Electronics Forum | Tue Oct 31 19:56:18 EST 2000 | Massimo
I'm reworking BGA with a "SRT Summit 2000". This machine uses a nozzle of the same size of the BGA to conduct nitrogen to the top of the BGA. When I rework big PBGAs (318PBGA, 388PBGA) I've got shorts at the corners (100% of the times!). I think the
Electronics Forum | Tue Mar 09 22:20:16 EST 2004 | Ken
Is this a PBGA? If yes. run a flat steel rule or edge across the top of the PBGA. Is it flat or cupped? Is this a TBGA (super bga). I have seen issues with a suppliers heat spreader design that actually will deflect the corners down and raise the
Electronics Forum | Tue May 14 20:25:02 EDT 2002 | russ
Hello All, I've got a little problem here. I have a 456 ball PBGA 1mm pitch, .5mm balls, with .6mm pads on the board. given that the pad size is way to big (S/B .45mm or so)I need any and all advice on how to rework these things without shorting o
Electronics Forum | Mon Mar 08 09:03:17 EST 2004 | russ
Is this problem really related to the size of the BGA OR the size/thickness of the PCB? Would I be correct in assuming that your pre-heater is small in size? Usually a board warps like this when the ramp is to great at the localized area. the imme
Electronics Forum | Thu Apr 25 17:17:44 EDT 2019 | spitkis2
Years ago it was common to see 2-3mm keep out areas around BGAs. Now with boards being so densely populated there are no clearance minimums. Regardless if the machine is using convection or IR heating, parts can be reworked without affecting adjace
Electronics Forum | Tue Nov 01 08:23:20 EST 2005 | pjc
No can do. FPD was designed for leaded components. Nozzles and head not for BGA. No retrofit avbl either.
Electronics Forum | Wed Nov 01 18:20:29 EST 2000 | massimo
Thank you Wolfgang, I've found something usefull in the thread, even if unfortunately nobody talks about the design of the nozzle. About the warpage, I clearly see the warpage of the corners of the BGA. To avoid it I'll keep the temperture of the nit
Electronics Forum | Tue Nov 01 01:36:27 EST 2005 | mki
Hi, I am looking for opinion about possibility to do BGA rework with SRT-FPD? This early model (before 2000) is equiped with "Variable Perimeter Heater" (VPH). For BGA rework, SRT introduced later "Summit" models with removable nozzles. I am wonderin
Electronics Forum | Thu Jun 08 06:08:06 EDT 2000 | jacqueline coia
Hi There, I know this is a long shot but does anyone in Scotland have a 31mil nozzle for an Airvac rework station that they are willing to hire out for a short period of time? Also is there any papers or sites that can give good technical advice on B
Electronics Forum | Mon Nov 25 13:00:12 EST 2002 | steve
Ersa is the choice for lower end repair and rework systems. Airvac is the choice for higher end systems. Stay away from low end hot air units. They typically do not present an even flow of heat across the component. The Ersa requires no nozzles, whic
