Good Halloween scary monster!  Maybe I could dress up like that?

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Wednesday, October 27, 2010 9:35 AM
To: [log in to unmask]
Subject: Re: [TN] Cracks in BGA solderjoints

Hi Guenter,

Your pictures are now up:

http://stevezeva.homestead.com/P_2a.jpg

http://stevezeva.homestead.com/P_2b.jpg

http://stevezeva.homestead.com/SaiaNr2_CS6_End_of_crack.jpg

http://stevezeva.homestead.com/SaiaNr2_7_short_failure.jpg

Steve

-----Original Message-----
From: Grossmann, Guenter [mailto:[log in to unmask]]
Sent: Wednesday, October 27, 2010 8:14 AM
To: Steve Gregory
Subject: AW: [TN] Cracks in BGA solderjoints

Hi Steve

Thanks for your help

Günter


>-----Ursprüngliche Nachricht-----
>Von: Steve Gregory [mailto:[log in to unmask]]
>Gesendet: Mittwoch, 27. Oktober 2010 13:08
>An: 'TechNet E-Mail Forum'; Grossmann, Guenter
>Betreff: RE: [TN] Cracks in BGA solderjoints
>
>Hi Guenter,
>
>If you send the pictures to me I'll put them up on my web page then
>post the link so everyone can see them.
>
>Steve Gregory
>
>-----Original Message-----
>From: TechNet [mailto:[log in to unmask]] On Behalf Of Grossmann, Guenter
>Sent: Wednesday, October 27, 2010 3:37 AM
>To: [log in to unmask]
>Subject: [TN] Cracks in BGA solderjoints
>
>Hi Technetters
>
>I have an effect in BGA solder joints that I have never seen before.
>In microsections and in FIB preparations I see cracks between the IMC
>and a slightly darker region towards the Ni which I assume to be a P
>enriched zone of the Ni. However, the cracks are somewhere in the width
>of the solder joint and they are quite short running out to a row of
>pores that look somehow like Kirkendall voids.
>Is there still a possibility to place one or two pictures? Kim's IPC
>site doesn't work.
>
>Best regards
>
>Günter
>
>
>
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