Can anyone recommend any test labs in Canada or US capable of this type of analysis? John Parsons -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee parker Sent: Tuesday, September 20, 2005 7:31 PM To: [log in to unmask] Subject: Re: [TN] ENIG contaminant : Auger analysis recommended ? Michel Those who are familiar with Auger will tell you it is the method of choice for surface analysis. It only penetrates angstroms into the surface and you can sputter a controlled depth into the surface. The only issue I have ever encountered is the operator; you need an expert to operate the machine and interpret the results. Best regards Lee J. Lee Parker, Ph.D. JLP Consultants LLC 804 779 3389 ----- Original Message ----- From: Arbour, Michel<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> Sent: Tuesday, September 20, 2005 5:11 PM Subject: [TN] ENIG contaminant : Auger analysis recommended ? Hi We will be sending non solderable PCB for analysis. Goal is to detect black nickel, black pad, soldermask contamination before plating or other contaminant. Is Auger analysis with ion sputtering (SAM) an effective method to determine the contaminants. Is this method proven and accepted in the PCB industry for this task ? Michel Arbour --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------