To All, We are now making a comparison between different alternatives to HASL. The chosen alternative will have to meet the following criterias criterias. - flat coating - compatible with No-clean process and mixed technology - resistant to 2-3 reflow (multiple heat cycle) -and MINIMUM 1 year shelf life (storage before assembly) These are the alternatives we think can meet our needs: * OSP - Benzimidazole (?) * IMMERSION - Silver - Bismuth - Au-Ni - Palladium Q: Wich one do you think could be the best meet to our criterias ? Q: And what would be its advantage(s) compared to the others ? Q: OTHERS ? (is anyone using other coating alternative ) Thanks for all for your help Nicolas van der Heyden ################################################################ 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 web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################