According to the IBIS 4.2 specification FORK and ENDFORK are allowed in package models. I haven't seen them used in package models in a long time. The only use I saw for FORK in a package model was to represent the plating traces in ceramic PGA packages. That's been a few years ago. So the answer to the original question is that the branch didn't go anywhere. In the actual finished package the plating traces were just stubs off the signal trace. They needed to be modeled correctly because of the impedance discontinuity that they created. Regards, Weston -----Original Message----- From: owner-ibis@server.eda.org [mailto:owner-ibis@server.eda.org] On Behalf Of Lynne D. Green Sent: Monday, May 07, 2007 9:42 AM To: 'Yasser Sabry'; ibis@server.eda-stds.org Subject: RE: [IBIS] About Fork in The Package Model Hello, Yasser, FORK and ENDFORK not allowed in PKG models. FORK and ENDFORK are allowed in EBD and ICM models. - Lynne "IBIS training when you need it, where you need it." Dr. Lynne Green Green Streak Programs http://www.greenstreakprograms.com 425-788-0412 lgreen22@mindspring.com -----Original Message----- From: owner-ibis@eda.org [mailto:owner-ibis@eda.org] On Behalf Of Yasser Sabry Sent: Sunday, May 06, 2007 9:11 AM To: ibis@eda-stds.org Subject: [IBIS] About Fork in The Package Model Hi all, Fork is used to make branches. In EBD, it is clear where these branches go to as the destination node or pin is specified. However, in package model the destination is not clear for me. Where do the branches go to? Thanks for your help, Yasser Sabry ------------------------------------------- Yasser Mohammed Sabry Device Modeling Team Analog/Mixed Signal - DSM Division Mentor Graphics Egypt Tel: (+202) 416 3613 Mob: (+2010) 1834833 Fax: (+202) 418 6945 E-mail: yasser_sabry@mentor.com ------------------------------------------- -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -------------------------------------------------------------------- |For help or to subscribe/unsubscribe, e-mail majordomo@eda-stds.org |with the appropriate command message(s) in the body: | | help | subscribe ibis <optional e-mail address, if different> | subscribe ibis-users <optional e-mail address, if different> | unsubscribe ibis <optional e-mail address, if different> | unsubscribe ibis-users <optional e-mail address, if different> | |or e-mail a request to ibis-request@eda-stds.org. | |IBIS reflector archives exist under: | | http://www.eda-stds.org/pub/ibis/email_archive/ Recent | http://www.eda-stds.org/pub/ibis/users_archive/ Recent | http://www.eda-stds.org/pub/ibis/email/ E-mail since 1993Received on Mon May 7 11:13:48 2007
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