Immersion Silver over 100 micro inches of NI.
James Hofer
Director of Operations
Accurate Circuit Engineering
3019 S. Kilson Dr.
Santa Ana Ca. 92707-4202
714-546-2162 work
714-473-6127 cell
[log in to unmask]
----- Original Message -----
From: "Wenger, George M." <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, November 04, 2004 12:19 PM
Subject: Re: [TN] Immersion Silver
Lee,
I missed that it the first time that is why I asked if they wanted 100u" or
100um. He isn't aking for 100u" of immersion silver he would like immersion
silver over 100u" of Ni
Regards,
George
George M. Wenger (908)-546-4531
Reliability / FMA Engineer
Base Station and Subsystems Group
Andrew Corporation, 40 Technology Drive, Warren, NJ 07059
[log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Lee Parker
Sent: Thursday, November 04, 2004 3:07 PM
To: [log in to unmask]
Subject: Re: [TN] Immersion Silver
James
100 microinches is far beyond the capability of any immersion process.
Once the host surface is coated by the attracted material there is no
long a driving force between the host and the bath. In fact 10
microinches is normally very difficult. Perhaps the customer is looking
for electroplated silver.
Best regards
Lee
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of James Hofer
Sent: Thursday, November 04, 2004 2:34 PM
To: [log in to unmask]
Subject: Re: [TN] Immersion Silver
Customer states 100 micro inches and the purpose of the NI is due to
heat
from the flip chip package.
James Hofer
Director of Operations
Accurate Circuit Engineering
3019 S. Kilson Dr.
Santa Ana Ca. 92707-4202
714-546-2162 work
714-473-6127 cell
[log in to unmask]
----- Original Message -----
From: "Wenger, George M." <[log in to unmask]>
To: "James Hofer" <[log in to unmask]>; <[log in to unmask]>
Sent: Thursday, November 04, 2004 11:33 AM
Subject: RE: [TN] Immersion Silver
James,
Is your customer asking for 100 microns or 100 microinches? Does you
customer want this surface finish for soldering or for wirebonding?
Regards,
George
George M. Wenger (908)-546-4531
Reliability / FMA Engineer
Base Station and Subsystems Group
Andrew Corporation, 40 Technology Drive, Warren, NJ 07059
[log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of James Hofer
Sent: Thursday, November 04, 2004 1:41 PM
To: [log in to unmask]
Subject: [TN] Immersion Silver
I have a customer asking for Imm Silver over 100um NI. I am concerned
putting the Silver over the NI as it may lift or peel. This is the first
time I have had this kind of request. Have any of you well informed Tech
Heads heard of this before???
ps. This customer also asked for OSP over the Silver over the NI. I KNOW
that is not done.
Thanks for any feedback,
James Hofer
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