If reliability is key , use some gold plated scrap.
You could use gold plated pins , or pieces of gold-plated pcb
or pieces out of a gold plated connector.
Otherwise, solder is fine.  You can use silver solder which is easy to get.
99guspuppet


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> On Jan 20, 2012, at 9:41 PM, PICdude wrote:
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> Hi all,
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> I'm making a quick-and-dirty connector/contact that would connect a =20
> wire to an existing PCB pad (~3/8" x 1/4").  I've reduced the design =20
> to having another small piece of PCB touch the existing PCB pad, and =20
> at first I thought I'd wrap a piece of wire around the new PCB (such =20
> that the wire would touch the existing pad), but now thinking I can =20
> use a pad on the new PCB with a blob of solder on it to touch the =20
> existing pad.
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> Should I worry about oxidation?  IIRC some bulb holders used solder as =20
> a contact and that works fine.  This is a non-critical connection.  =20
> Otherwise, is there a better solder I can use?  Gold plating would not =20
> be easy/viable.  This page ( http://en.wikipedia.org/wiki/Solder ) =20
> says that Sn63PbP is used for HASL, but I don't know where I can find =20
> this in wire form or low volume.
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> Alternatively, I can put a couple holes on the new PCB and solder a =20
> solid wire across it, such that that solid wire would be the contact.  =20
> But a blob of solder would be much easier, and I need to make a few =20
> dozen of these.
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> I need the blob of solder, wire, or other to be about 0.01" to 0.03" =20
> thick, and I can't find any test-points low-profile enough.
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> Any other thoughts?
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> Cheers,
> -Neil.
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>=20
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