Abstract: A semiconductor device includes: first, second, and third tiers formed on a substrate, wherein the first tier is formed over the substrate, the second tier is formed over the first tier, and the third tier is formed over the second tier, wherein the second tier comprises a first interconnection line that is configured to transmit a signal, and wherein a portion of the first tier disposed directly under the first interconnection line of the second tier lacks any interconnection lines and a portion of the third tier disposed directly above the first interconnection line of the second tier lacks any interconnection lines.

Abstract: Safety contrivance for bag sealer is provided, including a pair of specially designed terminal brackets mounted on opposite ends of an upper jaw of the bag sealer. The terminal bracket has an angular slot, including a vertical and a horizontal slot sections, right down the middle to create a three dimensional space in the bracket and two identical halves on the right and left sides, with a slot depth greater than the vertical length of the trimmer, so that the trimmer can be completely concealed in the bracket enclosure to prevent possible infliction of cuts or more serious body injuries even if the operator's hand is in contact with the cutting edge of the trimmer blade accidentally.

Abstract: A coin return chute structure adapted to be incorporated in a payphone includes two spaced wall plate and an outer chute member fixed between the two wall plates and defining therein a coin holding space. The coin return chute structure has a front side on which a front opening is formed for access to the coin holding space. The wall plates are each provided with three pivot holes to selectively receive therein a pivot pin for rotatably supporting lids of different sizes on the wall plates for closing the front opening. Cover plates of different sizes selected in accordance with the lid size used may be selectively fixed to the front opening for covering the portion of the opening that is not closed by the lid. An inner chute member is selectively mounted between the two wall plates to bypass the coin holding space by directing the returned coin directly out of the chute structure.

Abstract: A lower casing structure of a payphone is disclosed, including an outer casing member fit over the lower portion of the payphone and having threaded rods fixed thereon, a reinforcement plate having holes corresponding to and fit over the threaded rods, a coin container shield having a plate portion which has holes corresponding to and fit over the threaded rods and a flange having securing slots formed thereon and a support plate having holes corresponding to and fit over the threaded rods so as to sandwich the coin container shield and the reinforcement plate between the support plate and the outer casing member. Nuts engage the threaded rods for securing the support plate, as well as the coin container shield and the reinforcement plate, to the outer casing member. The support plate has a locking mechanism arranged thereon, comprising a rotatable member operable by a key to be rotatable between a locked position and an unlocked position.