BGA reworking without special reballing equippment

This video shows how to do BGA reworking without solder masks, reballing pads and other special (and expensive) stuff. Just standard SMD soldering equippment is used.
IMPORTANT: Because I was asked several times: DO NOT try this, unless you have LOTS of experience in soldering! It might look easy, but it isn't. If unsure, get an old mainboard/phone/... and try, before working on your broken device! Invest the time - it will be worth it.

Category:

Howto & Style

Tags:

• BGA
• soldering
• reworking
• reballing
• löten
• SMD

[michaeld4500]

Hi great work. What type of flux and what is the solder you used ? Thanks

[LoMe64]

@michaeld4500

Thank you.

Concerning flux and solder, please read the older comments.

It's discussed more than once there.

Lothar

[trueblu8]

Awesome. Wow. I don't think I would have the patience to do this. Love the music too.

[LoMe64]

@trueblu8

Thank you for the kind words! Lothar

[YouStubid]

Hmmmm why did you cover it with foil when heating the first time but did not cover it when heating the chip back...? Is the foil even needed.

[LoMe64]

@YouStubid

I already answered this question in the comments.

It's not "needed", but prevents sensitive parts (plastic) from being damaged.

During the desoldering process more heat is applied for a longer time than during resoldering. Therefore protection is needed during desolderding rather than during resoldering.

[TheVessapaperimuumio]

@LoMe64

Yes, and there's also the fact that the foil is easier to use when desoldering than when resoldering. In the latter the added protection might not be worth risking misplacement of chip and stuff.

Impressive work. I know my SMD work so of course I knew this is possible. But only now I believe this can be practical.

[LoMe64]

@bastard3b

Hi!

Danke für die Blumen.

Die Temperatur ist deshalb so hoch, um die Dauer möglichst klein zu halten. Das ist dann von Vorteil, wenn sich in unmittelbarer Nähe des Chips empfindliche Bauteile befinden (z.B. aus Kunststoff). Meiner Erfahrung nach leiden die weniger bei kurzer Lötdauer mit höherer Temperatur.

Wenn der CNC Dispenser fertig ist UNBEDINGT ein Video einstellen! Interessiert mich sehr! Lothar

[bastard3b]

Immerwieder eindrucksvoll ;) Aber waum so heiß? Bei mir klappt alles (auch ROHS) zwischen 220-230°

Aber habe was anderes vor:

Ich hab mir doch ne kleine CNC gebaut (video in meinen channel)

Da schnall ich mir einen Lötpasten Dispenser drauf der mir das macht ;)

Ich möchte mich ja auf CPUs, GPUs und Chipsätze "spezialisieren", und 400-800 balls drauf machen mit der hand..... ich weiß nicht ob das so toll ist ;)