Anand

Flash gold plating is widely available in Asia and is being used as a 
alternative to ENIG. This has been in place since early 2000s. The thickness 
is about 2 micro inches. I have worked with several OEMs using this coating 
for aluminum wire bonding and the results have been positive. Of course, if 
the process is not properly controlled, you may have serious problems. I 
always recommend continuing due diligence and incoming inspection with any 
supplier.

Best regards
Lee
JLP Consultants LLC
804 779 3389


----- Original Message ----- 
From: "Anand" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 01, 2008 5:02 PM
Subject: [TN] Electrolytic (Flash) Nickel Gold Finish


Hi All,

I want to use Alluminum WEDGE wire bonding for COB.
as the ENIG is suitable only for Gold Wire Bonding .....! which i don't 
want.

I thought about Electrolytic (Flash) Nickel Gold Finish. as alluminum wire 
bond
can be used.

but i don;t know the recommended thickness of nickel and Gold for

A) Electrolytic ?????? I didn't found any ipc std for this ?

B) Can any ONE please guide me for the thickness of this plating....!

C) again as there is no phosphurus used in electrlytic process how can we
    prevent the corrosion for this plating ?

 thanks and eagerly waiting for the answer on above three questions .....



Regards,
Anand

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