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February 2011

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Subject:
From:
Werner Engelmaier <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Werner Engelmaier <[log in to unmask]>
Date:
Fri, 25 Feb 2011 14:07:36 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (515 lines)
 Joyce,
The best table is Table 1-1 in IPC-4562; however, be careful with these numbers—the thickness is given as 'Nominal Thickness' for a reason. ED Cu does not have a fixed density, and it also has bond enhancement treatments. And since Cu is solder by weight, foil thickness is customarily given in oz/ft2.

 Werner (former chair of the copper foil committee)


 

 

-----Original Message-----
From: Joyce Koo <[log in to unmask]>
To: [log in to unmask]
Sent: Fri, Feb 25, 2011 8:15 am
Subject: [TN] Copper oz


Guys and gals,

Any of young chaps know the table of Cu oz vs micron thickness in IPC std? I 

know what the thickness should be, but need "official" table number with a spec.  

Friday thing. Thx.  

--------------------------

Sent using BlackBerry





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

From: Wenger, George M. [mailto:[log in to unmask]]

Sent: Friday, February 25, 2011 07:56 AM

To: [log in to unmask] <[log in to unmask]>

Subject: Re: [TN] NTC Re: [TN] Something you have to see...



Steve,



You're stealing Dewy's lines.  You must be on Doug's Dew this morning.



Regards,

George

George M. Wenger

Senior Principal Reliability / FMA Engineer

Andrew Corporation - Wireless Network Solutions

40 Technology Drive, Warren, NJ 07059

(908) 546-4531 Office (732) 309-8964 Mobile

E-mail: [log in to unmask]





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

From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick

Sent: Friday, February 25, 2011 7:46 AM

To: [log in to unmask]

Subject: Re: [TN] NTC Re: [TN] Something you have to see...



Victor, 



Now you have ME in stitches!  We've got it all sewn up!



Steve Creswick

http://www.linkedin.com/in/stevencreswick







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

From: [log in to unmask] [mailto:[log in to unmask]] 

Sent: Friday, February 25, 2011 7:42 AM

To: [log in to unmask]; [log in to unmask]

Cc: [log in to unmask]

Subject: RE: [TN] NTC Re: [TN] Something you have to see...



Could stitch bonding not be a solution to this issue?



"X"



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

From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven Creswick

Sent: Thursday, February 24, 2011 2:59 PM

To: [log in to unmask]

Subject: Re: [TN] NTC Re: [TN] Something you have to see...



He's better than that ... when he has his 'Dew' on!



He may want to utilize an automatic inspection system otherwise.





Steve Creswick

http://www.linkedin.com/in/stevencreswick







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

From: TechNet [mailto:[log in to unmask]] On Behalf Of Dennis Fritz

Sent: Thursday, February 24, 2011 3:54 PM

To: [log in to unmask]

Subject: [TN] NTC Re: [TN] Something you have to see...



Can this be entered into a "Which two chips are wired alike contest"?

Another IPC prize for Apex - Maybe Clumpy can spend a week getting the

answer. 











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

From: Steve Gregory <[log in to unmask]>

To: TechNet <[log in to unmask]>

Sent: Thu, Feb 24, 2011 1:54 pm

Subject: [TN] Something you have to see...





Hi All,

 

Some of might remember last year sometime when I posted a photo of something

ne of our operators accomplished that I was simply amazed with:

 

http://stevezeva.homestead.com/files/Quad_Stack.JPG

 

I thought that couldn't have been topped, but she has once again shocked and

wed me with her skill and patience:

 

http://stevezeva.homestead.com/One_piece_of_work.JPG

 

http://stevezeva.homestead.com/One_piece_of_work_2.JPG

 

http://stevezeva.homestead.com/One_piece_of_work_3.JPG

 

I can't believe we even quoted this job, much less accomplished it. There's

024 wires there, and BTW, that's 20-mil pitch. Simply astounding.

 

Steve



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