The first day I met Werner was when my manager at Honeywell introduced him to me and told me he would be my manager temporarily while we were working through some issues on the A-12 stealth program. Werner said we should sit down and go through some of the problems that were being seen and my manager agreed. 
So we went golfing! We had to have a cart because, as Werner said, we were to sit down and discuss these things. 
He was the best manager I ever had. His mind was, as you described, like a razor. He could cut through the crap and get to the root cause(s) of a problem better than anyone I have ever met.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ken Harp
Sent: Thursday, September 24, 2015 7:56 PM
To: [log in to unmask]
Subject: Re: [TN] Component solder reliability

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
> 
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