My experience has been a little different. It seems more like if Double Sided is 100% than 4-layer is 200%, 6-layer is 300%, 8-layer is 400%, etc. FNK > ---------- > From: Mauricio Castro[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;[log in to unmask] > Sent: Tuesday, May 26, 1998 7:12 AM > To: [log in to unmask] > Subject: Re: [TN] No. of layers Vs Cost > > The general rule of thumb is: if Double Sided is 100%, 4 layers > will be 50% > more, 6 layers 25% more, 8 layers 12.5%, etc. > > Example: if Double Sided PCB costs $1.00, 4 layers (same size) > will cost > $1.50, 6 layers $1.875, 8 layers $2.08125, etc, etc. > > This rule can be applied to standard PCB's and gives you an idea > of costs. > > > Mauricio Castro > Molex de Mexico > > > ______________________________ Reply Separator > _________________________________ > Subject: [TN] No. of layers Vs Cost > Author: "Gagrani; Kishore" <[log in to unmask]> at > INTERNET > Date: 26/5/98 9:25 AM > > > I understand that more no. of layers would increase the cost of PCB, > but how is this function related ? Is there any formula (certainly > will have many no. of variables) which can be applied to figure > this out ? > > ################################################################ > TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for > additional > information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 > ext.312 > ################################################################ > > ################################################################ > TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for > additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ > ################################################################ TechNet E-Mail Forum 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://jefry.ipc.org/forum.htm) for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################