Embodiments of the present disclosure relates to an integrated circuit including an array of memory cells connected to word lines and bit lines located on opposite sides of the memory cells. The memory cell may include gate all around transistors. A memory circuit according to the present disclosure also includes edge cells having word line tap structures configured to connect front side word lines with back side word lines. Some embodiments of the present disclosure provide an IC chip having memory cells with power rail on the front side and logic cells with power rail on the back side.

A stator comprising an inner ring, the inner ring comprising a plurality of radially projecting teeth, each tooth being connected to adjacent teeth by respective material bridges at radially inner ends of the teeth, wherein at least some of the material bridges are asymmetric in shape. Each tooth is separated from the adjacent teeth by respective slots, wherein the slots of the inner ring are open at radially outer ends of the teeth. The stator comprises an outer ring, the outer ring located at the radially outer ends of the teeth.

A stator comprising an inner ring, the inner ring comprising a plurality of radially projecting teeth, each tooth being connected to adjacent teeth by respective material bridges at radially inner ends of the teeth, wherein at least some of the material bridges are asymmetric in shape. Each tooth is separated from the adjacent teeth by respective slots, wherein the slots of the inner ring are open at radially outer ends of the teeth. The stator comprises an outer ring, the outer ring located at the radially outer ends of the teeth.

A method for manufacturing a motor core includes forming multiple blocks, stacking the blocks to form a stacked body, and detecting an identifying portion with a detection device. The forming the blocks includes forming, only in the iron core piece that forms one end face of each block, an identifying portion for identifying the progressive press device that forms that block. The forming, only in the iron core piece that forms one end face of each block, the identifying portion includes forming the identifying portion in a surface of the iron core piece that forms the one end face of the block. The stacking the blocks to form the stacked body includes stacking, to form the stacked body, only the blocks formed by the progressive press device corresponding to the detected identifying portion among the multiple blocks.

A method for manufacturing a motor core includes forming multiple blocks, stacking the blocks to form a stacked body, and detecting an identifying portion with a detection device. The forming the blocks includes forming, only in the iron core piece that forms one end face of each block, an identifying portion for identifying the progressive press device that forms that block. The forming, only in the iron core piece that forms one end face of each block, the identifying portion includes forming the identifying portion in a surface of the iron core piece that forms the one end face of the block. The stacking the blocks to form the stacked body includes stacking, to form the stacked body, only the blocks formed by the progressive press device corresponding to the detected identifying portion among the multiple blocks.

A stator core includes slots, and further includes a first cutout portion, two second cutout portions and two third cutout portions are formed on the outer circumference of the stator core. A center of the first cutout portion in the circumferential direction and a center of each second cutout portion in the circumferential direction are at an angle of 90 degrees with respect to the center axis. The two third cutout portions are formed on both sides of a straight line passing though the center axis and the center of the first cutout portion. A first contact portion in contact with a shell is formed between the two third cutout portions. When D1 represents a minimum distance from the first contact portion to its closes slot, and D2 represents a minimum distance from each third cutout portion to its closet slot, 1.00D1/D21.60 is satisfied.

A stator core includes slots, and further includes a first cutout portion, two second cutout portions and two third cutout portions are formed on the outer circumference of the stator core. A center of the first cutout portion in the circumferential direction and a center of each second cutout portion in the circumferential direction are at an angle of 90 degrees with respect to the center axis. The two third cutout portions are formed on both sides of a straight line passing though the center axis and the center of the first cutout portion. A first contact portion in contact with a shell is formed between the two third cutout portions. When D1 represents a minimum distance from the first contact portion to its closes slot, and D2 represents a minimum distance from each third cutout portion to its closet slot, 1.00D1/D21.60 is satisfied.

A motor includes a stator having a winding that when selectively energized produces an electromagnetic field within a rotor cavity, and a rotor disposed within the rotor cavity of the stator and in electromagnetic communication with the winding and the electromagnetic field. The rotor includes a drive shaft, a rotor body that extends around the drive shaft and that defines a plurality of reluctance voids, and magnet inserts that are disposed within the reluctance voids. The magnet inserts occupy at least a portion of a space defined by the reluctance voids. The magnet inserts and the reluctance voids cooperate with the electromagnetic field to produce an electromagnetic torque.

A motor includes a stator having a winding that when selectively energized produces an electromagnetic field within a rotor cavity, and a rotor disposed within the rotor cavity of the stator and in electromagnetic communication with the winding and the electromagnetic field. The rotor includes a drive shaft, a rotor body that extends around the drive shaft and that defines a plurality of reluctance voids, and magnet inserts that are disposed within the reluctance voids. The magnet inserts occupy at least a portion of a space defined by the reluctance voids. The magnet inserts and the reluctance voids cooperate with the electromagnetic field to produce an electromagnetic torque.

The invention relates to a method and a device for producing laminated cores (2) from laminations (1), in which an adhesive medium is applied as at least one adhesive point (22) to the top of the surface of a sheet metal insulation (21) of a sheet metal strip (5), which is guided horizontally with respect to the direction of gravity, by means of an application unit (35) via an application head (32). Advantages for the structure and function result from the fact that the adhesive medium is transferred as at least one adhesive point (22) to the surface of the sheet metal insulation (21) of the sheet metal strip (5) or a lamination (1) cut from this strip without movable components in the application head (32), the application head (32) being moved perpendicularly relative to the surface of the sheet metal strip (5) in order to transfer the adhesive medium in the form of the at least one adhesive point (22).