Patent ID: 9488701
Filing Date: 2016-11-08
CPC Classification: G01R

Claim Text:
1. An integrated magnetoresistive sensing device, comprising: a substrate, having a first surface and a second surface opposite to the first surface; a magnetoresistive sensing element, disposed above the first surface and having at least a magnetoresistive layer not parallel to the first surface; and a built-in self test (BIST) unit, disposed above the first surface and having at least a conductive part corresponding to the magnetoresistive layer, wherein the conductive part is configured to generate a magnetic field along a direction perpendicular to the first surface, wherein a projection of the conductive part on the first surface does not overlap with a projection of the magnetoresistive layer on the first surface, and the magnetoresistive layer has a thickness, a width and a length, the length is greater than the width and the width is greater than the thickness, and a direction of the width is not parallel to the first surface; and the conductive part has a thickness, a width and a length, the length is greater than the width and greater than the thickness, and a direction of the length is parallel to the direction of length of the magnetoresistive layer.