Ed and Robert, We code our fiducials with solder paste so that our DFM software does not flag them as errors. All surface mount pads are checked to make sure that they have a solder mask opening, and a solder paste pad. However, I took a look at some assembled boards and noticed that the fiducials do not have any solder paste on them. This may be a case where two different requirements conflict, and the people making the solder paste stencils quietly change them. Regards, Mike Finczak CopperCAD Design www.CopperCAD.com 905-488-8958 -----Original Message----- From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Robert Szumowicz Sent: Monday, May 21, 2007 2:58 AM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: paste pad on fiducial Below there is a link to SMEA Fiducial Mark Standard, which does not advice the solder paste on fiducials although different assembly houses may have different requirements (we use a cross shape covered by ENIG). In the past we had fiducials with the paste on them and we were asked to change it. www.smema.org/smema3.1.pdf cheers, Robert Ed Caldwell wrote: > > I can't remember why paste pads are on fiducials... can anyone help > me. > > Thanks, > Ed ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe To view the archives of this list go to //www.freelists.org/archives/icu-pcb-forum/ Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx ----------------------------------------------------------- ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe To view the archives of this list go to //www.freelists.org/archives/icu-pcb-forum/ Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx -----------------------------------------------------------