Lg Electronics Inc.

Stats Chippac Pte. Ltd.

Kyunghwan Kim

Yongcheol Park

Gyunghwan Yook

Jihyun Lee

Seonghun Lee

Byungsang Jung

Hwanyong Kim

HunTeak Lee

Gyunghwan Yuk

Jinho Youn

KyoungHee Park

Bongsik Kwak

Beomseok Chae

InSang Yoon

Jaesung Lee

Minjung Kim

Jeongkyo Seo

DeokKyung Yang

Inho Choi

OhHan Kim

Seong Hun Lee

Hyoungseok Kim

Sungmin Baek

Joomin Kim

Hyoung Seok Kim

SeongHun Mun

Woonjae Beak

Hanyoung Ko

In Sang Yoon

Kidong Kim

Jinmoo Park

Taewook Kwon

Sooyong Park

Junggu Lee

Joohyung Kim

Junyoung Lim

Jungjoon Lee

Ikseo Park

Myungkyun K Kiem

Hongkwon Kim

Seunghyun Lee

KeoChang Lee

Bumsuk Kim

Namsik Yim

Changwoo Sung

Hyeonchul Lee

Jooseong Lee

Sungwon Han

SangJun Park

Keunseo Park

Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.

Wireless charging apparatus that can support user terminal in various directions and at various angles

A wireless power transmission apparatus includes a shielding plate, a transmission coil on the shielding plate, and a shielding member disposed on the shielding plate and configured to surround the transmission coil. The shielding plate may shield a magnetic field formed to a lower side of the transmission coil. The shield member can offset the magnetic field formed on the side of the transmission coil. Thus, the embodiment can minimize EMI or EMF caused by the magnetic field formed on the lower side and the side of the transmission coil.

Wireless power transmission apparatus

A semiconductor device has a PCB with an antenna and a semiconductor package mounted onto the PCB. An epoxy molding compound bump is formed or disposed over the PCB opposite the semiconductor package. A first shielding layer is formed over the PCB. A second shielding layer is formed over the semiconductor package. A board-to-board (B2B) connector is disposed on the PCB or as part of the semiconductor package. A conductive bump is disposed between the semiconductor package and PCB.

Antenna-in-package devices and methods of making

A wireless power transmission apparatus comprises: a plurality of transmission coils configured to transmit a wireless power to a wireless power reception apparatus; a shielding coil which is arranged on at least one surface of a dielectric substrate, and is configured in a loop shape having at least two turns so as to surround the plurality of transmission coils; and a capacitor configured to connect one point to the other point of the shielding coil. The plurality of transmission coils are arranged inside the shielding coil disposed on the dielectric substrate, and the direction of a magnetic field formed at one side and the other side of the plurality of transmission coils adjacent to the shielding coil is formed to be opposite to the direction of a magnetic field formed around the shielding coil so that the shielding coil shields external exposure of electromagnetic waves by the plurality of transmission coils.

Wireless power transmission apparatus, wireless power reception apparatus, and wireless charging system

The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic coupling with the wireless power transmission apparatus and convert an AC signal generated by the wireless power into a DC signal; a communication/control unit configured to receive the DC signal from the power pick-up unit and control the wireless power; and a load configured to receive the DC signal from the power pick-up unit. When foreign material is detected before power transmission, wireless power transmission is sustained on the basis of a safe basic power profile of 5 W or less, without interrupting power transmission, and thus, a charging delay can be prevented and the accuracy and reliability of detection of foreign material can be increased despite individual characteristics of the wireless power reception apparatus.

Apparatus and method for performing wireless power transmission on basis of foreign material detection

A wireless power transmitter according to one embodiment of the present disclosure comprises a primary coil forming magnetic coupling with a secondary coil provided in a wireless power receiver and transmitting wireless power to the wireless power receiver, wherein the primary coil is formed by spirally winding a plurality of subcoils connected electrically in parallel while keeping the subcoils in contact with each other, and the subcoil is litz wire consisting of several conducting wires packed in a bundle.

Wireless power transmitter

A wireless power reception apparatus according to an embodiment of the present specification comprises: a power pickup circuit for receiving, by magnetic coupling to a wireless power transmission apparatus, wireless power from the wireless power transmission apparatus; and a communication/control circuit for communicating with the wireless power transmission apparatus and controlling the received wireless power, wherein the communication/control circuit transmits, before entering a power transmission phase, to the wireless power transmission apparatus, information regarding a first reference quality factor Qt′(ref) measured at a first frequency f(ref) and information regarding a second reference quality factor Qt′(ref) measured at a second frequency f(ref).

