Hi Graham!

You're probably gonna have a heck of a time finding some sort of adaptor that will work, but I have another suggestion.

Have you ever heard of Additive Services? Go to:

http://www.additive.com/

They're a company that has a process to make wireless ECO's, meaning that they can add conductors to printed circuit boards to make design changes and you don't have to add jumper wires.

I called them and explained your issue. Basically you need some longer pads so you can get a heel fillet on the device when soldered to the PCB. They told me that it would be no problem. However, they can only work with bare boards.

He asked me what the quantity would be, and I told him I didn't know.

I talked with a gentleman named Darren Cossette at (603) 889-1999, and told him I would give you the information...

If this sounds like something that would work, give him a call...

Hope this helps ;^)

-Steve Gregory-


Good day Technet!  It's Friday and of that I am glad.

I have a new design where a part (a quad flatpack, 50 thou pitch part) does not match the pads on the board.  As-is, I can attach it but there will be no heel fillet as the heel overhangs the end of pad by a fair bit.

I have examined and discarded the three obvious options:
- re-form the part to fit: not a good option due to the fact that I'd have to straighten and then bend the leads in the opposite direction.
- buy un-formed parts and form to fit - can do, but schedule will be totally in the dustbin.
- re-spin the board to fix the pad layout - again the schedule will be totally out the window.

So - that leaves me looking for an adaptor.  Can Technetter's advise me of anyone making such beasts on a quick turn basis?  

As always, thanks.  And a good weekend wish to all.

regards

Graham Collins
Process Engineer,
Northrop Grumman
Atlantic Facility of Litton Systems Canada
(902) 873-2000 ext 6215


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