Patent ID: 11867728
Assignee: ASAHI KASEI MICRODEVICES CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 12:
13. A current sensor, comprising:
at least one magnetoelectric conversion element;
a conductor that at least partially surrounds the at least one magnetoelectric conversion element in a plan view and through which a measurement current to be measured by the at least one magnetoelectric conversion element flows;
a signal processing IC that processes a signal that is output from the at least one magnetoelectric conversion element;
an encapsulating portion that encapsulates the at least one magnetoelectric conversion element, the conductor, and the signal processing IC;
a pair of first lead terminals that is partially exposed outside of the encapsulating portion, is electrically connected to the conductor, inputs the measurement current to the conductor, and outputs the measurement current from the conductor;
a plurality of second lead terminals that is partially exposed outside of the encapsulating portion and includes at least one of the plurality of second lead terminals which is electrically connected to the signal processing IC;
a metal member that is partially exposed outside of the encapsulating portion and is spaced apart from the conductor; and
a supporting portion that supports the at least one magnetoelectric conversion element, the signal processing IC, and the metal member on a first surface, is spaced apart from the conductor, and is separate from the metal member, wherein
the metal member includes a first metal member that is one second lead terminal among the plurality of second lead terminals, and a second metal member that is separate from the plurality of second lead terminals and does not take a signal output from the signal processing IC outside,
the pair of first lead terminals is exposed on a first side surface of the encapsulating portion,
the plurality of second lead terminals is exposed on a second side surface that is opposite to the first side surface of the encapsulating portion, and
the second metal member is exposed on at least one of a third side surface different from the first side surface and the second side surface of the encapsulating portion, or a fourth side surface that is opposite to the third side surface.