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August 2009

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Subject:
From:
Joe Fjelstad <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Wed, 5 Aug 2009 18:00:31 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (454 lines)
Hi Anil
 
Interesting observation. I'd have to agree that there is a "stream of  
consciousness" aspect to the dialog that James Joyce would have  likely 
appreciated but wading (slogging?) through Ulysses again is  something I am not sure 
I could do. Once to the top Everest is enough... ;-)  Good luck with it. 
 
Cheers, 
Joe
 
 
 
In a message dated 8/5/2009 12:06:58 P.M. Pacific Daylight Time,  
[log in to unmask] writes:

This exciting  interchange 

Quote

Yap.  Sit, wait, fire US with high  power.  Not something nice to have.  Too
much  dumping."JK"

"Wild!!!

Steve"

Unquote

reminded me  of the original Joyce - J.K writes close to James - enigmas and
puzzles for  non bonders like me.

And Stephen is taken up with the Joycean dream.  Ulyses part 2.

Thanks folks fr the awakening. I am going to read it  again. 

Imagine - TN spinning off to heavy lit -  

Anil

-----Original Message-----
From: Steven Creswick  [mailto:[log in to unmask]] 
Sent: Wednesday, August 05, 2009  22:40
Subject: Re: Wire bond

Let me know of you hear of one  [non-bean counter] in my area!

-----Original Message-----
From:  TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo
Sent: Wednesday,  August 05, 2009 12:59 PM
To: [log in to unmask]
Subject: Re: [TN] Wire  bond

Not work for a bean counter is a big advantage to prolong life.  
--------------------------
Sent using BlackBerry


-----  Original Message -----
From: TechNet <[log in to unmask]>
To:  [log in to unmask] <[log in to unmask]>
Sent: Wed Aug 05 10:18:45  2009
Subject: Re: [TN] Wire bond

And that's why I hired Joyce.  
Bev
RIM

----- Original Message -----
From: TechNet  <[log in to unmask]>
To: [log in to unmask]  <[log in to unmask]>
Sent: Wed Aug 05 10:11:14 2009
Subject: Re: [TN]  Wire bond

Joyce,

The 'law of bean-counters' is the same all over  too.  I would like to see
them work around the problem and come up  with a viable & reliable solution!
They also don't always understand  the old adage - "garbage in-garbage out",
thinking that cheapest is always  best.

I guess in some ways that applies to employment as well.   Seems like many
firms nowadays opt for the cheap, inexperienced individuals  and disregard
the experienced ones [excluding Steve Gregory].   

I find that one usually gets what you pay for...  Experience  doesn't always
come from a book, or a forum [although it can certainly  help!].  Some of 
the
greatest, most valuable learning experiences are  those hardest learned.  
I'm
sure we can each relate to that.

It  seems silly not to pass knowledge along [unless it is proprietary,  
etc].
Why waste energy/time/$ when we could bump ourselves up to the next  level 
of
creativity/productivity/technology...

Steve  C

-----Original Message-----
From: Joyce Koo [mailto:[log in to unmask]]  
Sent: Wednesday, August 05, 2009 9:53 AM
To: [log in to unmask];  [log in to unmask]
Subject: Re: [TN] Wire bond

Good to know  the law of physics didn't change across the boarder.  Thx to
confirm  the method.  Bean counter didn't like it, take few micro second
longer  per bond.  Impact on throughput.  Of course, the bean counter  never
bond a single wire in his life.  
--------------------------
Sent using BlackBerry


-----  Original Message -----
From: TechNet <[log in to unmask]>
To:  [log in to unmask] <[log in to unmask]>
Sent: Wed Aug 05 08:12:29  2009
Subject: Re: [TN] Wire bond

Joyce,

Exactly!!   You've learned the hard way too!  Took me a while to figure it
out,  but it is something I've never forgotten!

Very similar to bonding a  MEMs device, attached with RTV.   Wild!!!

Steve

-----Original Message-----
From: Joyce Koo  [mailto:[log in to unmask]] 
Sent: Tuesday, August 04, 2009 9:40 PM
To:  [log in to unmask]; [log in to unmask]
Subject: Re: [TN] Wire  bond

Yap.  Sit, wait, fire US with high power.  Not something  nice to have.  Too
much dumping.  
--------------------------
Sent using BlackBerry


-----  Original Message -----
From: TechNet <[log in to unmask]>
To:  [log in to unmask] <[log in to unmask]>
Sent: Tue Aug 04 19:05:16  2009
Subject: Re: [TN] Wire bond

Joyce,

Even an acrylic PSA  can get a little squishy at thermosonic temps.  

Have you had to  deal with stiffeners attached with silicone in the  past?

Steve

-----Original Message-----
From: TechNet  [mailto:[log in to unmask]] On Behalf Of Joyce Koo
Sent: Tuesday, August 04,  2009 2:48 PM
To: [log in to unmask]
Subject: Re: [TN] Wire  bond

Attached with silicone?

-----Original Message-----
From:  TechNet [mailto:[log in to unmask]] On Behalf Of Steve Kelly
Sent: Tuesday,  August 04, 2009 1:55 PM
To: [log in to unmask]
Subject: Re: [TN] Wire  bond

Hi Inge 
- flex? -  18 micron copper on adhesiveless  kapton - stiffener
underneath.
Regards Steve

-----Original  Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of  Inge
Sent: August-04-09 1:52 PM
To: [log in to unmask]
Subject: Re: [TN]  Wire bond

Ceramic : No
FR-4 : No
LTCC: No
Glass:  No
Steel:  No
Teflon: Yes

/Inge


----- Original  Message ----- 
From: "Steve Kelly" <[log in to unmask]>
To:  <[log in to unmask]>
Sent: Tuesday, August 04, 2009 5:36 PM
Subject:  [TN] Wire bond


Good Morning,

Does the size of a wire bond  pad (in this case with a perfect etch .002 
wide) have any effect on  whether the wire bonder does Al wedge or 
Thermosonic gold( I know the gold  plating is different) - just asking
about 
the process. Thanks. Steve  Kelly



Steve Kelly (PLEASE NOTE NEW E-MAIL ADDRESS)

(416)  750-8433 (work)

(416) 750-0016 (fax)

(416) 577-8433  (cell)




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