Hi

All

Watch this video by Alex. It shows how you should use the Soldering lugs/pad Strips to recreate the missing pads. You have to use solder mask to fix the strips in its place.

Crazy Repair on this expensive device. 24 broken traces

http://boardviewer.net/ or https://openboardview.org/

Posted by: @itrytofixthings

Hi

I am trying to use pad strips to replace ripped pads on the top row for a QFN IC 

How can I set the pad strips down so they don't move and can take heat from the soldering iron and hot air

Thanks all

 

You need to use a very fine tweezer or Precision probe or a blade to do that. 

https://northridgefix.com/product/super-fine-precision-tweezers-titanium-alloy-non-slip-anti-overpressure/

https://northridgefix.com/product/precision-needle-probes-straight-and-bent/

https://northridgefix.com/product/precision-surgical-blade-stick-choose-from-6-different-blades/

Posted by: @alex

Posted by: @itrytofixthings

Hi

I am trying to use pad strips to replace ripped pads on the top row for a QFN IC 

How can I set the pad strips down so they don't move and can take heat from the soldering iron and hot air

Thanks all

 

You need to use a very fine tweezer or Precision probe or a blade to do that. 

https://northridgefix.com/product/super-fine-precision-tweezers-titanium-alloy-non-slip-anti-overpressure/

https://northridgefix.com/product/precision-needle-probes-straight-and-bent/

https://northridgefix.com/product/precision-surgical-blade-stick-choose-from-6-different-blades/

Thanks for the reply

Can I use any UV mask or glue to put under the pad strip so it doesn't move and is heat resistant from the soldering iron and hot air

Thanks again

itrytofixthings,

       Highly recommend you look into IPC 7711/7721 for pad repair process and acceptability criteria. You want to repair the board substrate and tin your replacement pad first, then secure the pad to the board with non conductive epoxy or UV activated mask, cure, remove any interference from the land that would prevent wetting, and finally reinstall your component. Yes most consumer electronics are Class 1 products but workmanship and professionalism speak for themselves.

Hope this helps,
Dan
Second Chance Repairs LLC 

Posted by: @2ndchancereps

itrytofixthings,

       Highly recommend you look into IPC 7711/7721 for pad repair process and acceptability criteria. You want to repair the board substrate and tin your replacement pad first, then secure the pad to the board with non conductive epoxy or UV activated mask, cure, remove any interference from the land that would prevent wetting, and finally reinstall your component. Yes most consumer electronics are Class 1 products but workmanship and professionalism speak for themselves.

Hope this helps,
Dan
Second Chance Repairs LLC 

Thanks for the reply but the IPC stuff is really hard to find 

Posted by: @Guest

↑

itrytofixthings,

       Highly recommend you look into IPC 7711/7721 for pad repair process and acceptability criteria. You want to repair the board substrate and tin your replacement pad first, then secure the pad to the board with non conductive epoxy or UV activated mask, cure, remove any interference from the land that would prevent wetting, and finally reinstall your component. Yes most consumer electronics are Class 1 products but workmanship and professionalism speak for themselves.

Hope this helps,
Dan
Second Chance Repairs LLC 

Thank you.