FYI Works ok for me.
Randy Bock Sr.
Quality Engineer
Enterprise Quality Assurance
AddressRight Printers
(email) [log in to unmask]
Newtown Building 2
203 270-4931 Ext
8-426-4931 In
203 270-4982 Fax
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Thank You.
Victor Hernandez <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
10/06/2008 07:05 AM
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Re: [TN] Barrel and Corner cracks in copper electroplating
Unable to open files.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ido Mashall
Sent: Friday, October 03, 2008 1:13 PM
To: [log in to unmask]
Subject: [TN] Barrel and Corner cracks in copper elctroplating
Hello technet
We are suffering a serious problem of barrel and corner cracks in the
pattern copper plate bath.
Please look at the following pic. (all after 288C solder thermal stress)
http://www.drivehq.com/file/df.aspx/shareID4765976/fileID233954134/eo-d3
497-1.jpg
http://www.drivehq.com/file/df.aspx/shareID4765976/fileID233954135/es-c9
633-1.jpg
http://www.drivehq.com/file/df.aspx/shareID4765976/fileID233954138/as-d3
715.jpg
This very strange phenomenon occurs only in the second copper, and does
not occur in the panel plated copper.
After testing all bath components, they seem to be ok. CVS is oK, hull
cell is OK. It seems the copper lost its mechanical properties.
We are looking for possible contamination and changed the bath for a new
fresh bath, and it happens again after a few days..
Does somebody have some idea why this cracks can occur? What other
reasons..?
Thanks.
Ido Mashall
Fax: +972-4-6376666, Tel: +972-77-2127172,
Mobile +972-52-5901114, http://www.beyond-materials.com/index-en.htm
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