Recently, the number of mobile phones with GPS functions has surged, and navigation services have become increasingly popular. Most mobile phones with GPS functions show the user’s current location on a map, but the services are difficult to use because the maps provided do not rotate in response to the user’s movements nor do they indicate the direction in which the users is moving. End users have thus been expressing a growing desire for a geomagnetic sensor with an electronic compass function, or “heading up function,” that keeps the map oriented in the direction of the user’s movement. Moreover, the increasing compactness and thinness of mobile phones seen in recent years is leading to strong demand for ever more compact components of all types.