Mounting a Cleaned IC and PCB

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Air Hot Hotair Rework Smd Soldering
sparkfun
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    sparkfun
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  • Added: 09-Mar-07

I've re-tinned the PCB with new solder. I've also cleaned up the bottom of the IC by re-tinning and removing any solder paste gunk that may have been shorting pads together on the bottom of the IC. Now I pre-heat the footprint a bit with a swirling motion to get the solder molten, place (throw) the IC down and it almost immediately goes to the center of the footprint. I bump the IC a bit (side to side and a bit of downward pressure) to make sure the IC is in contact with the footprint pads. A little more swirling of the air and the IC re-centers on the footprint and then I remove the air.

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Comments on

Mounting a Cleaned IC and PCB

6 Comments | Add Comment
  • no creo que sufran ...

    no creo que sufran tanto los circuitos, ademas tienen una capa que los proteje. demasiados cabios si los dañaria, como 3 cambios se nota lo amarillento del calor en el tablero

    By hackergiga [Affiliate User] 1198696164 Reply Spam Moderate Up Moderate Down
  • es mui rapido para ...

    es mui rapido para hacer lo
    pero tiene un problema de ke los circuitos
    sufren mucho

    By cristianoris [Affiliate User] 1196664089 Reply Spam Moderate Up Moderate Down
  • I also have shaky ...

    I also have shaky hands for some reason too. I guess I was born with it. Doesnt really help when you are trying to handle small things like diodes.

    By RCcarbuilder [Affiliate User] 1195912322 Reply Spam Moderate Up Moderate Down
  • shaky hands maybe ...

    shaky hands maybe you need a drink?

    By pytey [Affiliate User] 1175839618 Reply Spam Moderate Up Moderate Down
  • If you also add ...

    If you also add some tacky flux (I use kester TSF) to the board, you will flow the solder much easier. The component will likely self align itself too.

    By stonewall78 [Affiliate User] 1173699759 Reply Spam Moderate Up Moderate Down
  • Thanks for that. ...

    Thanks for that. QFN and stuff like that give me nightmares, but I have a hot air station at work that I have never tried.

    I tried the trick you guys show in one of your other videos with solder wick and was able to put on a 0,5mm pitch zif connector for a OSRAM OLED display. I was shocked when it worked...

    By DangODave [Affiliate User] 1173467997 Reply Spam Moderate Up Moderate Down
6 Comments | Add Comment
 
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