rehot cobba - GSM-Forum

yamaha · 06-23-2003, 06:56

hi i was just wondering what the terms

reflow
rehot
reball

all mean and how to perform one of these on say the cobba of a nokia phone?

what tools do u need?

experience?

themobileking · 06-23-2003, 18:08

Reflow and rehot mean ....to heat the component/device to a temperature where the solder melts....and cools down again once you remove the heat source....so that all loose connections are eliminated...

Reball means to re-make the solder balls under the BGA (Ball Grid Array)IC's that are installed in most phones available ...reballing involves...removal of the old solder balls under the BGA and installation of new balls with the help of a BGA reballing KIT....it sure sounds easy .....but doing it is a different thing ....and needs a lot of practice.

You need a HOT AIT STATION....and other tools ...like a soldering station ....and other hand tools

rgds

gsmsikar · 06-24-2003, 06:24

hi
please let me know,

if i have to change a new cobba then should i have to make new balls too or i can just remove the old and put the new one in it...?

and please let me know how to solder the new cobba?

i have SMD REWORK Station, and soldering iron but not BGA Reballing kit..

thanks, please reply soon...

Syed · 06-24-2003, 07:03

Quote:

Originally posted by gsmsikar
hi
please let me know,

if i have to change a new cobba then should i have to make new balls too or i can just remove the old and put the new one in it...?

and please let me know how to solder the new cobba?

i have SMD REWORK Station, and soldering iron but not BGA Reballing kit..

thanks, please reply soon...

where r u in India...i can teach u how to use reballing kit....contact me..

06-23-2003, 06:56	#1 (permalink)
yamaha Junior Member Join Date: Jun 2003 Location: australia Posts: 13 Member: 31327 Status: Offline Thanks Meter: 0	rehot cobba hi i was just wondering what the terms reflow rehot reball all mean and how to perform one of these on say the cobba of a nokia phone? what tools do u need? experience?

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06-23-2003, 18:08	#2 (permalink)
themobileking No Life Poster Join Date: Jun 2001 Location: Uranus Age: 53 Posts: 731 Member: 5072 Status: Offline Thanks Meter: 91	Reflow and rehot mean ....to heat the component/device to a temperature where the solder melts....and cools down again once you remove the heat source....so that all loose connections are eliminated... Reball means to re-make the solder balls under the BGA (Ball Grid Array)IC's that are installed in most phones available ...reballing involves...removal of the old solder balls under the BGA and installation of new balls with the help of a BGA reballing KIT....it sure sounds easy .....but doing it is a different thing ....and needs a lot of practice. You need a HOT AIT STATION....and other tools ...like a soldering station ....and other hand tools rgds

06-24-2003, 06:24	#3 (permalink)
gsmsikar No Life Poster Join Date: May 2003 Posts: 5,667 Member: 28004 Status: Offline Sonork: 100.1601142 Thanks Meter: 770	hi please let me know, if i have to change a new cobba then should i have to make new balls too or i can just remove the old and put the new one in it...? and please let me know how to solder the new cobba? i have SMD REWORK Station, and soldering iron but not BGA Reballing kit.. thanks, please reply soon...