A good question and I am not suggesting we divulge trade secrets but for example, we are currently producing solder mask dams down to 1 mil with .5 clearance. This not only involves controlling the solder mask exposure and developing precisely but also drill/image registration as these are for DUT pads of 3 mils. This is where technology is taking us today. Now continuing this example, I need to know how to drill a 6 mil via-in-pad (as features prevent laser drill as an option) and our supplier say's the best they can get us to is 8 mils. Would you share some knowledge for other knowledge? How many assembler and end user participants in TechNet can answer the 6 mil drill question? And for those of you taking notes, these are hypotheticals (except we can indeed provide 1 mil solder mask dams). I don't ask very many fabrication questions on TechNet anymore as I rarely receive a response. Is this because they don't know? Are the questions beyond the capabilities of the majority of TechNet? Or the right people are not seeing the question? I believe the latter. Just more things to ponder... Franklin -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Jim Henderson Sent: Wednesday, October 05, 2005 12:29 PM To: [log in to unmask] Subject: Re: [TN] New Topic With the auction of a United States PCB fab shop happening on a weekly basis, I wonder how much information a shop is willing to share can be attributed to the lack of questions or answers for that matter we are seeing here. (Trade secrets stuff) Jim Henderson Colonial Circuits, Inc. -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Whittaker, Dewey (AZ75) Sent: Wednesday, October 05, 2005 12:05 PM To: [log in to unmask] Subject: Re: [TN] New Topic There have been some real whoppers told already on this forum. I don't know if we want to encourage the participation of additional fabricators. Dewey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Franklin Asbell Sent: Wednesday, October 05, 2005 9:00 AM To: [log in to unmask] Subject: [TN] New Topic How can we increase the participation of pcb fabricators to the TechNet forum? Franklin --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a 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/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------