Technical Committee 5-22G??? Which one is this? Franklin -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Roland Jaquet Sent: Tuesday, June 06, 2006 12:14 PM To: [log in to unmask] Subject: Re: [TN] How are PCB & Assembly manufacturers measuring scrap? Dear Jack, Thanks to Denny I learn there is an IPC committee 5-22G in regards to Production scrap (Rejects) and this subject is of acute interest to me as I believe there is some major flows in Bare Board Manufacturing measurement of Defect and Rejects. I do not know how to get information on what has been done and what I could read in order to follow the path of the wise men.. I seek to make measurements of Rejects and Defects at the Electrical Test level (keeping in mind we are on Bare Boards). I would appreciate your help as I would appreciate anyone's input as well. Thank you very much PS I am a member of EIPC Regards to Denny, and thank you. Meilleures salutations Very Best Regards Rol@nd www.PCBspecialist.com Roland Jaquet 14 Champ Budin 1258 Perly, GENEVA Switzerland Tel +41-22-880-0405 Fax +41-22-880-0409 Mobile +41-79-203-3723 There are three constants in life... Change, Choice and Principles. Stephen R. Covey -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Dennis Fritz Sent: Thursday, April 20, 2006 4:18 AM To: [log in to unmask] Subject: Re: [TN] How are PCB & Assembly manufacturers measuring scrap? The assembly side PWB manufacture has worked hard to quanify yield in terms of "defects per million opportunities - DPMO". While this is not actually a measure of scrap, this does even out differences between simple and complex assemblies Recently, the same group has started to try to quanify board fab in some similar terms to DPMO. Board fabrication is not so easy to quantify as it is harder to define an individual "opportunity". At Apex/Expo time, this group was collecting the defect codes from several board fabrication shops to try to get a feel for some metrics the committee could track. Anyone interested should contact IPC Committee 5-22G under Greg Hurst of BAE Systems or IPC Technical Staff LIason Jack Crawford, as a start. Denny Fritz MacDermid, Inc --------------------------------------------------- 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 -----------------------------------------------------