Abstract:
A method for adjusting a beam pattern in a beam pattern adjusting apparatus in a communication system supporting a Beam Division Multiple Access (BDMA) scheme is provided. The method includes determining whether a Voltage Standing Wave Ratio (VSWR) value for each antenna included in an antenna array included in the beam pattern adjusting apparatus is greater than or equal to a threshold VSWR value, if it is determined that an antenna of the antenna array has a VSWR value that is greater than or equal to the threshold VSWR, detecting whether each of the antenna elements is operable, and if it is determined that at least one of the antennas is inoperable, adjusting a beam pattern of at least one of the antennas that is operable.
Abstract:
A package stack structure may an upper package include an upper package substrate having a first edge and a second edge opposite to the first edge. The upper package substrate has a first region arranged near the first edge and a second region arranged near the second edge. A first upper semiconductor device is mounted on the upper package substrate. The package stack structure may also include a lower package having a lower package substrate and a lower semiconductor device. The lower package is connected to the upper package through a plurality of inter-package connectors. The plurality of the inter-package connectors may include first inter-package connectors configured to transmit data signals; second inter-package connectors configured to transmit address/control signals; third inter-package connectors configured to provide a supply voltage for an address/control circuit; and fourth inter-package connectors configured to provide a supply voltage for a data circuit.
Abstract:
A circuit board is provided including a core insulation film having a thickness and including a first surface and an opposite second surface, an upper stack structure and a lower stack structure. The upper stack structure has a thickness and has an upper conductive pattern having a thickness and an overlying upper insulation film stacked on the first surface of the core insulation film. The lower stack structure has a thickness and has a lower conductive pattern having a thickness and an overlying lower insulation film stacked on the second surface of the core insulation film. A ratio P of a sum of the thicknesses of the upper conductive pattern and the lower conductive pattern to a sum of the thicknesses of the core insulation film, the upper stack structure and the lower stack structure is in a range from about 0.05 to about 0.2.
Abstract:
A semiconductor package having a structure in which a decoupling capacitor is disposed to be adjacent with a semiconductor chip using a vertical chip interconnection (VCI) to improve power integrity. The semiconductor package includes a semiconductor substrate including a first finger pad and a second finger pad, a semiconductor chip mounted on the semiconductor substrate and including a first chip pad and a second chip pad, a bonding tape electrically connecting the first finger pad and the first chip pad, and a bonding wire electrically connecting the second finger pad and the second chip pad. Here, the bonding tape is formed to make contact with a sidewall of the semiconductor chip in a vertical direction of the semiconductor chip.
Abstract:
A semiconductor device, a semiconductor package, and an electronic device are provided. The electronic device includes a first semiconductor package disposed on a circuit substrate. A second semiconductor package is provided on the circuit substrate and spaced apart from the first semiconductor package. An insulating electromagnetic shielding structure is provided on the top and the lateral surfaces of the first semiconductor package. A conductive electromagnetic shielding structure is provided on the circuit substrate to cover the first and second semiconductor packages and the insulating electromagnetic shielding structure.
Abstract:
A semiconductor chip including a substrate, a first data pad arranged on the substrate, and a first control/address pad arranged on the substrate, wherein the first data pad is arranged in an edge region of the substrate, and the first control/address pad is arranged in a center region of the substrate.
Abstract:
A method for adjusting a beam pattern in a beam pattern adjusting apparatus in a communication system supporting a Beam Division Multiple Access (BDMA) scheme is provided. The method includes determining whether a Voltage Standing Wave Ratio (VSWR) value for each antenna included in an antenna array included in the beam pattern adjusting apparatus is greater than or equal to a threshold VSWR value, if it is determined that an antenna of the antenna array has a VSWR value that is greater than or equal to the threshold VSWR, detecting whether each of the antenna elements is operable, and if it is determined that at least one of the antennas is inoperable, adjusting a beam pattern of at least one of the antennas that is operable.
Abstract:
Provided is a method in which a Digital Pre-Distorter (DPD) performs digital pre-distortion on a received In-phase (I) signal, a received Quadrature-phase (Q) signal, a feedback I signal, and a feedback Q signal; a mixer mixes a signal output from the DPD with a frequency signal output from an oscillator; each of n phase shifters phase-shifts a signal output from the mixer according to a preset beamforming pattern; each of n Power Amplifiers (PAs) amplifies a signal output from an associated phase shifter according to a gain, the PAs connected to the associated phase shifter on a one-to-one basis; each of n envelope detectors detects an envelope signal from a signal output from an associated PA, the envelope detector connected to the associated PA on a one-to-one basis; and a control unit determines whether the n PAs operate normally, using the envelope signals output from the n envelope detectors.