Abstract:
An integrated circuit device having a first type of pads with a probing portion and a bonding portion. The integrated circuit device includes a memory cell array, a logic circuit, and a plurality of the first type of pads and a plurality of a second type of pads. The second type of pads are electrically connected to the logic circuit. The first type of pads are electrically connected to the memory cell array and the logic circuit. Only the probing portion of the first type of pads is contacted by probes during testing of the memory cell array, and the bonding portion is used exclusively for attachment of a bond wire to permit connection to an external system.
Abstract:
An optical interconnection structure between an optoelectric device and a single mode optical fiber for enlarging an alignment tolerance is provided. The optical interconnection structure is constituted by a microlensed optoelectric device and a graded index fiber ended single mode optical fiber. Light beams emitted from the optoelectric device are collimated by the microlens on the rear surface of a substrate or are enlarged in size by being focused or diverged. The extended output light travels a predetermined distance and then reaches the graded index fiber ended single mode optical fiber. When the length of the graded index optical fiber lens is appropriate, the incident extended beams are again focused by the lens, and thus enter into the single mode optical fiber while maintaining a great coupling efficiency. The optoelectric device and the microlens are integrated by the photolithography process, such that alignment with respect to all elements within a substrate is accomplished. Thus, there is no need to make optical alignment for each single element, resulting in the possibility of mass production. Since the graded index optical fiber lens and the single mode optical fiber have the same diameter and the same circular shape, so that they are easily aligned automatically and mechanically stable.
Abstract:
A method for manufacturing a semiconductor device, e.g., an LDD transistor, which includes the steps of forming a gate insulating layer on a semiconductor substrate, forming a polysilicon layer on the gate insulating layer, forming a silicide layer on the polysilicon layer, etching the silicide layer to form a gate-patterned silicide layer, and over-etching the silicide layer to partially etch the polysilicon layer, to thereby form a step in the polysilicon layer, forming an oxidation-prevention spacer on sidewalls of the gate-patterned silicide layer and sidewalls of the polysilicon layer exposed by the step, etching the polysilicon layer, using the oxidation-prevention spacer as an etching mask, to thereby form a gate-patterned polysilicon layer, the gate-patterned silicide layer and the gate-patterned polysilicon layer together comprising a gate electrode, thermally oxidizing exposed portions of the gate insulating layer and exposed portions of the polysilicon layer, to thereby form an oxide layer, and, ion-implanting impurities into the semiconductor substrate, using the resultant structure as an ion-implantation mask, to thereby form source/drain regions in the semiconductor substrate, on opposite sides of the gate electrode.
Abstract:
Apparatus and methods for detecting a lock in a phase-locked loop (PLL) are disclosed. In one aspect, a lock detect component includes a reference multiplier and a lock detect. The reference multiplier can receive a reference signal, a divider signal, and a voltage-controlled oscillator (VCO) output generated by a VCO in a PLL from which the divider signal is generated. The reference multiplier can also generate a multiplied reference signal using the reference signal and the VCO output. The multiplied reference signal can have a frequency that is an integer multiple of a frequency of the reference signal. The lock detect can detect a phase lock of the reference signal and the divider signal based at least in part on comparing a signal generated from a delayed reference signal and a signal generated from a delayed divider signal for a predetermined period of time.
Abstract:
A base station antenna device containing a transmission and reception module is provided, which includes at least one antenna element configured to transmit and receive RF signals; the transmission and reception module configured to be connected to the antenna element and to form transmission and reception paths for the RF signals; a digital control module configured to digitally control the RF signals transmitted and received by the antenna element by transmitting digital control signals to the transmission and reception module; and a power supply configured to supply operating power to the transmission and reception module and the digital control module.
Abstract:
An audio amplifier includes a compensation unit, an output unit and a calibration unit. The compensation unit generates a compensation signal based on a digital input signal, a digital reference code, a mode signal and a digital approximation code. The output unit generates an output signal based on the compensated input signal. The calibration unit generates the digital approximation code based on the output signal and the mode signal. The digital approximation code includes a plurality of bits that are generated sequentially.
Abstract:
A mobile terminal includes a front body, a rear body, and a slide module connecting the front body to the rear body such that the front body is slidable with respect to the rear body, the slide module including a first slide member fixed to a front surface of the rear body and having a rail unit at both sides of the rear body, the rail unit having a specific length corresponding to a slide stroke of the front body; and a second slide member fixed to a rear surface of the front body and having a moving guide constrained to the rail unit at both sides of the rear body and slidably moved along the rail unit, in which the moving guide protrudes toward the rear body in order to receive the rail unit and cover the rail unit.
Abstract:
Apparatus and method for reproducing a MIDI-based music file are provided. According to the apparatus and method, a plurality of notes and note reproduction times are extracted from the MIDI file, a section where envelope values of sound source samples exponentially reduce is changed into a linear section, and the sound source samples are outputted according to the note reproduction times by reflecting the slope of the linear section.
Abstract:
Provided is a portable apparatus for recognizing and storing taste/odor, and a method thereof. The apparatus, includes: a sensor for recognizing taste/odor information by using at least one sensor and modulating the taste/odor information into an electrical signal; a control unit for transforming the recognized taste/odor information into a standardized format to record the taste/odor information in a storage; a storage for storing the standardized taste/odor information by control of the control unit; an input/output interface for transmitting the stored taste/odor information to outside; and a power source for supplying power to each constituent element.
Abstract:
A light emitting device is closed. More particularly, a light emitting device capable improving light-extraction efficiency is disclosed. The light emitting device includes a plurality of layers including a reflector layer. The reflector layer has the maximum reflectivity at an incidence angle more than zero degrees and less than an angle θ. The angle θ is represented by the equation θ=Sin−1[n2/n1] (where, n1 is the maximum refractive index of the plurality of layers constituting the light emitting device, and n2 is the refractive index of an external background material).