MAGNETIC SENSOR, MAGNETIC DETECTOR, AND MAGNETIC HEAD

摘要

PROBLEM TO BE SOLVED: To provide a magnetic sensor detecting magnetic flux from a fine region and suppressing an increase in element resistance. SOLUTION: The magnetic sensor has: a first ferromagnetic body 12A; a second ferromagnetic body 12B; a channel 7 extending from the first ferromagnetic body 12A to the second ferromagnetic body 12B; a magnetic shield S2 for covering the channel 7; and an insulating film 7b disposed between the channel 7 and the magnetic shield S2. The magnetic shield S2 has a through-hole H extending toward the channel 7. COPYRIGHT: (C)2011,JPO&INPIT