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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