Abstract: The present disclosure provides a method of manufacturing a semiconductor device. The method includes: forming a transistor region in a substrate; forming a gate dielectric layer over the transistor region; forming a diffusion-blocking layer over the gate dielectric layer; forming a first portion of a work function layer over the diffusion-blocking layer; forming a second portion of the work function layer over the first portion of the work function layer; forming a plurality of barrier elements on or under a top surface of the second portion of the work function layer; and forming a gate electrode over the work function layer, wherein the plurality of barrier elements block oxygen from diffusing into the work function layer during the formation of the gate electrode.

Abstract: A tube bender is provided. A rotatable member is pivoted to a base, defines an inner space and has a rack portion extending around the pivot portion within the inner space, a first arched groove archedly extending around the pivot portion and a holding portion having a holding recess for a tube. An abutting assembly has an arm portion connected with the base and an abutting chunk assembled to the arm portion. A gear assembly includes a driving assembly for being driven by a driving tool and a rotating assembly which is pivoted to the base and rotatably connected with the driving assembly. The driving assembly is pivoted to the arm portion and non-coaxially arranged with the rotating assembly, and the rotating assembly has a first toothed portion meshed with the rack portion and a driven portion meshed with the driving assembly.

Abstract: A tube bender is provided. A rotatable member is pivoted to a base, defines an inner space and has a rack portion extending around the pivot portion within the inner space, a first arched groove archedly extending around the pivot portion and a holding portion having a holding recess for a tube. An abutting assembly has an arm portion connected with the base and an abutting chunk assembled to the arm portion. A gear assembly includes a driving assembly for being driven by a driving tool and a rotating assembly which is pivoted to the base and rotatably connected with the driving assembly. The driving assembly is pivoted to the arm portion and non-coaxially arranged with the rotating assembly, and the rotating assembly has a first toothed portion meshed with the rack portion and a driven portion meshed with the driving assembly.

Abstract: A flaring device for flaring a hollow malleable tubular member is provided. A hydraulically powered assembly includes a main body having a cylinder, a lever and a piston member which is received in the cylinder. The main body has an axis and opposing first end and second end. The lever is pivoted on the first end of the main body and operable to drive the piston member to move along the axis. One end of the piston member is formed with a conical expander. The die set is disposed at the second end of the main body and has a plurality of die elements arranged around the axis. The conical expander of the piston member is actuated to move axially and outwardly so as to radially drive the die elements to flare the hollow malleable tubular member.

Abstract: A power connector includes an insulative housing, at least a pair of power contacts assembled to the at least one contact-receiving passage. The pair of power contacts are arranged oppositely along an up-to-down direction and cooperating with each other. Each of the at least a pair of power contacts includes a cable termination portion, a contacting portion and an intermediate portion connecting the cable termination portion and the contacting portion. One lateral edge of the intermediate portion is a first latching portion, and the other lateral edge of the intermediate portion is a second latching portion. Thus, when the pair of power contacts are assembled together, the first latching portion of one power contact cooperates with the second latching portion of the other power contact, while the second latching portion of the one power contacts cooperates with the first latching portion of the other power contact to form a hollow frame therebetween along an up-to-down direction.

Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing and a pair of latch members located at lateral sides of the insulative housing. The insulative housing includes a mating portion, a mounting portion and a number of passageways extending therethrough to receive the contacts. Each latch member includes a pivot portion connected to corresponding lateral side of the insulative housing, a locking arm extending forwardly from the pivot portion and a driving portion extending backwardly from the pivot portion. The locking arms are capable of pivoting outwardly along a horizontal direction to a release status under condition that the driving portions are inwardly pressed. With the dual latch members, the electrical connector can be much reliable in locking with a mateable connector.

Abstract: An electrical connector includes an insulative housing, at least one conductive contact, a limiting element and a fastening element. The insulative housing defines an upper first receiving passage and a lower second receiving passage spaced from the first receiving passage along an up-to-down direction by a horizontal first partition wall, and a first restriction section and a second restriction section. The at least one conductive contact is received in the first and second receiving passages, and partially received in the first restriction section and the second restriction section. The limiting element is received in the second restriction section. The fastening element is received in the second receiving passage and located below the limiting element to cooperate with the limiting element to fasten the at least one conductive contact with the insulative housing. The fastening element defines at least one contact-restriction section in at least on sidewall thereof.

