What are the recommendations for taking HASL readings on a bare board, allowing for the variations in the HASL process to ensure the HASL thickness is consistent throughout the whole board? I there some definition of locations on the board, quantity of readings, readings taken at different part technologies? Is there a guideline in IPC-A-600 somewhere? Have TechNetters used that as a tried and true guideline or made enhancements to guarantee consistency? Thanking TechNet in advance! Jan Pelchat ################################################################ 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 ################################################################