Abstract: A method of manufacturing a semiconductor device includes forming a first dielectric layer over a substrate, forming a metal layer in the first dielectric layer, forming an etch stop layer on a surface of the first dielectric layer and the metal layer, removing portions of the metal layer and the etch stop layer to form a recess in the metal layer, and forming a tungsten plug in the recess. The recess is spaced apart from a bottom surface of the etch stop layer.

Abstract: A semiconductor structure includes a substrate, a conductive region, a first insulation layer, a second insulation layer, a gate structure, a low-k spacer, a gate contact, and a conductive region contact. The low-k spacer is formed between a sidewall of the gate structure and the first insulation layer. The gate contact is landed on a top surface of the gate structure. A proximity distance between a sidewall of the gate contact and the conductive region contact along a top surface of the second insulation layer is in a range of from about 4 nm to about 7 nm. A method for manufacturing a semiconductor structure is also provided.

Abstract: A speaker with cabinet structure includes a frame in a close ring can be in any shape with inner fasten brim on circumference, a diaphragm located on front of frame, a dust proof cap is on the center of the diaphragm; a voice coil is beneath the diaphragm, an insulation ring is under the voice coil, an iron core and a magnet is also under insulation ring, a pressing ring fastens the diaphragm onto the inner fasten brim, the frame is placed on the open of a box with corresponding shape to form a sealed space inside box to bounce the diaphragm back. When the diaphragm vibrates, the sealed air inside the speaker box can perform the best frequency response, functions like a acoustic cabinet and avoid the damper, he sealed space can achieve the waterproof and moisture proof effect, the structure is simpler for lower manufacturing cost.

Abstract: An electro-optical cable, plug and socket comprising an electro-optical cable, an electro-optical plug and an electro-optical socket, the electro-optical cable wraps a plastic fiber optics and two copper wires together; the electro-optical plug in a shell body with a fiber optics plug and a line power plug; the fiber optics plug connects to the plastic fiber optics, the line power plug connects to the copper wires; the electro-optical socket is a base with a fiber optics socket and a line power socket; the electro-optical socket is installed on an electro-optical peripheral circuit board. The mechanism can reduce the numbers of different cables, plugs and sockets that reduces the tedious wiring and troublesome.

Abstract: A can-breaker including a first and a second clamping members pivotally connected with each other by a pivot member. The second clamping member is disposed with a thrusting section having a first fixing seat and a thrusting sting. An outer cover is fitted on outer side of the thrusting section. The outer cover is pivotally connected with the second clamping member. One end of the outer cover is disposed with a second fixing seat. A resilient member is connected between the first and second fixing seats. The thrusting sting is prevented from be bent or deformed. So, it can prolong the using life of the can-breaker.