Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Patent
1998-05-28
1999-08-10
Do, Diep N.
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
324514, 324501, 324750, 324752, G01R 3102
Patent
active
059364084
ABSTRACT:
A gas panel plasma plate is used to detect shorts and opens on a thin film surface of a multi-layer ceramic module (MCM) through biasing a circuit of the module through bottom surface module (BSM) pins to produce a glow within the plasma plate. A grounded plane is placed above the module to be tested, and the gap between the module and the plane is filled with a gas. A plasma discharge is created by biasing the circuit. The current produced at the BSM pin by the plasma discharge is monitored. The monitored current of the circuit under test is compared to a current range of a known good module. In the alternative, the light flux produced by the plasma discharge is monitored, and the monitored light flux is compared to a light flux range of a known good module.
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Do Diep N.
International Business Machines - Corporation
Schnurmann H. Daniel
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