your comments will be appreciated, please;
IC tests have been performed on two kind of Raw PCBs (HASL) samples by adopting three different methods :
First Sample (supllier A)
- Omegameter 600 SMT, solvent=40�C: extratcing time 10 min result = 0.2 ugr NaCl/ cm2 (average)
- IPC-TM-650 2.3.25.1, solvent=80�C, extracting time 60 min result = 1.45 ugr NaCl/ cm2 (average)
- - IPC-TM-650 2.3.25.1, solvent=40�C,extracting time 60 min result = 0.62 ugr NaCl/ cm2 (avg)
Second sample (Supllier B)
Raw PCB (HASL)samples, have been tested by using same methods as above:
- Omegameter 600 SMT, solvent=40�C: extratcing time 10 min result = 1.4 ugr NaCl/ cm2 (avg)
- IPC-TM-650 2.3.25.1, solvent=80�C, extracting time 60 min result = 2.73 ugr NaCl/ cm2 (AVG)
- - IPC-TM-650 2.3.25.1, solvent=40�C,extracting time 60 min result = 1.67 ugr NaCl/ cm2 (AVG)
I am aware that by using different test methos, the results cannot be same, but I am interested to have your comments and suggestions in order to chose the most reliable Test Method to use. My opinion is that IPC-TM-650 2.3.25.1, solvent=80�C, extracting time 60 min, is more accurate but may be to "exagerate".
Thank you
Best Regards.....GSx
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