I have a customer specification requirement to inspect solder coating thickness per IPC-D-949 Class 2. I reviewed the Design Guide and did not find any solder coat thickness requirements. Where in this IPC spec is the solder coat thickness requirements? What is the relationship of IPC-D-949 and IPC-D-275? If I use the solder coat thickness in IPC-D-275, do I meet the requirements of IPC-D-949? Your help is appreciated. Randy Reed Merix Corporation [log in to unmask]