Abstract: Provided is a high ruggedness HBT, including a first emitter cap layer and a second emitter cap layer formed between an emitter layer and an ohmic contact layer, or only an emitter cap layer is formed between them. When the first and second emitter cap layers are provided, bandgaps of the first or second emitter cap layer are changed, and the ruggedness of the HBT is improved. When an emitter cap layer is provided, an electron affinity of at least a portion of the emitter cap layer is less than or approximately equal to an electron affinity of the emitter layer, and the ruggedness of the HBT is improved.

Abstract: A lens module comprises a housing, a lens holder movably accommodated in the housing and an optical image stabilization device (OIS device). The OIS device is configured to generate a driving force according to the movement of the lens holder so as to stabilize the lens holder. The OIS device of the lens module further comprises a substrate and a plurality of driving coils received in the substrate by means of embedment so that the OIS device occupies a smaller proportion of space in the lens module and thereby to keep the lens module compact.

Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a magnetic sensed assembly, a first sensing element, and a magnetically permeable element. The movable portion is connected to an optical element which corresponds to incident light. The movable portion is movably connected to the fixed portion. The magnetic sensed assembly includes a first sensed portion having a first magnetic polar direction. The first sensing element is corresponding to the magnetic sensed assembly and is used to detect the rotation of the movable portion relative to the fixed portion, with a first rotational axis extending in a first direction that is different from an incident direction of the incident light and the first magnetic polar direction. The magnetically permeable element is corresponding to the first sensing magnet.

Abstract: Provided is a heterojunction bipolar transistor (HBT) structure with a bandgap graded hole barrier layer, including: a sub-collector layer including an N-type group III-V semiconductor on a substrate, a collector layer on the sub-collector layer and including a group III-V semiconductor, a hole barrier layer on the collector layer, a base layer on the hole barrier layer and including a P-type group III-V semiconductor, an emitter layer on the base layer and including an N-type group III-V semiconductor, an emitter cap layer on the emitter layer and including an N-type group III-V semiconductor, and an ohmic contact layer on the emitter cap layer and including an N-type group III-V semiconductor. Bandgaps of the hole barrier layer at least include a gradually increasing bandgap from the base layer towards the collector layer and a largest bandgap of the hole barrier layer is greater than bandgap of the base layer.

Abstract: A camera lens module is provided, including a holder, a circuit, and an optical lens. The holder is integrally formed in one piece and forms an accommodation space. The circuit is disposed on the holder. The optical lens is disposed in the accommodation space and in contact with an inner surface of the holder.

Abstract: A vertical comb-drive actuator comprising a support base and a movable body is described. The support base comprises first comb electrodes and a first surface wherein the first comb electrodes extend from the first surface. The movable body attached to the support base comprises second comb electrodes and a second surface wherein the second comb electrodes extend from the second surface. The movable body may rotate about a rotation axis and the first comb electrodes are interdigitated with the second comb electrodes correspondingly. The second comb electrodes extend along a first direction, the rotation axis extends along a second direction, and the first comb electrodes extend along a third direction. The distance between the first lateral face of the first comb electrode and the second surface is shorter than the second length defined as the distance between the end surface of the second comb electrode and the second surface.

Abstract: A speaker includes a circuit board, a peripheral wall, a diaphragm, at least one support member and at least one piezoelectric actuator. The peripheral wall is located on a surface of the circuit board. The diaphragm has an outer boundary attached to the peripheral wall. The diaphragm, the peripheral wall and the circuit board collectively form a chamber. The at least one support member protrudes from the surface of the circuit board and is located within the chamber. The at least one piezoelectric actuator is located on a top of the at least one support member and electrically driven to cause a vibration of the diaphragm under applied electrical bias.

Abstract: The disclosure provides a high ruggedness HBT structure, including: a sub-collector layer on a substrate and formed of an N-type III-V semiconductor material; a collector layer on the sub-collector layer and formed of a III-V semiconductor material; a base layer on the collector layer and formed of a P-type III-V semiconductor material; an emitter layer on the base layer and formed of one of N-type semiconductor materials of InGaP, InGaAsP and InAlGaP; a first emitter cap layer on the emitter layer and formed of one of undoped or N-type semiconductor materials of AlxGa1-xAs, AlxGa1-xAs1-yNy, AlxGa1-xAs1-zPz, AlxGa1-xAs1-wSbw, and InrAlxGa1-x-rAs, x having a highest value between 0.05?x?0.4, and y, z, r, w?0.1; a second emitter cap layer on the first emitter cap layer and formed of an N-type III-V semiconductor material; and an ohmic contact layer on the second emitter cap layer and formed of an N-type III-V semiconductor material.

Abstract: An optical member driving module is provided, including a moving mechanism, a base, a suspension wire, and an electromagnetic driving mechanism for driving the moving mechanism to move relative to the base. The moving mechanism includes an optical member holder, and the base has a first surface, a second surface, and an opening. The second surface faces the optical member holder and is opposite to the first surface. The opening extends from the first surface to the second surface. The suspension wire extends through the opening, and the opposite ends of the suspension wire are respectively affixed to the first surface and the moving mechanism.

