摘要:
The invention relates to a method and apparatus for controlling a high voltage generator during wafer burn-in. The method includes generating an enable signal for enabling a high voltage generator responsive to a mode signal, e.g., a wafer burn-in test mode. The method provides an external voltage to a semiconductor memory device through a pad responsive to the enable signal. The method varies a high voltage level being output from the high voltage generator in response to a reference voltage level.
摘要:
A semiconductor memory device includes a cell array internal voltage generating circuit for generating cell array reference voltage and a cell array power voltage from a first external power voltage, a peripheral circuit internal voltage generating circuit for generating a peripheral circuit reference voltage and a peripheral circuit power voltage from the first external power voltage, and a voltage boosting circuit power voltage generating circuit for generating a voltage boosting circuit reference voltage and a voltage boosting circuit power voltage from a second external power voltage.
摘要:
A backlight assembly for a liquid crystal display device includes a bottom frame having an inner surface, printed circuit boards on the inner surface, and a plurality of light emitting diodes in rectangular-shaped clusters on each of the printed circuit boards, each of the light emitting diode clusters includes four light emitting diodes.
摘要:
A fuse circuit according to the present invention includes first and second fuses, each of which has a first end and a second end. The first and second ends of the first fuse are connected in a straight line. The first end of the second fuse is spaced by a first interval from the first end of the first fuse, and the second end thereof is spaced by a second interval from the second end of the first fuse. The first ends of the first and second fuses have the same widths as those of the second ends thereof. Alternatively, the first ends of the first and second fuses have narrower widths that those of the second ends thereof.
摘要:
The invention relates to a method and apparatus for controlling a high voltage generator during wafer burn-in. The method includes generating an enable signal for enabling a high voltage generator responsive to a mode signal, e.g., a wafer bum-in test mode. The method provides an external voltage to a semiconductor memory device through a pad responsive to the enable signal. The method varies a high voltage level being output from the high voltage generator in response to a reference voltage level.
摘要:
A wafer burn-in test circuit of a semiconductor memory device having a plurality of memory cells arranged in a row/column matrix, is provided, including:a sub word line driver connected to first and second word line groups each connected to true cells and complement cells forming the memory cells, and responding to a predecoded low address; and first and second power lines respectively supplying power to the corresponding first and second power line groups by a switching operation of the sub word line driver, wherein a ground power source is applied to the first and second power lines during a normal operation, and the ground power source and a step-up power source are alternately applied to the first and second power lines during a wafer burn-in test operation.
摘要:
A word line loading compensating circuit compensates a word line boosted voltage level changed in accordance with a word line loading. A word line boosting circuit outputs a word line boosted voltage boosted over a power supply voltage input from the exterior of a chip, so as to boost a voltage of the word line connected to the memory cell array. A row decoder is connected to the word line boosted voltage output from the word line boosting circuit and selects a memory cell from an array of memory cells in correspondence with a predetermined row address signal. A capacitor connected between the word line boosted voltage and the row decoder stores a charge from the word line boosted voltage. A variable connecting device connects the word line boosted voltage to the capacitor before the word line boosted voltage reaches a saturation level, and cuts off the word line boosted voltage from the capacitor after the word line boosted voltage reaches the saturation level. A delay device inputs the word line boosted voltage, delays the input word line boosted voltage during the arrival time of the saturation level, and generates a delay output signal which controls the variable connecting device. A discharging device is controlled by the delay output signal and discharges the charge stored in the capacitor to ground after the word line boosted voltage reaches the saturation level.
摘要:
An organic light emitting display device having an electrostatic capacitive type touch panel function with reduced thickness and improved luminance. A display panel of the organic light emitting display device includes a substrate, a display unit having a plurality of pixels on the substrate, and a touch sensing unit on the display unit. The touch sensing unit includes an encapsulation substrate and a capacitive pattern layer on a side of the encapsulation substrate facing the display unit. The capacitive pattern layer has a plurality of openings corresponding in position to the plurality of pixels.
摘要:
An ODT circuit is activated/deactivated in response to a latency control signal or a clock enable signal. The ODT circuit includes an ODT control circuit and an ODT section. The ODT control circuit determines an ODT status based on a read latency control signal (RL) and/or a write latency control signal (WL) to generate an ODT control signal. The ODT section is activated/deactivated in response to the ODT control signal.
摘要:
An organic light-emitting display apparatus includes a substrate including a plurality of red, green, and blue sub-pixel regions, a pixel electrode in each of the plurality of the red, green, and blue sub-pixel regions on the substrate, a Distributed Bragg Reflector (DBR) layer between the substrate and the pixel electrodes, a high-refractive index layer between the substrate and the DBR layer in the blue sub-pixel region, the high-refractive index layer having a smaller area than an area of a corresponding pixel electrode in the blue sub-pixel region, an intermediate layer including an emissive layer on the pixel electrode, and an opposite electrode on the intermediate layer.