Abstract: A power switch and a semiconductor device thereof are disclosed. The power switch device includes a first transistor cell, a second transistor cell, a body region and a conductive layer. The first transistor cell includes a first electrode. The second transistor cell includes a second electrode. The body region is disposed between the first transistor cell and the second transistor cell. The conductive layer is electrically connected with the body region, the first electrode and the second electrode respectively.

Abstract: A power switch and a semiconductor device thereof are disclosed. The power switch device includes a first transistor cell, a second transistor cell, a body region and a conductive layer. The first transistor cell includes a first electrode. The second transistor cell includes a second electrode. The body region is disposed between the first transistor cell and the second transistor cell. The conductive layer is electrically connected with the body region, the first electrode and the second electrode respectively.

Abstract: A chain consists of at least a pair of chain links, a pair of side plates mounted between the chain links, a chain roller composed of at least two rolling elements mounted between the side plates, and a rivet extending through the chain links, the side plates and the rolling elements, wherein the rivet is tightly fitted with the chain links and loosely fitted with the side plates and the rolling elements so that the side plates and the rolling elements can have a pivotable movement relative to the chain links and the rivet.

Abstract: A chain includes a plurality of pairs of alternate inside links and first and second outside links, rollers and pins, wherein second ends of the first outside links and first ends of the second outside links each have a diameter greater than that of first ends of the first outside links and second ends of the second outside links, and each of the ends of the respective inside links has a diameter slightly smaller than that of the first end of the first outside link or the second end of the second outside link.

Abstract: A link for connecting a chain. The link has a first outer chain plate, a first pin, a second pin, and a second outer chain plate. The first outer chain plate has two circular holes. The pin has, at a first end, an enlarged flat head and, at a second end, a dome head near which a groove extends so as to form a neck. The second outer chain plate has a circular hole and a hole consisting of a relatively small semicircular hole overlapping partially with a relatively large semicircular hole. In a plant, the first pin is (a) inserted through a hole of the first outer chain plate, holes of two inner chain plates, and the circular hole of the second outer chain plate and (b) riveted at both heads to thereby combine these elements conventionally. The second pin is inserted through the other hole of the first outer chain plate and the enlarged flat head thereof is secured to the first outer chain plate.