Abstract: A packaging substrate is fabricated using two plating steps for respectively plating the gold-plating areas defined on two opposite sides of the substrate. Before plating, the gold-plating areas are defined by a layer of solder mask. By doing this, the plated gold layer will not overlap with the solder mask, thereby preventing peeling or reliability problems.

Abstract: A collagen product with an alginate sheath and a method for producing the same are described. A first solution containing at least an alginate is prepared. A second solution containing collagen and at least an alkaline earth metallic salt is then prepared. The second solution is spun through a spinneret in the first solution to obtain a collagen product with an alginate sheath. The collagen product with an alginate sheath is dehydrated with hydrophilic solvent.

Abstract: A locking mechanism mounted on a cover to lock the cover onto a frame. In the locking mechanism, when a handle shaft is rotated, a first cam element of a rotating sheet drives a second cam element of a sliding sheet due to rotation. A second horizontal fastening element of the sliding sheet slides towards a first horizontal sliding element of the cover, and a second horizontal fastening element of the sliding sheet fastens with a first horizontal fastening element of the frame. A horizontal speed of motion of the sliding sheet with respect to cam rotation is proportional to the rotational angle of the handle shaft, so that there are no unequal forces caused by the handle shaft.

Abstract: A locking mechanism is disclosed, which is mounted on a cover to lock the cover onto a frame. In the locking mechanism, when a handle shaft is rotated, a first cam element of a rotating sheet drives a second cam element of a sliding sheet due to rotation, and so a second horizontal fastening element of the sliding sheet slides towards a first horizontal sliding element of the cover, and a second horizontal fastening element of the sliding sheet fastens with a first horizontal fastening element of the frame. A horizontal speed of motion of the sliding sheet with respect to cam rotation is proportional to the rotational angle of the handle shaft, and so there are no unequal forces caused by the handle shaft. Moreover, the door locking mechanism can simplify the structural design to reduce the number of parts and improve convenience and the locking motion.

Abstract: The present invention relates to a composite sponge wound dressing and method for producing the same. Chitosan and &bgr;-Chitin is mixed in a specific ratio for forming the sponge for wound repairing. Particularly, when said ratio is between 0.1˜1, the composite sponge wound dressing has a better absorption and tensile strength.

Abstract: The present invention relates to a composite sponge wound dressing and method for producing the same. Chitosan and &bgr;-Chitin is mixed in a specific ratio for forming the sponge for wound repairing. Particularly, when said ratio is between 0.1-1, the composite sponge wound dressing has a better absorption and tensile strength.