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Field Self-Service for ZIF Connector by Ultrasonic Means Disclosure Number: IPCOM000036017D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue


Related People

Blum, A Perske, M Schmidt, M [+details]


For the field service of data processing systems fitted with zero insertion force (ZIF) connectors, it is suggested that an ultrasonic transducer be provided in the contact region of each circuit board. A short pulse from the maintenance logic applied to the transducer wipes the contact pins on the gold-plated contact tabs. As a result of this wiping, the contact area is cleaned, restoring the predetermined contact resistance. To avoid system failure caused by ZIF contact problems, the maintenance logic analyzes the contact resistances, triggering a self-service pulse, if required. The ultrasonic transducers used operate in the direction of the longitudinal axis of the contact pins.