Abstract: A method and system for providing a touchdown sensor for use in disk drive is described. The touchdown sensor includes a seed layer, a sensor layer on the seed layer, and a capping layer. The sensor layer includes NiFe. In some embodiments, at least one of the seed layer and the capping layer promote stability and performance of the sensor layer.

Abstract: A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without contributing to read gap thickness. The sensor is configured with a pinned layer having a free layer structure located within an active area of the sensor and a pinned layer that extends beyond the free layer and active area of the sensor. The antiferromagnetic layer can be located outside of the active and exchange coupled with the extended portion of the pinned layer.

Abstract: Disclosed in the present invention are a compound of the general structure formula LQC-T as shown below, wherein R represents an aromatic organic acid or phenol or the structural analog thereof, such as protocatechuic acid, protocatechuic aldehyde, vanillic acid, gallic acid, caffeic acid, ferulic acid etc., and the synthesis and use of the compound. The compounds promote new blood vessel growth in the chick embryo chorioallantoic membrane, wherein LQC-T4 can be used to prepare a medicine for treating ischemic brain injury (stroke) and its sequelae.

Abstract: A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without contributing to read gap thickness. The sensor is configured with a pinned layer having a free layer structure located within an active area of the sensor and a pinned layer that extends beyond the free layer and active area of the sensor. The antiferromagnetic layer can be located outside of the active and exchange coupled with the extended portion of the pinned layer.

Abstract: An electronic device of preventing poor heat dissipation and having ESD protection and a protection method for the electronic device are disclosed, in which the electronic device includes a main body, an outer covering, a processing unit and a protective device. The processing unit and the protective device are disposed in the main body. The protective device is coupled to the processing unit. When the outer covering and the main body are closed tightly, the protective device can send a warning signal to the processing unit.

Abstract: A method and system for fabricating magnetic transducer are described. The method and system include providing a main pole having a bottom and a top wider than the bottom. The method and system further include performing a high energy ion mill at an angle from a normal to the top of the main pole and at a first energy. The high energy ion mill removes a portion of the top of the main pole and exposes a top bevel surface for the main pole. The method and system also include performing a low energy ion mill at second energy and a glancing angle from the top bevel surface. The glancing angle is not more than fifteen degrees. The second energy is less than the first energy. The method and system also include depositing a nonmagnetic gap.

Abstract: A method and system provide a touchdown sensor for use in disk drive. The touchdown sensor includes a sensor layer including a plurality of magnetic layers interleaved with at least one nonmagnetic layer. The plurality of magnetic layers are magnetically coupled and single domain. Further, the sensor has a temperature coefficient of resistivity (TCR) of at least 0.15%/° C.

Abstract: A magnetic recording transducer comprises a main pole having a bottom, a top wider than the bottom, and a top bevel. The transducer further comprises a nonmagnetic gap covering the main pole, a portion of the nonmagnetic gap residing on the top of the main pole, a first seed layer, at least a portion of the first seed layer covering the portion of the nonmagnetic gap on top of the main pole, a second seed layer residing on the first seed layer, and a wrap-around shield on the second seed layer.

Abstract: A transducer according to one embodiment comprises a first ferromagnetic layer; a second ferromagnetic layer; and an electrically conductive layer positioned between the ferromagnetic layers; wherein a length of the first ferromagnetic layer in a first direction parallel to a plane of deposition thereof is greater than a length of the electrically conductive layer in the first direction such that a first end of the first ferromagnetic layer extends beyond an end of the electrically conductive layer in the first direction, wherein an electrical current enters or exits the end of the first ferromagnetic layer that extends beyond the end of the electrically conductive layer in the first direction. Additional transducer structures, and systems implementing such transducers, are also disclosed.

Abstract: A method fabricates a magnetic transducer having a nonmagnetic layer and an ABS location corresponding to an ABS. Etch stop and nonmagnetic etchable layers are provided. A side shield layer is provided between the ABS location and the etch stop and etchable layers. A pole trench is formed in the side shield and etchable layers. The pole trench has a pole tip region in the side shield layer and a yoke region in the etchable layer. A nonmagnetic side gap layer, at least part of which is in the pole trench, is provided. A remaining portion of the pole trench has a location and profile for a pole and in which at least part of the pole is formed. A write gap and trailing shield are provided. At least part of the write gap is on the pole. At least part of the trailing shield is on the write gap.

Abstract: Read elements and associated methods of fabrication are disclosed. During fabrication of the read element, and more particularly, the fabrication of the hard bias magnets, a non-magnetic sacrificial layer is deposited on top of the hard bias material. When a CMP process is subsequently performed, the sacrificial layer is polished instead of the hard bias material. The thicknesses of the hard bias magnets are not affected by the CMP process, but are rather defined by the deposition process of the hard bias material. As a result, the variations in the CMP process will not negatively affect the magnetic properties of the hard bias magnets so that they are able to provide substantially uniform effective magnetic fields to bias the free layer of the magnetoresistance (MR) sensor of the read element.

