Jim, Check out our website and go to the design handbook section. In the back pages you will find a cost adder chart that should assist you. www.pcbprotech.com Take Care, John Walker Pro-Tech 617-803-6033 Jim Mathis wrote: > Assuming all other considerations being equal (size, # of holes, hole sizes, > etc.), what is the typical cost adder for going 4-layer from 2-layer? 1.5X, > 2X. etc? > > Also, in an EMI-sensitive environment, how would you recommend the layer > stack-up? Signal 1, Ground, Supply, Signal 2 OR Ground, S1, S2, Supply? OR > something else? > > Thanks. > > ############################################################## > TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c > ############################################################## > To subscribe/unsubscribe, send a message to [log in to unmask] with following text in > the body: > To subscribe: SUBSCRIBE TECHNET <your full name> > To unsubscribe: SIGNOFF TECHNET > ############################################################## > Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional > information. > If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or > 847-509-9700 ext.5365 > ############################################################## ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Gayatri Sardeshpande at [log in to unmask] or 847-509-9700 ext.5365 ##############################################################