Abstract: According to an aspect of the present disclosure, there is provided a pre-mold substrate including an electroconductive base member, which includes a first pre-mold groove formed in a bottom surface and a second pre-mold groove formed in a top surface and constitutes a circuit pattern; a first pre-mold resin disposed in the first pre-mold groove; and a second pre-mold resin disposed in the second pre-mold groove.

Abstract: The present invention provides a 3D printer composition, a 3D printer filament using same, and a method for manufacturing a metal steel product by using the filament, the composition including: 10 wt % to 30 wt % of a polymer binder including 3.5 wt % to 10 wt % of polyacetal, 3.5 wt % to 10 wt % of a polyolefin elastomer, 2 wt % to 6 wt % of a plasticizer, and 1 wt % to 4 wt % of a lubricant; and 70 wt % to 90 wt % of a metal powder.

Abstract: A marine drive is configured to propel a marine vessel in a body of water. The marine drive has an engine; a primary exhaust conduit receiving exhaust gases from the engine and discharging the exhaust gases to a primary exhaust outlet discharging the exhaust gases to the body of water; an idle relief exhaust outlet discharging exhaust gases to atmosphere, above the body of water; a primary idle relief muffler receiving exhaust gases from the primary exhaust conduit; a secondary idle relief muffler receiving exhaust gases from the primary idle relief muffler; and a tertiary idle relief muffler configured to receive exhaust gases from the secondary idle relief muffler and discharges exhaust gases to atmosphere via the idle relief exhaust outlet.

Abstract: An intake manifold is for a marine engine having a throttle for controlling flow of intake air to the marine engine. The intake manifold has a plenum for receiving the intake air from the throttle, a plurality of intake runners which extends from upstream ends for receiving the intake air from the plenum to downstream ends for discharging the intake air to the marine engine, and a quarter wave resonator extending from an open end coupled to the plenum to a closed end, the quarter wave resonator having a tuned elongated cavity configured to attenuate sound emanating from the marine engine via the plurality of intake runners.

Abstract: The present invention relates to a binder composition for metal powder injection molding, and more specifically, to a binder composition for metal powder injection molding, which can be promptly debound, facilitates the setting of flow conditions in an injection process, and enables the minimization of poor debinding such as swelling, carbonization of low-molecular-weight binders, and other internal defects, during a debinding process. The binder composition for metal powder injection molding of the present invention contains 10 to 50 wt % of a high-viscosity polyoxymethylene polymer and 50 to 90 wt % of a low-viscosity polyoxymethylene polymer.

Abstract: A substrate surface grinding apparatus includes: a grinding device including a plurality of grinding rollers configured to grind a surface of a substrate; and a substrate support member configured to support the substrate, wherein rotational axes of the grinding rollers are disposed to be inclined to rotational axes of adjacent grinding rollers.

Abstract: A printed circuit board includes: a first insulating layer; a first circuit layer disposed on one surface of the first insulating layer; a second insulating layer disposed on the first insulating layer and covering at least a portion of the first circuit layer; a via conductor passing through the second insulating layer and connected to the first circuit layer; a via land connected to the via conductor in an upper portion of the via conductor; and a second circuit layer disposed on the second insulating layer and connected to the via land. The via conductor and the via land have a first interface where the via conductor and the via land are in contact with each other.

Abstract: According to an embodiment of the disclosure, a method of fabricating a carrier for a wafer level package (WLP) by using a lead frame, wherein the lead frame is fabricated by forming a trench and a post by performing first half etching on an upper surface of a base substrate comprising a conductive material, filling the first-half-etched surface with resin of an insulating material, removing the resin exposed to outside of the trench so that an upper surface of the trench and an upper surface of the resin are at a same level, and performing second half etching on a lower surface of the base substrate, in which a memory chip is attached to the lower surface of the base substrate.

Abstract: According to one or more embodiments, there is provided an apparatus for polishing a surface of a substrate to remove a resin layer formed on the surface of the substrate having a groove, the apparatus including: a laser irradiation apparatus configured to irradiate a laser to the resin layer to remove at least a portion of a resin from the resin layer except for a portion of the resin layer arranged in the groove.