Wireless power reception apparatus, wireless power transmission apparatus, and foreign matter detection method using same

A semiconductor manufacturing equipment has an outer case housing including a lower case extension to support a semiconductor panel. The lower case extension is fixed in position within the outer case housing. An inner case housing having an upper case extension is disposed within the outer case housing in proximity to the lower case extension. A mechanism draws the upper case extension toward the lower case extension and locks the semiconductor panel in place between the upper case extension and lower case extension. The mechanism has a cam assembly disposed above the inner case housing and operatable with a handle to rotate the cam assembly and apply pressure to the inner case housing and upper case extension to lock the semiconductor panel in place between the upper case extension and lower case extension. A spring or other elastic mechanism is disposed under the inner case housing to load the pressure.

Semiconductor manufacturing device to securely hold semiconductor panels for transport and manufacturing processes

Provided are an apparatus and method for performing foreign object detection in a wireless power transfer system. The present specification discloses a method comprising receiving a digital ping from the wireless power transmitter; transmitting an identification and configuration packets to the wireless power transmitter; transmitting a foreign object detection (FOD) state packet which indicates a reference Q factor of the wireless power receiver to the wireless power transmitter; and receiving wireless power through magnetic coupling from the wireless power transmitter based on the foreign object detection result of the wireless power transmitter using the reference Q factor. Irrespective of individual characteristics of a wireless power receiver, accuracy and reliability of detecting a foreign object may be improved.

Apparatus and method for performing foreign object detection in wireless power transfer system

Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit for receiving wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device and transforming, into a direct current signal, an alternating current signal generated by wireless power; a communication/control unit for receiving the direct current signal from the power pickup unit, transmitting, to the wireless power transmission device, a first power transmission suspension packet for temporarily suspending transmission of the wireless power in order to detect a foreign object, and performing a foreign object detection procedure within a predetermined time window when the transmission of the wireless power is temporarily suspended; and a load for receiving the direct current signal from the power pickup unit.

Apparatus and method for detecting foreign object in wireless power transmission system

The present disclosure relates to a wireless charging device capable of efficiently charging one or more user terminals by performing a tilt function with respect to a portion where the user terminal is held. According to an embodiment of the present disclosure, the wireless charging device include a first body, a depression defined in the first body, a terminal holder that is coupled to an inner surface at both sides of the depression using a hinge and rotates with respect to the first body, a wireless charger disposed in the terminal holder, a second body connected to the first body and inclined with respect to the first body, and a display provided in the second body.

Wireless charging device for simultaneously charging a plurality of user terminals by performing tilt function

The present disclosure relates to a wireless power receiver and a method therefor, the wireless power receiver comprising: a secondary coil which is magnetically coupled to a primary coil provided in a wireless power transmitter so as to receive wireless power from the wireless power transmitter; a shielding member for supporting the secondary coil; a power pickup unit including a rectifier circuit which rectifies an alternating current signal of the wireless power received by the secondary coil into a direct current signal; and a communication/control unit for controlling transmission of the wireless power and communicating with the wireless power transmitter. On the basis of the secondary coil and shielding member according to the present embodiment, slimming of an applied product may be achieved and, simultaneously, the same target performance index (required for a medium power level (for example, 60 W) standard) may be realized.

Wireless power reception apparatus and method therefor

A semiconductor device has a semiconductor die or component, including an IPD, disposed over an attach area of a penetrable film layer with a portion of the semiconductor die or component embedded in the penetrable film layer. A conductive layer is formed over a portion of the film layer within the attach area and over a portion of the film layer outside the attach area. An encapsulant is deposited over the film layer, conductive layer, and semiconductor die or component. The conductive layer extends outside the encapsulant. An insulating material can be disposed under the semiconductor die or component. A shielding layer is formed over the encapsulant. The shielding layer is electrically connected to the conductive layer. The penetrable film layer is removed. The semiconductor die or component disposed over the film layer and covered by the encapsulant and shielding layer form an SIP module without a substrate.

Semiconductor device and method of forming SIP module over film layer

Growing community of inventors

Seoul, South Korea

Kyunghwan Kim