Abstract: A method includes partially forming a top chamfer on a disc substrate with a first brush, and partially forming a bottom chamfer on the disc substrate with a second brush. The method also includes completing the formation of the bottom chamfer with the first brush, and completing the formation of the top chamfer with the second brush.

Abstract: The present disclosure relates to methods of forming adhesive films having at least one pressure-sensitive adhesive polymer, related films, and related methods of using such films in lapping processes.

Abstract: A data storage system may store a first data block having a first data configuration generated by a host in a non-volatile memory that is connected to a data module. A data strategy may be generated with the data module in response to the storage of data with the data strategy consisting of at least one trigger associated with identifying the first data block as hot. The first data block can be replicated to a different memory location with a second data configuration as directed by the data strategy with the first data configuration being different than the second data configuration.

Abstract: A method involves determining a threshold error rate that will result on data stored on a magnetic disk surface of a disk drive being unrecoverable. The method also involves determining a seek velocity that will overwrite sufficient portions of the data such the data will exhibit at least the threshold error rate. The disk drive performs at least one traversal of the magnetic disk surface with a head of the disk drive that emits an erase field during the at least one traversal at the seek velocity. The at least one traversal sanitizes the data.

Abstract: A system on chip (SOC) integrated circuit device having an incorporated ferroelectric memory configured to be selectively refreshed, or not, depending on different operational modes. The ferroelectric memory is formed of an array of ferroelectric memory elements (FMEs) characterized as non-volatile, read-destructive semiconductor memory cells each having at least one ferroelectric layer. The FMEs can include FeRAM, FeFET or FTJ constructions. A read/write circuit writes data to the FMEs and subsequently reads back data from the FMEs responsive to respective write and read signals supplied by a processor circuit of the SOC. A refresh circuit is selectively enabled in a first normal mode to refresh the FMEs after a read operation, and is selectively disabled in a second exception mode so that the FMEs are not refreshed after a read operation. The FMEs can be used as a main memory, a cache, a buffer, an OTP, a keystore, etc.

Abstract: The slow speed of conventional selective electroplating and L-PED (and further requirement of a series of masks in the case of selective electroplating) necessary to generate a metallic three-dimensional object makes conventional selective electroplating and L-PED not viable for mass manufacturing metallic three-dimensional objects. The presently disclosed technology generally utilizes electroplating and L-PED technologies with a screen electroplating process. The screen electroplating process disclosed herein is capable of achieving a faster throughput and a lower workpiece temperature than traditional 3D printing processes can provide, particularly traditional metal 3D printing processes. As a result, the presently disclosed screen electroplating process is able to achieve much faster results in printing a complex three-dimensional metallic structure using electroplating.

Abstract: A data storage system can utilize one or more data storage devices that employ a solid-state non-volatile read destructive memory consisting of ferroelectric memory cells. A leveling strategy can be generated by a wear module connected to the memory with the leveling strategy prescribing a plurality of memory cell operating parameters associated with different amounts of cell wear. The wear module may monitor activity of a memory cell and detect an amount of wear in the memory cell as a result of the monitored activity, which can prompt changing a default set of operating parameters for the memory cell to a first stage of operating parameters, as prescribed by the leveling strategy, in response to the detected amount of wear.

Abstract: Connector devices or connectors for use in interconnection to a circuit board may be configured in an open or closed configuration. The connectors devices may utilize a shape memory alloy (SMA) actuator to move clamping portions with respect to each other into one or both of the open or closed positions.

Abstract: An apparatus is configured to include a first magnetic layer, a second magnetic layer and a break layer between the first magnetic layer and the second magnetic layer. The first magnetic layer includes a Curie temperature gradient between a first surface and a second surface of the first magnetic layer. The second magnetic layer includes a Curie temperature gradient between a third surface and a fourth surface of the second magnetic layer. The first magnetic layer has an average Curie temperature that is higher than the second magnetic layer.

Abstract: A data media may generally be configured in accordance with various embodiments with contactingly adjacent first and second heatsink layers that are tuned with a common crystallographic orientation and with different thermal conductivities to provide a predetermined thermal gradient. The data media may further be configured with a recording layer formed with the common crystallographic orientation adjacent the first and second heatsink layers.

Abstract: A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.

Abstract: An alternate reality, such as virtual reality or augmented reality, environment can experience optimized performance with a data system arranged with an interaction device connected to a virtual reality assembly. Base content and user content can respectively be downloaded and stored to a local data storage of the virtual reality assembly. The content may be utilized to proactively generate comprehensive content that consists of merged aspects of the base content and the user content. The comprehensive content can then be executed to create an immersive digital reality conveyed to a user via the interaction device.

Abstract: A data storage system can have a hardware interposer connected inline between a plurality of controllers and a plurality of memories. A bus of the hardware interposer may be monitored with a security breach monitor of the hardware interposer to allow a deviation from a predetermined address range to be detected by the security breach monitor, which prompts the security breach monitor to block access through the hardware interposer for a first controller of the plurality of controllers.

Abstract: A distributed data storage system may connect a host to a device and a dedication module. The dedication module can identify a manufacturing origin of the device before dedicating a type of host-generated data access request to the device. The type of host-generated data access request is chosen by the dedication module in response to an operating capability correlated to the device by the dedication module based on the identified manufacturing origin. At least one host-generated request of the dedicated type is then completed with the device.

Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

Abstract: A storage command is received that is directed to a distributed storage system. Based on the storage command, a metadata update is targeted to a logical block address of metadata storage of the distributed storage system. The metadata update includes a chunk of metadata that is smaller than a block addressed by the logical block address. An atomic write command is sent to a block device interface. The command includes the chunk of metadata, the logical block address, and an offset within the block defining where the chunk of metadata is to be stored. Via the block device interface, the atomic write command is stored in a non-volatile buffer that has faster performance than the metadata storage. The chunk of metadata of the atomic write command is written from the non-volatile buffer to the block in the metadata storage via a background process using an atomic read-modify-write command.

Abstract: A magnetic recording head includes an active component and a piezoelectric actuator. The active component is disposed proximal to a media-facing surface of the magnetic recording head. The piezoelectric actuator includes a piezoelectric layer, a first electrode coupled to the piezoelectric layer, and a second electrode coupled to the piezoelectric layer. The piezoelectric actuator is configured to exert a mechanical force to displace the active component such that the displacement changes a protrusion of the active component from the media-facing surface.

Abstract: The technology disclosed herein provides a system including multiple selectable storage devices in an enclosure communicatively coupled to shared control electronics the shared control electronics including a first controller for selecting a storage device of the multiple selectable storage devices for execution of a device access command, the multiple scalable storage devices including a plurality of NVM storage devices and at least one hard disc drive (HDD) and a first signal path for transmitting a drive selection instruction from a host external to the enclosure to a first controller the first signal path being a PCIe electronic interface configured to communicate with a host, wherein the plurality of NVM storage devices shares a capacitor bank for power loss protection.