From: Paul M Fly Ioan, We routinely use a flood connection on our vias, it has not caused us any problems. The thermal relief is required only if the hole is intended for the lead of a through-hole component. If you are talking about vias such as those used to connect a SMT decoupling cap to power and/or ground then the flood connection to the plane should not cause any problems for you. ************************************ Paul Fly Eastman Kodak Company Engineering Technology Center - PEDT 2nd Fl. Bld. 205 K.P. 2400 Mt. Read Blvd. Rochester, New York 14650-3007 Phone: (716) 726-5670 Fax: (716) 726-0275 E-mail: [log in to unmask] ************************************ "Tempea, Ioan" <[log in to unmask]> on 04/30/2001 09:34:01 AM Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to "Tempea, Ioan" <[log in to unmask]> To: [log in to unmask] cc: (bcc: Paul M Fly/243609/EKC) Subject: [TN] Connection of vias to planes Hi technos, once again I need to come to the wisdom fountain. Please give me some input on the issue raised by our design group that reads: "I would like to know if we connect all the vias connected to plane (power or ground) without thermal connection but with flood connection, if it can cause any assembly problems (Thermal, stress, etc...). To help to reduce the inductance of the vias we would like to connect these vias without thermal connection". Thank you, Ioan --------------------------------------------------------------------------- ------ Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------