Try assembly.net and smtnet.com.

Thanks,
Kathy Palumbo

> ----------
> From:         Paul Terranova[SMTP:[log in to unmask]]
> Sent:         Wednesday, March 18, 1998 7:10 AM
> To:   [log in to unmask]
> Subject:      Re: [TN] leadframe materials
>
> Jan,
>
> Is there really a Chipnet? How can those of us interested subscribe to
> this forum? I've been looking for other forums similar to Technet
> related to the microelectronics industry. If anyone else has any other
> good recommendations, please let me know.  Thanks.
>
> Paul Terranova
> Analytical and Environmental Test Services Lab
> Worldwide Module Components Group
>
>  Digital Equipment Corp
>  200 Forest Street
>  Mail Stop: MRO3-1/D2
>  Marlboro,  MA  01752-3085
>
> '    Phone: (508)467-3109
> * Fax: (508)467-6796
> * Email: [log in to unmask]
>
>         -----Original Message-----
>         From:   Jan Vercammen [SMTP:[log in to unmask]]
>         Sent:   Monday, March 16, 1998 9:16 AM
>         To:     [log in to unmask]
>         Subject:        [TN] leadframe materials
>
>         hello,
>
>         I have a few questions concerning package leadframe materials
> of
> integrated
>         circuit packages. I have subscrided only recently to ChipNet
> and
> I will
>         submit the same questions there. However, some of the
> subscribers on TechNet
>         may have valuable info on the subject.
>
>         -1- are non-copper materials (e.g.Invar, Kovar or Alloy-42
> which
> are Fe-Ni
>             alloys) still used alot for leadframe design of surface
> mount devices?
>             What is the percentage of copper leadframes on the market
> today?
>         -2- is there a finish used for copper leadframes and, if so,
> what materials
>             are used and what is the covered thickness?
>         -3- who has information on or can list references or
> literature
> on the complex
>             permeability of non-copper leadframe materials (
> (e.g.Invar,
> Kovar or
>             Alloy-42)
>
>         All help, however small is appreciated.
>
>
>         regards,
>
>         Jan Vercammen
>
>
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