Hi all: Once upon, I known a training method to the inspectors in IQC and end SMT line, you can choose some of "Golden" samples which contains some defects set by you, you can prepare some papers which cover the boards profile, then you request your inspectors to inspect all the samples one by one and write down the answers on the test papers, they need to mark the defect locations and the defect modes, you can review all the papers and give scores to all inspectors based on your default answers, when you find some of the inspectors are not qualified to do inspection, you can use MSA to analyze and improve their inspection ability. Thanks Winning -----邮件原件----- 发件人: TechNet [mailto:[log in to unmask]] 代表 Stadem, Richard D. 发送时间: 2009年5月8日 5:05 收件人: [log in to unmask] 主题: Re: [TN] Inspector evaluation boards Hi, Ioan It's called GAGE R&R. This can be done with any scrap CCA assembly, or a few assemblies. You can bring it up to "golden" status with a careful and very thorough inspection, then do any touchup and rework for any defects found. After it is cleaned, have the inspectors inspect it to verify there are no undetected defects or anomalies (benchmark). Then introduce defects. Pick some out of the IPC-610D pictorial examples, the ones that are important to you for your products, and duplicate them on your golden board(s). I would induce some "acceptable" and some "reject" conditions. It is assumed the board starts out with all "preferred" workmanship. Be sure to include many defect types, such as missing epoxy, PWB corner damage, slightly bent connector pins, chipped solder mask exposing weave or copper, in addition to the many solder defect types. Slip in a couple of unauthorized/improper repairs, too. You can use IPC boards such as the MTTC. These can be used as proficiency samples for solder training, and when finished you can re-use them for the above purpose. You can order these from IPC. Save these boards with the induced defects. You can use them later when you look at the results of the GR&R and decide to purchase an AOI machine instead. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Ioan Tempea Sent: Thursday, May 07, 2009 3:20 PM To: [log in to unmask] Subject: [TN] Inspector evaluation boards Dear Technos, We think about implementing a means of evaluating the efficiency of the inspectors. One idea would be having them inspect a certain quantity of boards assembled with different known defects, both in terms of placement (polarity, position, etc.) and workmanship. Is there anybody out there manufacturing this type of evaluation boards? Also, what are you doing to evaluate and qualify your inspectors (QC and end of SMT line touch-up people)? Thanks, Ioan Tempea, ing. Ingénieur Principal Fabrication / Sr. Manufacturing Engineer 30 ans déjà! - Already 30 years! 950 rue Bergar, Laval, Québec, H7L 5A1 t : 450-967-7100 ext : 244 Mtl : 514-990-5762 f : 450-967-7444 [log in to unmask] <mailto:[log in to unmask]> www.digico.cc <http://www.digico.cc/> P N'imprimer que si nécessaire - Print only if you must --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------