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September 2000

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Subject:
Silver Epoxy Bleed on imersion Ni Au PCBs
From:
Dave Gardiner <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 20 Sep 2000 22:08:56 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (27 lines) 
We are manufacturing immersion nickel gold boards for an automotive
sensor OEM using aluminum wire bonding and snap cure silver epoxy
adhesive. We have tried to develop surface roughness standards to
predict surfaces that will not allow excessive bleed. Does anyone have
similar trouble that can exchange experiences?

Dave Gardiner
Circuit~Tech Inc.
275 Steelcase Rd. E.
Markham, Ontario
L3R1G3
905-474-9227 ext. 233

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