Abstract: A brush roller structure includes a foam body, a central channel, a microporous area, and through holes. The foam body comprises flow channels formed by interlaced pores, and the pores have an average pore diameter ranging from 300 ?m to 500 ?m. The central channel is arranged in the foam body and communicates with the flow channels. The microporous area is located on the surface of the foam body, and has micro pores, and the diameter of the micro pores is smaller than the average diameter of the pores in the foam body. The through holes are arranged on the outer surface of the foam body, wherein the depth of the through holes is between 50 ?m and 300 ?m, and the ratio of the total area of the through holes to the outer surface of the foam body is between 10% and 90%.

Abstract: A photonic device includes a silicon layer, wherein the silicon layer includes a waveguide portion. The photonic device further includes a cladding layer over the waveguide portion, wherein the cladding layer partially exposes a surface of the waveguide portion. The photonic device further includes a low refractive index layer in direct contact with the cladding layer, wherein the low refractive index layer comprises silicon oxide, silicon carbide, silicon oxynitride, silicon carbon oxynitride, aluminum oxide or hafnium oxide. The photonic device further includes an interconnect structure over the low refractive index layer.

Abstract: Disclosed is a central shaft of cleaning roller, including a shaft body and a hollow inner flow channel disposed in the shaft body, and a plurality of dispersed through holes fluidly-communicable with the hollow inner flow channel arranged on an outer wall of the shaft body, and a plurality of groove structures radially extending around the surface of the outer wall of the shaft body, and the groove structures have protruding end edges protruding from the surface of the outer wall. The central shaft of cleaning roller can be used to provide better adhesion for an interface between a foam material and the outer wall thereof.

Abstract: A semiconductor device includes: a substrate comprising a magnetic tunneling junction (MTJ) region and a logic region, a MTJ on the MTJ region, a top electrode on the MTJ, a connecting structure on the top electrode, and a first metal interconnection on the logic region. Preferably, the first metal interconnection includes a via conductor on the substrate and a trench conductor, in which a bottom surface of the trench conductor is lower than a bottom surface of the connecting structure.

Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, in which the MTJ includes a pinned layer on the substrate, a reference layer on the pinned layer, a barrier layer on the reference layer, and a free layer on the barrier layer. Preferably, the free layer and the barrier layer have same width and the barrier layer and the reference layer have different widths.

Abstract: An optical system affixed to an electronic apparatus is provided, including a first optical module, a second optical module, and a third optical module. The first optical module is configured to adjust the moving direction of a first light from a first moving direction to a second moving direction, wherein the first moving direction is not parallel to the second moving direction. The second optical module is configured to receive the first light moving in the second moving direction. The first light reaches the third optical module via the first optical module and the second optical module in sequence. The third optical module includes a first photoelectric converter configured to transform the first light into a first image signal.

Abstract: A brush roller and its manufacturing method and brush roller mold is provided, the brush roller is manufactured by foaming a gaseous pore filler, while solving the problem of using a solid pore filler foaming method to manufacture the brush roller. In addition, the brush roller of the present invention has a plurality of fluid channels communicating between any adjacent two, and the plurality of fluid channels respectively extend to the surface of the brush roller to form pores to improve the fluid permeability of the brush roller, and in the brush roller manufacturing method of the present invention, after the PVA emulsified solution is cured, the compressive stress under the condition of the predetermined compression ratio can be formed to meet the expected brush roller, and it can be used to brush the circuit substrate.

Abstract: A brush roller and its manufacturing method and brush roller mold is provided, the brush roller is manufactured by foaming a gaseous pore filler, while solving the problem of using a solid pore filler foaming method to manufacture the brush roller. In addition, the brush roller of the present invention has a plurality of fluid channels communicating between any adjacent two, and the plurality of fluid channels respectively extend to the surface of the brush roller to form pores to improve the fluid permeability of the brush roller, and in the brush roller manufacturing method of the present invention, after the PVA emulsified solution is cured, the compressive stress under the condition of the predetermined compression ratio can be formed to meet the expected brush roller, and it can be used to brush the circuit substrate.

Abstract: A hemostatic equipment has a pallet and an inflatable pillar. The pallet has a holder used for a patient to hold, providing foolproof effect in an operation direction to ensure that the inflatable pillar may enter a nasal cavity of a patient in a correct direction. The inflatable pillar has a head exposed with a pressing surface for pressing a bleeding site inside a nasal cavity of a patient to stop bleeding.

Abstract: A hemostatic equipment has a pallet and an inflatable pillar. The pallet has a holder used for a patient to hold, providing foolproof effect in an operation direction to ensure that the inflatable pillar may enter a nasal cavity of a patient in a correct direction. The inflatable pillar has a head exposed with a pressing surface for pressing a bleeding site inside a nasal cavity of a patient to stop bleeding.

Abstract: A medical dressing for trauma injuries is disclosed. The dressing includes a base, a porous foam layer and a protective film. The base has a muffling side. The porous foam layer is partially attached on the muffling side. The protective film covers the muffling side and the porous foam layer.