Abstract: A photo resist layer is used to protect a dielectric layer and conductive elements embedded in the dielectric layer when patterning an etch stop layer underlying the dielectric layer. The photo resist layer may further be used to etch another dielectric layer underlying the etch stop layer, where etching the next dielectric layer exposes a contact, such as a gate contact. The bottom layer can be used to protect the conductive elements embedded in the dielectric layer from a wet etchant used to etch the etch stop layer.

Abstract: A method includes forming isolation regions extending into a semiconductor substrate. A semiconductor strip is between the isolation regions. The method further includes recessing the isolation regions so that a top portion of the semiconductor strip protrudes higher than top surfaces of the isolation regions to form a semiconductor fin, measuring a fin width of the semiconductor fin, generating an etch recipe based on the fin width, and performing a thinning process on the semiconductor fin using the etching recipe.

Abstract: A controller applied to a power converter includes a control signal generation circuit and a gate control signal generation circuit. The control signal generation circuit is used for generating a control signal when an input voltage inputted to the power converter is greater than a predetermined voltage. The gate control signal generation circuit is coupled to the control signal generation circuit. When the gate control signal generation circuit receives the control signal, the gate control signal generation circuit generates a gate control signal corresponding to a continuous conduction mode of the power converter to a power switch of the power converter, and the power switch is turned on and turned off according to the gate control signal.

Abstract: A control circuit includes an auxiliary pin for receiving an auxiliary voltage of an auxiliary winding of a power converter; a first detection unit for detecting a first time point when the auxiliary voltage begins resonance, and outputting a first detection signal according to the first time point; a second detection unit for detecting a second time point when the auxiliary voltage reaches a predetermined voltage, and outputting a second detection signal according to the second time point; a delay time controller for obtaining a delay time according to a output time difference between the first detection signal and the second detection signal, and outputting a driving signal with delay of the delay time when receiving the second detection signal; and a gate control signal generator for generating a gate control signal to a power switch of the power converter according to the driving signal of the delay time controller.

Abstract: A control circuit includes an auxiliary pin for receiving an auxiliary voltage of an auxiliary winding of a power converter; a first detection unit for detecting a first time point when the auxiliary voltage begins resonance, and outputting a first detection signal according to the first time point; a second detection unit for detecting a second time point when the auxiliary voltage reaches a predetermined voltage, and outputting a second detection signal according to the second time point; a delay time controller for obtaining a delay time according to a output time difference between the first detection signal and the second detection signal, and outputting a driving signal with delay of the delay time when receiving the second detection signal; and a gate control signal generator for generating a gate control signal to a power switch of the power converter according to the driving signal of the delay time controller.

Abstract: A voice coil motor for driving a lens group includes a housing, a first cover, a second cover, a movable member, and a plurality of magnets. The housing is a hollow and includes a top plate and four sidewalls protruding from the top plate. The movable member is movably received in a space defined by the housing and the first and second covers, and includes a barrel for receiving and being connected to the lens group, and a coil arranged around the barrel. The magnets are arranged between the housing and the movable member, stayed in contact with the sidewalls, and drive the movable member and the lens group to move in the housing when a current is supplied to the coil.

Abstract: An imaging device includes an auto-focusing actuator, an image sensor, and a transparent dust-proofing member. The auto-focusing actuator includes a housing. The housing includes a top surface and an opposite bottom surface, and defines a through hole extending from the top surface to the bottom surface. A number of positioning rods extend from the top surface and cooperatively define a fixing space. The image sensor is mounted on the bottom surface of the housing and aligned with the through hole. The transparent dust-proofing member is mounted in the fixing space and seals the through hole.

Abstract: An exemplary orthopedic adjustment device includes an orthopedic appliance, an adjustment unit module and a pressure control module. The appliance is configured for supporting a human spine. The adjustment unit module includes adjustment units. Each of the adjustment units includes a chamber, a pressure sensor and a pump. The pressure sensor and the pump are arranged in the chamber. Each of the pressure sensors is configured for detecting a pressure of each chamber corresponding thereto. Each of the pumps is configured for adjusting the pressure of each chamber corresponding thereto. The pressure control module is configured for receiving pressure signals from the pressure sensors of the chambers and providing pressure adjusting signals to the pumps to adjust the pressures of the chambers.

Abstract: A magnetic fixing device for fixing a magnetic coil to a rotor of an autowinder includes a first clip element and a second element. The first clip element is disposed on the rotor of the autowinder, and the second clip element corresponds to the first clip element for cooperatively clipping the magnetic coil by magnetic force.

Abstract: An imaging device includes an auto-focusing actuator, an image sensor, and a transparent dust-proofing member. The auto-focusing actuator includes a housing. The housing includes a top surface and an opposite bottom surface, and defines a through hole extending from the top surface to the bottom surface. A number of positioning rods extend from the top surface and cooperatively define a fixing space. The image sensor is mounted on the bottom surface of the housing and aligned with the through hole. The transparent dust-proofing member is mounted in the fixing space and seals the through hole.

Abstract: A voice coil motor includes a housing, a movable barrel, at least two magnetic elements, and a coil received in the housing. The housing defines an accommodating room, and includes a top panel, at least two peripheral panels perpendicular to the top panel, and at least two fixing plates extending in the accommodating room. The at least two magnetic elements are surrounding the movable barrel. Each magnetic element has a first magnetic pole aligned with a corresponding fixing plate and a second magnetic pole fixed on the housing. The coil is sleeved on the movable barrel and is between the fixing plates and the first magnetic poles.

