Abstract: An interconnect structure includes a first conductive feature, a first dielectric layer a first etch stop layer, a second etch stop layer, a second dielectric layer, and a second conductive feature. The first etch stop layer is disposed over the first conductive feature and the first dielectric layer. The second etch stop layer is disposed on the first etch stop layer. The second dielectric layer is disposed on the second etch stop layer. The second conductive feature includes a first conductive layer and a first barrier layer. The first conductive layer extends through the second dielectric layer, the second and the first etch stop layers to contact to the first conductive feature. The first barrier layer is sandwiched between the first conductive layer and the second dielectric layer, the first conductive layer and the second etch stop layer, and between the first conductive layer and the first etch stop layer.

Abstract: A fishing tool floating rope. The module stringing core strings a plurality of floating elements at equal intervals. Each floating element has a main body with two ends connected to a neck portion and terminal portion. The neck portion has a radial cross-sectional size less than that of the main body and terminal portion. A covering woven rope is interlaced to cover the module stringing core. The modular snap fastener has a bendable line and plurality of hollow snap fastening members connected to two ends of the bendable line. Each hollow snap fastening member has a U-shaped gap snap fastening slot configured to fit the neck portion. The floating element and modular snap fastener can be quickly assembled to form a string of the module stringing core serving as a center line of circular knitting machine to produce the fishing tool floating rope.

Abstract: A fishing tool sinking rope and modular snap fastener. A module stringing core strings a plurality of sinking elements at equal intervals. Each sinking element has a main body with two ends connected to a neck portion and terminal portion. The neck portion has a radial cross-sectional size less than that of the main body and terminal portion. A covering woven rope is interlaced to cover the module stringing core. The modular snap fastener has a bendable line and plurality of droplet-shaped hollow snap fastening members connected to two ends of the bendable line. Each hollow snap fastening member has a U-shaped gap snap fastening slot configured to fit the neck portion. The sinking element and modular snap fastener can be quickly assembled to form a string of the module stringing core serving as a center line of circular knitting machine to produce the fishing tool sinking rope.