Hello Alvin,

Lots of good info about HASL can be found via my website at
http://www.smtinfo.net
Just click on the link named "HASL".

Best Regards,

Daan Terstegge
PCB Assembly Department
Thales Land&Joint Systems

Tel:     +31(0)35 524 8297
Fax:    +31(0)35 524 8181
Unclassified Email



>>> [log in to unmask] 01/06/05 02:06am >>>
hi,

the full title of this msg is: "HASL (hot air solder levelling) solder
thickness impact on solderability with SnPb and Pb-free solder"

i am currently in my 3rd year in a local university in singapore. the
above
named issue is a project that i am supposed to do. due to my lack of
knowledge in this field, i would like to seek the opinions, advice or
help
from the people with expertise here.

the project objectives are as follows:

1) To study the extent of inter-metallic layer on thin HASL coating
thickness and the influence on assembly solderability.

2) To study any implication of lead free HASL as a surface finishing

3) To compare solderability of thick and thin HASL solder thickness
with
both SnPb and PB free solder

i would appreciate any facts, info or links to relevant
articles/reports/journals/magazines pertaining to my scope of the
project.
many thanks!

regards,
alvin

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