Current sensor

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Magnetic saturation

Reexamination Certificate

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Reexamination Certificate

active

07075287

ABSTRACT:
An integrated circuit current sensor includes a lead frame having at least two leads coupled to provide a current conductor portion, and a substrate having a first surface in which is disposed one or more magnetic field sensing elements, with the first surface being proximate to the current conductor portion and a second surface distal from the current conductor portion. In one particular embodiment, the substrate is disposed having the first surface of the substrate above the current conductor portion and the second surface of the substrate above the first surface. In this particular embodiment, the substrate is oriented upside-down in the integrated circuit in a flip-chap arrangement. The integrated circuit includes an overcurrent circuit responsive to a voltage drop generated by a current.

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Steiner, et al.; “Fully Packaged CMOS Current Monitor Using Lead-on-Chip Technology;” Physical Electronics Laboratory, ETH Zurich, CH8093 Zurich, Switzerland; No. 0-7803-4412-X/98; IEEE 1998; pp. 603-608.

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