There are several companies that can print a solderable pad to the PCB with
traces allowing the placement and soldering of the addtional components in
the normal assembly process.
Far more reliable than hand soldering wires to a chip component.
I have used this on communication equipment and high speed computors.

It is easier to do this task with a through hole component. The PTH
component has leads to solder to without cracking the ceramic body. There is
more room to glue the body down.

On Mon, Apr 18, 2011 at 4:25 AM, Andrzej Zielinski <[log in to unmask]> wrote:

> Dear Technetters,
>
> Our part supplier sent a notification document stating that the component
> we are currently using become an obsolete part and it won't be manufactured
> anymore.
>
> ENG department have to re-design the product by adding an extra resistor
> component (size 0603 or 0805) glued somewhere on the PCB.
> This resistor won't be attached/soldered to any of PCB's pads just to be
> glued on the solder mask with SMT glue.
> Two cables will be soldered to this resistor and correspondent devices.
>
> QUESTION(S)??
> Would this modification (gluing a resistor on the soder resist) comply with
> IPC-A-610 class 3 requirements providing appropriate
> ECO instruction will be in place showing how to perform product
> modification?
> ENG need to answer a question regarding environmental condition, I suppose
> it will be ok.
> Product functionality is the same.
>
> Thanks in advance for your opinion....
> Andy
>
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