Electronic component testing oven

Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element

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Details

324 731, 3241581, G01R 3102

Patent

active

054365694

ABSTRACT:
The present invention, in one embodiment, provides a testing apparatus for electronic components to monitor their behavior at elevated temperatures. The invention comprises a transport belt with at least one carrier attached to the transport belt, the carrier being capable of retaining an electronic component. The carriers are adapted to contact bus bars positioned adjacent the transport belt to electrically connect a component retained by the carrier to an electrical power supply. The apparatus includes means for ramping up the electrical power applied to the component from an initial low voltage to a second, testing voltage. The apparatus includes a housing defining an oven cavity through which the transport belt may pass and means providing for maintaining the ambient temperature within a portion of the cavity at an elevated temperature and other embodiment, the carrier of the present invention comprises a slot for releasably retaining an electronic component and a retaining bar movable between the first component retaining position and a second, component releasing position, the retaining bar being capable of preventing electronic components from falling out of the slots when the carrier is inverted. In other embodiment, the present invention comprises a method for testing electronic components generally comprising the steps of operatively connecting an electronic component to an electrical power source, gradually increasing power from an initial low power level to a higher testing power level, placing the component in an elevated temperature environment, monitoring the behavior of the component at the elevated temperature while supplying electrical power to the component, and disconnecting the electronic component from the electrical power source.

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"Thermal Stress Screening-Access System," Ransco.

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