Yes, IMC layers readily measurable from a few tens of nm. Careful x-section prep needed, can identify most elements of interest at sub-micron level using EDS also.
Stewart
Stewart McCracken
Managing Director | MCS | Solving your Materials, Manufacturing and Reliability Issues
[log in to unmask] | www.themcsgroup.co.uk | +44(0)131 440 9090 | +44(0)771 154 1735
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: 16 September 2015 18:05
To: [log in to unmask]
Subject: Re: [TN] ENEPIG Question?
Can this IMC formation be measured at a microscopic level?
Victor,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gumpert, Ben
Sent: Wednesday, September 16, 2015 12:01 PM
To: [log in to unmask]
Subject: Re: [TN] ENEPIG Question?
Jeffrey,
Pd also dissolves into the joint, and again you are forming an intermetallic with the nickel.
Ben
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Jenkins, Jeffrey A @ CSG - LINKABIT
Sent: Wednesday, September 16, 2015 12:02 PM
To: [log in to unmask]
Subject: EXTERNAL: [TN] ENEPIG Question?
Hi All,
Quick question, with an ENIG finish, I know the gold dissolves into the joint and we solder to the Ni.
But what about ENEPIG? I'm assuming the Au will dissolve, but what happen with the Pd? Does it stay put or also dissolve into the joint?
Inquiring minds want to know.
Thanks,
-Jeffrey
Jeffrey A. Jenkins
Sr. PCB Staff Designer, CID+/CIT
L-3 Communications, Linkabit Division
Work: 858-552-9832
Email: [log in to unmask]
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