Not aware of any data (but I'm sure it's out there) except for internal
process capabilities and such.

Typically the only thing we do different when plating thick copper boards is
increase the drilled hole size to allow for additional copper, keeping in
mind of course the holes will be different if  you're using 1 ounce and
plating an additional 2 - 3 ounces as opposed to 2 ounce plating up 1 - 2
ounces...

We've never had any hole wall issues...

Franklin


----- Original Message -----
From: "No Name" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, May 12, 2003 11:44 AM
Subject: [TN] Plating holes of boards with 3oz copper layers


> Does anyone know where I could get supporting data that points to the
> minimum thickness of hole wall copper plating for boards that have 3 or 4
> oz copper layers?
>
> Will we have problems if we plate 1 mil of copper in holes of boards that
> have 3 or 4 oz layers? If so, what kind of problems?
>
> Could we get inner-layer separation from the hole wall?
>
> ---------------------------------------------------
> Technet Mail List provided as a free 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/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 1.8e
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/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------