Author Topic: Is it possible to solder small BGA(flip chip) at home?  (Read 2791 times)

0 Members and 1 Guest are viewing this topic.

Offline TNbTopic starter

  • Regular Contributor
  • *
  • Posts: 106
  • Country: fi
Is it possible to solder small BGA(flip chip) at home?
« on: November 21, 2016, 02:55:19 am »
Is it possible to solder something like STM EMFI02 at home? Assuming I can screw up several times before I get it of course.

While bigger BGA packages can be soldered manually(like Louis shows below), this is flip chip and damn small one, so I suspect it is more touchy about temperature profile, positioning etc.


Should I even consider to buy it and try to solder with hands or better forget about it and find more suitable package IC?

And while we're at it - maybe somebody knows good and simple ESD usb protection IC like EMFI02?
« Last Edit: November 21, 2016, 02:59:07 am by TNb »
 

Offline TNbTopic starter

  • Regular Contributor
  • *
  • Posts: 106
  • Country: fi
Re: Is it possible to solder small BGA(flip chip) at home?
« Reply #1 on: November 21, 2016, 04:53:25 am »
Thanks! Maybe I'll find better IC, for now I haven't seen good one, usually they are either too complex with MUXes inside and other additional crap or I can use separate TVS diodes... but yeah, propably there is better IC, but nevertheless it would be interesting to try solder this puppy by hand, so I might as well buy couple of them :)

P.S. If somebody wonders about topic of using BGAs in their design - routing them is pain in the ass, requires multi-layer board and manufacturer that can handle small pitch traces, so even if it is possible to solder - probably throw this idea away for small hobby prototypes.
However(!) you can be lucky like me and you need just outer pins of BGA, so you route it as QFN package basically :)
« Last Edit: November 21, 2016, 04:59:20 am by TNb »
 

Offline plazma

  • Frequent Contributor
  • **
  • Posts: 472
  • Country: fi
    • Homepage
Re: Is it possible to solder small BGA(flip chip) at home?
« Reply #2 on: November 21, 2016, 06:13:30 am »
Hot air works with BGA. Pre-tin or order HASL PCBs. No need for solder paste. The BGA ball alone is enough. Apply flux to PCB before placing the chip.

Solder paste does help a little bit. Especially if the PCB  is not pretinned or without HASL. I have access to a very good dispenser at work. I have used it for 100+ pin BGA chips.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf