Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a fin active region formed on a semiconductor substrate and spanning between a first sidewall of a first shallow trench isolation (STI) feature and a second sidewall of a second STI feature; an anti-punch through (APT) feature of a first type conductivity; and a channel material layer of the first type conductivity, disposed on the APT feature and having a second doping concentration less than the first doping concentration. The APT feature is formed on the fin active region, spans between the first sidewall and the second sidewall, and has a first doping concentration.

Abstract: A diameter-expanding tool head and a diameter-expanding method thereof, the tool head comprises an expanding section forming convex portions and concave portions disposed at intervals on an outer peripheral surface, any one of the concave portions is formed between any two of the convex portions, each of the convex portions has a convex peak, the convex peak is a part farthest from an axis, each distance is equal, the convex peaks are connected to form a diameter-expanding surface spanning each of the concave portions. The expanding section is rotatably inserted into a channel of a body to be expanded, and is in discontinuous contact with the channel through the convex and concave portions, a diameter of at least a part of the body to be expanded is expanded to form a diameter-expanded channel, and an inner wall surface of the diameter-expanded channel is flush with the diameter-expanding surface.

Abstract: The present disclosure provides an impact wrench for detaching bolts or nuts together with socket. The impact wrench includes a pole, a driving member, an elastic member, and a connecting portion. The driving member is slidably and rotatably disposed to one end of the pole. The other end of the pole has a sleeving portion which may be a rectangular hole. The elastic member presses against the driving member and the pole to make the driving member continuously moving away from the sleeving portion. The connecting portion is configured on the pole or on the driving member. The connecting portion is adapted for a handle to be assembled thereon. Therefore, power tool may be attached to the sleeving portion to provide rotational impulse to detach bolts or nuts. User may hole the impact wrench by a handle which is assembled on the connecting portion, achieving convenience and safety operation condition.

Abstract: The present disclosure provides an impact wrench for detaching bolts or nuts together with socket. The impact wrench includes a pole, a driving member, an elastic member, and a connecting portion. The driving member is slidably and rotatably disposed to one end of the pole. The other end of the pole has a sleeving portion which may be a rectangular hole. The elastic member presses against the driving member and the pole to make the driving member continuously moving away from the sleeving portion. The connecting portion is configured on the pole or on the driving member. The connecting portion is adapted for a handle to be assembled thereon. Therefore, power tool may be attached to the sleeving portion to provide rotational impulse to detach bolts or nuts. User may hole the impact wrench by a handle which is assembled on the connecting portion, achieving convenience and safety operation condition.

Abstract: A universal joint comprises a tool set including a driving portion secured on one end thereof and a spherical member fixed on another end thereof; a base including a receiving chamber disposed on one end thereof and a circular groove mounted on another end thereof to receive the spherical member of the tool set, between the groove and the spherical member of the tool set being defined a stooping structure, the stopping structure including two opposite sliding slots and two locking tabs relative to the sliding slots, and a locking structure disposed on the base and including two annular recesses arranged on an outer periphery of the base and communicating with the groove to receive two engaging members respectively, on an outer periphery of the base being fitted a pressing member in which an abutting surface formed therein.

Abstract: An universal joint capable of replacing various tool sets contains a tool set having a driving portion disposed on one end thereof and a spherical knob fixed on another end thereof, and the spherical knob includes two retaining segments disposed on two sides thereof respectively; a holder having a fitting portion disposed on one end thereof and a chamber fixed on another end thereof to receive the spherical knob, and between the holder and the tool set being defined a locking structure, wherein the locking structure includes a hole fixed on the retaining segment of the tool set to communicate with the chamber. The hole includes a lock boss placed therein, and the holder also includes a sleeve member fitted thereon. The sleeve member includes an abutting face for pushing the lock boss to extend out of the chamber of the holder to engage with the retaining segments.

Abstract: A universal joint comprises a tool set including a driving portion secured on one end thereof and a spherical member fixed on another end thereof; a base including a receiving chamber disposed on one end thereof and a circular groove mounted on another end thereof to receive the spherical member of the tool set, between the groove and the spherical member of the tool set being defined a stooping structure, the stopping structure including two opposite sliding slots and two locking tabs relative to the sliding slots, and a locking structure disposed on the base and including two annular recesses arranged on an outer periphery of the base and communicating with the groove to receive two engaging members respectively, on an outer periphery of the base being fitted a pressing member in which an abutting surface formed therein.