Links

PCB Design

IPC Resources -SMT Footprint Calculator and more

PCB Trace Width Calculator (on-line) -by Brad Suppanz

pcbstandards.com -PCB decals, docs & forum

Conversion Factors -CAD format (Scm & PCB) conversion service

PCI SIG -PCI Bus info/specs

UltraCAD Design -PCB articles, calculators, info by Doug Brooks

SMT Inline -Info and articles on SMT

Technical Forums

A select few of the many PCB related forums available. Most have email support and are free (some require registration).

Name	URL
CircuiTree	http://www.i-boards.com/bnp/ct/
EDA Discussion Group	http://www.dacafe.com/DACafe/TECHNICAL/Discussions/
IPC Designer Council Forum	http://jefry.ipc.org/archives/designercouncil
IPC Technet Forum Archive	http://jefry.ipc.org/archives/technet
IPC Forum sign-up page	http://www.ipc.org/html/fsresources.htm
Orcad Forum (Cadence)	http://www.orcadpcb.com
Orcad Forum (yahoo)	http://groups.yahoo.com/group/Orcad/
PADS Listserver	http://www.mentor.com/pads/forum.html
PCAD User Group (yahoo)	http://groups.yahoo.com/group/accel-protel/
PCB Cafe	http://www.pcbcafe.com/
Specctra	http://www.dacafe.com/USERSGROUPS/cctug/
SIGDA	http://sigda.acm.org/
Signal Integrity Discussion	http://www.freelists.org/archives/si-list/
SMTA Web Site Discussion	http://www.smta.org/forum/forum.cfm