Abstract: A semiconductor device includes a substrate, a stack of semiconductor nanosheets, a dielectric wall, and a gate structure. The substrate includes a nanosheet mesa, and the stack of semiconductor nanosheets is disposed on the nanosheet mesa. The dielectric wall crosses through the nanosheet mesa and the stack of semiconductor nanosheets. The gate structure wraps the stack of semiconductor nanosheets and crosses over the dielectric wall, wherein a top of the dielectric wall has a recess.

Abstract: A bicycle operating device includes a main body, a speed shafting unit, a brake lever, a fluid pressure generating assembly, a first operation assembly and a second operation assembly. The speed shafting unit is disposed on the main body and includes a reel and a shaft. The reel is disposed on the shaft. The brake lever is rotatably connected to the main body. The fluid pressure generating assembly is disposed on the main body and includes a cylinder, a piston assembly and a reservoir. The reservoir is located above the cylinder.

Abstract: A bicycle operating device includes a housing, a derailleur structure, a brake lever, a first operation assembly and a second operation assembly. The derailleur structure is disposed on the housing and includes a wire reel and a mandrel. The brake lever is rotatably disposed on the housing. The first operating assembly is disposed on the housing and is reversibly rotatable relative to the housing to drive the wire reel to rotate and pull a shift cable. The first operating assembly has a first actuating surface disposed thereon. The second operating assembly has a second actuating surface disposed thereon.

Abstract: A bicycle rear derailleur is provided, including a mounting portion; a linkage mechanism, pivoted to the mounting portion and having an extension portion having a cable fixing point and being located at an inner position relative to an outer side of the linkage mechanism; a guiding mechanism, pivoted to the linkage mechanism and being rotatable about an axis, the guiding mechanism including a first pulley defining a pulley plane and a second pulley, an extension line which is perpendicular to the axis and an axial extension line of the second pulley being defined as a first reference line; wherein when the bicycle rear derailleur is located on an initial position, the cable fixing point is between the first reference line and the mounting portion, and the cable fixing point dose not cross the pulley plane during gearshift of the bicycle rear derailleur relative to rear sprockets.

Abstract: A bicycle rear derailleur is provided, including a mounting portion; a linkage mechanism, pivoted to the mounting portion and having an extension portion having a cable fixing point and being located at an inner position relative to an outer side of the linkage mechanism; a guiding mechanism, pivoted to the linkage mechanism and being rotatable about an axis, the guiding mechanism including a first pulley defining a pulley plane and a second pulley, an extension line which is perpendicular to the axis and an axial extension line of the second pulley being defined as a first reference line; wherein when the bicycle rear derailleur is located on an initial position, the cable fixing point is between the first reference line and the mounting portion, and the cable fixing point dose not cross the pulley plane during gearshift of the bicycle rear derailleur relative to rear sprockets.