Hi, we have a customer who looks for a PCB laminate (or other solution) to manufactur an extrem ESD sensitive product. The now use FR4 which has a typical volume surface of about 100 T-Ohm - but they look at about 1-10 MOhm/cm. From my modest experiance normal laminate will definitly not fit since its resistivity is much higher. Is there any laminate with such a low surface resistivity (and still PTH-able)? Is there any other solution? (I sugested already a condictive coating, but they can't do that as there are too many production steps and the coat will disturb). Any help is appreciated! Jens --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------