Abstract: The present disclosure provides a semiconductor structure with having a source/drain feature with a central cavity, and a source/drain contact feature formed in central cavity of the source/drain region, wherein the source/drain contact feature is nearly wrapped around by the source/drain region. The source/drain contact feature may extend to a lower most of a plurality semiconductor layers.

Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.

Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.

Abstract: A traction battery pack venting system includes a plurality of battery arrays within a traction battery pack. The battery arrays each have a plurality of individual battery cells. The system further includes a divider system that provides a plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are separate and distinct from the other vented gas receiving compartments within the plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are associated with one of the battery arrays. Each of the vented gas receiving compartments can be associated with a manifold. The vent gas produced from thermal runaway can be discharged to the vented gas receiving compartments, directed to a manifold, and discharge to the external atmosphere.

Abstract: Battery cell grouping solutions are disclosed for assembling traction battery packs that include cell-to-pack battery systems. A cell grouping assembly may be utilized to establish a common datum reference plane relative to multiple groupings of battery cells. An exemplary assembly method may include positioning the groupings of battery cells relative to the cell grouping assembly, and then applying a compressive force to the groupings of battery cells to provide cell stacks of the cell-to-pack battery system. The grouped cell stacks may then be located to an enclosure tray of the traction battery pack.

Abstract: Traction battery packs are disclosed that include battery systems. A cell stack/cell matrix of the battery system may be positioned within an enclosure tray of the traction battery pack. A wedge insert may be positioned at an interface between the cell stack/cell matrix and a side wall of the enclosure tray. The side wall may include a draft angle. The wedge insert may be configured to translate the draft angle in order to apply a compressive load in a direction that is substantially normal to the cell stack/cell matrix.

Abstract: A battery pack assembly method includes compressing a first cell stack, compressing a second cell stack, and inserting the first cell stack together with the second cell stack into a cell-receiving opening of an enclosure structure. Another traction battery pack assembly method includes simultaneously inserting a plurality of separate cell stacks into an enclosure structure when the plurality of cell stacks are each compressed by a compression fixture and, after the inserting, compressing the plurality of cell stacks using the enclosure structure.

Abstract: A traction battery pack assembling method includes compressing a first cell stack within a first compression fixture, compressing a second cell stack within a second compression fixture, positioning the first cell stack and the first compression fixture next to the second cell stack and the second compression fixture, and inserting the first and second cell stacks into a cell-receiving opening of an enclosure structure by pushing the first and second cell stacks together into the cell-receiving opening.

Abstract: A traction battery pack assembly includes battery cells, an enclosure tray, an enclosure cover that is secured to enclosure tray to provide an interior area that houses the plurality of battery cells, and an electronics support plate supported by the enclosure cover. A traction battery electronics support method includes positioning battery cells of a traction battery pack within an enclosure tray of the traction battery pack, connecting at least one electronics module electrically to other components of the traction battery pack. After the connecting, the method includes securing an electronics support plate to an enclosure cover of the traction battery pack. The electronics support plate supports the at least one electronics module.

Abstract: Manufacturing processes are disclosed for assembling traction battery packs that include cell-to-pack battery systems. An exemplary assembly method includes inserting a cell matrix of the cell-to-pack battery system into a cell-compressing opening of an enclosure tray using a top-down approach. The method may include compressing a plurality of cell stacks to a desired length, compressing the cell stacks together in a transverse direction to form the cell matrix, and then installing the cell matrix as a single unit into the cell-compressing opening of the enclosure tray.

Abstract: Cover attachments are disclosed for securing an enclosure cover to a cell row/battery cell separator on traction battery packs that include cell-to-pack battery systems. One or more separators of a cell-to-pack battery system may be configured to separate cell stack rows or battery cells within the cell-to-pack battery system. A cover attachment (e.g., a clip, an adhesive puck, a magnet assembly, a hook and loop assembly, a ball-and-socket assembly, etc.) may connect to a portion of the separator for securing the enclosure cover directly to the cell-to-pack battery system. The combination of the cover attachments and the separators provides for enclosure cover retention at interior regions of the cell-to-pack battery system, maintains the enclosure cover at a spaced distance apart from the battery cells of the cell-to-pack battery system, and creates a desired amount of pack-level stiffness for distributing loads through the cell-to-pack battery system.

