Samsung Electronics Co., Ltd.

Jeongseok Lee

Kwonho Song

Yudong Bae

Jaeyoung Huh

Yonggu Lee

Yanghee Lee

Kihun Eom

Jaehwan Park

Yoonhwan Son

Beomju Kim

Donggyu Kim

Ilyoung Kim

Changkwan Yang

Taesik Kim

Minku Lee

Junho Noh

Youngbin Chong

Namjin Choi

Woonki Dae

Soonkoo Shim

Seunghwan Jung

An actuator according to various embodiments of the present invention comprises: a stator including a bracket, a yoke located on the bracket, and a coil for encompassing the circumference of the yoke; a permanent magnet encompassing the circumference of the coil; a vibrator including a weight encompassing the circumference of the permanent magnet, and a plate for supporting the permanent magnet and the weight; an elastic member located between the bracket and the vibrator so as to support the vibrator; and a magnetic fluid which is located between the vibrator and the stator, and which provides damping stability when the vibrator vibrates, wherein the weight of the magnetic fluid can be between 0.24% to 0.71% on the basis of the weight of the vibrator. Other various embodiments are possible.

Haptic actuator and electronic device including same

A three-dimensional semiconductor memory device includes a peripheral circuit structure having peripheral circuits on a semiconductor substrate, and landing pads connected to the peripheral circuits, an electrode structure on the peripheral circuit structure, the electrode structure including vertically stacked electrodes, a planarized dielectric layer that covers the electrode structure, peripheral through plugs spaced apart from the electrode structure, the peripheral through plugs penetrating the planarized dielectric layer to connect to the landing pads, conductive lines connected through contact plugs, respectively, to the peripheral through plugs, and at least one dummy through plug adjacent to a first peripheral through plug of the peripheral through plugs, the at least one dummy through plug penetrating the planarized dielectric layer and being insulated from the conductive lines.

Three-dimensional semiconductor memory device

A foldable electronic device is provided, which includes a hinge structure, a first housing that is connected to the hinge structure, a second housing that is connected to the hinge, a first vibration element disposed in the first housing, a first motion sensor disposed adjacent to the first vibration element, a second motion sensor disposed in the second housing, a processor, and a memory. The memory stores instructions that, when executed, cause the processor to control vibration intensity of the first vibration element, based on a first value measured from the first motion sensor and a second value measured from the second motion sensor.

Electronic device with foldable display and control method thereof

Various embodiments of the present invention relate to a method for controlling an actuator. The present invention can detect a haptic generation event through a sensor unit, check data of an actuator and data of a human receptor stored in a memory in response to the haptic generation event, calculate a driving voltage of the actuator on the basis of the checked data of the actuator and the checked data of the human receptor, and drive the actuator with the calculated driving voltage. Other embodiments are also possible.

Electronic device and method for controlling actuator by utilizing same

Growing community of inventors

Gyeonggi-do, South Korea

Jeongseok Lee