Author Topic: How to make cheap SMD rework preheater  (Read 13906 times)

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Offline flolicTopic starter

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How to make cheap SMD rework preheater
« on: May 16, 2011, 06:49:32 am »
Hi, I just want to share few pictures of my homemade preheater.
It is essential for BGA rework, and very helpful for any SMD rework on a larger multilayer boards.





XBOX360 board ready for rework:


GPU chip removed:


Solder ball stencil:


Reballed chip:


Resoldered on PCB:
 

Offline flolicTopic starter

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Re: How to make cheap SMD rework preheater
« Reply #1 on: May 16, 2011, 07:19:44 am »
Shafri, I much prefer wood grill  ;D

Yes, that's just a normal heater. I prefer to heat the whole board because bigger boards tend to warp if heated partially.
If for some reason I don't want to heat whole board, I mask part that needs to be cool with a aluminium foil.
 

Offline mobbarley

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Re: How to make cheap SMD rework preheater
« Reply #2 on: May 16, 2011, 08:17:51 am »
I really like your board holder! I was going to make something similar out of an adjustable hot air gun with a custom nozzle
 

Offline nukie

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Re: How to make cheap SMD rework preheater
« Reply #3 on: May 25, 2011, 04:42:22 am »
is it funny when parts on the other side of the board starts falling off? :D
 

Offline flolicTopic starter

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Re: How to make cheap SMD rework preheater
« Reply #4 on: May 25, 2011, 06:20:05 am »
Surface tension is a magical thing  ;)
 

Offline shijeesh

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Re: How to make cheap SMD rework preheater
« Reply #5 on: July 21, 2011, 12:15:43 am »
Which type heater is using
 

Alex

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Re: How to make cheap SMD rework preheater
« Reply #6 on: July 21, 2011, 12:55:15 am »
Nice mounts flolic, they are are important as the heater itself. Thanks for sharing. One idea you can consider is adding a sheet of say steel a few mm on top of the heater to diffuse the radiaton even more, which should further prevent the formation of hotspots under the pcb.
 

Offline mgg

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Re: How to make cheap SMD rework preheater
« Reply #7 on: August 28, 2011, 09:54:11 pm »
 :D Good evening, after seeing the tutorial, I was really excited because a station BGA cost a fortune and the basic principles of this machine is quite appealing, my question is is used a heat source on top of the graphics chip to remove or to re-weld? I await news ..
  Best Regards
   Miguel
 

Offline nzo

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Re: How to make cheap SMD rework preheater
« Reply #8 on: August 29, 2011, 11:09:49 am »
Beautifully crafted flolic. Thanks for sharing.
Frogman: half man, half frog, but which half?
 


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