Strictly from a soldering point of view I would say - as its Friday - that enePIG is a good name. Regards Mike -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Wenger, George M. Sent: Friday, April 24, 2009 10:59 AM To: [log in to unmask] Subject: Re: [TN] Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) Someone at a NEPCON, NCMS or IPC conference (he can't Lee, Someone at a NEPCON, NCMS or IPC conference (he can't remember which because it was many years ago) made a statement that "Pd SUCKS". A year later he had to modify that statement to "Electroless Processes SUCK" because he had personal experiences with solder joint reliability using full-built Electroless copper with OSP, Electroless Nickel Immersion gold, and Electroless Nickel Electroless Palladium Immersion Gold. That person isn't a chemist but he dealt with many board shop chemical process engineers that told him that Electrolytic processes were relatively easy to control as long as you can deal with the current density issue and Immersion processes were relatively easy to control in that they are self limiting but Electroless processes were the most difficult to control. I guess if one really had a need for ENEPIG they would use it but the person that said "Electroless Processes SUCK" would most likely tell you that he would be concerned about it for high reliability aerospace use. Regards, George George M. Wenger Andrew Wireless Solutions Senior Principal FMA / Reliability Engineer 40 Technology Drive, Warren, NJ 07059 (908) 546-4531 [Office] (732) 309-8964 [Cell] [log in to unmask] -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee Whiteman Sent: Thursday, April 23, 2009 2:11 PM To: [log in to unmask] Subject: [TN] Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) Does anyone have any opinions of using Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) as a board finish for high reliability aerospace applications? You can contact me off line if necessary... Thanks again. 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