting an editorial correction on page 12. Under the usage rules for [Alternate Package Models], the sentence: "The [Alternate Package Models] keyword, when used, is in the same [Component] section and must be followed by an [End Alternate Package Models] keyword" is incomplete and unclear. What is meant is that the [Alternate Package Models] keyword only applies to the [Component] section in which it appears. The usage section will be updated to fix the incorrect working. In another editorial correction on page 10, Stephen noted that the description field of the [Manufacture] keyword should read "Specifies the name of the component's manufacture." Regarding the usage rules for the [Test Data] keyword (page 51), Stephen asked why golden waveforms must be generated using unpackaged models. Stephen felt that this would prevent a user from including golden waveforms taken from bench data. Several people noted that the intent of the [Test Data] is to enable comparisons of EDA tool results with results obtained from transistor level SPICE simulations, not necessarily bench data. Stephen remarked that the intent needs to be clarified. Greg Edlund agreed to propose a couple of sentences explaining the intent. Stephen noted that on page 58, under the usage rules for [GND Pulse Table], [POWER Pulse Table], the first sentence should be corrected from "Time vs." to "voltage vs. time". In addition, reference to the maximum number of I-V table points should instead be to I-V table rows. Stephen then went on to page 66 to review the additions for the fallback submodel. Arpad Muranyi asked if these additions (among others) were needed if the fallback functionality could be described using the multi-language proposal of BIRD75. Stephen replied that there is no assurance that BIRD75 will be passed significantly before IBIS 4.0, and that tool vendors may be in a better position to implement a keyword rather than the multi-language proposal. Stephen also noted that the fallback keyword was created to cover a specific industry request (SCSI-2 driver modeling), and that a representative from the SCSI-2 technical committee should be involved in any decision. However, the timing and relationship between IBIS 4.0 and BIRD 75 is an issue that we need to consider carefully. After more discussion it was decided to further examine this issue at the next teleconference. IBIS CONNECTOR & FUTURES GROUP REPORT Stephen reported that combined futures and connector group meetings were held on April 4, 11 and 18, 2002. The last of the technical issues surrounding the addition of the two new keywords to support general purpose interconnect modeling have been resolved, and the group is ready to move on to reviewing the matrix format. Stephen stated that the connector specification should be available for review at the June 2002 Summit meeting. BIRD 74 - EMI Parameters Because of lack of time, this discussion was deferred. BIRD 75 - Multi-Lingual Modeling IBIS Modeling Support Because of lack of time, this discussion was deferred. IBISCHK3 & BUG TRACKING STATUS Bob Ross reported Atul Agarwal plans to work on nine BUGs and provide ibischk3.2.9 by mid May 2002. Atul might research BUG57 to find an economical solution. If not, we might just document the effect as part of the Error message. - BUG68 False Messages with Repeated Voltages Michael Mirmak from Intel reported this bug. Bob explained that this bug was a result of two very close voltage values in a table causing the tool to miscompare. Basically, this false error message is the result of numerical noise (artifacts) in the tool used to create the model. BUG68 was classified as ANNOYING, LOW, and OPEN, however, the resolution of this bug is not clear and will need to be investigated. Further discussion was differed until next meeting. NEXT MEETING: The next meeting will be a teleconference meeting, planed for May 10, 2002 from 8:00 AM to 10:00 AM Pacific Daylight Time. ============================================================================ NOTES IBIS CHAIR: Stephen Peters (503) 264-4108, Fax: (503) 264-1831 stephen.peters@intel.com Senior Hardware Engineer, Intel Corporation M/S JF4-215 2111 NE 25th Ave. Hillsboro, OR 97124-5961 VICE CHAIR: Bob Ross (503) 685-0732, Fax (503) 685-4897 bob_ross@mentor.com Modeling Engineer, Mentor Graphics 8005 S.W. Boeckman Road, Wilsonville, OR 97070 SECRETARY: Guy de Burgh (805) 988-8250, Fax: (805) 988-8259 gdeburgh@innoveda.com Senior Manager, Innoveda 1369 Del Norte Rd. Camarillo, CA 93010-8437 LIBRARIAN: Roy Leventhal crleventhal@attbi.com Independent, formerly Senior Engineer, CommWorks Corp. (a wholly owned 3Com subsidiary) 1800 W. Central Rd. Mt. Prospect, IL 60056-2293 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) 869-2320, Fax: (425) 881-1008 jangulo@innoveda.com Development Engineer, Innoveda 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. You can get on via FTP anonymous. ============================================================================