To reduce the phase lag of output amplitude of a semiconductor magnetoresistive element used in detecting a rotating angle of a gear or the like, and to simplify a magnetic sensor module assembly by a significant amount.

An azimuth-aligning groove 27 is formed along the outer periphery of the semiconductor magnetoresistive element, having two or more MR-sensor chips mounted, thereby improving the assembling accuracy for the outer case. Furthermore, a magnet insertion hole for inserting a magnet to be mounted on a rear surface is integrally formed, when sealing resin 25 is resin-formed. Furthermore, bending a leg 23 of an elongated lead frame eliminates a complex process of connecting a terminal of the semiconductor magnetoresistive element with a terminal pin, after it has been mounted once on a printed board.

COPYRIGHT: (C)2007,JPO&INPIT