Abstract: A tube bender is provided. The rotatable member is pivoted to a pivot portion of a base and defines an inner space, and the rotatable member has a gear portion, a first arched groove and a holding portion. The gear portion archedly extends around the pivot portion. The first arched groove archedly extends around the pivot portion on an outer circumferential surface of the rotatable member, and the holding portion has a holding recess. The abutting assembly includes an abutting chunk assembled to the base and an arm member connected with the abutting chunk. A gear assembly includes a driving portion pivoted to the arm member and a gear connected and synchronously-movable with the driving portion. The gear engaged with the gear portion in the inner space.

Abstract: A power connector in accordance with the present invention includes an insulative housing including a main body and at least two mating ports, a number of power contacts received in the insulative housing. At least one mating port includes an anti-mismating portion protruding outwardly from an outer surface thereof and extending along a mating direction of the power connector.

Abstract: An electrical connector includes an insulative housing, at least one conductive contact, a limiting element and a fastening element. The insulative housing defines an upper first receiving passage and a lower second receiving passage spaced from the first receiving passage along an up-to-down direction by a horizontal first partition wall, and a first restriction section and a second restriction section. The at least one conductive contact is received in the first and second receiving passages, and partially received in the first restriction section and the second restriction section. The limiting element is received in the second restriction section. The fastening element is received in the second receiving passage and located below the limiting element to cooperate with the limiting element to fasten the at least one conductive contact with the insulative housing. The fastening element defines at least one contact-restriction section in at least on sidewall thereof.

Abstract: A flaring device for flaring a hollow malleable tubular member is provided. A hydraulically powered assembly includes a main body having a cylinder, a lever and a piston member which is received in the cylinder. The main body has an axis and opposing first end and second end. The lever is pivoted on the first end of the main body and operable to drive the piston member to move along the axis. One end of the piston member is formed with a conical expander. The die set is disposed at the second end of the main body and has a plurality of die elements arranged around the axis. The conical expander of the piston member is actuated to move axially and outwardly so as to radially drive the die elements to flare the hollow malleable tubular member.

Abstract: An electrical connector includes an insulative housing, a number of contacts retained in the insulative housing and a pair of latch members located at lateral sides of the insulative housing. The insulative housing includes a mating portion, a mounting portion and a number of passageways extending therethrough to receive the contacts. Each latch member includes a pivot portion connected to corresponding lateral side of the insulative housing, a locking arm extending forwardly from the pivot portion and a driving portion extending backwardly from the pivot portion. The locking arms are capable of pivoting outwardly along a horizontal direction to a release status under condition that the driving portions are inwardly pressed. With the dual latch members, the electrical connector can be much reliable in locking with a mateable connector.

Abstract: A power connector includes an insulative housing, at least a pair of power contacts assembled to the at least one contact-receiving passage. The pair of power contacts are arranged oppositely along an up-to-down direction and cooperating with each other. Each of the at least a pair of power contacts includes a cable termination portion, a contacting portion and an intermediate portion connecting the cable termination portion and the contacting portion. One lateral edge of the intermediate portion is a first latching portion, and the other lateral edge of the intermediate portion is a second latching portion. Thus, when the pair of power contacts are assembled together, the first latching portion of one power contact cooperates with the second latching portion of the other power contact, while the second latching portion of the one power contacts cooperates with the first latching portion of the other power contact to form a hollow frame therebetween along an up-to-down direction.

Abstract: A power connector in accordance with the present invention includes an insulative housing including a main body and at least two mating ports, a number of power contacts received in the insulative housing. At least one mating port includes an anti-mismating portion protruding outwardly from an outer surface thereof and extending along a mating direction of the power connector.

Abstract: A USB flash drive with an improved structure includes a housing formed internally with a groove, and a moving case that is movable inside the groove. The groove has a top surface formed with an opening for a movable locking button of the moving case to move therein. In addition, the opening of the housing has two lateral edges whose undersides are concavely provided with plural pairs of engaging recesses to be engaged with projections of the movable locking button.

Abstract: An improved USB connector extension/retraction device for a USB flash drive includes a moving cover for coupling with a flash memory unit (which has a USB connector), a resilient bar element, and two springs. The moving cover is assembled with a railed housing to form the USB connector extension/retraction device. The moving cover can be pushed forward and secured in position so that the USB connector of the flash memory unit is extended out for use. When not in use, the USB connector is retracted automatically so as to be hidden for protection. In addition, the USB connector extension/retraction device allows the USB flash drive to have a reduced volume.