Abstract: The disclosure provides an HBT structure with bandgap graded hole barrier layer, comprising: a sub-collector layer, a collector layer, a hole barrier layer, a base layer, an emitter layer, an emitter cap layer, and an ohmic contact layer, all stacked sequentially on a substrate; with the hole barrier layer formed of at least one of AlGaAs, AlGaAsN, AlGaAsP, AlGaAsSb, and InAlGaAs, Aluminum composition being less than 22%, and In, N, P, and Sb compositions being respectively less than or equal to 10%; wherein bandgaps of the hole barrier layer at least comprise a gradually increasing bandgap from the base layer towards the collector layer and the largest bandgap of the hole barrier layer is greater than bandgaps of the base layer and the collector layer.

Abstract: An air-conditioner outdoor device and an air-conditioner unit are provided. The air-conditioner outdoor device includes a casing and a heat exchanger, wherein the heat exchanger is disposed within the casing, a front plate of the casing is provided with an air outlet and two air inlets, the air outlet is located between the two air inlets, the heat exchanger is positioned closer to the front plate relative to a rear plate of the casing and faces the air outlet, and air flow entering the casing from the air inlets flows out of the casing from the air outlet after flowing through the heat exchanger. The air-conditioner unit comprises the air-conditioner outdoor device. The air-conditioner outdoor device of the present application improves the air intake and outlet manners to facilitate the installation of the air-conditioner outdoor device in a mounting hole through a wall and indoors.

Abstract: A MEMS sensor including an electrode plate, a diaphragm structure, a support structure, and a pressure relief film. The electrode plate has a conductive portion. The diaphragm structure is disposed at a side of the electrode plate with an interval, and has a sensing film. The support structure is disposed between the diaphragm structure and the electrode plate, and surrounds an electrical coupling zone and a gas flow zone. The support structure includes an inner wall and an outer wall. An outer edge of the gas flow zone is surrounded by the inner wall. An outer edge of the electrical coupling zone is surrounded by the outer wall. The pressure relief film covers the gas flow zone.

Abstract: A MEMS speaker including a base, a circuit board, a spacing layer, a vibration mold, and at least one actuator. The base has a first chamber. The circuit board is disposed on the base, and has at least one support portion and a fixing portion disposed around the support portion. The at least one support portion has a first perforation, and a plurality of second perforations are formed between the at least one support portion and the fixing portion. The spacing layer is disposed on the circuit board. A second chamber is formed between the spacing layer and the circuit board. The vibration mold is disposed on the spacing layer. The actuator is disposed on the support portion of the circuit board. The actuator has a shift part and a deformation part disposed above the first perforation of the support portion. The second perforations communicate with the first chamber and the second chamber.

Abstract: A lens driving module includes a reflecting element, a base, a frame, a holder, an optical lens, a first electromagnetic driving assembly, and a second electromagnetic driving assembly. The frame is connected to the base, and the holder holds the optical lens and movably connects to the base. The reflecting element reflects light from the outside along a light incident direction to an optical lens along a first direction, wherein the light incident direction is perpendicular to the first direction. The first and second electromagnetic driving assemblies force the holder to move relative to the base, wherein the first electromagnetic driving assembly has a first drive coil, the second electromagnetic driving assembly has a second drive coil, the first and second drive coils have elongated structures extending in a second direction and the first direction respectively, and the first direction is perpendicular to the second direction.

Abstract: A speaker includes a diaphragm and a MEMS actuator. The MEMS actuator includes a coupling member attached to the diaphragm and at least one closed cantilever ring that is surrounded around and connected to the coupling member by plural first bridge members, wherein the closed cantilever ring is configured to be electrically-biased to cause an axial movement of the coupling member and the diaphragm.

Abstract: An optical mechanism is provided. The optical mechanism includes a fixed member, a movable member, an optical element, a first sensing magnet and a first sensing element, wherein the movable member is movably connected to the fixed member, and the optical element is disposed on the movable member. The first sensing magnet corresponds to the optical element and has a first magnetic polar direction. The first sensing element corresponds to the first sensing magnet for detecting the rotation of the first sensing magnet around a first axis relative to the fixed member, wherein the first axis is perpendicular to the first magnetic polar direction.

Abstract: A speaker includes a diaphragm and a MEMS actuator. The MEMS actuator includes a coupling member attached to the diaphragm and at least one closed cantilever ring that is surrounded around and connected to the coupling member by plural first bridge members, wherein the closed cantilever ring is configured to be electrically-biased to cause an axial movement of the coupling member and the diaphragm.

Abstract: The present disclosure relates to an embedded type air conditioner outdoor unit and an air conditioner. The embedded type air conditioner outdoor unit comprises: a housing comprising an air inlet and an air outlet which are provided on the same side surface of the housing; a heat exchanger provided within the housing, for heat exchange with air introduced by the air inlet; and a cross-flow fan provided within the housing, for flowing the air introduced by the air inlet through the heat exchanger. By applying the technical solution of the present application, the air introduced by the air inlet after heat exchange by the heat exchanger is expelled via an exhaust port by using the cross-flow fan, thereby improving the problem of much noise of the embedded type air conditioner outdoor unit.

Abstract: The present disclosure relates to an embedded type air conditioner outdoor unit and an air conditioner, wherein the embedded type air conditioner outdoor unit is configured to be embedded within a wall of a building, and the embedded type air conditioner outdoor unit comprises a heat exchanger, which includes a first inlet for introducing a refrigerant and a second inlet for introducing a heat exchange medium to perform heat exchange with the refrigerant. By applying the technical solution of the present application, in which the heat exchange medium is used to perform heat exchange with the refrigerant, the embedded type air conditioner outdoor unit of the present embodiment may be used without a fan system, so that the embedded type air conditioner outdoor unit has reduced vibration and noise.