Methods, systems, and computer readable media for detecting electrical disconnection between integrated circuit chip electrical connections and corresponding electrical contacts on a printed circuit board or chip socket during testing of the chip under environmental conditions
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United States of America Patent
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Sep 13, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jun 9, 2014
filing date -
Jun 9, 2014
priority date (Note) -
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Abstract
A method for detecting electrical disconnections of a chip during testing under environmental conditions includes providing n monitor connections on a chip from which a voltage or current can be sensed during testing of the chip under environmental conditions, where n is an integer of at least one. M sensing connections are provided on the chip, where m>n. An electrical circuit for electrically connects the n monitor connections with the m sensing connections. The electrical circuit has a characteristic that changes when one or more of the m sensing connections is disconnected from its corresponding contact on the printed circuit board or chip socket. The electrical circuit is monitored via the n monitor connections during the testing. It is determined based on changes in the characteristic, whether one or more of the m sensing connections is disconnected from the printed circuit board or chip socket.
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