Abstract:
A semiconductor element is provided. A first gate dielectric layer, a first bottom gate electrode, and a first top gate electrode are stacked on the first region of a substrate in order. A second gate dielectric layer, a second bottom gate electrode, and a second top gate electrode are stacked on the second region of the substrate in order. A fist spacer and a third spacer which cover the side wall of the first top gate electrode in order are provided, and a second spacer and a fourth spacer which cover the side wall of the second top gate electrode in order are provided. The side wall of the first bottom gate electrode is in contact with the third spacer.
Abstract:
PURPOSE: Semiconductor devices with MOS transistors which optimized channel regions and manufacturing methods thereof are provided to form an upper semiconductor pattern by a silicon film and form a lower semiconductor pattern by a silicon-germanium film, thereby reducing the threshold voltage of a PMOS transistor. CONSTITUTION: A semiconductor device is formed on a fixed area of a semiconductor substrate and includes a device separation film(14) which defines an active area. The active area includes an inclined edge surface(9e). A semiconductor epitaxial pattern is covered on the upper center and the edge of the active area. A gate pattern crosses the upper part of the semiconductor epitaxial pattern.
Abstract:
PURPOSE: A semiconductor device is provided to minimize the increase of a threshold voltage in a semiconductor device by minimizing the non-uniformity of the concentration of a diffusion control element within a channel region. CONSTITUTION: An element isolation pattern defining an active part(103) is formed within a substrate(100). A gate pattern(120) extended across the active part in a second direction is formed on the substrate. The gate pattern includes an inheritance pattern(121a), a first conductive pattern(123a), and a second conductive pattern(125a). A pair of doped regions(107) separated from each other are formed within the active part. An injection region(105) of a diffusion control element is formed within an upper region of the active part.
Abstract:
PURPOSE: A semiconductor device and a manufacturing method thereof are provided to eliminate a remaining part of a diffusion film, thereby improving working speed of a transistor. CONSTITUTION: A gate insulating film including high dielectric materials is arranged on a substrate(100) which includes a first region(I) and a second region(II). A diffusion barrier film including a first metal is arranged on the second region of the gate insulating film. A diffusion film is arranged on the gate insulating film and the diffusion barrier film. The components of the diffusion film are diffused to the first region of the gate insulating film. A remaining portion of the diffusion film is removed. A gate electrode film which includes a second metal is arranged on the diffusion barrier film and the gate insulating film.