Re: soldering components on larger sized pads

Kris Krieger wrote:
Joerg <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote in
news:HQDqk.34912$co7.31745@xxxxxxxxxxxxxxxxxxxx:

Kris Krieger wrote:
[snip]
I have 2 basic "dummy" questions: - If solder is used to fill in a connection that otherwise doesn't
reach, wouldn't the difference between the conductivity of the copper
(of the component's wires/connectors and the boards tracings) create a
lot of problems?

As Joel said, ok for "normal" resistor values but not for current sense shunts and stuff like that. However, I wouldn't ship things like that because chances are that mechanical stresses will eventually fracture the solder bridge and then you've got a grumpy customer. Then another, and another ...

I'm sure it's always best to have good solid connections ;) , but it is interesting that such a thing is more tolerant than I'd expected. Good to know (in the "small errors aren't necessarily catastrophic" department ;) ).

- If a component can't reach the place on the board it's supposed to
connect to, would it be workable to solder a small additional bit of
wire that's the same material and diameter as the component's
connector?

For a prototype, why not?


I'd guess, though, that for a production item, or an item to be provided to an end-user, that sort of patch would bee too prone to breakage.

Interesting, tho' - thanks for the info ;)


Although you'd be surprised how much rework is found in regular aeronautical radios ...

--
Regards, Joerg

http://www.analogconsultants.com/

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