Abstract: Systems and methods for fabricating a microelectric device are provided herein. Various embodiments provide for systems and methods for fabricating a magnetic recording pole using plasma-enhanced chemical vapor deposition (PECVD) when depositing seed material. For some embodiments, fabrication of the magnetic recording pole may comprise using plasma-enhanced chemical vapor deposition (PECVD) Ru as an adhesion layer for a plating seed layer.

Abstract: A magnetic transducer having an air-bearing surface (ABS) is described. The magnetic transducer includes a pole and at least one coil for energizing the pole. The pole has a pole tip proximate to the ABS, a yoke distal from the ABS, and a bottom surface including a bottom bevel. At least the yoke includes at least one sidewall having a first angle and a second angle. The first angle is between the bottom surface and the at least one sidewall. The second angle is a constant distance along the at least one sidewall from the first angle.

Abstract: An example double-sided image sensor includes a semiconductor die, a photodetector, a charge-to-voltage converter, and support circuitry. The semiconductor die has a first side and a second side that is opposite the first side. The photodetector is disposed within the semiconductor die on the first side for accumulating an image charge in response to light incident on the first side. The charge-to-voltage converter is disposed within the semiconductor die on the first side. The transfer gate is also disposed on the first side of the semiconductor die between the photodetector and the charge-to-voltage converter to transfer the image charge from the photodetector to the charge-to-voltage converter. Support circuitry of the image sensor is disposed within the semiconductor die on the second side and is electrically coupled to the charge-to-voltage converter.

Abstract: A writer main pole for a perpendicular magnetic recording system is provided. The writer pole has a tunable bottom gap to side gap ratio, and may be formed using deposition of a first seed layer through an ion beam deposition process, deposition of a second seed layer through a physical vapor deposition process, and deposition of a non-magnetic gap layer through a chemical vapor deposition process.

Abstract: A method for fabricating a magnetic recording transducer having a magnetic writer pole with a short effective throat height is provided. In an embodiment, a writer structure comprising a magnetic writer pole having a trailing bevel and a nonmagnetic stack on the top surface of the writer pole is provided. A dielectric write gap layer comprising alumina is deposited over the trailing bevel section and the nonmagnetic stack; and at least one etch stop layer is deposited over the dielectric write gap layer. A layer of nonmagnetic fill material is deposited over the etch stop layer and to form a nonmagnetic bevel by performing a dry etch process. The etch stop layer(s) are removed from the short throat section; and a trailing shield is deposited over the short throat section, nonmagnetic bevel, and nonmagnetic stack top surface.

Abstract: Disclosed in the present invention are a compound of the general structure formula LQC-T as shown below, wherein R represents an aromatic organic acid or phenol or the structural analogue thereof, such as protocatechuic acid, protocatechuic aldehyde, vanillic acid, gallic acid, caffeic acid, ferulic acid etc., and the synthesis and use of the compound. The compounds promote new blood vessel growth in the chick embryo chorioallantoic membrane, wherein LQC-T4 can be used to prepare a medicine for treating ischemic brain injury (stroke) and its sequelae.

Abstract: A method and system for providing a magnetic read transducer is described. The magnetic recording transducer includes a write pole, a nonmagnetic gap, a magnetic seed layer, a trailing shield and coil(s) that energize the write pole. The write pole is configured to write to a media. The nonmagnetic gap is between the write pole and the magnetic seed layer. The magnetic seed layer includes a high moment layer and a magnetic buffer layer. The high moment layer is between the nonmagnetic gap and the magnetic buffer layer. The high moment layer has a saturation magnetization greater than 2.3 T and a first corrosion potential. The magnetic buffer layer has a second corrosion potential less than the first corrosion potential. The magnetic seed layer is between the trailing shield and the nonmagnetic gap layer. The magnetic buffer layer is between the trailing shield and the high moment layer.

Abstract: A method for fabricating a magnetic transducer having an air-bearing surface (ABS). An underlayer having a first and second regions and a bevel connecting these regions is provided. The first region is thicker and closer to the ABS than the second region. An intermediate layer conformal with the underlayer is provided. A hard mask layer having a top surface perpendicular to the ABS is formed on the intermediate layer. Part of the hard mask and intermediate layers are removed to provide a trench. The trench has a bottom surface and sidewalls having a first angle between the bottom surface and the intermediate layer and a second angle corresponding to the hard mask layer. A pole is provided in the trench. The pole has a pole tip, a yoke distal, and a bottom bevel. At least the yoke includes sidewalls having sidewall angles corresponding to the first and second angles.

Abstract: Methods for fabricating TMR and CPP GMR magnetic heads using a chemical mechanical polishing (CMP) process with a patterned CMP conductive protective layer for sensor stripe height patterning. The method comprises defining a stripe height of a read sensor of a magnetic head reader. The method further comprises refill depositing an insulator layer on the read sensor. The method further comprises performing a CMP process down to the conductive protective layer on the read sensor deposited while defining the read sensor to remove an overfill portion of the insulator layer above the conductive protective layer and to remove a sensor pattern masking structure on the conductive protective layer. As a result, the insulator layer is planarized and smooth with the read sensor, eliminating fencing and alumina bumps typically encountered in the insulator layer at the edge of the patterned sensor.