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

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