摘要:
Disclosed is a method for manufacturing a semiconductor device including a low-voltage MOS transistor and a high-voltage MOS transistor. The present method includes a low-voltage well implantation process on a semiconductor substrate to form a first well in a first region of the substrate and a second well in a second region of the substrate; forming first and second gate oxide layers and first and second gate electrodes in the first and second regions, respectively; forming a first photoresist pattern to expose the first region; forming a first LDD region in the first region exposed by the first photoresist pattern and the first gate electrode; removing the first photoresist pattern; forming a second photoresist pattern to expose the second region; forming a second LDD region in the second region exposed by the second photoresist pattern and the second gate electrode; performing a compensational implantation on the second region to adjust a well concentration for the high-voltage MOS transistor; and removing the second photoresist pattern.
摘要:
A static electricity preventing assembly for an electronic device, may include a substrate, a buffer layer on the substrate, the buffer layer including a plurality of contact holes exposing respective regions of the substrate, a shorting bar on the buffer layer, pad electrodes on the buffer layer, metal wiring lines on the buffer layer, wherein a first portion of each of the metal wiring lines may be electrically connected to the substrate through the contact holes, a second portion of each of the metal wiring lines may be connected to a respective one of the pad electrodes, and a third portion of each of the metal wiring lines may be connected to the shorting bar, wherein the first portion may be between the second portion and the third portion.
摘要:
A polysilicon thin film transistor (TFT) may include a substrate, at least one insulating layer, a semiconductor layer, a gate electrode, a source electrode, a drain electrode, and a heat retaining layer formed to contact the semiconductor layer. The heat retaining layer may reduce and/or prevent a reduction in a melt duration time of amorphous silicon during a crystallization process for forming a polysilicon layer of the TFT.
摘要:
The flat panel display includes an electrochromic device that is a controlling unit. The electrochromic device reversibly makes electrolytic oxidizing and reducing reactions so that coloring and decoloring can be made reversibly, when voltage is applied. With such the construction, the flat panel display controls the voltage applied to the electrochromic device, enabling to selectively display an image on front side or two sides.
摘要:
A method of fabricating a CMOS (complementary metal oxide semiconductor) transistor includes manufacturing steps, by which adverse transistor characteristics can be prevented from being degraded by high-temperature annealing for hardening a screen oxide layer. The method includes steps of forming a gate on a semiconductor substrate with a gate oxide layer therebetween, forming a screen oxide layer on the substrate and the gate, forming a nitride layer on the screen oxide layer, forming LDD regions in the substrate substantially aligned with the gate, removing the nitride layer, forming a spacer on the screen oxide layer and on at least a portion of a sidewall of the gate, and forming in the substrate source/drain regions extending from the LDD regions respectively in the substrate substantially aligned with the spacer.
摘要:
An Organic Light Emitting Display (OLED) and its method of fabrication includes: a transparent substrate; a photochromatic layer formed on a first surface of the transparent substrate; at least one transparent Thin Film Transistor (TFT) formed on a first surface of the transparent substrate, and an organic light emitting device formed on and electrically connected to the transparent TFT.
摘要:
A thin film transistor and a method for manufacturing the same capable of reducing a change in a threshold voltage of the thin film transistor formed on a flexible substrate. The thin film transistor includes: a substrate, the substrate being flexible; a buffer layer having a low dielectric constant from about 1.2 to about 4.0 and formed on the substrate; a semiconductor layer formed on the buffer layer; a gate electrode; first insulation layer formed between the gate electrode and the semiconductor layer; a second insulation layer formed on the semiconductor layer and the gate electrode; and a source/drain electrode electrically connected to the semiconductor layer through a contact hole formed in the second insulation layer. Therefore, the thin film transistor can reduce a change in its threshold voltage, thereby reducing changes in brightness, gray scale, contrast, etc., of light-emitting devices using the thin film transistor.
摘要:
Provided is a vertical semiconductor light-emitting device and a method of manufacturing the same. The method may include sequentially forming a lower clad layer, an active layer, and an upper clad layer on a substrate to form a semiconductor layer and forming first electrode layers on the upper clad layer. A metal support layer may be formed on each of the first electrode layers and a trench may be formed between the first electrode layers. The substrate may be removed and a second electrode layer may be formed on the lower clad layer.
摘要:
Provided are a method of forming an oxide thin film and an electrical device and thin film transistor using the method. The method includes forming an oxide thin film on a substrate by applying a precursor solution; and performing a thermal treatment process on the substrate under a pressurized atmosphere using a gas at about 100° C. to about 400° C.
摘要:
In a DRAM cell, as a word line signal is applied to a gate of a MOS transistor, the MOS transistor writes the voltage applied to bit lines BL and BL into a capacitor. When a high level data is written, a voltage of the bit line BL or BL is increased to be higher than a power supply voltage, so as to permit reading of the data in a stable condition. When a capacitance value of the cell is the same as that of the conventional art, a refresh time of the present semiconductor memory, e.g., DRAM memory, is lengthened over that of the conventional art, whereas when the refresh time is the same as that of the conventional art, the capacitance value used in the present semiconductor memory can be reduced from that of the conventional art.