Abstract: The disclosure provides an electronic device and a manufacturing method thereof. The electronic device includes a package structure, a circuit structure, a bonding structure and an external element. The circuit structure is disposed on the package structure and is electrically connected to the package structure. The circuit structure has a recess. The bonding structure includes a first bonding pad and a second bonding pad. The second bonding pad is disposed in the recess, and the second bonding pad is disposed on the first bonding pad. The bonding structure is disposed between the circuit structure and the external element. The external element is electrically connected to the circuit structure through the bonding structure. A width of the first bonding pad is smaller than a width of the second bonding pad.

Abstract: An exemplary embodiment of the invention includes methods of configuring a memory block including: providing a memory block, the memory block having a set of addressable memory locations; configuring the memory block to include a plurality of pages corresponding to the set of addressable memory locations, the plurality of pages each having a page size; and allocating at least one of the plurality of pages for storing at least one per-page data structure, the at least one per-page data structure co-located with the memory block. In some embodiments, methods further include: defining the set of addressable memory locations; and computing a number of pages needed to store the at least one per-page data structure. Advantages of the invention include flexible memory allocation. The invention supports a dynamic update of the memory per-page data structures so that the operating system can take full advantage of the available memory.

Abstract: A removable game tray for baby walkers which includes a main tray including an upper cover and a lower cover which is fixedly mounted on the upper cover, the lower cover having two tongues at one side thereof and two rails at a bottom thereof, a handle slidably engaged with the rails and having a top protruded out of the lower cover when pushed into the lower cover, and a receptacle having a recess configured to receive the main tray, the recess having an opening adapted to engage with the top of the handle, the recess being cut by two grooves to form two lugs each having a hole, the hole being adapted to receive a respective one of the tongues, whereby the main tray can be easily removed from the receptacle by pressing the lugs.

Abstract: A removable game tray for baby walkers which includes a main tray including an upper cover and a lower cover which is fixedly mounted on the upper cover, the lower cover having two tongues at one side thereof and two rails at a bottom thereof, a handle slidably engaged with the rails and having a top protruded out of the lower cover when pushed into the lower cover, and a receptacle having a recess configured to receive the main tray, the recess having an opening adapted to engage with the top of the handle, the recess being cut by two grooves to form two lugs each having a hole, the hole being adapted to receive a respective one of the tongues, whereby the main tray can be easily removed from the receptacle by pressing the lugs.

Abstract: A leg support for a child tricycle having a cycle frame is disclosed. The leg support is characterized in that the cycle frame is provided with two spaced apart supporting board and the end edge of the supporting board is provided with a blocking board; and the top end of the leg support is pivotally mounted between the two supporting boards, and the length of a pivotal end of the leg support is adjustable such that the minimum length of the leg support allows the swinging of the leg support, and at the maximum length of the leg support the pivotal end urges the side edge or the bottom edge of the blocking board, providing the positioning of the leg support.

Abstract: A front wheel for a vehicle for children provides a wheel frame having a slot through which a crank extends. A locking plate is securely mounted to the crank to turn therewith. A switch member is attached to the wheel frame and includes a guide groove. When an end of a pin is in an end of the guide groove of the switch member, the other end of the pin is in a locking position engaged with a positioning notch of the locking plate, thereby allowing joint rotation of the wheel frame and the crank. When the end of the pin is in a second end of the guide groove of the switch member, the other end of the pin is in an unlocking position disengaged from the positioning notch of the locking plate, thereby allowing independent rotations of the crank and the wheel frame.

Abstract: A fastener comprises a body having a first end for engaging with a first object. The body further includes a second end for engaging with a second object having an engaging hole. The second end of the body includes at least one resilient leg extending toward the first end of the body and spaced from the body. The resilient leg is pressable to allow the second end of the body to pass through the engaging hole of the second object. The second end of the body has a maximum width greater than a diameter of the engaging hole of the second object when the resilient leg is not pressed, thereby preventing disengagement of the second object from the second end of the body after assembly.

Abstract: A vehicle for children comprises a frame, a driving member rotatably mounted to a rear end of the frame, a rear steering rod, a driven member, and a belt. The frame comprises a head tube on a front end thereof. A handlebar stem extends through the head tube and is pivotable relative to the head tube. A handlebar is attached to an upper end of the handlebar stem to turn therewith. The rear steering rod includes a lower end attached to the driving member to turn therewith and an upper end for manual operation. The driven member is securely attached to the handlebar stem to turn therewith. The belt is mounted around the driving member and the driven member such that the driven member is turned when the driving member is turned as a result of turning of the rear steering bar.

Abstract: A front wheel for a vehicle for children comprises a wheel frame having a slot through which a crank extends. A locking plate is securely mounted to the crank to turn therewith. A switch member is attached to the wheel frame and includes a guide groove. When an end of a pin is in an end of the guide groove of the switch member, the other end of the pin is in a locking position engaged with a positioning notch of the locking plate, thereby allowing joint rotation of the wheel frame and the crank. When the end of the pin is in a second end of the guide groove of the switch member, the other end of the pin is in an unlocking position disengaged from the positioning notch of the locking plate, thereby allowing independent rotations of the crank and the wheel frame.

Abstract: A vehicle for children comprises a frame, a driving member rotatably mounted to a rear end of the frame, a rear steering rod, a driven member, and a belt. The frame comprises a head tube on a front end thereof. A handlebar stem extends through the head tube and is pivotable relative to the head tube. A handlebar is attached to an upper end of the handlebar stem to turn therewith. The rear steering rod includes a lower end attached to the driving member to turn therewith and an upper end for manual operation. The driven member is securely attached to the handlebar stem to turn therewith. The belt is mounted around the driving member and the driven member such that the driven member is turned when the driving member is turned as a result of turning of the rear steering bar.

Abstract: A leg support for a child tricycle having a cycle frame is disclosed. The leg support is characterized in that the cycle frame is provided with two spaced apart supporting board and the end edge of the supporting board is provided with a blocking board; and the top end of the leg support is pivotally mounted between the two supporting boards, and the length of a pivotal end of the leg support is adjustable such that the minimum length of the leg support allows the swinging of the leg support, and at the maximum length of the leg support the pivotal end urges the side edge or the bottom edge of the blocking board, providing the positioning of the leg support.