Abstract: A low permeability electrical feed-through involves a laminated structure having a conductor layer sandwiched between adjacent insulator layers, which are sandwiched between adjacent diffusion control layers, where the laminated structure provides a relatively narrow and long, high aspect ratio diffusion channel to inhibit the leakage of gas from within a sealed device to the external environment. The electrical feed-through may comprise lower and upper electrical connection pads that are positioned within different regions of the feed-through but still electrically connected by way of a first via positioned in a sealed region, the conductor layer, and a second via positioned in an external environment region.

Abstract: A method to fabricate an imprint template for bit-patterned magnetic recording media using block copolymers (BCPs) integrates data region patterning and servo region patterning. A heat sink layer is formed on the imprint substrate only in the data regions. A sublayer for the BCP is deposited over both the data regions and the servo regions and patterned to form stripes in the data regions and servo features in the servo regions. A BCP is then deposited in both the data and servo regions. Only the BCP in the data regions is heated, which causes phase separation of the BCP in the data regions into the two BCP components. The selective heating may be accomplished by directed controlled laser radiation to only the data regions. The heat sink layer below the data regions absorbs the heat from the laser radiation, confining it to the data regions.

Abstract: A method to fabricate an imprint template for bit-patterned magnetic recording media using block copolymers (BCPs) integrates data region patterning and servo region patterning. A heat sink layer is formed on the imprint substrate only in the data regions. A sublayer for the BCP is deposited over both the data regions and the servo regions and patterned to form stripes in the data regions and servo features in the servo regions. A BCP is then deposited in both the data and servo regions. Only the BCP in the data regions is heated, which causes phase separation of the BCP in the data regions into the two BCP components. The selective heating may be accomplished by directed controlled laser radiation to only the data regions. The heat sink layer below the data regions absorbs the heat from the laser radiation, confining it to the data regions.

Abstract: A sealed storage canister is provided. The sealed storage canister in one example includes a sealed enclosure configured to be substantially hermetically sealed for retaining a predetermined gas or gas mixture, multiple unsealed Hard Disk Drives (HDDs) located within the sealed enclosure, with the multiple unsealed HDDs configured to allow the predetermined gas or gas mixture to move through the multiple unsealed HDDs, at least one mounting element configured to receive the multiple HDDs, and an external connector configured to be externally accessible, with the external connector being directly or indirectly electrically coupled to the multiple unsealed HDDs.

Abstract: A storage canister is provided. The storage canister in one example includes an enclosure, multiple Hard Disk Drives (HDDs) located within the enclosure, a plurality of mounting elements configured to receive the multiple HDDs, wherein each mounting element of the plurality of mounting elements is configured to receive a HDD, a plurality of suspension elements supporting the plurality of mounting elements, with each suspension element of the plurality of suspension elements supporting and providing vibration isolation to a corresponding HDD of the multiple HDDs, and an external connector configured to be externally accessible, with the external connector being electrically coupled to the plurality of mounting elements.

Abstract: The present disclosure relates to an apparatus that includes an electrical connector that is coupled to a housing and that extends through a feedthrough aperture in the housing. The electrical connector has an electrically insulating base that has multiple layers of electrically insulating material with electrical traces extending between the multiple layers. The electrically insulating base also has a first portion disposed in the interior cavity, a second portion disposed external to the interior cavity, and a sealing portion disposed between the inwardly positioned portion and the outwardly positioned portion. The electrical connector also includes a first plurality of electrical leads that are disposed on the outwardly positioned portion of the electrically insulating base and a second plurality of electrical leads disposed on the inwardly positioned portion of the electrically isolating base material. Each of the electrical leads is electrically coupled to a corresponding lead.

