Dear Experts, I'm using Spectre simulator to generate IBIS model, but at the I/V curve simulation, there are a lot of warnings, and the simulation result is much different from Hspice simulation result. Such as: WARNING (CMI-2139): xgnd_clamp.x_pad_io.xmxidrv2/mpout@39: The bulk-source junction current exceeds `imelt'. The results computed by Virtuoso(R) Spectre(R) are now incorrect because the junction current model has been linearized. These happen for gnd clamp, power clamp, pulldown and pullup simulation, the voltage sweep is -VDD ~ 2VDD, when the voltage is too low, the simulation results (include ESD circuit) seems not correct. for example: i_gnd_clamp=40A, the current is bigger, and the Hspice simulation result is about 20A. Could you tell me how can I do that? Thanks a lot!! bi -- 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 Tue Aug 19 18:16:02 2008
This archive was generated by hypermail 2.1.8 : Tue Aug 19 2008 - 18:17:08 PDT