You PCB supplies never tell you the OSP finish tips.

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Most new PCB guy knows OSP finish.
But there really don't know the OSP finish technology.
Jim is just pointing to most of new PCB manufacturers guys don't know the OSP definition.

OSP finish is not short for Organic Surface Protection finish.
It's look like a very professional definite word.
But it's really wrong use method.

OSP finish means OSP board finish or OSP PCB finish.
Exactly OSP finish technology is one of surface finish type.
In fact this is a very normal prototype PCB.

So far the definition of OSP finish.
If you have read our HTD circuits articles.
You must know OSP is short for Organic Solderability Preservatives.
It's just the normal type surface finish technology.

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