TECHNET Archives

September 2015

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Ken Harp <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Ken Harp <[log in to unmask]>
Date:
Thu, 24 Sep 2015 17:55:43 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (75 lines)
I was so bummed out when Werner passed.  Worked with him for a few
months about a year before (hired him as a consultant at the firm I was
working at at the time) for a BGA application. Talk about brilliant, he
had a mind like a knife.

Ken
Sent from my old and busted desktop

On Thu, Sep 24, 2015, at 05:49 PM, Bev Christian wrote:
> Rongjun,
> If Werner Engelmaier were still alive he would shake his finger at you! 
> :)
> 
> Solder joint strength is not necessarily a sign of a reliable joint. It
> might or might not mean that a joint is well made but not say much about
> reliability.  For instance Ericsson (I believe) found that small (lower
> shear strength) solder joints for chip components were actually better
> because they were more ductile.
> 
> That is why you will never find an official published list of pass/fail
> solder joint strengths.
> 
> Bev
> Blackberry
> 
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Deng RongJun
> Sent: September 24, 2015 3:31 AM
> To: [log in to unmask]
> Subject: [TN] Component solder reliability
> 
> Hi Experts:
> 
> 
> 
> Is there have an industry standard for component pull/push test? What is
> standard value for each component?
> 
> 
> 
> 
> 
> RongJun Deng
> 
> Electronics Engineer
> 
> Design Link
> 
> BB Electronics (Suzhou) Co., Ltd., EMS - from idea to solution
> 
> 
> 
> Block E, No.58 Yangdong Road, Loufeng, Suzhou Industrial Park- 215122
> Suzhou - P.R.China
> 
> Office:  +86 512 6956 2880 - Direct:  +86 512 6956 0125     - Fax:  +86
> 512 6715 7266
> 
> 
> 
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
> 
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please contact helpdesk at x2960 or [log in to unmask] 
> ______________________________________________________________________

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

ATOM RSS1 RSS2