I deal with filter caps on the bottom and they have not been a problem for rework. Regards, Bruce Misner > ---------- > From: Kuczynski, Michael @ > SPACENAV[SMTP:[log in to unmask]] > Reply To: TechNet E-Mail Forum.;Kuczynski, Michael @ SPACENAV > Sent: Friday, October 27, 2000 9:38 AM > To: [log in to unmask] > Subject: [TN] BGA/caps placement > > I'd like some opinions on capacitor placement for BGAs. > > Where are you placing the filter caps; top or bottom (we're using 0508 and > 0603) > If on the top, how far away are you placing them. (we're using a .150 > keepout for rework) and are they helping > What problems do the rework guys have with the caps on the bottom > > Any insights/thoughts on this subject would be appreciated > There seems little, middle ground on this issue for engineering and mfg. > > Michael Kuczynski Librarian/Sr. Designer > L3 Communications 1-201-393-2122 (Ph) > Space & Navigation 1-201-393-6681 (Fax) > 699 Rt. 46 E Mail Stop PL1/J8 > Teterboro,NJ 07680 > [log in to unmask] > > -------------------------------------------------------------------------- > ------- > 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 > 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 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 ---------------------------------------------------------------------------------