Abstract: A semiconductor structure includes a dielectric layer over a substrate, a via conductor over the substrate and in the dielectric layer, and a first graphene layer disposed over the via conductor. In some embodiments, a top surface of the via conductor and a top surface of the dielectric layer are level. In some embodiments, the first graphene layer overlaps the via conductor from a top view. In some embodiments, the semiconductor structure further includes a second graphene layer under the via conductor and a third graphene layer between the dielectric layer and the via conductor. In some embodiments, the second graphene layer is between the substrate and the via conductor.

Abstract: A deceleration device of a tape rule is equipped with a speed reduction gear wheel in the tape rule housing. The speed reduction gear wheel is in mesh with a transmission gear wheel of a reel for coiling a measuring tape such that the rotational speed of the reel when retrieving the extended tape is retarded thereby preventing the danger of scratching the user's finger or damaging the tape itself by abrasion or impingement. Engagement of the speed reduction gear wheel and the transmission gear wheel can be released by operating a flat pusher plate provided on the housing.

Abstract: An improved brake structure of a tape measure mainly includes a pair of corresponding slide slots which are set at the inner side of one side of the upper housing and the lower housing of a tape measure, a pair of lodging troughs extended from the end portion, which are near the outlet of the tape, of the sliding slots, a pair of slide ways at both sides of the control part combined in slide slots to slide in the slide slots, a slide piece extended from the front end portion of the control part, a pair of lodging blocks extended from both sides of the center of the slide piece, and an inset hole set at the front end of the slide piece. The lodging blocks are hold to the upper edge of the lodging troughs. Below the slide slots of the enclosure, a position pair of columns is set at one side to be combined with a brake part. A guide piece of the brake part is inset into the inset hole at the front end of the slide piece.