What do you recommend for thickness? I've been in several discussions about this, but none have resulted in anything conclusive. Also, how and where on surface mount pads do you measure this thickness? Often people refer to the 'shininess' of the pads, but this seems to be more an issue of surface roughness/grain structure, and not particularly related to solderability. Any comments? Thanks, Mike Aldrich ______________________________ Reply Separator _________________________________ Subject: Re: [TN] Intermittent Dewetting Author: MIME:[log in to unmask] at INTERNET Date: 11/3/98 9:15 AM Hi 'pacrim,' Your problem is likely related for too thin HASL'ed solder layers for the transport/storage conditions experienced. Werner Engelmaier Engelmaier Associates, L.C. Electronic Packaging, Interconnection and Reliability Consulting 7 Jasmine Run Ormond Beach, FL 32174 USA Phone: 904-437-8747, Fax: 904-437-8737 E-mail: [log in to unmask] ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum 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's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################