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Subject:	Re: ENIG FINISH SPEC'S
From:	Gerard O'Brien <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Fri, 6 Dec 2002 11:23:35 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (50 lines)

Jeffrey - the new ENIG spec IPC 4552 recommends the minimum Au to be 2
microinches at -4 standard deviation from the mean (typical value being 3 to
5 ) and for nickel to be 120 to 240 microinches. There is no recommendations
based on part type.

Gerard O'Brien
co-chairman 4552 committee
Photocircuits corp.

-----Original Message-----
From: McGlaughlin, Jeffrey A [mailto:[log in to unmask]]
Sent: Friday, December 06, 2002 10:54 AM
To: [log in to unmask]
Subject: [TN] ENIG FINISH SPEC'S


What are the standard finish thickness for Electroless Nickel/Immersion Gold
for fine pitch (0.75mm) BGA boards?

Jeffrey A. McGlaughlin CID
Sr. Designer
Battelle Memorial Institute
Columbus Ohio
[log in to unmask]

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