A metal wire includes tungsten or a tungsten alloy. The metal wire has a diameter of at most 13 ?m, a tensile strength of at least 4.8 GPa, and a natural hanging length per 1000 mm of at least 800 mm.

A method for forming a semiconductor device is provided. The method includes providing a substrate, placing a first stencil having a first openwork pattern on the substrate, applying a first material onto the substrate through the first stencil, and removing the first stencil from the substrate. The first material includes a transparent material. The method also includes placing a second stencil having a second openwork pattern on the substrate, applying a second material onto the substrate through the second stencil, and removing the second stencil from the substrate. The second material includes a light-shielding material, and the second openwork pattern is different from the first openwork pattern.

A method for forming a semiconductor device is provided. The method includes providing a substrate, placing a first stencil having a first openwork pattern on the substrate, applying a first material onto the substrate through the first stencil, and removing the first stencil from the substrate. The first material includes a transparent material. The method also includes placing a second stencil having a second openwork pattern on the substrate, applying a second material onto the substrate through the second stencil, and removing the second stencil from the substrate. The second material includes a light-shielding material, and the second openwork pattern is different from the first openwork pattern.

A printing apparatus includes a screen with an opening through which ink passes. A resin material is formed with a recessed portion and a projection relatively projecting from the recessed portion. When a top surface of a projection is printed with ink, an inner edge of the opening is displaced toward the recessed portion. The height of an ink droop formed at the inner edge of the opening is set to be smaller than a depth of the recessed portion at a position facing the ink droop.

Embodiments of the invention include a breast nipple areola complex tattoo stencil comprising first, second and third stencil sections. The first stencil section defines an areola area. The second stencil section defines a nipple area and tubercle areas. One or more registration elements on the first and/or second stencil sections enable registration of the second stencil section to the first stencil section. The third stencil section defines one or both of a nipple shading area and a nipple highlight area. One or more registration elements on the third and/or second stencil sections enable registration of the third stencil section to the second stencil section.

A structure of a screen printing plate comprises a supporting frame, a composite screen, a first and a second adhesive body, and an adhesive tape. The composite screen is connected to the supporting frame and comprises a first and a second screen. The first screen is disposed along the supporting frame and encloses a central region. The second screen covers the central region and is in partial overlapped with and connected to the first screen, wherein the screens are made from different materials. The first adhesive body is disposed between the first and the second screens and connects them. The second adhesive body is disposed on one side of the composite screen and covers the first adhesive body. The adhesive tape is opposite to the second adhesive body and is disposed on the other side of the composite screen. A manufacturing method of a screen printing plate is also provided.

A method of manufacturing a print head includes forming a jet stack, the jet stack including a nozzle plate having an array of nozzles, attaching an array of transducers to the jet stack, wherein the array of transducers has a transducer corresponding to each nozzle, adhering an adhesive layer to the array of transducers, forming opening in the adhesive layer, each opening adjacent a transducer in the array of transducers, partially removing the adhesive layer in regions adjacent the openings, such that the adhesive layer is less thick in the regions adjacent the openings than in other regions, and filling the openings with a conductive material, such that when the conductive material is applied, any air in the openings moves into the regions of the adhesive layer with less thickness adjacent the openings.

A method of manufacturing a print head includes forming a jet stack, the jet stack including a nozzle plate having an array of nozzles, attaching an array of transducers to the jet stack, wherein the array of transducers has a transducer corresponding to each nozzle, adhering an adhesive layer to the array of transducers, forming opening in the adhesive layer, each opening adjacent a transducer in the array of transducers, partially removing the adhesive layer in regions adjacent the openings, such that the adhesive layer is less thick in the regions adjacent the openings than in other regions, and filling the openings with a conductive material, such that when the conductive material is applied, any air in the openings moves into the regions of the adhesive layer with less thickness adjacent the openings.

A stencil for printing a pattern of deposits on a substrate, wherein the stencil comprises an electroformed metal sheet which has a first layer which includes an apertured region through which a printing medium is applied in a printing operation, and a second layer which overlies a substrate to be printed and includes a plurality of apertures, wherein the apertures of the second layer extend across and beyond the apertured region in the first layer, whereby the second layer includes a plurality of through apertures in registration with the apertured region of the first layer, each having a pattern corresponding to that to be printed on the substrate, and a plurality of blind apertures disposed adjacent and outwardly of the apertured region in the first layer.

A printing screen for printing deposits of a print medium onto workpieces, the printing screen comprising a sheet in which a pattern of printing apertures are formed to allow for printing of a pattern of deposits onto a workpiece, and a waveguide which can be driven to induce an ultrasonic vibration in the sheet, wherein the waveguide comprises an elongate body at a surface of the sheet which at least partially surrounds the pattern of printing apertures.