Wrong. Approx. 40 uinches to a micron.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor G. Hernandez
Sent: Monday, November 28, 2005 6:49 AM
To: [log in to unmask]
Subject: Re: [TN] Intermetallic Layer
Microns are smaller units of measure than MICRO INCHES.
Victor,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Wenger, George M.
Sent: Monday, November 28, 2005 5:34 AM
To: [log in to unmask]
Subject: Re: [TN] Intermetalic Layer
Gil,
I think you meant microinches and not microns. An intermetallic layer
that was 8 microns thick after reflow would be 320 microinches thick and
which is in many cases thicker than the SnPb plating typically put on
component leads.
Regards,
George
George M. Wenger, Andrew Corporation
Reliability / FMA Engineer
Base Station & Subsystems Group
40 Technology Drive, Warren, NJ 07059
(908) 546-4531 [log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Zilber Gil
Sent: Monday, November 28, 2005 6:05 AM
To: [log in to unmask]
Subject: Re: [TN] Intermetalic Layer
Hi Antonio,
The max thickness should not exceed 6 micron. Any reflow stage add about
2 micron to the intermetalic layer.
Regards,
Dr. Gil Zilber
Technologist, Elta system Ltd.
Tel. +972-8-8577240
Mobile +972-54-4983222
http://www.iai.co.il/site/en/iai.asp?pi=17887
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of antonio
Sent: Monday, November 28, 2005 12:56 PM
To: [log in to unmask]
Subject: [TN] Intermetalic Layer
Please
Does anyone know how thick an intermetalic layer should be for tin/lead
and leadfree ?
Thanks
Antonio/INPE/Brazil
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