Abstract: Manufacturing processes are disclosed for assembling traction battery packs that include battery systems, such as cell-to-pack battery systems. An exemplary assembly method includes inserting one or more cell stacks of the cell-to-pack battery system into a cell-compressing opening of an enclosure tray. The method may involve the use of slider plates that provide sliding surfaces that facilitate the insertion of the cell stacks into the cell compressing opening.

Abstract: Traction battery packs are disclosed that include cell-to-pack battery systems. A cell stack/cell matrix of the cell-to-pack battery system may be positioned within an irregularly shaped enclosure tray of the traction battery pack. A block insert may be positioned at an interface between the cell stack/cell matrix and an irregularly shaped interior surface of the enclosure tray. The block insert may be configured to facilitate insertion of the cell stack/cell matrix into the enclosure tray, transfer compression loads from the enclosure tray walls to the cell stack/cell matrix, resist battery cell compression loads, etc.

Abstract: A battery pack assembly method includes compressing at least one cell stack, inserting the at least one cell stack into a cell-receiving opening of an enclosure structure, and pushing at least one cell of the at least one cell stack out of the enclosure structure using a pusher. Another traction battery pack assembly method includes moving a cell stack into an enclosure structure from a compression fixture that compresses the cell stack. The cell stack includes a plurality of battery cells. After the moving, the method compresses the cell stack using the enclosure structure. The method then includes establishing electrical connections between the battery cells of the cell stack, and testing the electrical connections prior to securing a busbar to the cell stack.

Abstract: Traction battery pack designs for use in electrified vehicles may include a vent management system adapted for managing battery cell vent byproducts during battery thermal events. The vent management system includes a multi-layered structure, with each layer of the structure having a unique function related to mitigating thermal propagation. The combined functions of the vent management system may include but are not limited to guiding vent byproducts along a desired path and direction, reducing the internal volume of the traction battery pack, and absorbing/trapping solid particles of the vent byproducts.

Abstract: A traction battery pack venting system includes a plurality of battery arrays within a traction battery pack. The battery arrays each have a plurality of individual battery cells. The system further includes a divider system that provides a plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are separate and distinct from the other vented gas receiving compartments within the plurality of vented gas receiving compartments. Each of the vented gas receiving compartments are associated with one of the battery arrays. Each of the vented gas receiving compartments can be associated with a manifold. The vent gas produced from thermal runaway can be discharged to the vented gas receiving compartments, directed to a manifold, and discharge to the external atmosphere.

Abstract: A projecting lamp structure having a light adjusting device is provided. The projecting lamp structure includes a light source disposed on a circuit board and configured to provide light rays. A lens having an asymmetrical bat-wing candle power distribution is disposed on the circuit board, wherein the lens is configured to receive the light rays and emits the light rays. A light adjusting device is disposed on the circuit board and surrounding the lens having the asymmetrical bat-wing candle power distribution. The light adjusting device includes an opening and the light adjusting device is configured to adjust the light rays through the opening to form an illumination region having a preset shape by adjusting a geometric shape of the opening corresponding to the lens having the asymmetrical bat-wing candle power distribution.

Abstract: A projecting lamp structure having a light adjusting device is provided. The projecting lamp structure includes a light source disposed on a circuit board and configured to provide light rays. A lens having an asymmetrical bat-wing candle power distribution is disposed on the circuit board, wherein the lens is configured to receive the light rays and emits the light rays. A light adjusting device is disposed on the circuit board and surrounding the lens having the asymmetrical bat-wing candle power distribution. The light adjusting device includes an opening and the light adjusting device is configured to adjust the light rays through the opening to form an illumination region having a preset shape by adjusting a geometric shape of the opening corresponding to the lens having the asymmetrical bat-wing candle power distribution.

Abstract: A projection light source structure having the bat-wing candle power distribution is described. The projection light source structure includes a light-emitting diode, a prism sheet and/or a reflection structure. The light source is adjusted by a prism sheet and/or a diffuser assembly to control the LED light source to form a bat-wing candle power distributions with a uniform emitting light, and by the reflection structure so that the emitting light to form a predetermined shape of the illuminance area.