Nasir , economics of sufficient process is the answer , carbon over tin is an extra process of dubious character , I will not comment on straight PbSn attachment . paul >---------- >From: Nasir Hanif[SMTP:[log in to unmask]] >Sent: Wednesday, 25 March 1998 0:21 >To: [log in to unmask] >Subject: [TN] Carbon Ink Vs. Gold Finish > >I would like to know why some oems are using gold finish pads on pcb's used >to for lcd attachment by elastomeric strips, while others are using carbon >ink over tin-lead plating. What is the advantage of one over the other? >Also, one manufacturer used regular tin-lead plating on the pcb in the >attachment process >Any input will be greatly appreciated > > >Thanks > >Nasir >[log in to unmask] > >################################################################ >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 the technical support contact Dmitriy Sklyar at [log in to unmask] or >847-509-9700 ext.311 >################################################################ > > ################################################################ 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 the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################