Sounds like missing nickel barrier Ken ; that is gold merrily diffused straight in the copper . I know it sounds hard to believe ; ship it back, I'd say you'd have a hard time to wet it . Than again, the fab folks would know better . paul klasek ResMed PS Anil i consistently used to battle with the same problem : different suppliers using different standards using different methods using different machines . Ended all the interpolations rather drastic way : If they want to sell ; they have to verify their measurements with ONE adopted benchmark (one lab); independent (as i found some "measurements" were follies) which I specified . Crystal ball interpolating prior to this a dozen of validated fabs was getting me absolutely nowhere ; as the 0.3um measurements were mostly on resolution limits of test instruments . I used to get minus(!) readings from some "labs" = say -0.2umAu . have a fun -----Original Message----- From: Ken Patel [mailto:[log in to unmask]] Sent: Tuesday, 12 October 1999 9:19 To: [log in to unmask] Subject: [TN] Nickel-Gold plating defect... Guys, I have received a Nickel-Gold fab from my fabricator and found some randomly located brown pads, missing shining gold finish. What kind of defect is this? Is it ok to proceed assembly with the this kind of defect? Any reliability concerns? re, ken patel ______________________________________________________ Ken Patel Phone: (408) 490-6804 1708 McCarthy Blvd. Fax: (408) 490-6859 Milpitas, CA 95035 Beeper: (888) 769-1808 ############################################################## 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 ##############################################################