A process for manufacturing a magnetic tape head module involves depositing over a wafer substrate electrical traces from respective electrical lapping guides (ELGs) to an area at an end of a tape head module also formed over the substrate, fabricating a closure adjacent to the tape head module where the closure terminates outside of the area at the end of the tape head module, and electrically connecting the electrical traces to an external circuit using a wire-bonding procedure, thereby electrically connecting each ELG to the external circuit. A plurality of electrical connection pads may be deposited at the area at the end of the tape head module, and each electrical trace electrically connected to one of the pads, where electrically connecting the traces to the external circuit includes wire-bonding the pads to the circuit.

The present disclosure generally relates to a Wheatstone bridge that has four resistors. Each resistor includes a plurality of tunneling magnetoresistance (TMR) structures. Two resistors have identical TMR structures. The remaining two resistors also have identical TMR structures, though the TMR structures are different from the other two resistors. Additionally, the two resistors that have identical TMR structures each have an additional non-TMR resistor as compared to the remaining two resistors that have identical TMR structures. Therefore, the working bias field for the Wheatstone bridge is non-zero.

The present disclosure generally relates to a Wheatstone bridge that has four resistors. Each resistor includes a plurality of TMR structures. Two resistors have identical TMR structures. The remaining two resistors also have identical TMR structures, though the TMR structures are different from the other two resistors. Additionally, the two resistors that have identical TMR structures each have an additional non-TMR resistor as compared to the remaining two resistors that have identical TMR structures. Therefore, the working bias field for the Wheatstone bridge is non-zero.

According to one embodiment, a manufacturing method of a magnetic disk device including a magnetic disk that stores information, and two or more control devices is provided. The method includes acquiring power consumption of each of a plurality of control devices to be able to be included in the magnetic disk device; and selecting a combination of two or more control devices to reduce variation in total power consumption, on the basis of the acquired power consumption.

In one embodiment, an apparatus includes a module having a substrate and a closure, an array of transducers in a thin film structure on the substrate, the array being positioned along a tape bearing surface of the module, and a heating element positioned in the thin film structure and recessed from the tape bearing surface, and a controller electrically coupled to the heating element. The controller is configured to apply a current pulse of size, shape and duration sufficient to induce a permanent expansion of the array of transducers.

A magnetic head, according to one embodiment, includes a rowbar substrate having a tape support surface and a gap surface at a substrate edge. A closure is positioned opposite the gap surface of the rowbar substrate, the closure forming a portion of the tape support surface. A recessed gap region is interposed between the gap surface of the rowbar substrate and the closure, the recessed gap region having a recessed gap profile that extends between the gap surface of the rowbar substrate and the closure, the recessed gap region having a transducer row with at least one magnetic sensor on the gap surface of the rowbar substrate. An insulation layer is positioned over the recessed gap profile of the recessed gap region.

In one embodiment, an apparatus includes a module having a substrate and a closure, an array of transducers in a thin film structure on the substrate, the array being positioned along a tape bearing surface of the module, and a heating element positioned in the thin film structure and recessed from the tape bearing surface, and a controller electrically coupled to the heating element. The controller is configured to apply a current pulse of size, shape and duration sufficient to induce a permanent expansion of the array of transducers.

An apparatus according to one embodiment includes a magnetic read transducer comprised of a sensing portion and proximate magnetic shields, and a wear-resistant in-situ film on a media-facing side of the read transducer. The in-situ film is comprised of material derived from a flexible medium. The in-situ film is primarily above the read transducer.

A method according to one embodiment includes forming a wear-resistant in-situ film on a magnetic read transducer having a sensor with magnetic shields. The in-situ film including material derived from a flexible medium. The material is formed on the transducer by passing the flexible medium over the transducer at an elevated temperature.

An apparatus, according to one embodiment, includes a module having a tape bearing surface, an array of magnetic transducers, and a channel in the tape bearing surface. The channel has a longitudinal axis oriented about parallel to a longitudinal axis of the array of magnetic transducers for inducing tenting of a moving magnetic recording tape above the array of magnetic transducers. Moreover, the channel has a shape with a middle section of similar recession therealong between straight opposite ends.