Abstract: A method of forming a patterned metal unit on an article. The method includes the steps of: providing an article that has an insulating surface; transferring a catalyst layer onto the insulating surface of the article, the catalyst layer including a catalytic material; removing a part of the catalyst layer to form a patterned catalyst layer; and forming a patterned metal layer on the patterned catalyst layer by an electroless plating technique to obtain a patterned metal unit that is constituted by the patterned catalyst layer and the patterned metal layer.

Abstract: An electric grinder with a switched reluctance motor comprises a body, a transmission assembly, a grinding wheel, and a dust-proof assembly. The body includes a first casing and a second casing. The transmission assembly includes a switched reluctance motor disposed in the first casing, a driving module disposed in the second casing, a transmission shaft connected with the switched reluctance motor, and an assemblage seat disposed in the transmission shaft. The assemblage seat includes an assemblage member for assembling the grinding wheel. The dust-proof assembly includes a dust-proof hood disposed in the first casing. Because of being driven by the switched reluctance motor, the electric grinder of the present invention adapts to the cases of phase failure, frequent start-stop operations, and phase inversion.

Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.

Abstract: A method of making an electronic device includes: providing a base unit including a metal substrate, an insulating layer disposed on the metal substrate, and a first circuit unit disposed on the insulating layer; and laser ablating the first circuit unit, the insulating layer and the metal substrate in such a manner that a hole defined by a hole-defining wall is formed to expose the metal substrate, and that an interconnecting layer is formed on the hole-defining wall during laser ablation of the metal substrate.

Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.

Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.

Abstract: A method of forming a patterned metal unit on an article. The method includes the steps of: providing an article that has an insulating surface; transferring a catalyst layer onto the insulating surface of the article, the catalyst layer including a catalytic material; removing a part of the catalyst layer to form a patterned catalyst layer; and forming a patterned metal layer on the patterned catalyst layer by an electroless plating technique to obtain a patterned metal unit that is constituted by the patterned catalyst layer and the patterned metal layer.

Abstract: A method for making a capacitive touch sensitive housing, comprises: forming a non-patterned active metal layer on a housing wall; patterning the non-patterned active metal layer on the housing wall by laser ablation such that the non-patterned active metal layer is formed into a patterned active metal layer including a plurality of plating portions separated from each other, and a plurality of non-plating portions separated from the plating portions; and forming a metal layer on the patterned active metal layer such that the metal layer has first portions formed on the plating portions of the patterned active metal layer, and second portions formed on the non-plating portions of the patterned active metal layer.

Abstract: An electric grinder with a switched reluctance motor comprises a body, a transmission assembly, a grinding wheel, and a dust-proof assembly. The body includes a first casing and a second casing. The transmission assembly includes a switched reluctance motor disposed in the first casing, a driving module disposed in the second casing, a transmission shaft connected with the switched reluctance motor, and an assemblage seat disposed in the transmission shaft. The assemblage seat includes an assemblage member for assembling the grinding wheel. The dust-proof assembly includes a dust-proof hood disposed in the first casing. Because of being driven by the switched reluctance motor, the electric grinder of the present invention adapts to the cases of phase failure, frequent start-stop operations, and phase inversion.

Abstract: An illuminating device includes an insulative housing, at least two electrodes and a light source. The insulative housing has opposite front and rear surfaces and is formed with at least two through holes. Each of the through holes is defined by a hole wall and penetrates the front and rear surfaces. Each of the electrodes includes a first conductive segment formed proximate the front surface, a second conductive segment formed proximate the rear surface, and a connecting segment formed inside a respective one of the through holes and interconnecting electrically the first and second conductive segments. The light source is disposed on the front surface and includes first and second connecting terminals each being electrically coupled to the first conductive segment of a corresponding one of the electrodes.

Abstract: A method is described for driving light emission of a light emitting device that includes first and second electrode layers, and first and second groups of light emitting diodes between the first and second electrode layers. A first electrode voltage is provided to the first and second electrode layers to conduct the first group of light emitting diodes, and then a second electrode voltage is provided to the first and second electrode layers to conduct the second group of light emitting diodes.

Abstract: A method for fabricating a conductive trace structure includes the steps: forming a first metal layer on a non-conductive substrate; removing a part of the first metal layer to expose the non-conductive substrate so as to form the first metal layer into a plating region and a non-plating region, the plating region being divided into at least two trace-forming portions and at least one bridge portion; forming a second metal layer on the plating region by electroplating the plating region using one of the trace-forming portions and the bridge portion as an electrode; and removing the bridge portion and the second metal layer formed on the bridge portion.

