Hi Scott, Both standards IPC-A-610 F (Acceptability of Electronic Assemblies) and IPC/J-STD-001F (Requirements for Soldered Electrical and Electronic Assemblies ) for dimension "G" there are no specifications for min or max thickness, but as you have ridden on Note 3 (some time also Note 4 for some SMDs) for dimension "G" they only require : " wetting is evident ". That's it Gabriele -----Messaggio originale----- Da: TechNet [mailto:[log in to unmask]] Per conto di Decker, Scott UTAS Inviato: lunedì 29 agosto 2016 22:12 A: [log in to unmask] Oggetto: [TN] Solder under SMD Pads thickness Mins and Maxes. For some reason, I thought I saw a spec that mentioned what the minimum and maximum solder thicknesses are or can be between the component termination and the board pad. I looked through the J-Standard for soldering and could only find a reference to Dimension "G" note 3 which reads "Must show evidence of wetting." but no minimum or maximum. Can someone point me to the spec if there is one, for this soldering aspect of an assembly, or tell me I'm seeing things that don't exist... Thanks in advance... Happy Monday to all! Scott Decker - Senior Analyst, Drafting & Design Services CID+ - Electronic Systems Center UTC AEROSPACE SYSTEMS 3445 S. 5th Street, Suite 170, Phoenix, AZ 85040 U.S.A. Tel: 602 308 5957 FAX: 602 243 2347 [log in to unmask]<mailto:[log in to unmask]> www.utcaerospacesystems.com<http://www.utcaerospacesystems.com/> CONFIDENTIALITY WARNING: This message may contain proprietary and/or privileged information of UTC Aerospace Systems and its affiliated companies. If you are not the intended recipient please 1) do not disclose, copy, distribute or use this message or its contents, 2) advise the sender by return e-mail, and 3) delete all copies (including all attachments) from your computer. Your cooperation is greatly appreciated. This Document Does Not Contain Export Controlled Technology Or Technical Data. --- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus