help with bga chips - GSM-Forum

darkeye · 01-16-2003, 15:23

can anybody give some informations about bga chips reballing and soldering. if i want to change this chips the phone become dead.
i ll be glad if somebody help me some informations about it.

izroda · 01-17-2003, 16:55

hi
see that
http://www.xytronic.com/pi/bga_chips.htm

opo · 01-17-2003, 22:22

That is ok but very expensive.Is not as simple as it looks,nokia says you have to bake bga chips at 125°C for 24 hours before working with...Also you have to be electrostatic free...And you have to buy good quality equipement(wich is as i said expensiv)...Not doing this can damage the chips or the Pcb of the phone....
Do you stell wanna try??

darkeye · 01-25-2003, 02:57

thank you very much izroda the photos are exellent but no instructions. what kind of liqiud should i use ? flux?

01-16-2003, 15:23	#1 (permalink)
darkeye No Life Poster Join Date: Feb 2002 Location: germany Age: 49 Posts: 966 Member: 9584 Status: Offline Thanks Meter: 31	help with bga chips can anybody give some informations about bga chips reballing and soldering. if i want to change this chips the phone become dead. i ll be glad if somebody help me some informations about it.

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01-17-2003, 16:55	#2 (permalink)
izroda Junior Member Join Date: Sep 2002 Age: 60 Posts: 7 Member: 15876 Status: Offline Thanks Meter: 0	hi see that http://www.xytronic.com/pi/bga_chips.htm

01-17-2003, 22:22	#3 (permalink)
opo No Life Poster Join Date: Oct 2002 Location: Shenzhen China Age: 68 Posts: 1,074 Member: 16350 Status: Offline Sonork: 110823 Thanks Meter: 42	That is ok but very expensive.Is not as simple as it looks,nokia says you have to bake bga chips at 125°C for 24 hours before working with...Also you have to be electrostatic free...And you have to buy good quality equipement(wich is as i said expensiv)...Not doing this can damage the chips or the Pcb of the phone.... Do you stell wanna try??

01-25-2003, 02:57	#4 (permalink)
darkeye No Life Poster Join Date: Feb 2002 Location: germany Age: 49 Posts: 966 Member: 9584 Status: Offline Thanks Meter: 31	thank you very much izroda the photos are exellent but no instructions. what kind of liqiud should i use ? flux?