zhuyongfa its core logic power which will get the highest priority.(for stabilised operation of the device) Thanks chand z46147 <zhuyongfa@xxxxxxxxxx> wrote: Hi everyone, In pcb design, there are several type of power(core logic power, I/O power). In some designs we can not provide GND planes for each power type, when that happens, which power type(core logic power, I/O power) we should give priority to close with GND plane? As we all know, core logic power always gives rise to EMI problem, and Thanks and regards! Zhuyongfa Huawei Technologies Co., Ltd. Bantian, Longgang District Shenzhen 518129, P.R.China Tel:+86-755-89650717 mail:zhuyongfa@xxxxxxxxxx ------------------------------------------------------------------ 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org 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 --------------------------------- Get your own web address for just $1.99/1st yr. We'll help. Yahoo! Small Business. ------------------------------------------------------------------ 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 FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl?Si-List_FAQ List technical documents are available at: http://www.si-list.org 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