Abstract:
A semiconductor device and its fabricating method are provided to selectively remove a portion of a liner nitride layer using one photoresist mask pattern, thereby forming a finFET which reduces the effect of a signal due to a gate line in a cell region. A substrate(10) having an isolation film defining active regions(20) is provided. A first active region is formed in a cell region, and is covered by a gate structure(40) which is filled in a partially removed portion of the isolation film. A second active region is formed in a core region, and is covered by the gate structure. The core region has a separated upper surface. A Ferrire region has a third active region in which a gate structure is positioned on the upper surface.
Abstract:
PURPOSE: A semiconductor device is provided to reduce the resistance of a word line and a gate induction drain leakage by a gate electrode pattern. CONSTITUTION: A substrate(110) has a trench(111) in an active area. A gate insulation layer(124) is formed in the trench. A gate electrode pattern(130a) is formed on the gate insulation layer and includes a first part which protrudes to the upper side of the substrate. A dielectric pattern is formed on the gate electrode pattern and fills the trench.
Abstract:
PURPOSE: A semiconductor device with a buried gate pattern including a high-k dielectric protection film pattern and a manufacturing method thereof are provided to form a low dielectric material film on a high dielectric material film to decrease electric fields in source/drain areas, thereby preventing leaked currents. CONSTITUTION: A gate trench is formed on a substrate(10). A buried gate electrode(16) partially fills the gate trench. A protection film pattern(20a) is formed in the gate trench. Source/drain areas(22,24) are formed under the surface of the substrate adjacent to both sides of the buried gate electrode. A gate insulating film(18a) is interposed between the trench and the buried gate electrode.
Abstract:
A method for manufacturing a semiconductor device for reducing a thermal budget to impurity regions of a peripheral circuit region is provided to improve characteristics of the semiconductor device by forming a peripheral transistor after performing a high-temperature process. A substrate(110) including a cell array region and a peripheral circuit region is prepared. The cell array region includes a cell activation region(112c). The peripheral circuit region includes peripheral activation regions(112a,112b). A cell gate pattern(126a) and a peripheral gate pattern(126b) are formed across the cell activation region and the peripheral activation region. A plurality of first cell impurity regions(130c) are formed in the cell activation regions of both sides of the cell gate pattern. A cell bottom interlayer dielectric(136) and a peripheral insulating layer are formed on the substrate in order to cover the cell array region and the peripheral circuit region, respectively. A plurality of cell conductive pads(144c) are formed through the cell bottom interlayer dielectric in order to be electrically connected with the first cell impurity regions. The peripheral insulating layer is removed to expose the peripheral activation regions of both sides of the peripheral gate pattern.