Abstract: A manufacturing method of a suspended microstructure includes the steps of providing a substrate having a surface; forming a first depositing layer over a part of the surface; forming a second depositing layer over the first depositing layer and another part of the surface wherein an adhesion between the first depositing layer and the substrate is weaker than that between the second depositing layer and the substrate; forming a hole through the second depositing layer to partially expose the surface of the substrate; and filling the hole with an etchant to remove a part of the substrate so as to form a cavity.

Abstract: An accelerometer includes a fixing unit and a movable unit. The fixing unit has a plurality of first electrode parts and a plurality of second electrode parts. The movable unit is connected with the fixing unit and includes a body having an opening, a plurality of third electrode parts and a plurality of fourth electrode parts. The third electrode parts are disposed at an outer side of the body with respect to the first electrode parts, respectively. The fourth electrode parts are disposed at the inner side of the body in the opening, and are disposed respectively with respect to the second electrode parts, respectively.

Abstract: A semiconductor piezoresistive sensor, which is electrically connected with a circuit, includes a semiconductor base, at least one piezoresistive element and a conductive layer. The semiconductor base includes a diaphragm and a base. The base is disposed adjacent to and around the diaphragm. The piezoresistive element is formed in the diaphragm and is electrically connected with the circuit. The conductive layer is electrically connected with the diaphragm.

Abstract: A method for forming a die, including forming a pre-formed mold by providing a preliminary layer on a substrate and performing a micro-machining process on the preliminary layer. Due to the micro-machining process, the method can fabricate a pre-formed mold with high precision for forming a mold. The die is fabricated by the mold for performing a molding process to obtain a workpiece with a predetermined shape.

Abstract: A cabinet includes two side plates and one or more rear plates each having a channel formed by a flap, an upper plate secured on top of the side plates and the rear plates, an upper and a lower beams secured between front portions of the side plates, and a bottom plate having two side flanges and a rear flange extended downwardly to engage into the channels of the side plates and the rear plates, and to latch and secure the bottom plate to the side plates and the rear plates. Each of the flanges of the bottom plate may further include one or more catches to engage into the flaps and to solidly secure the bottom plate to the side plates and the rear plates.

Abstract: A transmission mechanism for an optical device is provided to change an angle of an optical element. The transmission mechanism includes a first member and a second member. The first member has a slanted surface and is capable of sliding back and forth along a first direction. The second member has a first part and a second part. The first part is contacted with the slanted surface of the first member. The second part has one end connected with the first part and the other end connected to the optical element. When the first member moves, the first part contacting the slant surface moves relative to the slanted surface, thereby causing the second part to rotate so as to change the angle of the optical element.

Abstract: An optical switch includes two optical input terminals, two optical output terminals, two reflecting devices and a movable device. The optical input terminals are used to receive light rays. The two reflecting devices are positioned at fixed positions, and the movable device reflects light rays. When the position of the movable device moves, the light rays are reflected by one of the reflecting devices and are selectively output from the optical output terminals.

Abstract: An optical switch includes two optical input terminals, two optical output terminals, two reflecting devices and a movable device. The optical input terminals are used to receive light rays. The two reflecting devices are positioned at fixed positions, and the movable device reflects light rays. When the position of the movable device moves, the light rays are reflected by one of the reflecting devices and are selectively output from the optical output terminals.

Abstract: A transmission mechanism for an optical device is provided to change an angle of an optical element. The transmission mechanism includes a first member and a second member. The first member has a slanted surface and is capable of sliding back and forth along a first direction. The second member has a first part and a second part. The first part is contacted with the slanted surface of the first member. The second part has one end connected with the first part and the other end connected to the optical element. When the first member moves, the first part contacting the slant surface moves relative to the slanted surface, thereby causing the second part to rotate so as to change the angle of the optical element.

Abstract: Disclosed is a wavelength division multiplexer (WDM) and its wavelength dividing method. The WDM includes an optical input end, a first optical output end, a second optical output end, a collimator, a filter and a reflective device. The optical input end receives multi-wavelength optical signals. The filter transmits a first-wavelength optical signal of the multi-wavelength optical signals and reflects a second-wavelength optical signal of the multi-wavelength optical signals to the second optical output end. The first-wavelength optical signal is again reflected by the reflective device and transmitted through the filter toward the first optical output end. The collimator collimates the multi-wavelength optical signals, the first-wavelength optical signal and the second-wavelength optical signal.