Please visit www.pcbdr.com and click on the stack-up calculator link
You can use it online or download it for ease of use.
There are programs out there that provide the Er for each material, but
this one allows you to calculate all the layer and change out the material
thickness.
The calculator shown on the page is NOT the one in the link, but the one
that comes with the book.
Chris Robertson
Author "PCB Designer's Reference"
[log in to unmask]
Greetings all,
I could use a little help here. I don't have an impedance solver at hand
and I have a customer looking for a suggested build for a 10 and 12 layer
board with signal traces running at 100ohm (single ended and differential).
They will have signal traces at 4-6mil's (I am using 5mil for my rough
calculations) but I can't see how to do this with regular FR-4 laminate (Er
4.2). Has anyone build/designed boards with this requirement? Can you give
me some clues as to lay-up or laminate spec's that could save me some leg
work?
Stack is as follows; 1/2oz base copper all layers
10 layer, Sig,Plane,Sig,Plane,Sig,Sig,Plane,Sig,Plane,Sig
12 layer, Sig,Plane,Sig,Sig,Plane,Sig,Sig,Plane,Sig,Sig,Plane,Sig
Regards
John Parsons
---------------------------------------------------
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
-----------------------------------------------------
-----------------------------------------------------
|
