[PCB_FORUM] Re: .8-MM BGA Geometry
- From: "Dave Schaefer" <dave.schaefer@xxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Wed, 14 Sep 2005 17:52:54 -0500
Rich,
Saw your earlier e-mail, and what you're working with isn't bleeding
edge at all.
As Dave Price pointed out, almost any fabricator still in the game in
North America can handle your design.
I mentioned Tech as they have a good reputation and are in your area.
For footprint resources, see :
http://www.pcblibraries.com/
They have a IPC-7351 Viewer you can download for free ( IPC-7351 is the
new footprint standard).
There is also a document that describes the footprint naming convention
on the site you should grab.
Thanks,
Dave Schaefer
dave.schaefer@xxxxxxx
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Richard E
Marion
Sent: Wednesday, September 14, 2005 6:57 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: .8-MM BGA Geometry
Hello Dave,
Went to their Website. Very informative, particularly the "Manufacturing
Capabilities". Will recommend to my client.
Been in and out of the PCB Design Business for the last two years (a
story in itself). Do you have any links to good (free) BGA Footprint
Recommendations?
Much Appreciated,
Richard E Marion
169 Little Mill Road Unit 2
Sandown NH 03873-2554
HOME: 603-887-2266
CELL: 603-247-1610
FAX : 603-887-2936
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Dave Schaefer
Sent: Tuesday, September 13, 2005 8:01 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: .8-MM BGA Geometry
Rich,
Check with Tech Circuits in CT - very good fab shop that can handle
either thru vias or via in pad (HDI) designs.
I did a few .5mm and .65mm designs with them a few years back , both
thru and HDI structures.
http://www.techcircuits.com/index1a.php
Dave Schaefer
dave.schaefer@xxxxxxx
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Richard E
Marion
Sent: Tuesday, September 13, 2005 5:27 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] .8-MM BGA Geometry
Dear Forum,
My Client is utilizing a 0.8-MM SDRAM Package.
The smallest BGA Pitch I have dealt with so far is 1.0-MM.
The Fabrication/Assembly Vendors are yet to be determined.
The PCB "target" construction is 0.062-Inch 14-Layer, three sets of dual
embedded stripline. No Blind/Buried Vias (all Thru Via).
Questions:
1. Any recommendations for local (NH-MA) Fabrication/Assembly Vendors
capable of working with this BGA Geometry?
2. BGA SMT Pad Diameter?
3. BGA SMT Soldermask Diameter?
4. Thru Via Drill?
5. Thru Via Pad Diameter?
6. Alternatively, is Via-In-Pad an option?
7. Any chance of ATE Testing 0.8-MM Pitch?
Thank You,
Richard E Marion
169 Little Mill Road Unit 2
Sandown NH 03873-2554
HOME: 603-887-2266
CELL: 603-247-1610
FAX : 603-887-2936
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