Hi Kristopher All our customers tell us they have zero defects and no failures. We call this "Telling Porky Pies". I did a net search on your question and came up with one that might be useful: http://www.allaboutcircuits.com/vol_5/chpt_8/5.html -- Regards Graham Naisbitt [log in to unmask] Concoat Limited - Engineering Reliability in Electronics A British Manufacturer www.conformalcoating.com www.concoat.co.uk www.concoatsystems.com Golf Quote of the week: If you think its hard to meet new people, try picking up the wrong golf ball. Cell: 079 6858 2121 Office: +44 (0)1252 813706 > Hello, > Could some of you share what are the most common PCB defects that escape to > your customers? > > > Thanks > > Kristopher J. Keating > Circuit-Wise, Inc. > 400 Sackett Point Rd. > North Haven, CT 06473 > tel. (203) 281-6511 x 410 > fax (203) 287-8409 > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Ingemar Hernefjord > (KC/EMW) > Sent: Tuesday, August 17, 2004 3:16 AM > To: [log in to unmask] > Subject: Re: [TN] thin film > > Seal Science say they have it all: > http://www.sealscience.com/html/products/VacuumCupsPdfs/15about.pdf > ultrahighvacuum guys use pure gold gaskets: > http://www.sisweb.com/catalog/F39.pdf > ourselves, we use as simple as butyl rubber: > http://www.allstategasket.com/materials.asp (not Ultravacuum, of course) > Butyl rubber group includes ordinary rubber used in your mountainbike tire, > can keep vacuum or pressure for very long time. > /Ingemar > > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]]On Behalf Of Crepeau, Phil > Sent: den 17 augusti 2004 02:25 > To: [log in to unmask] > Subject: Re: [TN] thin film > > > hi, > > i believe you should be able to use a gasket material such as viton. > > phil > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]]On Behalf Of Douglas O. Pauls > Sent: Monday, August 16, 2004 2:02 PM > To: [log in to unmask] > Subject: [TN] thin film > > > Good day all, > I am in need of a recommendation for a thin film sealant material. I need > it to be 15-20 mils thick, cuttable, and preferrably non silicone. We have > considered the Sil-Pad technology, but as this will be used in a vacuum seal > operation, I am concerned about silicone outgassing or cross contamination. > Are there any thin gasket materials from the engineered rubbers that anyone > would recommend? > > Doug Pauls > > --------------------------------------------------- > 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 847-509-9700 > ext.5315 > ----------------------------------------------------- > > --------------------------------------------------- > 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 847-509-9700 > ext.5315 > ----------------------------------------------------- > > --------------------------------------------------- > 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 847-509-9700 > ext.5315 > ----------------------------------------------------- > > -- > Incoming mail is certified Virus Free. > Checked by AVG Anti-Virus (http://www.grisoft.com). > Version: 7.0.262 / Virus Database: 264.6.1 - Release Date: 8/16/2004 > > > -- > Outgoing mail is certified Virus Free. > Checked by AVG Anti-Virus (http://www.grisoft.com). > Version: 7.0.262 / Virus Database: 264.6.3 - Release Date: 8/16/2004 > > --------------------------------------------------- > 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 > 847-509-9700 ext.5315 > ----------------------------------------------------- > --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------