We are looking at adding to our current batch washer (Older Aqueous Tech
unit) and I am interested in hearing some thoughts as well as first hand
experience on how the following two cleaning systems work with regards
to low profile (BGA's etc.) devices run as both conventional and
lead-free processes.  We are currently running water soluble flux and
are not using saponifiers for the cleaning process.  I have listed the
two machines we are considering along with my thoughts.  I am interested
in hearing yours.

 

Aqueous SMT1000

-         dish washer style loading, poor loading = poor cleaning

-         vertical loading improves throughput 

-         high pressure pumps 120psi wash, 45psi rinse for leadfree but
can this style of machine effectively clean under BGA devices?

 

Electrovert Aquajet

-          large cleaning area (30x30") but horizontal loading would
appear to limit throughput.

-          Is any racking available for this machine to process boards
vertically for increased throughput (within height limitations of front
opening) or does design technology reduce cleaning cycle when compared
to Aqueous machine thereby somewhat offsetting loading capacity.

-          wash and rinse technology coupled with horizontal loading
seems that it would do a significantly better job on cleaning under low
profile devices

Regards, 
John Parsons

 


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