Has any one seen failures of chip resistors after 1-2 years where the junction between the silver termination and the restive
element on the top of the ceramic has corroded through. This results in a high resistance failure after this period of time.

I understand that some people in the automotive industry have seen this even on conformally coated boards, the example I have been
examining is not in the same type of environment.

Look forward to hearing from a few people, many thanks.


Bob Willis
Process Engineering Consultant
Electronic Presentation Services
2 Fourth Avenue Chelmsford Essex CM1 4HA
England
Tel: (44) 01245 351502
Fax: (44) 01245 496123
Email: [log in to unmask]
Web Page: www.bobwillis.co.uk

Europe's leading supplier of training products and training workshops
on electronic assembly and your guarantee of quality training.

################################################################
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
################################################################