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May 2007

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Subject:
From:
Irving Lee <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Fri, 25 May 2007 08:52:59 +0800
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I also want to have this report .

Thanks. 



-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of arnaud grivon

Sent: Thursday, May 24, 2007 7:33 PM

To: [log in to unmask]

Subject: Re: [TN] SV: [TN] SV: [TN] Definition of Eutectic Solder



One more copy, please.





Wenger, George M. a écrit :

> Yes I would like to get a copy of the report that you r Ingemar,

>

> Yes I would like to get a copy of the report that you received from your colleague from Beijing.  It sounds like it would be interesting.

>

> Regards,

> George

> George M. Wenger

> Andrew Corporation Wireless Network Solutions Senior Principal FMA / 

> Reliability Engineer 40 Technology Drive, Warren, NJ 07059

> (908) 546-4531 [Office]  (732) 309-8964 [Cell] -----Original 

> Message-----

> From: TechNet [mailto:[log in to unmask]] On Behalf Of Frederick Miller

> Sent: Thursday, May 24, 2007 7:55 AM

> To: [log in to unmask]

> Subject: Re: [TN] SV: [TN] SV: [TN] Definition of Eutectic Solder

>

> Add me to the list.

> Fred

>

> -----Original Message-----

> From: TechNet [mailto:[log in to unmask]]On Behalf Of Victor G. Hernandez

> Sent: Wednesday, May 23, 2007 4:17 PM

> To: [log in to unmask]

> Subject: Re: [TN] SV: [TN] SV: [TN] Definition of Eutectic Solder

>

>

> I would like to view this presentation/report.

>

> Victor,

>

> -----Original Message-----

> From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord

> Sent: Wednesday, May 23, 2007 3:16 PM

> To: [log in to unmask]

> Subject: [TN] SV: [TN] SV: [TN] Definition of Eutectic Solder

>

> Richard, George, Werner etc chief gnus,

>

> Want a very advanced article on the theme SAC, IMC, Phosphorous rich 

> Ni, diffusion rate, solidifying, wetting, ENIG, crystallographic 

> pictures, SEM pictures, etched cross sections, X-ray investigations, 

> microprobing...more than 30 pages?

>

> I made a consulting job (metallurgists, need assistance) and had a two 

> hours presentation of my job. Both companies were satisfied, much 

> thanks to advice from you, but also thanks to my collegue, who is from Beijing.

> He gave me a report that lifted my eyes. I've never seen SAC/ENIG 

> cross section presentations like that. Not even from China Lake. Can 

> send offline if you are not too many. Please, be aware this is not a 

> popularised kind of presentation, but at a advanced metallographic 

> level. You may have it already...don't know, but the report is fresh.

>

> Inge

>

> -----Ursprungligt meddelande-----

> Från: TechNet [mailto:[log in to unmask]] För Werner Engelmaier

> Skickat: den 23 maj 2007 20:44

> Till: [log in to unmask]

> Ämne: Re: [TN] SV: [TN] Definition of Eutectic Solder

>

> Hi Richard,

> If you try to solder at or just above the Solidus temperature, you 

> need a long time to get wetting [it takes thermal energy to dissolve 

> the base metal into Sn], and you may not get good wetting art all. 

> That is why I recommend

> Liquidus+20C for reflow soldering to Cu, and Liquidus+35C for reflow

> soldering to

> Ni. This time above 183 recommendation of 60 to 90 sec is wrong.

>

>

>

> Werner

>

>

>

> **************************************

>  See what's free at http://www.aol.com.

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