Hi Wayne, maybe you could try to run a jumper wire if you look at the open net on a screen to see where the net surfaces. Most opens can be repaired that way. As long as it is not an impedance line. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Thayer, Wayne Sent: September 30, 2008 10:22 AM To: [log in to unmask] Subject: Re: [TN] MICRO VIA REPAIR Hi Lee! I believe we have met some time in the past year or two. We are sometimes forced to repair blind microvias as well (low quantities, high value, short timeframe, etc). We have had good performance using EpoTek H20e and a sharp tungsten probe to heavily scratch the copper surfaces down inside the via while pushing the epoxy where it needs to go. Not fun and usually not economical, but seems to work. Wayne Thayer -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Wolfgang Erat Sent: Saturday, September 27, 2008 2:30 PM To: [log in to unmask] Subject: Re: [TN] MICRO VIA REPAIR Hmmmmm... I would really like to know. 1.0 the diameter of your microvias you are repairing 2.0 why you would want to repair instead of RTV like in Return to vendor -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Lee Whiteman Sent: Monday, September 22, 2008 7:46 AM To: [log in to unmask] Subject: [TN] MICRO VIA REPAIR Does the IPC (or anyone else) have a formal standard / procedure for repairing micro vias? We're doing it here and I would like to compare our process to an industry standard if one exists. Thanks Lee Whiteman, PMP Senior Member Engineering Staff L-3 Communications East Telephone: (856) 338-3508 FAX: (856) 338-2906 E-Mail: [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------------------------- This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. 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