Subject: | |
From: | |
Reply To: | (Designers Council Forum) |
Date: | Wed, 9 May 2007 11:00:22 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
And the trace width...?
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
Patrick Jabbaz
Sent: Wednesday, May 09, 2007 10:35 AM
To: [log in to unmask]
Subject: Re: [DC] .5mm BGA fanout
Mark,
Very recently I had a .5mm BGA and I used micro vias all the way through
top to bottom layer .060" thick board 6 layers only at the BGA location,
I did check with the fab house and gave them the option of reducing the
board thickness to .040" if necessary, I was told that no need for that
they can do it in production run Taiwan.
I used this size microvia
hole size 5mils +2/-5
Pad size 11.81 mils
For the BGA Pad size I used Dia 0.25mm
-Patrick
Mark Eckert wrote:
> Has anyone fanned out a .5mm bga with just micro vias and thru hole
vias?
> or maybe without buried vias at all and with blind?
> I have a 456pin bga, 5 rows on the outer and a 6x6 cluster in middle.
>
> Thanks,
>
> ----------------------------------------------------------------------
> ----------- DesignerCouncil 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 DesignerCouncil.
> To temporarily stop/(restart) delivery of DesignerCouncil send: SET
> DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org
> > On-Line Resources & Databases > E-mail 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
> 847-615-7100 ext.2815
> ----------------------------------------------------------------------
> -----------
>
>
--
Patrick Jabbaz
Ubiquiti Networks
495-499 Montague Expwy
Milpitas, CA 95035
T: (408) 942-3085
M: (408) 621-6533
------------------------------------------------------------------------
---------
DesignerCouncil 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
DesignerCouncil.
To temporarily stop/(restart) delivery of DesignerCouncil send: SET
DesignerCouncil NOMAIL/(MAIL) Search previous postings at: www.ipc.org >
On-Line Resources & Databases > E-mail 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 847-615-7100
ext.2815
------------------------------------------------------------------------
---------
---------------------------------------------------------------------------------
DesignerCouncil 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 DesignerCouncil.
To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL)
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 847-615-7100 ext.2815
---------------------------------------------------------------------------------
|
|
|