Abstract: The present disclosure relates to an apparatus that includes an electrical connector that is coupled to a housing and that extends through a feedthrough aperture in the housing. The electrical connector has an electrically insulating base that has multiple layers of electrically insulating material with electrical traces extending between the multiple layers. The electrically insulating base also has a first portion disposed in the interior cavity, a second portion disposed external to the interior cavity, and a sealing portion disposed between the inwardly positioned portion and the outwardly positioned portion. The electrical connector also includes a first plurality of electrical leads that are disposed on the outwardly positioned portion of the electrically insulating base and a second plurality of electrical leads disposed on the inwardly positioned portion of the electrically isolating base material. Each of the electrical leads is electrically coupled to a corresponding lead.

Abstract: A hard disk drive (HDD) assembly includes a conventional HDD enclosed within a two-piece metal container, whereby a lid is hermetically sealed to a body by melted metal and wherein the container is filled with helium gas. For example, the container may be formed of tin-plated steel and the two pieces soldered together to form the hermetically sealed container, having an electrical feed-through sealed similarly.

Abstract: A lead assembly for providing electrical stimulation of patient tissue includes at least one elongated lead body, each of the at least one lead bodies having a distal end and a proximal end. A plurality of electrodes are disposed at the distal end of the at least one lead body, each of the electrodes having an outer surface. A plurality of dimples are defined along the outer surface of at least one of the plurality of electrodes, the plurality of dimples configured and arranged to provide a larger surface area for the at least one dimpled electrode than that of a similarly-sized electrode with a flat outer surface. A plurality of terminal are disposed at the proximal end of the at least one lead body. A plurality of conductive wires couple each of the plurality of electrodes to at least one of the plurality of terminals.

Abstract: A piezoelectric (PZT) microactuator directly attached to a head slider, for mounting on a suspension for use as a third stage actuator in a hard disk drive, is fabricated from and comprises a single sheet of a piezoelectric material with the top and bottom covered with an electrically conductive material to form the electrodes. The piezoelectric material is differential-poled so that one lateral portion is poled in one direction and another lateral portion is poled in the opposite direction. When a drive voltage is applied between the top and bottom electrodes, one portion of the piezoelectric material expands while the other portion contracts, thereby providing a rotational movement. The direction of motion of each respective portion is determined by the direction of the applied voltage and the respective direction of poling.

Abstract: A lead assembly for providing electrical stimulation of patient tissue includes at least one elongated lead body, each of the at least one lead bodies having a distal end and a proximal end. A plurality of electrodes are disposed at the distal end of the at least one lead body, each of the electrodes having an outer surface. A plurality of dimples are defined along the outer surface of at least one of the plurality of electrodes, the plurality of dimples configured and arranged to provide a larger surface area for the at least one dimpled electrode than that of a similarly-sized electrode with a flat outer surface. A plurality of terminal are disposed at the proximal end of the at least one lead body. A plurality of conductive wires couple each of the plurality of electrodes to at least one of the plurality of terminals.

Abstract: A lead assembly for providing electrical stimulation of patient tissue includes at least one elongated lead body, each of the at least one lead bodies having a distal end and a proximal end. A plurality of electrodes are disposed at the distal end of the at least one lead body, each of the electrodes having an outer surface. A plurality of dimples are defined along the outer surface of at least one of the plurality of electrodes, the plurality of dimples configured and arranged to provide a larger surface area for the at least one dimpled electrode than that of a similarly-sized electrode with a flat outer surface. A plurality of terminal are disposed at the proximal end of the at least one lead body. A plurality of conductive wires couple each of the plurality of electrodes to at least one of the plurality of terminals.

Abstract: A lead assembly for providing electrical stimulation of patient tissue includes at least one elongated lead body, each of the at least one lead bodies having a distal end and a proximal end. A plurality of electrodes are disposed at the distal end of the at least one lead body, each of the electrodes having an outer surface. A plurality of dimples are defined along the outer surface of at least one of the plurality of electrodes, the plurality of dimples configured and arranged to provide a larger surface area for the at least one dimpled electrode than that of a similarly-sized electrode with a flat outer surface. A plurality of terminal are disposed at the proximal end of the at least one lead body. A plurality of conductive wires couple each of the plurality of electrodes to at least one of the plurality of terminals.