| Patent application number | Description | Published |
|---|
| 20090045810 | MAGNETIC DETECTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - A magnetic detecting device includes a first and a second magnetoresistive element, and a first and a second fixed resistor connected in series to the first and the second magnetoresistive element, respectively. The first and the second magnetoresistive element each include a pinned magnetic layer and a free magnetic layer with a nonmagnetic conductive layer in between. The first and the second magnetoresistive element have the same layer structure except that the nonmagnetic conductive layers have different thicknesses. The thicknesses of the nonmagnetic conductive layers are set so that a positive interlayer coupling magnetic field acts between the free magnetic layer and the pinned magnetic layer of the first magnetoresistive element and a negative interlayer coupling magnetic field acts between the free magnetic layer and the pinned magnetic layer of the second magnetoresistive element. The first and the second fixed resistor have the same layer structure. | 02-19-2009 |
| 20090147409 | MAGNETORESISTIVE ELEMENT, MAGNETIC SENSOR, AND METHOD OF PRODUCING THE MAGNETORESISTIVE ELEMENT - The thickness of an antiferromagnetic layer (IrMn) and the thickness of a nonmagnetic interlayer (Cu) are adjusted so as to be within the area surrounded by boundaries a to f on the graph of | 06-11-2009 |
| 20090315552 | MAGNETIC DETECTION DEVICE HAVING BRIDGE CIRCUIT PROVIDED WITH RESISTANCE ADJUSTMENT PORTION AND METHOD OF MANUFACTURING THE SAME - In a magnetic detection device using a magnetic resistance element, the resistance of a layer having a multi-layer structure can be easily adjusted without causing damages to the layer. A magneto-resistance layer is connected in series to a reference resistance layer, and a magneto-resistance layer is connected in series to a reference resistance layer on a substrate. A voltage is applied between a power supply layer and a grounding layer. A first output conductive layer and the reference resistance layer extend in parallel to each other so that they are partially electrically connected to each other via a connection layer. A second output conductive layer and the reference resistance layer extend in parallel to each other so that they are partially electrically connected to each other via a connection layer. Accordingly, it is possible to adjust the resistance of the reference resistance layers by selecting the respective positions of the connection layers. | 12-24-2009 |
| 20100066359 | MAGNETIC DETECTION DEVICE AND ELECTRICAL PRODUCT - An integrated circuit is provided with two output terminals and a mode switch circuit which includes a pair of switch terminals. The mode switch circuit is allowed to switch the output mode between the 1-output mode for outputting the (+) magnetic field detection signal and the (−) magnetic field detection signal from the output terminal, and the 2-output mode for outputting the (+) magnetic field signal from the output terminal as one of the output terminals, and the (−) magnetic field detection signal from the output terminal as the other output terminal in accordance with the shortcircuit state or the non-shortcircuit state between the switch terminals. The switch terminals are exposed on the surface of the device, and the shortcircuit state and the non-shortcircuit state may be externally adjusted. | 03-18-2010 |
| 20100079135 | MAGNETIC DETECTING DEVICE AND METHOD FOR MAKING THE SAME, AND ANGLE DETECTING APPARATUS, POSITION DETECTING APPARATUS, AND MAGNETIC SWITCH EACH INCLUDING THE MAGNETIC DETECTING DEVICE - In a magnetic detecting device, conductive patterns are formed on a substrate in a surrounding region outside chips, except for a region between the chips. Inner connection pads formed on each of the chips are wire-bonded to their corresponding conductive patterns, so that the chips are electrically connected to each other. | 04-01-2010 |
| 20100141251 | MAGNETIC DETECTION DEVICE - A magnetic detection device includes a sensor unit including a sensor pattern having a plurality of magnetoresistance effect films whose ends in the length direction thereof are coupled via return portions, and electrode units formed at both ends of the sensor pattern in the longitudinal direction thereof. A non-magnetic conductor is electrically connected across a top surface of one of a pair of magnetoresistance effect films that are coupled via the corresponding one of the return portions and that face each other and a top surface of the other magnetoresistance effect film. Therefore, the resistance value between the electrode units can be adjusted without increasing the dimensions of the sensor unit, and deterioration or variation in magnetic characteristics can be reduced. | 06-10-2010 |
| 20100253330 | MAGNETIC SENSOR AND MAGNETIC SENSOR MODULE - A magnetic sensor including a magnetoresistive effect element has the following structure. Element units each having an element width W | 10-07-2010 |
| 20100283457 | MAGNETIC SENSOR AND METHOD FOR PRODUCING THE SAME - A magnetoresistive element includes, in plan view, an element section and an extension region extending from an end portion of the element section; and an insulation layer is formed on the element section and the extension region. A contact hole having a recessed shape, penetrating through the insulation layer, and extending at least to the extension region is formed; an electrode pad is formed in the contact hole; a surface of the electrode pad is exposed to outside; and the electrode pad is electrically connected to the extension region. The element section and the extension region are integrally formed so as to have an identical layer configuration employing a magnetoresistive effect in which electrical resistance varies in response to external magnetic fields. | 11-11-2010 |
