Hi Paul - I forgot one issue with the palladium that you need to be aware of with the palladium - plating finish thickness. Texas Instruments currently has been supplying Pd finished parts to the industry with a 3 microinch thick finish of Pd. This thickness does not seem to be a problem but if your vendor is going to furnish a thicker Pd finish I would conduct some Scanning Electron Microscopy to insure that the solder joint microstructure is acceptable and conduct some thermal cycle testing to insure that the mechanical response of the solder joint is acceptable. Dave Hillman Rockwell Collins [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: Palladium finish Author: [log in to unmask] at ccmgw1 Date: 5/27/96 3:15 PM We have a vendor who is changing the metallizations of its components to palladium from tin/lead. Has anyone had problems with this? Are there problems with no-clean fluxes?