Hello people of TechNet, What is the minimum nickel and gold thickness in the bottom of micro-vias. IPC 6012 doesn't seem to be very specific on that point. On the surface, a minimum of 50 microinch seems sufficient, but how does this garantee corrosion protection in the barrel of the blind vias? Your toughts please, Thanks, Ronny. _______________________________________________________ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------