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09-16-2007, 17:58 | #1 (permalink) |
No Life Poster Join Date: Sep 2002 Location: Poland
Posts: 638
Member: 15521 Status: Offline Thanks Meter: 57 | What temperature for remove BGA? What temperature I must set for remove BGA on the PB tin, and what for withut PB tin? (170 - for PB) and (225 for without PB) is good? Regards ****** |
09-19-2007, 00:27 | #2 (permalink) |
No Life Poster Join Date: Oct 2001 Location: -------- Age: 55
Posts: 1,009
Member: 7062 Status: Offline Thanks Meter: 126 | For lead free answer is yes but you have to give teh board teh preheating stage for 1 minute at least preheat image is 90 C For leaded you might face boards need up to 185 depend in teh solder mix used might use sliver (Ag) sn63pb36Ag1 Br Raheeeeb |
09-19-2007, 15:37 | #3 (permalink) |
Freak Poster Join Date: Apr 2002 Age: 46
Posts: 423
Member: 10679 Status: Offline Thanks Meter: 35 | My information id about hot air stations, please delete if it is incorrect.. Your values are correct for the temperature at the PCB. But the temp set at the heater unit is not the same as on the PCB! With BGA you are heating the balls through the IC package, which causes further temperature losses, plus the PTC sensor is not in at the end of the exhaus pipe in most models, you are just setting the temperatur of the air heating element. On my hot air stations (JBC AM-6000 & AOYUE-852A) for PB free I use 350C setting, for PB around 330C. Last edited by doggyfreestart; 09-19-2007 at 15:43. |
09-19-2007, 18:44 | #4 (permalink) | |||
No Life Poster Join Date: Oct 2001 Location: -------- Age: 55
Posts: 1,009
Member: 7062 Status: Offline Thanks Meter: 126 | Quote:
Quote:
Quote:
Also refer to Ok international micro oven theory for hot air APR 5000 dz (please refer to nozzle design section) BR. Raheeeeb On my hot air stations (JBC AM-6000 & AOYUE-852A) for PB free I use 350C setting, for PB around 330C. | |||
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