Abstract: A method of manufacturing plastic metallized 3D circuit includes the steps of providing a 3D plastic main body; performing a surface pretreatment on the plastic main body; performing a metallization process on the plastic main body to deposit a thin metal film thereon; performing a photoresist coating process to form a photoresist protective layer on the thin metal film; performing an exposure and development process on the photoresist protective layer to form a patterned photoresist protective layer; performing an etching process on the exposed thin metal film to form a patterned metal circuit layer; stripping the patterned photoresist protective layer; and performing a surface treatment on the patterned metal circuit layer to form a metal protective layer. With the method, a 3D circuit pattern can be directly formed on a 3D plastic main body without providing additional circuit carrier to thereby meet the requirement for miniaturized and compact electronic devices.

Abstract: A pin for a semiconductor device is disclosed. A connection head includes a plurality of curved protruded ribs and a plurality of recessed grooves. The curved protruded ribs and recessed grooves are alternately arranged. The curved protruded ribs radially extend from the center of the connection head. A pin stem is connected to the connection head.

Abstract: A method of manufacturing 3D circuit includes the steps of providing a main body of a 3D structure; degreasing and roughening surfaces of the main body; performing a metallization process on the main body to deposit a thin metal film thereon; performing a photoresist coating process to form a photoresist protective layer on the thin metal film; performing an exposure and development process on the photoresist protective layer to form a patterned photoresist protective layer; performing an etching process to form a patterned circuit layer at areas covered by the patterned photoresist protective layer; stripping the patterned photoresist protective layer off the patterned circuit layer; and performing a chemical plating process on the patterned circuit layer to form a thickness-increased circuit layer. With the method, a 3D circuit can be formed on a 3D structure without providing additional circuit carrier to meet the requirement for miniaturized and compact electronic devices.

Abstract: A mechanism is provided for managing the referencing of at least two versions of a function. A first version is a single threaded version that does not ensure multi-thread safety. A second version is a multi threaded version that does ensure multi-thread safety. The mechanism determines whether a set of executable code (e.g. a program) is currently executing in single-threaded mode or multi-threaded mode. If the executable code is executing in single-threaded mode, then the mechanism causes the executable code to reference the first version of the function. If the executable code is executing in multi-threaded mode, then the mechanism causes the executable code to reference the second version of the function. By doing so, the mechanism ensures that the additional overhead of ensuring multi-thread safety is incurred only when it is needed. In this manner, the mechanism makes execution of the function more optimal.

Abstract: The feed point adjustable planar antenna includes a ground component, a main radiation plane, a branch line extended from the main radiation plane, and a ground pin electrically connecting the radiation component with the ground component. If it needs to fine tune the frequency band interval after the design of the antenna is completed, the feed position of the coaxial cable to the branch line can be changed to achieve the fine tuning without cutting the antenna. The ground pin extends from a side edge of the ground component and the branch line is adjacent to the ground component. The branch line and the ground component form a larger coupling range than the conventional planar antenna does. In the mean time, the coaxial cable also has a larger feed range than the conventional planar antenna does.

Abstract: The feed point adjustable planar antenna includes a ground component, a main radiation plane, a branch line extended from the main radiation plane, and a ground pin electrically connecting the radiation component with the ground component. If it needs to fine tune the frequency band interval after the design of the antenna is completed, the feed position of the coaxial cable to the branch line can be changed to achieve the fine tuning without cutting the antenna. The ground pin extends from a side edge of the ground component and the branch line is adjacent to the ground component. The branch line and the ground component form a larger coupling range than the conventional planar antenna does. In the mean time, the coaxial cable also has a larger feed range than the conventional planar antenna does.

Abstract: A chip antenna has a dielectric material layer, a first meandered strip, a second meandered strip and several bended strips. The first meandered strip is meandered in one direction and disposed on the dielectric material layer. The second meandered strip is meandered in another direction and disposed on the dielectric material layer. The first meandered strip is connected to the second meandered strip. The bended strips are connected to the turns of the meandered strips.

Abstract: A chip antenna apparatus for receiving global positioning system signals, includes a L-shaped ground area and an omni-directional chip antenna. The L-shaped ground area is disposed on a circuit board. The omni-directional chip antenna is disposed in a gap of the L-shaped ground area on the circuit board and electrically connected to the L-shaped ground area.

Abstract: A mechanism is provided for managing the referencing of at least two versions of a function. A first version is a single threaded version that does not ensure multi-thread safety. A second version is a multi threaded version that does ensure multi-thread safety. The mechanism determines whether a set of executable code (e.g. a program) is currently executing in single-threaded mode or multi-threaded mode. If the executable code is executing in single-threaded mode, then the mechanism causes the executable code to reference the first version of the function. If the executable code is executing in multi-threaded mode, then the mechanism causes the executable code to reference the second version of the function. By doing so, the mechanism ensures that the additional overhead of ensuring multi-thread safety is incurred only when it is needed. In this manner, the mechanism makes execution of the function more optimal.

Abstract: A multi-branch conductive strip planar antenna is disclosed herein, which is basically a planar antenna with a radiator and a ground plane fed by a transmission line. Specifically, the radiator is composed of a plurality of taper-comb-shaped multi-branch conductive strips. Thus, a broadband antenna can be achieved through a plurality of coupled circuits and a plurality of current paths in the taper-comb-shaped conductive strips.

Abstract: A connection apparatus for a chip antenna includes a connection base and at least one chip slot. The connection base is disposed on a circuit board and connects to the electronic components of the circuit board via a connection wire. The chip slot is disposed on the connection base for inserting the chip antenna. Thus, the chip antenna is connected to the electronic components of the circuit board via the connection wire.

Abstract: A chip antenna apparatus for receiving global positioning system signals, includes a L-shaped ground area and an omni-directional chip antenna. The L-shaped ground area is disposed on a circuit board. The omni-directional chip antenna is disposed in a gap of the L-shaped ground area on the circuit board and electrically connected to the L-shaped ground area.

Abstract: A device shell for use in a wireless communication device, is disclosed to have a shell body injection-molded from a compound material in a predetermined shape, and an antenna circuit formed in the shell body and electrically connectable to a circuit board in a wireless communication device in which the device shell is used.

Abstract: A connection apparatus for a chip antenna includes a connection base and at least one chip slot. The connection base is disposed on a circuit board and connects to the electronic components of the circuit board via a connection wire. The chip slot is disposed on the connection base for inserting the chip antenna. Thus, the chip antenna is connected to the electronic components of the circuit board via the connection wire.

Abstract: This disclosure relates to a broadband antenna apparatus having single or multiple winding strips. The broadband antenna apparatus has a dielectric material layer, and the single or multiple winding strips surround one another over the dielectric material layer. An antenna feed is located on the single or multiple winding strips, and ground terminals can be added.

Abstract: A chip antenna has a dielectric material layer, a first meandered strip, a second meandered strip and several bended strips. The first meandered strip is meandered in one direction and disposed on the dielectric material layer. The second meandered strip is meandered in another direction and disposed on the dielectric material layer. The first meandered strip is connected to the second meandered strip. The bended strips are connected to the turns of the meandered strips.

Abstract: An antenna apparatus has a substrate, a plurality of meandered conductive strips and a feeding conductive strip disposed on the substrate. The meandered conductive strips have different sizes, and are spaced at intervals and arranged in parallel according to their sizes in order. The feeding conductive strip is electrically connected to the meandered conductive strips. Therefore, a radiating structure having multiple meandered conductive strips can generate electromagnetic mutual coupling, thus obtaining the resonance of multiple and wide-frequency bands.