Hi Cheryl,

I can't speak to the wire bonding, but I do know that some OSP's bring
Copper into solution which allows the OSP to bond to the Gold.  On
occasion, the OSP coating on the Gold CAN be enough to enough to prevent
electrical contact between an edge connector and socket.  There exists
OSP formulations that do NOT coat the Gold plating.  So with the right
formulation, it might be possible.  Otherwise, buyer beware!

-Ryan Grant

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Cheryl Johnson
Sent: Thursday, July 06, 2006 12:42 PM
To: [log in to unmask]
Subject: [TN] osp over gold bond pads

Does any one have any experience they care to share with OSP over
electroplated gold bond pads (on FLEX)?
It would save us 5 cents each if the gold pads didn't have to be masked
before the OSP is applied...
Thank you for your help!
Sincerely,

-----------------------------------

Cheryl Johnson, C.I.D.+

Manager

ExcelStor US Office, Engineering Services

Email: [log in to unmask]

Tel: (303) 684-7291

Fax: (303) 684-7268

Mobile: (303) 809-5815

-----------------------------------


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