Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Mon, 30 Oct 2000 17:36:11 -0600 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
It's a little confusing...but then I'm not the expert.
In regards to exposed vias...the artwork will dictate what vias are to
be exposed and/or plugged so the mention of that in the notes may
confuse the issue. Stating Green LPI IAW SM-840 should be enough in most
cases I would suspect. Your comment on 'associated vias'...what exactly
are 'associated vias? Is this all vias on a commen net?
Hope the critique helps some.
Franklin
Ken Patel wrote:
>
> Fab Expert,
> Is the following fab note make sense to you or should I also mention
> the plugging side as I do not want higher surface on fine-pitch side. Also,
> comment on use of SR1000 epoxy in my fab note.
>
> SOLDERMASK: GREEN PHOTOIMAGEABLE, BOTH SIDES PER IPC-SM-840, CLASS
> 3. ALL TEST-VIAS AND ASSOCIATED PADS ARE TO BE FREE OF SOLDERMASK. ALL
> NON-TEST VIA HOLES TO BE PLUGGED WITH SR1000 OR EQUIVALENT EPOXY.
>
> re,
> ken patel
>
> ---------------------------------------------------------------------------------
> Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
> Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
> information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
> ---------------------------------------------------------------------------------
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
|
|