Hall device, magnetic sensor having same, and signal correcting method thereof

摘要

By restricting the concentration and the depth of an n-type impurity region which is a magnetosensitive portion of a Hall device to appropriate ranges, it is possible to improve linearity of temperature characteristics in detecting a magnetic field intensity with high accuracy. In order to obtain linearity of the temperature characteristics of the constant-current sensitivity, there is provided a Hall device including a p-type impurity region 1 and an n-type impurity region 2 that is disposed on the p-type impurity region 1 and that serves as a magnetosensitive portion, wherein an n-type impurity concentration N and a distribution depth D of the n-type impurity region 2 satisfy relational expressions of N<1.0x10 16 and N>3.802x10 16 xD -1.761 .