Abstract: A semiconductor device including a first interlayer insulating film; a conductive pattern in the first interlayer insulating film; a resistance pattern on the conductive pattern; an upper etching stopper film spaced apart from the resistance pattern, extending in parallel with a top surface of the resistance pattern, and including a first metal; a lower etching stopper film on the conductive pattern, extending in parallel with a top surface of the first interlayer insulating film, and including a second metal; and a second interlayer insulating film on the upper etching stopper film and the lower etching stopper film, wherein a distance from a top surface of the second interlayer insulating film to a top surface of the upper etching stopper film is smaller than a distance from the top surface of the second interlayer insulating film to a top surface of the lower etching stopper film.

Abstract: A method of manufacturing a multilayer electronic component includes cutting a stack, in which internal electrode patterns and ceramic green sheets are alternately stacked in a stacking direction, to obtain unit chips and attaching a portion of a ceramic green sheet for a side margin portion to the unit chips in a direction, different from the stacking direction. The attaching includes attaching the portion of the ceramic green sheet to the unit chips by compression between a first elastic body on which the ceramic green sheet is disposed and the unit chips. The first elastic body includes a first elastic layer having and a second elastic layer having an elastic modulus different from the first elastic layer, and disposed between the unit chips and the first elastic layer. An elastic modulus of the first elastic body is greater than 50 MPa and less than or equal to 1000 MPa.

Abstract: A semiconductor device including: a first transistor which include a first gate stack on a substrate; and a second transistor which includes a second gate stack on the substrate, wherein the first gate stack includes a first ferroelectric material layer disposed on the substrate, a first work function layer disposed on the first ferroelectric material layer and a first upper gate electrode disposed on the first work function layer, wherein the second gate stack includes a second ferroelectric material layer disposed on the substrate, a second work function layer disposed on the second ferroelectric material layer and a second upper gate electrode disposed on the second work function layer, wherein the first work function layer includes the same material as the second work function layer, and wherein an effective work function of the first gate stack is different from an effective work function of the second gate stack.

Abstract: A molding method for a cover window includes: locally heating a peripheral portion of a glass substrate around a central portion of the glass substrate to a temperature of about 610° C. to about 670° C., forming a cover window by pressing the glass substrate, and annealing and cooling the cover window. Accordingly, a cover window in which each of edges has an outwardly convex curved surface through a glass substrate may be formed. In addition, the surface roughness of a cover window formed through a glass substrate may be improved.

Abstract: A hollow brushless motor is provided. The hollow brushless motor includes a hollow shape rotor to be rotatable about a rotation axis, a hollow shape stator spaced apart from the rotor by a distance in a direction of the rotation axis and arranged to face the rotor, and a first support to maintain a gap between the rotor and the stator, and arranged between the rotor and the stator to support the rotor and the stator such that the rotor rotates with respect to the stator.

Abstract: A lens driving module for driving a lens along an optical axis is provided. The lens driving module includes a stator having a hollow cylindrical shape through which the optical axis passes through and including coils, a rotator having a hollow shape through which the optical axis passes, mounted on an outer side of the stator, capable of rotating with respect to the stator with the optical axis as a center line, and including magnets facing the coils, and at least one of rotation connecting members connecting the rotator to the stator such that the rotator may rotate with respect to the stator to maintain a gap between the coils and the magnets.

Abstract: A lens driving module for driving a lens along an optical axis is provided. The lens driving module includes a stator having a hollow cylindrical shape through which the optical axis passes through and including coils, a rotator having a hollow shape through which the optical axis passes, mounted on an outer side of the stator, capable of rotating with respect to the stator with the optical axis as a center line, and including magnets facing the coils, and at least one of rotation connecting members connecting the rotator to the stator such that the rotator may rotate with respect to the stator to maintain a gap between the coils and the magnets.

Abstract: A hollow brushless motor is provided. The hollow brushless motor includes a hollow shape rotor to be rotatable about a rotation axis, a hollow shape stator spaced apart from the rotor by a distance in a direction of the rotation axis and arranged to face the rotor, and a first support to maintain a gap between the rotor and the stator, and arranged between the rotor and the stator to support the rotor and the stator such that the rotor rotates with respect to the stator.

Abstract: A power transmitting mechanism assembly including a supporting plate; a first roller, which is rotatably attached to the supporting plate; a first plate, which contacts a first end of the first roller and is arranged to be able to rotate with respect to the supporting plate; a power generating unit, which generates power for rotating the first plate when a signal is applied; a second plate, which is arranged to contact a second end of the first roller; and a friction changing unit, which is attached to at least one of the first roller, the first plate, and the second plate and changes friction of a portion of a contacting surface between the first roller and the first plate or friction of a portion of a contacting surface between the first roller and the second plate.

Abstract: A power transmitting mechanism assembly including a supporting plate; a first roller, which is rotatably attached to the supporting plate; a first plate, which contacts a first end of the first roller and is arranged to be able to rotate with respect to the supporting plate; a power generating unit, which generates power for rotating the first plate when a signal is applied; a second plate, which is arranged to contact a second end of the first roller; and a friction changing unit, which is attached to at least one of the first roller, the first plate, and the second plate and changes friction of a portion of a contacting surface between the first roller and the first plate or friction of a portion of a contacting surface between the first roller and the second plate.