Sk Planet Co., Ltd.

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Jinho Jeon

Kyunghee Kim

Eunbok Lee

Mikyung Ha

Hoyeon Kim

Sanghyun Kim

Insung Kim

Bokyung Cho

A reticle in an apparatus for extreme ultraviolet (EUV) exposure includes a substrate having an image area and a black border area surrounding the image area, a multi-layer structure on the image area and the black border area of the substrate, the multi-layer structure to reflect EUV light, a capping layer covering the multi-layer structure, first absorber layer patterns on the capping layer in the image area and the black border area, and an absorber structure on the capping layer in the black border area, the absorber structure including one of the first absorber layer patterns, a hard mask pattern, and a second absorber layer pattern sequentially stacked, the absorber structure covering an entire upper surface of the capping layer in the black border area.

Reticle in an apparatus for extreme ultraviolet exposure

There are provided a device and method for providing a mobile Internet call service. In order to reduce a call waiting time for an mVoIP call, when a call is an initial call after power of a terminal is turned on or using the main call number, information for a call connection is acquired in advance and a light weight session is maintained. When the mVoIP call is made later, the maintained light weight session is used to make a direct P2P call. Therefore, it is possible to reduce a call connection time. As a result, when the mVoIP call attempt is made, a call waiting time is significantly reduced and thus it is possible to provide a rapid response and improve user satisfaction. When the light weight session is maintained, access to a separate server system is not performed. As a result, it is possible to connect a P2P call even when call traffic is heavy.

Device and method for providing mobile internet call service

Provided are a method, device and system for estimating the location of a user device by using radio signals emitted from access point (AP) devices. In the location estimating method implemented by the user device may include steps of measuring received signal strength of a signal received from two or more AP devices deployed within a specific range, establishing a binding box for each of the two or more AP devices by using the measured received signal strength, and estimating a current location of the user device by using points of contact between the established binding boxes.

Method, device and system for estimating location

Disclosed are a device and method for providing a mobile Internet call service. In order to reduce a call waiting time for an mVoIP call, when a call is an initial call after power of a terminal is turned on or using the main call number, information for a call connection is acquired in advance and a light weight session is maintained. When the mVoIP call is made later, the maintained light weight session is used to make a direct P2P call. Therefore, it is possible to reduce a call connection time. As a result, a call waiting time is significantly reduced and thus it is possible to provide a rapid response and improve user satisfaction. When the light weight session is maintained, access to a separate server system is not performed. As a result, it is possible to connect a P2P call even when call traffic is heavy.

Device and method for providing mobile Internet call service

A home appliance and a method of controlling the same are provided. The home appliance may include a controller that processes state data. The state data may include raw data representing an operation state of the home appliance. The controller may also output diagnosis result data representing whether or not an error has occurred in the home appliance. A tag device including a tag storage device may store the state data and the diagnosis result data, and a transmitting and receiving device may transmit the state data and the diagnosis result data when an external device is tagged.

Home appliance and method of controlling the same

An extreme ultraviolet light (EUL) source device is disclosed, the device comprising: a chamber in which a gas flow and a droplet stream are provided; a droplet generator through which target material is changed into the droplet stream; and a shroud positioned along the droplet stream, the shroud shielding the droplet stream from the gas flow, wherein the droplet stream is irradiated by laser to produce plasma and generate an extreme ultraviolet light. The shroud includes flow guide surface features that guide accumulated target material away from a collector mirror that reflects and focuses the EUL.

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Seoul, South Korea

Jinho Jeon