Abstract: Magnetic sensors using spin Hall effect and methods for fabricating same are provided. One such magnetic sensor includes a spin Hall layer including an electrically conductive, non-magnetic material, a magnetic free layer adjacent to the spin Hall layer, a pair of push terminals configured to enable an electrical current to pass through the magnetic free layer and the spin Hall layer in a direction that is perpendicular to a plane of the free and spin Hall layers, and a pair of sensing terminals configured to sense a voltage when the electrical current passes through the magnetic free layer and the spin Hall layer, where each of the push and sensing terminals is electrically isolated from the other terminals.

Abstract: Magnetic sensors using spin Hall effect and methods for fabricating same are provided. One such magnetic sensor includes a spin Hall layer including an electrically conductive, non-magnetic material, a magnetic free layer adjacent to the spin Hall layer, a pair of push terminals configured to enable an electrical current to pass through the magnetic free layer and the spin Hall layer in a direction that is perpendicular to a plane of the free and spin Hall layers, and a pair of sensing terminals configured to sense a voltage when the electrical current passes through the magnetic free layer and the spin Hall layer, where each of the push and sensing terminals is electrically isolated from the other terminals.

Abstract: Embodiments described herein generally relate to resistive shunt design in a read sensor for providing accurate measurements from an electronic lapping guide (ELG). More specifically, embodiments described herein relate to a transducer resistor shunt structure for low cost probing. A bleed resistor network for a read sensor may comprise one or more first resistors arranged in parallel with one another and a second resistor arranged in series with the one or more first resistors. The resistor arrangement may require a small physical area and reduce or prevent ELG measurement errors.

Abstract: Embodiments described herein generally relate to resistive shunt design in a read sensor for providing accurate measurements from an electronic lapping guide (ELG). More specifically, embodiments described herein relate to a transducer resistor shunt structure for low cost probing. A bleed resistor network for a read sensor may comprise one or more first resistors arranged in parallel with one another and a second resistor arranged in series with the one or more first resistors. The resistor arrangement may require a small physical area and reduce or prevent ELG measurement errors.

Abstract: Embodiments described herein generally relate to resistive shunt design in a read sensor for providing accurate measurements from an electronic lapping guide (ELG). More specifically, embodiments described herein relate to a transducer resistor shunt structure for low cost probing. A bleed resistor network for a read sensor may comprise one or more first resistors arranged in parallel with one another and a second resistor arranged in series with the one or more first resistors. The resistor arrangement may require a small physical area and reduce or prevent ELG measurement errors.

Abstract: An air-bearing slider used in a magnetic recording disk drive has a surface that supports a magnetoresistive (MR) read head or sensor and an electrical lapping guide (ELG) adjacent to the MR sensor. The ELG is formed of a different material than the MR sensor so as to have both a high electrical resistivity and a substantially higher etch rate. When the ELG and MR sensor are etched simultaneously to form their respective back edges, the ELG will have a sharp well-defined non-tapered wall at the back edge. The ELG has a film thickness close to but generally thinner than that of the MR sensor, and a sheet resistance to generally match the resistance measurement capability of the lapping tool. The preferred material for the ELG is an alloy comprising silver (Ag) and one or more of Sn, Ge and zinc Zn.

Abstract: An electrical lapping guide (ELG) for the fabrication of an air-bearing slider used in a magnetic recording disk drive is formed of a different material than the magnetoresistive (MR) read head or sensor so as to have both a high electrical resistivity and a substantially higher etch rate. When the ELG and MR sensor are etched simultaneously to form their respective back edges, the ELG will have a sharp well-defined non-tapered wall at the back edge. The ELG has a film thickness close to but generally thinner than that of the MR sensor, and a sheet resistance to generally match the resistance measurement capability of the lapping tool. The preferred material for the ELG is an alloy comprising silver (Ag) and one or more of Sn, Ge and zinc Zn.

Abstract: In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

Abstract: In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

Abstract: A method for fabricating a magnetic head with a trapezoidal shaped pole piece tip is described. The body of the main pole piece is deposited; then one or more layers for the pole piece tip are deposited. A bed material is deposited over the pole piece tip material. A void is formed in the bed material over the area for the pole piece tip. The void is filled with an ion-milling resistant material such as alumina preferably using atomic layer deposition or atomic layer chemical vapor deposition. The excess ion-milling resistant material and the bed material are removed. The result is an ion-milling mask formed over the area for the pole piece tip. Ion milling is then used to remove the unmasked material in the pole piece tip layer and to form a beveled pole piece tip and preferably a beveled face on the main pole piece.

Abstract: In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

Abstract: A method of fabrication is disclosed for a slider having sites for fabrication of a continuous coil having a set of front coils and a set of back coils and a center tab, where the slider includes underpass leads.

Abstract: A method of forming interleaved coils of a write head is disclosed using a combination of non-damascene and damascene processes.

Abstract: In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

Abstract: A slider is disclosed having a continuous coil including front coils, back coils, and a center tab, a write head including upper and lower poles which sandwich at least a portion of the front coils of the continuous coil, and at least one underpass lead, which passes under a portion of the back coils of the continuous coil to make electrical connection with the center tab of the continuous coil. Also disclosed are first and second variations of methods for fabricating the slider with underpass leads.

Abstract: A method for fabricating a magnetic head with a trapezoidal shaped pole piece tip is described. The body of the main pole piece is deposited, then one or more layers for the pole piece tip are deposited. A bed material is deposited over the pole piece tip material. A void is formed in the bed material over the area for the pole piece tip. The void is filled with an ion-milling resistant material such as alumina preferably using atomic layer deposition or atomic layer chemical vapor deposition. The excess ion-milling resistant material and the bed material are removed. The result is an ion-milling mask formed over the area for the pole piece tip. Ion milling is then used to remove the unmasked material in the pole piece tip layer and to form a beveled pole piece tip and preferably a beveled face on the main pole piece.