Abstract: A semiconductor device includes a substrate having a logic region and a magnetoresistive random access memory (MRAM) region, a MTJ on the MRAM region, a metal interconnection on the MTJ, and a blocking layer on the metal interconnection. Preferably, the blocking layer includes a stripe pattern according to a top view and the blocking layer could include metal or a dielectric layer.

Abstract: A scented candle device includes an electromagnetic base having a casing that defines a base space and that has a top surface, and an electromagnetic unit disposed in the base space for generating a magnetic field. An electromagnetically heated scented candle is disposed on the top surface of the casing, and includes a container defining a receiving space, and a scented candle body received in the receiving space. A magnetically conductive heating member is disposed between the top surface of the casing and the container, and generates heat energy after interacting with the magnetic field of the electromagnetic unit for heating the scented candle body.

Abstract: A temperature variation power generator comprising a plurality of N type and P type semiconductor elements to form an electronic component with two extension wires on the front and end, the N type and P type semiconductor elements are aligned in array and fixed by two heat-conductive boards on top and bottom. Based on the structure described above, while application, users can heat or freeze on the surface of one of the boards, the heat absorbed by the board is transmitted to the bottom of the N type and P type semiconductor elements, the temperature variation between top and bottom of the N type, P type semiconductor elements generates weak electrical current, the electronic component accumulates all the weak current in series to form a electrical power with proper voltage and current available to be applied on small DC motors or small 3C electronic devices.

Abstract: An electromagnetic power device includes a base forming a guide section, a stator on which an electromagnet is mounted, a mover that is guided by the guide section to reciprocally and linearly move and carrying a permanent magnet, a crankshaft to which the mover is coupled by a link, and a control unit electrically coupled to the electromagnet to energize the electromagnet in a controlled manner whereby the electromagnet generates a variable magnetic field that interacts with a fixed magnetic field of the permanent magnet to move the movers toward/away from the stator. The linear movement of the mover is converted into rotary motion of the crankshaft by the link.