Bruce, suppress the resonance with a matching zero. If the tolerances are tight you can use two or more tightly spaced zeroes. Steve. On 5/8/2013 11:26 PM, Bruce wrote: > Hi Expert > > > We use Embedded Capacitance Material for better PDN and less capacitor > component. According to PDN Simulation. We notice that is an anti-resonance > point between capacitor and Plane. > > > > We can find that when use Embedded Capacitance Material. There are much > better in most frequency but near anti-resonance point. > > > > In this case. We have to solution. > > 1. Try to reduce the anti-resonance point. We need many high frequency > capacitor component. That is not good because we want to reduce the number > of capacitor component. Our purpose is reduce 70% number of capacitor > component. > > 2. Keep this anti-resonance point. That maybe have a risk if there is > some noise by chance in this frequency > > > > How about your suggestion? Please let me know if my question is not clear > enough. > > Thanks > > > > Best Regards, > > Bruce Wu > > > > > > ------------------------------------------------------------------ > 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 forum is accessible at: > http://tech.groups.yahoo.com/group/si-list > > List archives are viewable at: > //www.freelists.org/archives/si-list > > Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > > > -- Steve Weir IPBLOX, LLC 1580 Grand Point Way MS 34689 Reno, NV 89523-9998 www.ipblox.com (775) 299-4236 Business (866) 675-4630 Toll-free (707) 780-1951 Fax All contents Copyright (c)2013 IPBLOX, LLC. All Rights Reserved. This e-mail may contain confidential material. If you are not the intended recipient, please destroy all records and notify the sender. ------------------------------------------------------------------ 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 forum is accessible at: http://tech.groups.yahoo.com/group/si-list List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu