Abstract: The disclosure provides an electronic device, including a circuit board, multiple semiconductor components, a first light reflecting structure, and a second light reflecting structure. The circuit board includes a substrate, and the substrate may have a first surface and at least one side surface. The multiple semiconductor components are disposed on the first surface. The first light reflecting structure is disposed on the first surface. The second light reflecting structure is disposed on the first surface and the at least one side surface.

Abstract: A system for automatically inspecting and trimming a ceramic patch antenna includes an inspection apparatus electrically connected to a radio frequency component testing fixture. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. The ceramic patch antenna is arranged on the radio frequency component testing fixture. Then, the inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming a radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A method is configured to automatically inspect and trim a ceramic patch antenna which has a radiation metal surface. Firstly, an inspection apparatus electrically connected to a radio frequency component testing fixture is arranged. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. Then, the ceramic patch antenna is arranged on the radio frequency component testing fixture. The inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming the radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A one-way transmission module includes an external ring, an internal ring and catch units. The external ring includes a non-circular external face for engagement with an internal face of a hub or a flywheel-bearing drum. The internal ring includes a non-circular internal face for engagement with an external face of the drum or the hub. An external face of the internal ring includes planar facets each comprising two terminal portions and a middle portion located further from the internal face of the external ring than the terminal portions. Each catch unit is arranged between the internal face of the external ring and a corresponding of the planar facets of the internal ring to allow the external and internal rings to rotate together in a forward direction but not allow the external and internal rings to rotate together in a backward direction.

Abstract: A one-way transmission module includes two rings and at least one catch. The first ring is used for connection to a hub. The second ring is used for connection to a flywheel-bearing drum. The catch is arranged between the first and second rings to allow the first ring to rotate the second ring in a first direction but prevent the first ring from rotating the second ring in a second direction opposite to the first direction. The first or second ring includes a non-circular profile while the second or first ring includes a non-circular opening.

Abstract: A one-way transmission module includes two rings and at least one catch. The first ring is used for connection to a hub. The second ring is used for connection to a flywheel-bearing drum. The catch is arranged between the first and second rings to allow the first ring to rotate the second ring in a first direction but prevent the first ring from rotating the second ring in a second direction opposite to the first direction. The first or second ring includes a non-circular profile while the second or first ring includes a non-circular opening.

Abstract: A bicycle hub with protective structure includes a hub cassette and at least one protective member. The hub cassette has a driving portion and a shell portion connected to the driving portion. The shell portion has a plurality of ribs integrally formed on an outer periphery of the shell portion and extending axially. The protective member is made of harder material than that of the ribs. The protective member has a U-shaped cross section and defines a top wall and two side walls. The top wall and the two side walls define an engaging groove. Specifically, an inner angle of the engaging groove between the top wall and each of the side walls is an acute angle originally. Each of the two side walls of the protective member is flexible relative to the top wall of the protective member so as to clamp two lateral walls of the associated rib.

Abstract: A system for automatically inspecting and trimming a ceramic patch antenna includes an inspection apparatus electrically connected to a radio frequency component testing fixture. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. The ceramic patch antenna is arranged on the radio frequency component testing fixture. Then, the inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming a radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A method is configured to automatically inspect and trim a ceramic patch antenna which has a radiation metal surface. Firstly, an inspection apparatus electrically connected to a radio frequency component testing fixture is arranged. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. Then, the ceramic patch antenna is arranged on the radio frequency component testing fixture. The inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming the radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A method is configured to automatically inspect and trim a ceramic patch antenna which has a radiation metal surface. Firstly, an inspection apparatus electrically connected to a radio frequency component testing fixture is arranged. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. Then, the ceramic patch antenna is arranged on the radio frequency component testing fixture. The inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming the radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: A bicycle hub with protective structure includes a hub cassette and at least one protective member. The hub cassette has a driving portion and a shell portion connected to the driving portion. The shell portion has a plurality of ribs integrally formed on an outer periphery of the shell portion and extending axially. The protective member is made of harder material than that of the ribs. The protective member has a U-shaped cross section and defines a top wall and two side walls. The top wall and the two side walls define an engaging groove. Specifically, an inner angle of the engaging groove between the top wall and each of the side walls is an acute angle originally. Each of the two side walls of the protective member is flexible relative to the top wall of the protective member so as to clamp two lateral walls of the associated rib.

Abstract: A rear hub assembly for bicycle includes a ratchet wheel and a hub body assembled with the ratchet wheel. The hub body has a first hub plate disposed on one end thereof. The first hub plate has a plurality of protrusions formed on an outer lateral surface thereof. A dodging portion is formed between every two adjacent protrusions. A plurality of recesses are defined in an inner lateral surface of the first hub plate. A plane portion is formed between every two adjacent recesses. The first hub plate has a plurality of bores defined therein and located on each protrusion and dodging portion. A first and a second stepped level difference are respectively defined between every recess and plane portion; and between every protrusion and dodging portion. A plurality of spokes engaged with the bores respectively and buckled the first hub plate.

Abstract: A rear hub assembly for bicycle includes a ratchet wheel and a hub body assembled with the ratchet wheel. The hub body has a first hub plate disposed on one end thereof. The first hub plate has a plurality of protrusions formed on an outer lateral surface thereof. A dodging portion is formed between every two adjacent protrusions. A plurality of recesses are defined in an inner lateral surface of the first hub plate. A plane portion is formed between every two adjacent recesses. The first hub plate has a plurality of bores defined therein and located on each protrusion and dodging portion. A first and a second stepped level difference are respectively defined between every recess and plane portion; and between every protrusion and dodging portion. A plurality of spokes engaged with the bores respectively and buckled the first hub plate.

Abstract: A latch assembly of fire door lock comprises a latch base with a bottom, a latch bolt, a stopper, a resilient member and a linked unit. The latch bolt is retractably pivoted within the latch base and having a blocked surface. The stopper is swayingly pivoted within the latch base and having a blocked protrusion. The resilient member is disposed between the bottom of the latch base and the stopper and contacts against the stopper. The blocked protrusion of the stopper is capable of engaging with the blocked surface of the latch bolt. The linked unit is disposed within the latch base and pivotally connected with the latch bolt.

Abstract: A baffle device applied to a reaction room for isolating a specific matter is provided. The baffle device includes a main body, a first collecting assemble disposed around the main body and having plural first outlets and plural first collecting strips disposed on the plural first outlets for collecting the specific matter, and a second collecting assembly parallel to the first collecting assembly and having plural second outlets and plural second collecting strips disposed on the specific matter, wherein the first collecting strips and the second collecting strips are mutually arranged alternately.

Abstract: A chuck system applicable to semiconductor fabrication processes for holding a workpiece that includes a pedestal that has an upper surface for supporting a semiconductor wafer, a plurality of gas holes and grooves. The gas holes pass through the pedestal and provide channels for gas to reach the semiconductor wafer. The grooves are formed on the upper surface of the pedestal and connect between the gas holes.

Abstract: A chuck system applicable to semiconductor fabrication processes for holding a workpiece that includes a pedestal that has an upper surface for supporting a semiconductor wafer, a plurality of gas holes and grooves. The gas holes pass through the pedestal and provide channels for gas to reach the semiconductor wafer. The grooves are formed on the upper surface of the pedestal and connect between the gas holes.

Abstract: A chuck system for supporting a semiconductor wafer that includes a chuck platform for supporting the semiconductor wafer, and a lift structure movably coupled with the chuck platform to receive the semiconductor wafer that includes a lift base, and at least one lift pin removably coupled with the lift base, the lift pin having two ends with a first end removably coupled to the lift base and a second end for supporting the semiconductor wafer during lifting operation of the lift structure.