just as I suspected - no significant difference.  If this is what Mot
concluded it's good enough for me.

Glad to find out my physics major wasn't a total waste of taxpayers
money ;-).

Thanks Jack!

Bob

----- Original Message -----
From: Jack Olson <[log in to unmask]>
To: <[log in to unmask]>
Sent: November 29, 1999 10:04 AM
Subject: Re: [DC] Horrible Terrible Mistake ...


: I found it...
: The article was published in "Surface Mount Technology" September
1993
: by Jeffrey G. Holmes, Motorola, Phoenix, AZ
:
: It was only three pages, I scanned 'em into this address:
:
: http://www.geocities.com/Heartland/Hills/5131/thermal.htm
: <http://www.geocities.com/Heartland/Hills/5131/thermal.htm>
:
:
:                 -----Original Message-----
:                 From:   Bob Landman
[mailto:[log in to unmask]]
:                 Sent:   Wednesday, November 24, 1999 10:39 AM
:                 To:     DesignerCouncil E-Mail Forum.; Jack Olson
:                 Subject:        Re:      Re: [DC] Horrible Terrible
Mistake
: ...
:
:                 Jack,
:
:                 I would be interested in seeing or hearing about
it - please
: do have a
:                 look for it.
:
:                 Thanks,
:
:                 Bob
:
:                 ----- Original Message -----
:                 From: Jack Olson <[log in to unmask]>
:                 To: <[log in to unmask]>
:                 Sent: November 24, 1999 10:49 AM
:                 Subject: Re: [DC] Horrible Terrible Mistake ...
:
:
:                 : I know the article you are talking about, I have
saved it
: for many
:                 years. I
:                 : think it was a TO220 part they used in several
different
:                 configurations with
:                 : the thermal analysis pictures (colored maps that
look like
: contour
:                 maps?)
:                 : and the results were surprising.
:                 : All my articles are in a huge box at home (we just
moved)
: but if you
:                 want me
:                 : to find it I will.
:                 :
:                 : Jack
:                 :
:                 :                 -----Original Message-----
:                 :                 From:   Abd ul-Rahman Lomax
: [mailto:[log in to unmask]]
:                 :                 Sent:   Tuesday, November 23, 1999
11:05
: AM
:                 :                 Subject:        Re: Horrible
Terrible
: Mistake ...
:                 :
:                 :
:                 :                 I've asked SMT magazine if they
were the
: ones who
:                 printed
:                 : the article about
:                 :                 this technique of improving heat
: dissipation; I
:                 could not
:                 : find it on their
:                 :                 web site index, which was not
readily
: searchable. In
:                 any
:                 : case, the
:                 :                 information in the article, as I
recall,
: had been
:                 somewhat
:                 : mangled by
:                 :                 either poor writing or poor
editing and
: some of the
:                 : technical information
:                 :                 necessary to assess the reported
results
: was
:                 missing.
:                 :
:                 :                 Next opportunity, I plan to design
a test
: board and
:                 verify
:                 : the prediction.
:                 :
:                 :                 [log in to unmask]
:                 :                 Abdulrahman Lomax
:                 :                 P.O. Box 690
:                 :                 El Verano, CA 95433
:                 :
: