Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame
Reexamination Certificate
2008-07-11
2009-10-06
Kebede, Brook (Department: 2894)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
C257SE43003, C257SE27005, C174S536000, C324S11700H
Reexamination Certificate
active
07598601
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 position. 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 current sensor can also include an electromagnetic shield disposed between the current conductor portion and the magnetic field sensing elements.
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Doogue Michael C.
Taylor William P.
Allegro Microsystems Inc.
Daly, Crowley & Mofford & Durkee, LLP
Kebede Brook
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