Geoff and Colin:
Thanks for your help. We were not aware of the finishing router.
Sona
----- Original Message -----
From: "Geoff Layhe" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 13, 2004 4:39 AM
Subject: Re: [TN] Castellation boards
> Sona,
> The address is
> www.hptec.de once you're in go to "Application Engineering" "routers"
> "contour finishing router 876". You will need to rout close to the
finished
> dimension with a normal router and finish with the 876. I guess other
drill
> bit manufacturers do this type but this is the one I know.
>
> hope this helps
>
> Geoff Layhe
> Lamar Group Ltd
>
> -----Original Message-----
> From: Fineline Circuits, Inc. [mailto:[log in to unmask]]
> Sent: Tuesday, October 12, 2004 5:45 PM
> To: [log in to unmask]
> Subject: Re: [TN] Castellation boards
>
>
> Geoff:
> Yes we are routing the castellation holes after electroless. We understood
> that if we did after plating we will have more burrs but I will look into
> these special routers. Can I have HP-Tec's number. I did google search but
> they may not have a website.
> Thanks
> Sona
>
> ----- Original Message -----
> From: "Geoff Layhe" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, October 12, 2004 12:06 PM
> Subject: Re: [TN] Castellation boards
>
>
> > Are you routing through the castellated holes after electroless?
> > It might be better if you plated all the hole and only routed through to
> > form the castellations at the end. There are special routers available
> which
> > will do the job, I know that HP-Tec have one and there are probably
> others.
> >
> > hope this helps
> > Geoff Layhe
> > Lamar Group
> >
> > -----Original Message-----
> > From: Fineline Circuits, Inc. [mailto:[log in to unmask]]
> > Sent: Tuesday, October 12, 2004 3:59 PM
> > To: [log in to unmask]
> > Subject: [TN] Castellation boards
> >
> >
> > I would like to know how to accomplish burr free plated castellation tab
> > routing and or scoring.
> > We are seeing plating slivers coming off during masking. Our process is
> > drill, electroless, tab route array, copper flash, image , second plate
> > copper and tinlead, etch, mask and route array. The design is such that
> > copper extends all the way to the edge of the board. Tab routing after
> > electroless we see a burr free edge but after strike and second plate,
the
> > copper foil on the edge gets overplated and when we go to mask we run
into
> > sliver problems. Even if we recess the copper a bit from the edge of
the
> > board (5mls) than in imaging we are having problems for the 5ml laminar
> to
> > adhere to the edge of the board after developing.
> > Material is FR4.
> > Appreciate your input.
> > Sona Sitapara
> >
> > ---------------------------------------------------
> > Technet Mail List provided as a service by IPC using LISTSERV 1.8e
> > To unsubscribe, send a message to [log in to unmask] with following text
in
> > the BODY (NOT the subject field): SIGNOFF Technet
> > To temporarily halt or (re-start) delivery of Technet send e-mail to
> > [log in to unmask]: SET Technet NOMAIL or (MAIL)
> > To receive ONE mailing per day of all the posts: send e-mail to
> > [log in to unmask]: SET Technet Digest
> > Search the archives of previous posts at:
http://listserv.ipc.org/archives
> > Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16
> > for additional information, or contact Keach Sasamori at [log in to unmask]
or
> > 847-509-9700 ext.5315
> > -----------------------------------------------------
> >
> >
> > Private & Confidential:
> > This e-mail message is confidential and is intended solely for the
person
> or
> > organisation to whom it is addressed. If the message is received by
> anyone
> > other than the addressee please return the message to the sender by
> replying
> > to it and then delete the message from your computer.
> >
> > ---------------------------------------------------
> > Technet Mail List provided as a service by IPC using LISTSERV 1.8e
> > To unsubscribe, send a message to [log in to unmask] with following text
in
> > the BODY (NOT the subject field): SIGNOFF Technet
> > To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> > To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> > Search the archives of previous posts at:
http://listserv.ipc.org/archives
> > Please visit IPC web site
http://www.ipc.org/contentpage.asp?Pageid=4.3.16
> for additional information, or contact Keach Sasamori at [log in to unmask] or
> 847-509-9700 ext.5315
> > -----------------------------------------------------
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 1.8e
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
> for additional information, or contact Keach Sasamori at [log in to unmask] or
> 847-509-9700 ext.5315
> -----------------------------------------------------
>
>
> Private & Confidential:
> This e-mail message is confidential and is intended solely for the person
or
> organisation to whom it is addressed. If the message is received by
anyone
> other than the addressee please return the message to the sender by
replying
> to it and then delete the message from your computer.
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 1.8e
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
> -----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------
|
