Abstract: A method includes forming a first low-dimensional layer over an isolation layer, forming a first insulator over the first low-dimensional layer, forming a second low-dimensional layer over the first insulator, forming a second insulator over the second low-dimensional layer, and patterning the first low-dimensional layer, the first insulator, the second low-dimensional layer, and the second insulator into a protruding fin. Remaining portions of the first low-dimensional layer, the first insulator, the second low-dimensional layer, and the second insulator form a first low-dimensional strip, a first insulator strip, a second low-dimensional strip, and a second insulator strip, respectively. A transistor is then formed based on the protruding fin.

Abstract: A cutting tool holding device includes a base and a holder. The base includes a base body and an inserted bore. The base body includes a central connecting surface and two positioning surfaces. A lateral edge of each of the positioning surfaces is connected to the central connecting surface, and the two lateral edges are defined as a first lateral edge pair. The holder includes a disposing head and a shaft. The disposing head includes a head body and a tool bore. The head body includes a disposing surface and two bearing surfaces. Two lateral edges of the two bearing surfaces are defined as a second lateral edge pair. Two extending lines of the two lateral edges of at least one of the first lateral edge pair and the second lateral edge pair are close to each other.

Abstract: A track link plate includes a main body, a first shaft hole, a second shaft hole, two through holes, a supporting rib and a first extending portion. The first shaft hole passes through a first end of the main body. The second shaft hole passes through a second end of the main body. The two through holes are arranged in an interval between the first shaft hole and the second shaft hole. The supporting rib is located between the two through holes. The first extending portion protrudes outward from a second surface of the main body. A distance of the first extending portion from the edge of the through holes to the rotating inner edge is greater than or equal to one third of a total height of the main body. Therefore, the strength of the track link plate can be strengthened.

Abstract: A track roller assembly includes a wheel body, a bearing, a wheel axle, a cap element, a rotating oil seal, an end cover and an oil body. The wheel body has a thread. The bearing is disposed on the wheel body. The wheel axle is disposed through the bearing. The cap element has a screw corresponding to the thread. One side of the rotating oil seal is connected to the cap element, and another side of the rotating oil seal rotatably abuts the wheel axle. The end cover is connected to the wheel axle. The oil body is limited to an accommodating space formed by the wheel body, the wheel axle, the cap element and the rotating oil seal.

Abstract: An insert element structure of a track rubber pad, which is connected to a track shoe plate of a caterpillar vehicle by at least one screw member, the insert element structure of the track rubber pad includes a rubber pad, at least one insert element, and at least two fasteners. The rubber pad is detachably connected to the track shoe plate. Each of two ends of the at least one insert element includes at least one hole, wherein the at least one insert element is cladded in the at least one projection of the rubber pad. Each of the at least two fasteners is passed through and disposed in each of the holes of the at least one insert element, wherein each of the at least two fasteners includes an abutting portion, an opening portion and a threaded portion.

Abstract: A track link plate includes a main body, a first shaft hole, a second shaft hole, two through holes, a supporting rib and a first extending portion. The first shaft hole passes through a first end of the main body. The second shaft hole passes through a second end of the main body. The two through holes are arranged in an interval between the first shaft hole and the second shaft hole. The supporting rib is located between the two through holes. The first extending portion protrudes outward from a second surface of the main body. A distance of the first extending portion from the edge of the through holes to the rotating inner edge is greater than or equal to one third of a total height of the main body. Therefore, the strength of the track link plate can be strengthened.

Abstract: A track roller assembly includes a wheel body, a bearing, a wheel axle, a cap element, a rotating oil seal, an end cover and an oil body. The wheel body has a thread. The bearing is disposed on the wheel body. The wheel axle is disposed through the bearing. The cap element has a screw corresponding to the thread. One side of the rotating oil seal is connected to the cap element, and another side of the rotating oil seal rotatably abuts the wheel axle. The end cover is connected to the wheel axle. The oil body is limited to an accommodating space formed by the wheel body, the wheel axle, the cap element and the rotating oil seal.

Abstract: An insert element structure of a track rubber pad, which is connected to a track shoe plate of a caterpillar vehicle by at least one screw member, the insert element structure of the track rubber pad includes a rubber pad, at least one insert element, and at least two fasteners. The rubber pad is detachably connected to the track shoe plate. Each of two ends of the at least one insert element includes at least one hole, wherein the at least one insert element is cladded in the at least one projection of the rubber pad. Each of the at least two fasteners is passed through and disposed in each of the holes of the at least one insert element, wherein each of the at least two fasteners includes an abutting portion, an opening portion and a threaded portion.

Abstract: A cutting tool holding device, which is for holding a cutting tool, includes a base, a holder, and a limiting set, wherein the holder is disposed on the base, and the limiting set is disposed in a non-circular channel of the base. A connecting shaft portion of the holder is for inserting into a storage hole of the base, wherein the connecting shaft portion includes a shaft body and at least one positioning portion, and the non-circular channel includes an abutting member and a bolt. The bolt is passed through the abutting member, wherein the abutting member is moved to an opening hole of the storage hole along an axis by rotating the bolt so as to push the positioning portion and abut the shaft body.

Abstract: A track shoe pad structure assembly is connected to a track chain of a caterpillar vehicle. The track shoe pad structure assembly includes a track shoe pad, a reinforcing unit and an elastic element. The track shoe pad is for connecting to the track chain and includes a notch. One side of the reinforcing unit is detachably connected to the notch, and the reinforcing unit includes a base frame disposed on the track shoe pad and at least one supporting rib disposed on one side of the base frame which is located away from the track shoe pad. The elastic element is detachably connected to the other side of the reinforcing unit, and the elastic element includes at least one recessed trough for containing the supporting rib.

