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>
>Can someone define what is meant when Wirebondable gold plating is
>required?..Does this define a specific type of deposit chemsitry?
>Is this refering to a thickness issue?
>
Hi Doug,
Usually this means a 30 to 50 uinches of pure soft gold. It can be achieved by
electroplating or electroless plating. A 100-200 nickel diffusion barrier
is also
a common standard.
Wirebonding requires (for best performance) a pure deposit, a contamination
free surface and uniform coverage/thickness.
If you need more info or a source for such surface finishing please feel
free to
give me a call.
Denis Dionne
IBM Bromont Ltd
Phone:(514) 534-6724 Fax:(514) 534-7300
[log in to unmask]
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