Abstract:
A method of manufacturing a substrate using a carrier, that includes preparing a carrier having a releasing layer, and insulating layers and metal layers sequentially disposed on both sides of the releasing layer; patterning the metal layers to form base circuit layers; forming buildup layers on the base circuit layers; executing a routing process to separate the insulating layers from the releasing layer; and forming solder resist layers on the buildup layers and forming openings in the solder resist layers and the insulating layers to expose pads.
Abstract:
A method of manufacturing a substrate using a carrier, that includes preparing a carrier having a releasing layer, and insulating layers and metal layers sequentially disposed on both sides of the releasing layer; patterning the metal layers to form base circuit layers; forming buildup layers on the base circuit layers; executing a routing process to separate the insulating layers from the releasing layer; and forming solder resist layers on the buildup layers and forming openings in the solder resist layers and the insulating layers to expose pads.
Abstract:
The invention relates to a carrier used in the manufacture of a substrate and a method of manufacturing a substrate using the carrier, the method including (A) preparing a carrier comprising a releasing layer, and insulating layers and metal layers sequentially disposed on both sides of the releasing layer; (B) patterning the metal layers to form base circuit layers; (C) forming buildup layers on the base circuit layers; (D) executing a routing process to separate the insulating layers from the releasing layer; and (E) forming solder-resist layers on the buildup layers and forming openings in-the solder-resist layers and the insulating layers to expose pads.
Abstract:
Disclosed herein is a printed circuit board, including: metal bumps having constant diameters and protruding over an insulation layer; a circuit layer formed beneath the insulation layer; and vias passing through the insulation layer to connect the metal bumps with the circuit layer.
Abstract:
A method of manufacturing a printed circuit board, including: providing a metal layer; forming an insulation layer on the metal layer and then forming via holes for exposing the metal layer in the insulation layer; forming vias charged in the via holes and a circuit layer on the insulation layer; and forming metal bumps at ends of the vias.
Abstract:
A method for transmitting a transport block includes segmenting the transport block into code blocks corresponding in number to a multiple of the number of layers to be used for the transmission of the transport block, attaching a Cyclic Redundancy Check (CRC) to the segmented code blocks, sequentially mapping the code blocks to which the CRC has been attached to at least one layer according to a predetermined mapping rule, and transmitting the code blocks.
Abstract:
A method of transmitting data in a wireless access system is disclosed. The method includes various processes of obtaining the number of code blocks in consideration of an error detection code which is to be attached to each code block, calculating the size of the code blocks, segmenting input data, and channel-coding the code blocks, thereby efficiently transmitting data.
Abstract:
A dual mode terminal for providing location-based services is provided. The dual mode terminal includes a first area including a first wireless communication unit for communication with a first communication network and a first processor for processing signals transmitted and received to and from the first communication network, and a second area including a second wireless communication unit for communication with a second communication network and a second processor for processing signals transmitted and received to and from the second communication network. The first wireless communication unit includes a GPS receiver for receiving satellite GPS signals. The first processor includes a GPS engine for processing network location information received from the first communication network and the second communication network, and the second processor transfers network location information received from the second communication network to the first processor.
Abstract:
A method for transmitting a transport block includes segmenting the transport block into code blocks corresponding in number to a multiple of the number of layers to be used for the transmission of the transport block, attaching a Cyclic Redundancy Check (CRC) to the segmented code blocks, sequentially mapping the code blocks to which the CRC has been attached to at least one layer according to a predetermined mapping rule, and transmitting the code blocks.
Abstract:
This invention relates to a method of fabricating a paste bump for a printed circuit board, which can decrease the number of printings to thus reduce the fabrication cost and process time in the formation of the paste bump on the printed circuit board.