To the forum.

Maybe there's more to ponder. The following is in answer (not really an answer but more questions)
to a question that is pretty interesting and to an off line response from the original author.

From: [log in to unmask]
To: [log in to unmask]
Date: 12/17/98 06:56:16
Subject: RE: [TN] 0603 & 0402 assembly on flexible circuits

On 12/17/98 17:22:11 you wrote:
>
>Earl,
>
> Thanks for your comments . I did not really get many answers to my queries
>...any leads you can offer ? Any industry experts ? Contacts ?
>_______________________________________________________
>VISWANATHAN A/L NARAYANA IYER  aka Vishy
>Staff Engineer - AMT/SMT  Department,
>Energy Systems Group,ACCES
>Motorola Technology Sdn.Bhd.,
>* Phone / Voice Mail : (604) 8503566
>Fax    : (604) 6442277
>Paging center : (604) 8504223  - Pager: 381
>* mailto:[log in to unmask]
>_______________________________________________________

You know Joe. He's one of the foremost. There's Marty Jawitz and Phil Hinton. I don't know why the
flexguru did not answer but you will find him from time to time in the archives. I do a lot of the
stuff and you must have unlimited resources at the big "M".

Again, aside from hard tooling, problems exist with materials. The adhesive system really causes
problems as it cold flows at room temperature with such a low Tg. Laser cutting is an option, but
here comes the thermal again. Another "answer" is not to use coverlayers at all, but you know this
is "dangerous" unless you can get through reflow without lifting - then pot the area with some type
flexible adhesive.

The possibilities are endless just as are the challenges. I mean, 0402's and now 0201's. Why not
use Ohmega ply on the surface, or below it, as a conductor and resistor network? And on it goes.

Enjoy,

Earl Moon

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