Abstract: According to an embodiment of the disclosure, a method of fabricating a carrier for a wafer level package (WLP) by using a lead frame, wherein the lead frame is fabricated by forming a trench and a post by performing first half etching on an upper surface of a base substrate comprising a conductive material, filling the first-half-etched surface with resin of an insulating material, removing the resin exposed to outside of the trench so that an upper surface of the trench and an upper surface of the resin are at a same level, and performing second half etching on a lower surface of the base substrate, in which a memory chip is attached to the lower surface of the base substrate.

Abstract: A source node includes a topology information extractor configured to acquire information of a channel state between nodes included in a multicast network, and extract topology information of the multicast network. The source node further includes a relay node selector configured to select, from the nodes, a relay node to relay a packet transmitted from the source node, based on the topology information.

Abstract: The present invention relates to a method for reducing power consumption of a wireless terminal, comprising the operations of: when receiving a triggering packet from the wireless terminal, estimating parameters related to reduction of the power consumption of the wireless terminal; when receiving a condition including a required reduction amount for the power consumption, determined on the basis of the parameters, and time delay related information, setting a clustering cycle corresponding to the condition; and performing a wireless communication with the wireless terminal on the basis of the clustering cycle.

Abstract: A method for estimating a battery consumption state of a mobile communication terminal is provided. The method includes building a database with battery characteristic information changing according to at least one of a temperature and an aging characteristic of a battery supplying power to the mobile communication terminal, and estimating a power consumption of the mobile communication terminal and a battery drain rate based on the battery characteristic information and displaying estimated information.

Abstract: The present invention relates to a method for reducing power consumption of a wireless terminal, comprising the operations of: when receiving a triggering packet from the wireless terminal, estimating parameters related to reduction of the power consumption of the wireless terminal; when receiving a condition including a required reduction amount for the power consumption, determined on the basis of the parameters, and time delay related information, setting a clustering cycle corresponding to the condition; and performing a wireless communication with the wireless terminal on the basis of the clustering cycle.

Abstract: A method for estimating a battery consumption state of a mobile communication terminal is provided. The method includes building a database with battery characteristic information changing according to at least one of a temperature and an aging characteristic of a battery supplying power to the mobile communication terminal, and estimating a power consumption of the mobile communication terminal and a battery drain rate based on the battery characteristic information and displaying estimated information.

Abstract: A method for allocating CDMA channels applicable to a mobile communication system that performs communication by using two or more CDMA channels, the method comprising: for each active sector corresponding to a particular mobile station, independently allocating CDMA channels (i.e., frequency assignments) such that each active sector is allocated at least one CDMA channel; and transmitting packet data by using the allocated CDMA channel.

Abstract: A source node includes a topology information extractor configured to acquire information of a channel state between nodes included in a multicast network, and extract topology information of the multicast network. The source node further includes a relay node selector configured to select, from the nodes, a relay node to relay a packet transmitted from the source node, based on the topology information.

Abstract: A method of transmitting a broadcast message using a Forward Common Control Channel (F-CCCH) in a wireless communication system is disclosed. More specifically, a base station determines whether a periodic enhanced broadcast page is enabled or disabled, and then transmits at least one broadcast message via a first slot of a broadcast paging cycle of the F-CCCH if determined that the periodic enhanced broadcast page is enabled.

Abstract: A method of generating a public long code mask (PLCM) in a mobile station in a wireless mobile communication network is provided. The method comprises receiving a message in the mobile station from a base station when the mobile terminal is handed off, the message comprising a first field including a first value, a second field including a second value, and a third field including least significant bits of the PLCM; and generating the PLCM using the least significant bits included in the third field.

Abstract: A method of providing a point-to-multipoint service in a mobile communication system and transmission controlling method thereof are disclosed, by which a better quality of a point-to-multipoint service can be provided in a manner of coping with time-variable channel situation variable adaptively. In a mobile communication system providing a point-to-multipoint service, the present invention includes the steps of receiving data for the point-to-multipoint service from a base station, measuring a reception quality for the received point-to-multipoint service data, and transmitting reception quality information for the point-to-multipoint service data to the base station.