Hi Marcelo, Perhaps some more information is needed. Do you want to evaluate bare boards, or populated boards ? Do you want to do air to air or liquid to liquid thermal cycling ? We have done both and do bare boards routinely. In the past we have monitored populated boards with K-factor Chips mounted in the Chip carriers. Indeed it is possible to monitor insitu and only report the occurrences of failures, with the proper datalogger. I could be more help off line if you desire to contact me by E-mail directly. Regards, Les Connally > From: "Chan, Marcelo" <[log in to unmask]>, on 8/20/98 3:08 PM: > I would like to know if it is possible these days to conduct reliability > tests > on daisy chain components and monitor < 2 Ohms resistance change rather than > just continuity... I understand that I could utilize the four probe > resistance > approach, but I would like to monitor about 100 devices simultaneously...I > am > looking manageable approaches for upgrading our current continuity > approach.... > Also, how do people overcome the data logging of intermittent failures > without > causing a tremendous amount of data.... on one hand, we want to capture an > open > during temperature cycling, but not log the same device over and over again > in a > span of 1 second.... > > Thanks, > > Marcelo > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with following > text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section > for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ > > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################