[SI-LIST] Re: 10 mm PCB
- From: "Massoud Shakeri" <massoud@xxxxxxxxxxx>
- To: <gianguida@xxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 23 Nov 2011 11:29:15 -0800
Hi,
I think if you post this case in TechNet@xxxxxxx, people at that forum can
respond better. PCB fabricators mostly attend that forum.
Regards
Massoud
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of gianguida@xxxxxxxx
Sent: Wednesday, November 23, 2011 5:34 AM
To: Wolfgang.Maichen@xxxxxxxxxxxx; Gert.Havermann@xxxxxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] R: Re: AW: Re: 10 mm PCB
Hi folks,
first of all let me thank all of you whio replied to my post .
All suggestions have been really useful.
Actually this application is a printed antenna and for several reasons it is
necessary to have such large thickness there are just 4 dielectric layers
biut it is needed to have such large thickness.
Again thanks to everyone
Giancarlo
----Messaggio originale----
Da: Wolfgang.Maichen@xxxxxxxxxxxx
Data: 23-nov-2011 9.22
A: <Gert.Havermann@xxxxxxxxxxx>, <gianguida@xxxxxxxx>
Cc: <si-list@xxxxxxxxxxxxx>
Ogg: [SI-LIST] Re: AW: Re: 10 mm PCB
Hello Giancarlo,
I guess the first question one should ask is: What is the reason for the
thickness requirement? Do you need such a large number of layers (or very
thick dielectrics between copper layers), or is it a purely mechanical
reason, e.g. to get sufficient stiffness? If the latter, something like an
aluminum stiffener conbined with a thinner board would probably be a better
solution. Even if it is the number of layers, there could be ways to reduce
total thickness - I have seen tester load boards that had to route several
power planes as well as a couple of thousand signal lines across the board
yet none of them ever exceeded about 5mm / 0.2 inches.
The more we know about the application the easier it is for other people to
come up with good and/or innovative suggestions you may not have thought of.
Regards,
Wolfgang
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Havermann, Gert
Sent: Tuesday, November 22, 2011 4:56 PM
To: gianguida@xxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] AW: Re: 10 mm PCB
David,
Photochemie's limit is 6.5mm.
For 10mm I only know one supplier in China, and I can't recommend them for
SI-PCBs. But I also can't recommend 10mm thick PCBs for SI-applications.
Giancarlo,
Have you thought about Multi pressing with two separate plating processes?
Similar to HDI technologie, that's two ready 5mm PCBs that are bonded
together with a prepreg, then the thru drill and plating of the thru vias
only, and etching of the outer layer.
Might be the best option for Processing and SI.
BR
Gert
Besuchen Sie uns auf der SPS/IPC/Drives vom 22. bis zum 24. November 2011 in
Nürnberg, Halle 10, Stand 140.
http://www.mesago.de/de/SPS/home.htm
-----Ursprüngliche Nachricht-----
Von: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] Im
Auftrag von Dudi Tash
Gesendet: Dienstag, 22. November 2011 16:44
An: gianguida@xxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Betreff: [SI-LIST] Re: 10 mm PCB
Hi Giancarlo,
Photochemie in Germany are great.
David
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of suresh kondepati
Sent: Tuesday, November 22, 2011 5:26 PM
To: gianguida@xxxxxxxx
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: 10 mm PCB
Hi Giancarlo,
How about Indian producers. Let me know your PCB details if you are OK with
it
thanks
suresh
On Tue, Nov 22, 2011 at 7:06 PM, gianguida@xxxxxxxx
<gianguida@xxxxxxxx>wrote:
> Hi folks,
> I am looking for companies that can manufacture pcb with an overall
> thickness of 10 mm.
>
> Due to my location (Rome) I would like to get in contact with Italian
> industries, European producer could also be ok...
>
>
> Thanks a lot for your help
>
> Giancarlo
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