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September 2008

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Subject:
From:
"Igoshev, Vladimir" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Igoshev, Vladimir
Date:
Fri, 19 Sep 2008 13:53:44 -0400
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I'm sorry to say, but your whole sentence sounds confusing. What so you mean by saying "easy to fail"? Any benchmarks? How do you know what the failure path is - any cross-sections/SEM/EDS have been done? How they failed (off the line/from field and so on.

Regards,

Vladimir

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Min Jun
Sent: Thursday, September 18, 2008 9:51 PM
To: [log in to unmask]
Subject: [TN] 基鹸: [TN] Copper BGA balls

  Hi all and Engelmaier,
  How do you think about the reliability of the cooper pin, like TI's
DSSMT or Tyco's CPSB.We found the solder jointer type easy to fail,
especially for lager package with few solder ball. The failure mode is
brittle fracture between Nickel layer and IMC layer.
  PLS refer to
  focus.ti.com.cn/cn/lit/an/slyt212/slyt212.pdf
  www.autosplice.com/us/autosplice/Images/SolderballAppNotes.pdf
  
  Min Jun
  H3C process engineer
  Tel:+86-010-82774234
   
  
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  -----喨周圻周-----
窟周繁: TechNet [mailto:[log in to unmask]] 旗燕 Werner Engelmaier /*
窟僕扮寂: 2008定9埖18晩 20:25
辺周繁: [log in to unmask]
麼籾: Re: [TN] Copper BGA balls
  
  Hi Reuven,
  In terms of cost reduction, it depends what you are comparing it
to---SnPb 
  soldering, BGA ball replacement, failures, etc.
  I terms of reliabilty---take a look at my reliability column in GSMT&P 
  magazine of August 2007
  
  Werner
  Future workshops:
  Reliability Issues with Lead-Free Soldering Processes, September 22, 
  Schaumburg
  Failure Mode and Root Cause Analyses Reliability (Fatigue, Brittle
Fracture, 
  ENIG), September 22, Schaumburg
  Solder Joint Reliability: Parts 1 & 4, Oct. 9, Moscow, Russia
  Solder Joint Reliability: Part 4, Oct. 17, Timisoara, Rumania
  Solder Joint Reliability: Parts 1 & 4, Oct. 22, Tallinn, Estonia
  
  
  
  **************
  Psssst...Have you heard the news? There's a new fashion blog, 
  plus the latest fall trends and hair styles at StyleList.com.
        
  (http://www.stylelist.com/trends?ncid=aolsty00050000000014)
  
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