Hi Judy: Solder joints are solder joints - a reliable solder joint should not be process specific although some processes are more suited to making certain solder joint geometry's than others. The heel fillet is a critical location for good solder joint reliability. I think that meeting the "standard" requirements is not the issue - does the heel fillet you end up with provide the reliability needed for the use environment that you are in? If it does then document those facts for internal or customer review. I would also suggest that you forward that documentation/information (if you are allowed) to the IPC ANSIJ-STD-001 committee so that the information can be incorporated into the specification. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: FWD>assy: hot bar solder jo Author: [log in to unmask] at ccmgw1 Date: 7/10/96 7:26 PM this meesage is being forwarded from a co-worker, the solder joints that we are forming with our hot bar process are not meeting the requirements of 'standard' workmanship criteria. in particular, we have a difficult time meeting 'heel fillet' requirements. the defect is one of 'insufficient solder' at the heel fillet. it isn't that there isn't any heel fillet; it's just that it isn't as pronounced as the standards require. question.- are there solder joint standards specific to hot bar soldering? thanks, phil crepeau, trw-san diego Judy Murray TRW San Diego 619.592.3616 [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************