Current sensor

Details Current sensor Current sensor

2006-02-07

2006-02-07

Ngo, Hung V. (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

C324S11700H, C324S11700H, C324S251000

Reexamination Certificate

active

06995315

ABSTRACT:
An integrated circuit current sensor includes a lead frame having at least two leads coupled to provide a current conductor portion, and substrate having a first surface in which is disposed one or more magnetic field transducers, with the first surface being proximate 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 relative to a conventional orientation. A current conductor portion can be deposited on a surface of the substrate proximate to the one or more magnetic field sensors. With this arrangement, a current sensor is provided for which the one or more magnetic field transducers are very close to the current conductor portion, resulting in a current sensor having improved sensitivity.

REFERENCES:
patent: 4893073 (1990-01-01), McDonald et al.
patent: 5041780 (1991-08-01), Rippel
patent: 5124642 (1992-06-01), Marx
patent: 5247202 (1993-09-01), Popovic et al.
patent: 5615075 (1997-03-01), Kim
patent: 6005383 (1999-12-01), Savary et al.
patent: 6252389 (2001-06-01), Baba et al.
patent: 6356068 (2002-03-01), Steiner et al.
patent: 6462531 (2002-10-01), Ohtsuka
patent: 6683448 (2004-01-01), Ohtsuka
patent: 6727683 (2004-04-01), Goto et al.
patent: 2004/0056647 (2004-03-01), Stauth et al.
patent: 2004/0080308 (2004-04-01), Goto
patent: 2005/0045359 (2005-03-01), Doogue et al.
patent: 0 867 725 (1998-09-01), None
patent: 1 107 327 (2001-06-01), None
patent: 1 107 328 (2001-06-01), None
patent: 1 111 693 (2001-06-01), None
patent: 61-71649 (1986-04-01), None
patent: 4-364472 (1992-12-01), None
patent: WO 99/14605 (1999-03-01), None
PCT Search Report and Written Opinion of the ISA for PCT/US2004/009908 dated Aug. 16, 2004.
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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