Abstract: A semiconductor device includes a substrate having a magnetic tunneling junction (MTJ) region and a logic region, a magnetic tunneling junction (MTJ) on the MTJ region and a first metal interconnection on the MTJ. Preferably, a top view of the MTJ includes a circle and a top view of the first metal interconnection includes an ellipse overlapping the circle.

Abstract: Embodiments of the present disclosure provide a method for forming semiconductor device structures. The method includes forming a fin structure having a stack of semiconductor layers comprising first semiconductor layers and second semiconductor layers alternatingly arranged, forming a sacrificial gate structure over a portion of the fin structure, removing the first and second semiconductor layers in a source/drain region of the fin structure that is not covered by the sacrificial gate structure, forming an epitaxial source/drain feature in the source/drain region, removing portions of the sacrificial gate structure to expose the first and second semiconductor layers, removing portions of the second semiconductor layers so that at least one second semiconductor layer has a width less than a width of each of the first semiconductor layers, forming a conformal gate dielectric layer on exposed first and second semiconductor layers, and forming a gate electrode layer on the conformal gate dielectric layer.

Abstract: A trigger switch device of power tool for preventing accidental triggering is disclosed, comprising a trigger, provided at front end of the handle of power tool, and a safety switch, provided at a side of the handle; when neither the trigger nor the safety switch is operated, the safety switch locks the trigger so that the trigger cannot pressed; when the safety switch is pressed, the lock on the trigger is released and the trigger can be pressed. When the safety switch is released with the trigger pressed, the safety switch locks the trigger so that the trigger remains in the pressed state; when the trigger is in the pressed state and the safety switch is operated, the trigger is unlocked and automatically returns to the original non-pressed position and the safety switch locks the trigger again. As such, the trigger cannot be pressed to prevent accidental triggering.

Abstract: A trigger switch device of power tool for preventing accidental triggering is disclosed, comprising a trigger, provided at front end of the handle of power tool, and a safety switch, provided at a side of the handle; when neither the trigger nor the safety switch is operated, the safety switch locks the trigger so that the trigger cannot pressed; when the safety switch is pressed, the lock on the trigger is released and the trigger can be pressed. When the safety switch is released with the trigger pressed, the safety switch locks the trigger so that the trigger remains in the pressed state; when the trigger is in the pressed state and the safety switch is operated, the trigger is unlocked and automatically returns to the original non-pressed position and the safety switch locks the trigger again. As such, the trigger cannot be pressed to prevent accidental triggering.

Abstract: A chain saw includes a wheel and a chain plate exposed to a saw casing, a chain trained over the wheel and the plate, and a driving device for driving the wheel. The plate is formed with an elongated slot. A chain tension adjustment mechanism includes a shielding cover disposed between the casing and the plate; a slide element disposed movably between the plate and the shielding cover, has a protrusion extending through the slot in the plate; and a biasing member biasing against the slide element and the shielding cover so as to push the slide element away from the wheel, wherein, movement of the plate toward the wheel against biasing action of the biasing member results in retraction of the biasing member from its initial shape and pressing the slide element toward the wheel, thereby releasing the chain from the plate and the wheel and vice versa.

Abstract: A chain saw includes a wheel and a chain plate exposed to a saw casing, a chain trained over the wheel and the plate, and a driving device for driving the wheel. The plate is formed with an elongated slot. A chain tension adjustment mechanism includes a shielding cover disposed between the casing and the plate; a slide element disposed movably between the plate and the shielding cover, has a protrusion extending through the slot in the plate; and a biasing member biasing against the slide element and the shielding cover so as to push the slide element away from the wheel, wherein, movement of the plate toward the wheel against biasing action of the biasing member results in retraction of the biasing member from its initial shape and pressing the slide element toward the wheel, thereby releasing the chain from the plate and the wheel and vice versa.

Abstract: An intelligent eco-friendly starter battery includes pre-heating plates attached to lithium polymer cells thereof, a battery cell sensor module capable of sensing the temperature of the lithium polymer cells and controlling the pre-heating plates to pre-heat the lithium polymer cells to a predetermined temperature, a battery charging control circuit consisting of a plurality of power sensors and a battery charger for sensing the power level of each lithium polymer cell and charging each lithium polymer cell, a protection circuit assembly consisting of a field effect transistor, a relay and a controller for battery over-current and overheat protection, a transmitter receiver circuit and an antenna for transmitting the data sensed by the battery cell sensor module to a remote controller or external display.

Abstract: An intelligent eco-friendly starter battery includes pre-heating plates attached to lithium polymer cells thereof, a battery cell sensor module capable of sensing the temperature of the lithium polymer cells and controlling the pre-heating plates to pre-heat the lithium polymer cells to a predetermined temperature, a battery charging control circuit consisting of a plurality of power sensors and a battery charger for sensing the power level of each lithium polymer cell and charging each lithium polymer cell, a protection circuit assembly consisting of a field effect transistor, a relay and a controller for battery over-current and overheat protection, a transmitter receiver circuit and an antenna for transmitting the data sensed by the battery cell sensor module to a remote controller or external display.

Abstract: A car starter battery includes a housing accommodating therein multiple sets of lithium cells, a carrying-handle located on the top side of the top cover of the housing, two conducting screw holes located on the top cover at two opposite sides relative to the carrying-handle and electrically connected with the lithium polymer cells for the connection of a jumper cable with conducting screw terminals, and a charging-discharging copper screw detachably threaded into each of the two conducting screw holes for the connection of a jumper cable with conducting terminal clamps.

Abstract: An attachable battery pack having a battery body with a pivoted clamp for detachably fastening to one end of an intelligent cell phone (iPhone or Google phone) as a spare battery. The battery body is configured to overlay the display screen of the intelligent cell phone to provide protection for the display screen and includes a charging circuit and connector for charging the built-in battery of the intelligent cell phone.

Abstract: An APPLE-iPad holder type battery pack configured to hold and charge an APPLE-iPad, having a pair of high-definition speakers for output of audio signal from the APPLE-iPad and a support pivotally hinged to the back side thereof for supporting the APPLE-iPad on a flat surface in one of a series of tilting positions.

Abstract: An attachable battery pack having battery body with a pivoted clamp for detachably fastened to one end of an intelligent cell phone (iPhone or Google phone) for charging the built-in battery of the intelligent cell phone and for the purpose of screen protection.

Abstract: A power drive assistant system includes a wheel mover detachably fastened to the seat tube of a bicycle and holding an external rotor motor in friction contact with the rear wheel of the bicycle and controllable to rotate the rear wheel of the bicycle by means of a friction force, a rechargeable battery pack mounted on the seat pillar of the saddle of the bicycle to provide the external rotor motor of the wheel mover with the necessary working voltage, and a speed controller mounted on the handlebars of the bicycle for regulating the speed of the external rotor motor.

Abstract: A bicycle-running assistant system includes a wheel mover detachably fastened to the seat tube of a bicycle and holding an external rotor motor in friction contact with the rear wheel of the bicycle and controllable to rotate the rear wheel of the bicycle by means of a friction force, a rechargeable battery pack mounted on the seat pillar of the saddle of the bicycle to provide the external rotor motor of the wheel mover with the necessary working voltage, and a speed controller mounted on the handlebars of the bicycle for regulating the speed of the external rotor motor.

Abstract: A lever lock assembly includes an interior handle assembly, an exterior handle assembly, a latch assembly, and a controlling assembly. When in a latched position, rotation of an exterior lever of the exterior handle assembly is a free rotation, thereby avoiding forcible unlatching by burglars.