For crimp connections a pull test may not be the best mesurement. We measured crimp height and crimp tool pressure. These proved that the correct wire was installed, no insulation was in the crimp and resulted in connections that always passed pull tests. AMP has specifications for both crimp height and crimp pressure. I don't know other brands but the logic behind these measurments is, IMHO, sound. As far as ISO 9000 and process validation I don't see where they require cross-sections (not that they are a waste of time) Couldn't you validate the process output by comparision to industry acceptabitliy standards . . . IPC-A-610C for example? Guy Ramsey Senior Lab Technician / Instructor E-Mail: [log in to unmask] <mailto:[log in to unmask]> Ph: (610) 362-1200 x107 Fax: (610) 362-1290 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Phil Nutting Sent: Friday, June 22, 2001 1:02 PM To: [log in to unmask] Subject: [TN] Process Validation Hi all, As part of our ISO-9001 effort we need to validate some of our processes. Specifically wave solder, crimping, pwb cleaning and encapsulating. Did I miss any? To validate wave solder do I need to micro-section a sample board and look at it with a microscope or SEM? If I have to micro-section a "sample" board, how do I do that without destroying the pad I'm cutting through? Yet another piece of equipment? For crimps it would be a pull test. Any equipment suggestions? For PWB cleaning it would be an ionic test. What equipment would be used? For encapsulation it would have to be a destructive test to saw it apart and inspect the cross section and maybe a hardness test to confirm that the ratios provided the proper cure hardness. I'm open to suggestions. Keep in mind that management will laugh if I bring in requisitions for hundreds of thousands of dollars. We like the "keep it simple" approach. Thanks in advance. Phil Nutting Manufacturing Engineer Kaiser Systems, Inc. ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------