I somehow removed all the solder from a point on a circuit board.. how do I fix it.

[TheGizmo]

So there is this really tiny point on a PCB that I'm trying to solder.. and while trying to attach a wire to the point, I managed to remove all the solder from it so now there is just a small dip in the circuit board that solder will not stick to.

I've tried cleaning it with rubbing alcohol, that didn't help at all.

Any ideas? Thanks

 

[effowe]

Well if you lifted the pad you can no longer solder to that point. You will have to either solder it to the trace, or follow the trace to the chip and solder directly to the chip.

 

[TheGizmo]

Originally posted by: effowe
Well if you lifted the pad you can no longer solder to that point. You will have to either solder it to the trace, or follow the trace to the chip and solder directly to the chip.

damn thats what I was afraid of.. the trace is uber-small and no way I can get it to only that trace... and the chip has like 1000 points on it, also near impossible to solder a wire to only one of the points I think i'm screwed

 

[TheKub]

Mod chip?

 

[TheGizmo]

Originally posted by: TheKub
Mod chip?

yeeep

 

[effowe]

Originally posted by: TheGizmo

Originally posted by: TheKub
Mod chip?

yeeep

Wii modchip? I did the same thing when trying to install my WiiKey. I just ended up taking it to a local installer and he soldered directly to the chip, takes some skills there.

 

[TheGizmo]

Originally posted by: effowe

Originally posted by: TheGizmo

Originally posted by: TheKub
Mod chip?

yeeep

Wii modchip? I did the same thing when trying to install my WiiKey. I just ended up taking it to a local installer and he soldered directly to the chip, takes some skills there.

yup exactly.. god damn wiikey and their quicksolder design.. a wired chip would have been so much easier

 

[SSSnail]

You're using the wrong kind of solder.

 

[TheKub]

Dont have to quick solder. I used wire.

 

[slpaulson]

You might be able to scratch some of the soldermask off from the trace and solder to that, otherwise if the chip is 0.5mm pitch or bigger, soldering to the chip isn't that tough.

 

[TheGizmo]

Originally posted by: cRazYdood
You might be able to scratch some of the soldermask off from the trace and solder to that, otherwise if the chip is 0.5mm pitch or bigger, soldering to the chip isn't that tough.

yea unfortunately my soldering skills are limited.. the trace is very close to two other traces on either side.. so its very difficult to get in there. I just wish there was a way to refill the dip with solder again

 

[TheGizmo]

Originally posted by: SSSnail
You're using the wrong kind of solder.

what kind am i supposed to use? im using some pretty thin solder. i actually thought the problem was that my soldering iron tip is too big.. but its the smallest one I can buy at radio shack. i wish they made a soldering iron tip in the diameter of a paperclip

 

[DeMeo]

Duct tape

 

[SSSnail]

Originally posted by: TheGizmo

Originally posted by: SSSnail
You're using the wrong kind of solder.

what kind am i supposed to use? im using some pretty thin solder. i actually thought the problem was that my soldering iron tip is too big.. but its the smallest one I can buy at radio shack. i wish they made a soldering iron tip in the diameter of a paperclip

Just ask the guys at Radio Shack, they'll recommend something else.

 

[TheGizmo]

Originally posted by: SSSnail

Originally posted by: TheGizmo

Originally posted by: SSSnail
You're using the wrong kind of solder.

what kind am i supposed to use? im using some pretty thin solder. i actually thought the problem was that my soldering iron tip is too big.. but its the smallest one I can buy at radio shack. i wish they made a soldering iron tip in the diameter of a paperclip

Just ask the guys at Radio Shack, they'll recommend something else.

thats what I did :-/

 

[sygyzy]

Sorry you're out of luck. There is no way that I am aware of to restore a solder point.

 

[xgsound]

If the pad is gone use "trace wire" (.035 inch I think) to attach to the (solder it on) trace or thru the board if it connects on the other side. They have "micro tips" for irons that have a 1/16 inch projection on the end.

Freshly tin your tip and wipe with a moist rag immediately before each solder joint to insure clean tip and effective temperature exchange.


Jim

 

[NaOH]

hire some midgets