Joe,

We use 5352R. They have others too which may suit your application better.
They should be able to advise you on this plus required equipment.

Regards,



> ERIC
> Do you know the the 3M part no# for this tape? I am very intrested to see
>  if
> it help with a problem i have
>
>
>
>    thankyou
>    JOE KEARY
>
> -----Original Message-----
> From: Eric Christison [mailto:[log in to unmask]]
> Sent: Monday, October 01, 2001 3:14 AM
> To: [log in to unmask]
> Subject: Re: [TN] Flex and Soldering
>
>
> We attach a flex to a ceramic substrate using a hot bar BUT using a 3M Z
> axis adhesive tape.
>
> The flex has very closely spaced pads and these were prone to shorting
>  when
> we tried hot bar soldering. We also found the adhesive gave a stronger
>  joint
> mechanically.
>
> However cycle time for hot bar - whether solder or ACF - is not that
>  good. I
> would suggest about 1 minute per joint and it is done manually although
>  a
> certain amount of automation is possible.
>
> One very large phone manufacturer told me the other week that they
> absolutley loathe the hot bar process. A yield hit of 8% on a million
>  phones
> a month gets your name in the corporate spotlights...
>
> Hope this helps,
>
>
>
> > Technet,
> >
> > Does anyone have any guidelines for soldering flex circuit directly to
>  a
> > PWB?  We currently connect it mechanically and with a connector, but
> > were toying with the idea of direct solder attach.
> >
> > Any experience, do's and don't, especially horror stories, appreciated.
> >
> > Thanks......DT
> >
> >
> >
>
>
>
> Eric Christison
>
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>

Eric Christison

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