Abstract: A voice coil motor for driving a lens group includes a housing, a first cover, a second cover, a movable member, and a plurality of magnets. The housing is a hollow and includes a top plate and four sidewalls protruding from the top plate. The movable member is movably received in a space defined by the housing and the first and second covers, and includes a barrel for receiving and being connected to the lens group, and a coil arranged around the barrel. The magnets are arranged between the housing and the movable member, stayed in contact with the sidewalls, and drive the movable member and the lens group to move in the housing when a current is supplied to the coil.

Abstract: A voice coil motor includes a movable receiving cylinder having protrusions formed at an end; a wire coil surrounding the receiving cylinder; a hollow fixing frame receiving the receiving cylinder and the wire coil; magnetic members fixedly received in the fixing frame, top and bottom elastic members. The top elastic member includes a peripheral portion and a resilient central portion, the central portion having a central opening and cutouts. The protrusions of the receiving cylinder are engaged in the cutouts. The peripheral portion is fixed at a lower position than the central portion, thereby forming an elastic force applied to the receiving cylinder when no current is applied to the wire coil. The bottom elastic member is connected to the receiving cylinder and the fixing frame, and is in an undeformed state when no current is applied to the wire coil.

Abstract: A voice coil motor includes a movable receiving cylinder having protrusions formed at an end; a wire coil surrounding the receiving cylinder; a hollow fixing frame receiving the receiving cylinder and the wire coil; magnetic members fixedly received in the fixing frame, top and bottom elastic members. The top elastic member includes a peripheral portion and a resilient central portion, the central portion having a central opening and cutouts. The protrusions of the receiving cylinder are engaged in the cutouts. The peripheral portion is fixed at a lower position than the central portion, thereby forming an elastic force applied to the receiving cylinder when no current is applied to the wire coil. The bottom elastic member is connected to the receiving cylinder and the fixing frame, and is in an undeformed state when no current is applied to the wire coil.

Abstract: A voice coil motor includes a movable member, a base, and a first elastic member. The movable member comprises a barrel, and a plurality of fixing posts protrudes from the bottom of the barrel. The base defines a through hole, a plurality of recessed portions, and a plurality of concavities. The axis of through hole is coaxial with the barrel. The recessed portions surround the aperture. Each of the recessed portions is arranged between two concavities. The depth of the recessed portion is less than the height of the fixing post, and the depth of the concavity is larger than that of the recessed portion. The elastic member comprises an elastic portion, which defines a first fixing hole. The fixing post extends through the first fixing hole and is received in the recessed portion.

Abstract: Power supplies and related methods capable of reducing output voltage ripple. A power supply provides an output voltage to a load and controls the output voltage to approach a target voltage. The output voltage is compared with the target voltage to generate a control signal, which controls an output current of the power supply. When the control signal causes an increase in the output current, the target voltage is reduced.

Abstract: A coil rack fixing device for fixing a coil rack to a rotor of a winding machine, includes a first member and a second member. The first member is configured for mounting on the rotor. The first member includes a support shaft coaxial to the rotor. The support shaft has a magnetic attracting portion positioned on a free end thereof. The second member includes a body and a magnet. The body defines a through hole thereof. The through hole receives the support shaft. The magnet is received in the through hole and capable of moving along the through hole relative to the magnetic attracting portion.

Abstract: An exemplary orthopedic adjustment device includes an orthopedic appliance, an adjustment unit module and a pressure control module. The appliance is configured for supporting a human spine. The adjustment unit module includes adjustment units. Each of the adjustment units includes a chamber, a pressure sensor and a pump. The pressure sensor and the pump are arranged in the chamber. Each of the pressure sensors is configured for detecting a pressure of each chamber corresponding thereto. Each of the pumps is configured for adjusting the pressure of each chamber corresponding thereto. The pressure control module is configured for receiving pressure signals from the pressure sensors of the chambers and providing pressure adjusting signals to the pumps to adjust the pressures of the chambers.

Abstract: A game controller glove includes a main body, a MEMS, and a power supply. The main body includes five finger portions for receiving fingers of a game player's hand. The MEMS includes finger-movement sensors, MEMS sensors, and a processor. The finger-movement sensors are positioned at the finger portions and used for detecting the movements of the fingers. The MEMS sensors are connected to the corresponding finger-movement sensors and used for sensing pressures applied by the corresponding finger-movement sensors, and converting the pressure into electrical signals. The processor is electrically connected to the MEMS sensors and used for obtaining the electrical signals and then restores the electrical signals back to pressure values. The power supply is used for supplying electrical power to the processor.

Abstract: A coil rack fixing device for fixing a coil rack to a rotor of a winding machine, includes a first member and a second member. The first member is configured for mounting on the rotor. The first member includes a support shaft coaxial to the rotor. The support shaft has a magnetic attracting portion positioned on a free end thereof. The second member includes a body and a magnet. The body defines a through hole thereof. The through hole receives the support shaft. The magnet is received in the through hole and capable of moving along the through hole relative to the magnetic attracting portion.