Abstract: A cutting tool holding mechanism includes a base, a handle and a locking assembly. The base includes an abutting portion, a receiving bore, at least one limiting bore and at least one limiting hole. The limiting hole is disposed at the base and communicated with the limiting bore. The handle abutted against the base includes a sleeved portion and a plurality of positioning surfaces. The locking assembly includes a packing ring, a locking screw, a locking member and a guiding bolt. The locking member received inside the limiting bore includes a screwed hole and a guiding groove. The guiding groove disposed at one side of the locking member and is aligned with the limiting hole when the locking member is disposed inside the limiting bore. The guiding bolt is disposed in the limiting hole and is abutted against the guiding groove to inhibit the locking member from rotating.

Abstract: A cutting tool holding device, which is for holding a cutting tool, includes a base, a holder, and a limiting set, wherein the holder is disposed on the base, and the limiting set is disposed in a non-circular channel of the base. A connecting shaft portion of the holder is for inserting into a storage hole of the base, wherein the connecting shaft portion includes a shaft body and at least one positioning portion, and the non-circular channel includes an abutting member and a bolt. The bolt is passed through the abutting member, wherein the abutting member is moved to an opening hole of the storage hole along an axis by rotating the bolt so as to push the positioning portion and abut the shaft body.

Abstract: A cutting tool holding device for holding a cutting tool is provided. The cutting tool holding device includes a base, a holder, and a fastening member. The base includes a rabbet, an angular receiving hole, and a positioning hole. The holder includes a main body and a tool receiving corner post. The main body includes an engaging portion which is detachably engaged into the rabbet. The tool receiving corner post extending projects from the main body and is correspondingly set into the angular receiving hole, wherein a position limiting groove is formed on the tool receiving corner post corresponded with the positioning hole. The fastening member is fastened in the positioning hole and pressed against the position limiting groove.

Abstract: A cutting tool holding device includes a base, a cutting tool holder, a screw element, a fitting positioning element and a pulling element. The base includes an accommodating groove, a receiving hole and a fitting positioning hole. The cutting tool holder includes a holder and a cutting tool receiving component. The holder includes an engaging portion detachably engaged in the accommodating groove, and a concave portion communicated with the fitting positioning hole is formed on the engaging portion. The fitting positioning element is driven by the pulling element to move in the fitting positioning hole for pressing against the concave portion tightly.

Abstract: A cutting tool holding device for holding a cutting tool is provided. The cutting tool holding device includes a base, a holder, and a fastening member. The base includes an embedding portion, an arc receiving hole, and a positioning hole. The holder includes a main body, an arc receiving post, and a guiding block. The main body includes an embedding concave which is detachably embedded with the embedding portion. The arc receiving post is correspondingly set into the arc receiving hole for stably assembled, and the scrap will be guided and discharged through the guiding block.

Abstract: A cutting tool holding mechanism includes a base, a handle and a locking assembly. The base includes an abutting portion, a receiving groove, at least one limiting groove and at least one limiting hole. The limiting hole is disposed at the base and communicated with the limiting groove. The handle abutted against the base includes a sleeved portion and a plurality of positioning surfaces. The locking assembly includes a packing ring, a locking screw, a locking member and a guiding bolt. The locking member received inside the limiting groove includes a screwed hole and a guiding groove. The guiding groove disposed at one side of the locking member and is aligned with the limiting hole when the locking member is disposed inside the limiting groove. The guiding bolt is disposed in the limiting hole and is abutted against the guiding groove to inhibit the locking member from rotating.

Abstract: A track shoe pad structure assembly is connected to a track chain of a caterpillar vehicle. The track shoe pad structure assembly includes a track shoe pad, a reinforcing unit and an elastic element. The track shoe pad is for connecting to the track chain and includes a notch. One side of the reinforcing unit is detachably connected to the notch, and the reinforcing unit includes a base frame disposed on the track shoe pad and at least one supporting rib disposed on one side of the base frame which is located away from the track shoe pad. The elastic element is detachably connected to the other side of the reinforcing unit, and the elastic element includes at least one recessed trough for containing the supporting rib.

Abstract: A cutting tool holding device for holding a cutting tool is provided. The cutting tool holding device includes a base, a holder, and a fastening member. The base includes a rabbet, an angular receiving hole, and a positioning hole. The holder includes a main body and a tool receiving corner post. The main body includes an engaging portion which is detachably engaged into the rabbet. The tool receiving corner post extending projects from the main body and is correspondingly set into the angular receiving hole, wherein a position limiting groove is formed on the tool receiving corner post corresponded with the positioning hole. The fastening member is fastened in the positioning hole and pressed against the position limiting groove.

Abstract: A cutting tool holding device includes a base, a cutting tool holder, a screw element, a fitting positioning element and a pulling element. The base includes an accommodating groove, a receiving hole and a fitting positioning hole. The cutting tool holder includes a holder and a cutting tool receiving component. The holder includes an engaging portion detachably engaged in the accommodating groove, and a concave portion communicated with the fitting positioning hole is formed on the engaging portion. The fitting positioning element is driven by the pulling element to move in the fitting positioning hole for pressing against the concave portion tightly.

Abstract: A cutting tool holding device includes a base, a positioning tube and a positioning member. The base includes a mounting hole and a through hole, and the through hole is formed at a side of the mounting hole and communicated with the mounting hole. The positioning tube includes an axial receiving hole, an accommodated portion and a limiting groove. The axial receiving hole is formed within the positioning tube for receiving a cutting tool. The accommodated portion is disposed at an end of the positioning tube for being installed into the mounting hole. The limiting groove is formed on a side of the accommodated portion. The positioning member is positioned in the through hole of the base, wherein the positioning member abuts against the limiting groove of the positioning tube.