Hi Nimish, How are you? You can understand these knowledge. Example : FEM / FDTD Numerical Method, TDR, complex via hole structures, SPICE and IBIS. Below is IEEE Paper. The paper is available online as a pdf file at the IEEE Xplore website. (http://ieeexplore.ieee.org/) Best Regards, Hugo Chuang 1. Modelling complex via hole structures Laermans, E.; De Geest, J.; De Zutter, D.; Olyslager, F.; Sercu, S.; Morlion, D.; Electrical Performance of Electronic Packaging, 2001 , 29-31 Oct. 2001 Page(s): 149 -152 2. Modeling complex via hole structures Laermans, E.; De Geest, J.; De Zutter, D.; Olyslager, F.; Sercu, S.; Morlion, D.; Advanced Packaging, IEEE Transactions on [see also Components, Packaging and Manufacturing Technology, Part B: Advanced Packaging, IEEE Transactions on] , Volume: 25 Issue: 2 , May 2002 Page(s): 206 -214 3. Analysis of via in multilayer printed circuit boards for high-speed digital systems Jin-Ho Kim; Sung-Woo Han; Oh-Kyong Kwon; Electronic Materials and Packaging, 2001. EMAP 2001. Advances in , 19-22 Nov. 2001 Page(s): 382 -387 4. (*** P343 Fig16- Candance simulator SpectraQuest ) An experimental procedure to derive reliable IBIS models Zak, T.; Ducrot, M.; Xavier, C.; Drissi, M.; Electronics Packaging Technology Conference, 2000. (EPTC 2000). Proceedings of 3rd , 5-7 Dec 2000 Page(s): 339 -344 5. SPICE and IBIS modeling kits the basis for signal integrity analyses Cuny, R.H.G.; Electromagnetic Compatibility, 1996. Symposium Record. IEEE 1996 International Symposium on , 19-23 Aug. 1996 Page(s): 204 -208 6. Behavioral modeling for timing, noise, and signal integrity analysis Hayes, J.D.; Wissel, L.; Custom Integrated Circuits, 2001, IEEE Conference on. , 6-9 May 2001 Page(s): 353 -356 7. Finite element modeling of 3D interconnection structures Jilin Tan; Guangwen Pan; Microwave and Millimeter Wave Technology Proceedings, 1998. ICMMT '98. 1998 International Conference on , 18-20 Aug. 1998 Page(s): 957 -960 ----- Original Message ----- From: "Nimish Aggarwal" <nagarwal@xxxxxxxxxxx> To: <si-list@xxxxxxxxxxxxx> Sent: Friday, June 27, 2003 10:08 PM Subject: [SI-LIST] via ? Hi I am new to this list. Can you tell me how to model via for signal = integrity analysis in a multilayer boards. What are the other requirements to do a multilayer board simulation else = IBIS model. Need Help. Regards Nimish ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu