摘要:
The present invention relates to bacteria which specifically target infarcted tissue and use thereof. The present invention provides a selective infarcted tissue-targeting bacterium for the first time, and can be used in selectively delivering drugs to the infarcted tissue or in selectively imaging the infarcted tissue. The infarcted tissue-targeting bacterium of the present invention can finish treatments by using antibiotics, and therefore, have remarkable advantages as compared to gene therapy using recombinant viruses. The infarcted tissue-targeting bacterium of the present invention have a significantly high affinity and specificity to infarcted myocardium or infarcted brain, thereby significantly reducing undesired transfections in the organs or tissues other than the heart. The gene expression by the infarcted tissue-targeting bacterium of the present invention in infarcted myocardium or infarcted brain is remotely controllable.
摘要:
An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of the resistor-ladder network comprises an input end and an output end. The input end of each resistor is coupled to a corresponding bit signal of the multi-bit input signal, and the output end of each resistor is coupled to an output node of the resistor-ladder network. An output voltage is generated at the output node that is based on the multi-bit input signal. In one exemplary embodiment, the multi-bit input signal is a sigma-delta (ΣΔ) modulated multi-bit input signal. In another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are related by a binary weighting. In still another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are substantially equal.
摘要:
A semiconductor memory device includes a plurality of memory blocks configured to include memory cells, a voltage supply circuit configured to supply an erase voltage for an erase operation of a memory block selected from the memory blocks and supply an erase verify voltage and an erase pass voltage for an erase verify operation of the memory block selected from the memory blocks, and a control logic configured to group word lines per specific word lines, when the erase verify operation for the selected memory block is performed, and control the voltage supply circuit so that one or more of the erase verify voltage and the erase pass voltage rise whenever the erase verify operation is performed.
摘要:
Discussed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer includes Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu2Se nanoparticles and (In,Ga)2Se3 nanoparticles on the rear electrode, and heating the treated electrode with the ink. Since Cu(In,Ga)Se2 (CIGS) thin film is formed using the ink containing nanoparticles, a simple process is used without requirement of vacuum processing or complex equipment and particle size of the thin film, Ga doping concentration, etc., can be easily regulated.
摘要:
A semiconductor device including a metal-insulator-metal (MIM) capacitor is manufactured such that a via for connecting upper and lower conductive layers is formed through an insulating interlayer after a silicon nitride layer is deposited as a thick layer on the insulating interlayer. This protects an edge of a MIM structure during an etching process that forms the via. In addition, a fluorine gas can be used in a gas stripping process to remove a polymer residue when stripping the photoresist used to form the via. The MIM capacitor has an insulator layer. The method of manufacturing the device includes forming an insulator layer of the MIM capacitor to a predetermined thickness on the insulating interlayer. The predetermined thickness is equal to the desired thickness plus an augmentation thickness, and the augmentation thickness is determined according to the stripping process for removing the photoresist pattern.
摘要:
An STN LCD driver using a circuit with a reduced number of capacitors for driving voltage stabilization, and a method therefor, are provided. The STN LCD driver includes a driving voltage generating circuit, a common/segment driving circuit, first through third capacitors, and a control circuit. The driving voltage generating circuit generates first through fifth driving voltages to output the generated driving voltages via first through fifth output terminals. The common/segment driving circuit, which is controlled by a driving polarity signal, receives the first through fifth driving voltages and generates a common driving signal and a segment driving signal. The first capacitor is connected between the first output terminal and a ground voltage. The control circuit controls connection of the output terminals and the capacitors in response to the driving polarity signal, in order to reduce the number of the capacitors for driving voltage stabilization.
摘要:
Provided are a semiconductor memory device has improved read disturbance characteristics as well as improved retention characteristics at a high temperature, and a reading method thereof. The non-volatile semiconductor memory device includes at least one bit line; and a cell string configured to be coupled with the bit line respectively, and include normal memory cells and dummy memory cells that are alternately coupled with each other, where normal data are programmed and read to and from the normal memory cells, and dummy memory cells are programmed with dummy data.
摘要:
An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of the resistor-ladder network comprises an input end and an output end. The input end of each resistor is coupled to a corresponding bit signal of the multi-bit input signal, and the output end of each resistor is coupled to an output node of the resistor-ladder network. An output voltage is generated at the output node that is based on the multi-bit input signal. In one exemplary embodiment, the multi-bit input signal is a sigma-delta (ΣΔ) modulated multi-bit input signal. In another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are related by a binary weighting. In still another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are substantially equal.
摘要:
A semiconductor memory device includes a memory string coupled to a bit line, a page buffer configured to sense a sensing current of the bit line in an erase verification operation or a program verification operation, and a sensing control circuit configured to differently set a level of the sensing current in the erase verification operation and the program verification operation in order to sense the threshold voltage level of a selected memory cell of the memory string.
摘要:
A semiconductor memory device and a method of operating the same include a circuit group configured to apply a program maintaining voltage between the program prohibition voltage and the program permission voltage to bit lines connected to programmed memory cells to prevent a decrease in threshold voltage.