Morning An, we have successfully screen printed our vias closed. this was to prevent conformal coating to leak to the other side. 1:1 aperture We are having a couple boards via filled with silver paste by board house. There are two conductive type, Methode makes one and Dupont makes another, I do not know the numbers. Maybe someone else does. Dave Chapman Manufacturing Engineer Circuit Service Inc. -----Original Message----- From: An [mailto:[log in to unmask]] Sent: Monday, April 14, 2003 5:59 AM To: [log in to unmask] Subject: [TN] via filling Hello, I'm searching for information on filling of burried vias, blind vias, and micro-vias. The more information I can find the better. Which technology is available? Conductive or non-conductive? Plating or screen-printing? Which suppliers? Which process do you use? How are your experiences with it? For which purposes do you fill? I thank you in advance. Sincerely An gielen --------------------------------------------------- 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 -----------------------------------------------------