Apparatus and method for measuring a movable electric charge induced in a conductive member
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United States of America Patent
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Mar 7, 2000
Grant Date -
N/A
app pub date -
May 31, 1995
filing date -
May 31, 1994
priority date (Note) -
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Abstract
A measuring apparatus has a capacitor incorporated in a handy measuring tool electrically connected to a voltage meter, and a sharp leading end of the capacitor is brought into contact with a lead of a large scale integrated circuit device for accumulating movable electric charge induced in the presence of a charged insulating package into the capacitor so that the amount of the accumulated movable electric charge is calculated from a potential difference produced between electrodes of the capacitor.
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