Abstract: An illumination device includes a circuit board, a lamp seat, primary and secondary circuits, multiple conductive wires and at least one light-emitting element. The lamp seat includes a light exiting mount region. The primary circuit is disposed on the circuit board. The secondary circuit is disposed at the light exiting mount region. The conductive wires electrically connect the primary and secondary circuits. The light-emitting element is disposed at the light exiting mount region and is electrically connected to the secondary circuit. Another illumination device is also provided, which includes a circuit board, a lamp seat, primary and secondary circuits, multiple conductive wires and at least one light-emitting element.

Abstract: Disclosed herein is a circuit-and-heat-dissipation assembly which includes: a heat sink including a heat absorbing base and a heat dissipating element, the heat absorbing base having a circuit-forming surface and an element-forming surface, the heat dissipating element protruding from the element-forming surface for dissipating heat conducted from the heat absorbing base into an ambient environment; an insulator layer formed on the circuit-forming surface; and a patterned circuit formed on the insulator layer and having an electroless plating layer which has a patterned catalyst seed layer comprising an active metal and formed on the insulator layer, and a reduced metal layer formed on the catalyst seed layer. Also disclosed herein is a method of making the circuit-and-heat-dissipation assembly.

Abstract: A method for making a capacitive touch sensitive housing, comprises: forming a non-patterned active metal layer on a housing wall; patterning the non-patterned active metal layer on the housing wall by laser ablation such that the non-patterned active metal layer is formed into a patterned active metal layer including a plurality of plating portions separated from each other, and a plurality of non-plating portions separated from the plating portions; and forming a metal layer on the patterned active metal layer such that the metal layer has first portions formed on the plating portions of the patterned active metal layer, and second portions formed on the non-plating portions of the patterned active metal layer.

Abstract: A circuit-and-heat-dissipation assembly includes: a heat sink including a heat absorbing base and a heat dissipating element, the heat absorbing base having a circuit-forming surface and an element-forming surface, the heat dissipating element protruding from the element-forming surface for dissipating heat conducted from the heat absorbing base into an ambient environment; an insulator layer formed on the circuit-forming surface; and a patterned circuit formed on the insulator layer.

Abstract: A light emitting device includes a heat sinking substrate, an electrically insulating layer, a circuit pattern layer, and at least one light emitting diode (LED) chip. The electrically insulating layer is partially formed on the heat sinking substrate so as to expose a portion of the heat sinking substrate. The circuit pattern layer is formed on the electrically insulating layer. The LED chip is electrically connected to the circuit pattern layer, and is indirectly and non-electrically mounted to the portion of the heat sinking substrate exposed from the electrically insulating layer and the circuit pattern layer. A method of making the light emitting device is also provided.

Abstract: A method for making a capacitive touch sensitive housing, comprises: forming a non-patterned active metal layer on a housing wall; patterning the non-patterned active metal layer on the housing wall by laser ablation such that the non-patterned active metal layer is formed into a patterned active metal layer including a plurality of plating portions separated from each other, and a plurality of non-plating portions separated from the plating portions; and forming a metal layer on the patterned active metal layer such that the metal layer has first portions formed on the plating portions of the patterned active metal layer, and second portions formed on the non-plating portions of the patterned active metal layer.

Abstract: A method of making an electronic device includes: providing a base unit including a metal substrate, an insulating layer disposed on the metal substrate, and a first circuit unit disposed on the insulating layer; and laser ablating the first circuit unit, the insulating layer and the metal substrate in such a manner that a hole defined by a hole-defining wall is formed to expose the metal substrate, and that an interconnecting layer is formed on the hole-defining wall during laser ablation of the metal substrate.

Abstract: A circuit substrate includes: an insulative substrate formed with a pattern of a recess, the recess being defined by a recess-defining wall that has a bottom wall surface and a surrounding wall surface extending upwardly from the bottom wall surface; a patterned metallic layer structure including at least a patterned active metal layer disposed within the recess, formed on the bottom wall surface of the recess-defining wall, and spaced apart from the surrounding wall surface of the recess-defining wall, the patterned active metal layer containing an active metal capable of initiating electroless plating; and a primary metal layer plated on the patterned metallic layer structure.