Abstract:
특성 및/또는 신뢰성이 향상된 트랜지스터가 제공된다. 트랜지스터는 채널 영역 상에 형성된 다층 유전체막으로, 다층 유전체막 전체 두께의 1/2 이상의 두께를 가지고 금속산화물, 금속 실리케이트, 알루미네이트 또는 이들의 혼합물로 이루어진 하부 유전체막과 하부 유전체막 상에 형성되고 3족 금속 산화물, 3족 금속 질화물, 13족 금속 산화물 또는 13족 금속 질화물로 이루어진 상부 유전체막을 구비하는 다층 유전체막 및 다층 유전체막상에 형성된 게이트 전극을 포함한다. 트랜지스터의 제조 방법 또한 제공된다. 다층 유전체막, 다층 게이트 전극, 금속 실리케이트, 3족 금속 산화물, 문턱 전압
Abstract:
A semiconductor device having different gate structures according to channel types and a manufacturing method thereof are provided to optimize a threshold voltage by using a heterogeneous metal gate electrode structure. A channel region(12) is formed on a semiconductor substrate(10). A gate insulating layer(20A) including a high dielectric layer(24) is formed on the channel region. A gate(30A) is formed on the gate insulating layer. The gate is composed of a doped metal nitride layer(32) including a first and second metal layers and a conductive polysilicon layer(38). The first and second metal layers are composed of a nitride of a first metal and a second metal different from the first metal. The gate further includes a capping layer(34) including metal which is inserted between the doped metal nitride layer and the polysilicon layer.
Abstract:
감소된 불순물을 갖는 고유전막의 제조방법이 제공된다. 이 방법은 반도체기판 상에 원자층 증착법을 사용하여 제1 유전막 및 제2 유전막으로 이루어진 적층 유전막을 형성하는 것을 구비한다. 상기 제1 유전막은 금속 유전막으로 형성되고, 상기 제2 유전막은 실리콘 산화막 또는 실리콘 산질화막으로 형성된다. 상기 적층 유전막에 대하여 후처리를 수행한다. 상기 적층 유전막을 형성하는 것과 상기 적층 유전막에 대한 후처리를 적어도 1회 반복한다. ALD, impurity, Hf, silicate
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: An n type field effect MOS transistor and a manufacturing method thereof are provided to have high drain saturation current and increase the operation speed. CONSTITUTION: A gate structure is included on a substrate(100). The gate structure includes a gate oxide pattern and a gate electrode. A spacer(108) is included on the side wall of the gate structure. The n type impurity is injected under the surface of both sides of the gate structure.
Abstract:
PURPOSE: A semiconductor device and a method for forming the same are provided to reduce a leakage current of the semiconductor device by preventing the crystallization of a dielectric layer. CONSTITUTION: A first dielectric layer(24) is formed on a substrate(10). A second dielectric layer(26) is formed on the first dielectric layer. The first dielectric layer has the lower film carbon concentration than the second dielectric layer. A third dielectric layer is formed on the second dielectric layer. The third dielectric layer has the lower film carbon concentration than the second dielectric layer.
Abstract:
PURPOSE: A TEG(Test Element Group) pattern for detecting a void inside an isolation film and a forming method thereof are provided to detect a conductive void through a conductive path by forming a contact in an active region and an isolation film of a TEG pattern. CONSTITUTION: A TEG pattern for detecting a leakage current due to a void inside an isolation film includes an active region, an isolation film, a first contact, and a second contact. The active region(102a,102b) is repetitively extended into a first direction. The isolation film(120) isolates the active region. The first contact(142a) is positioned in the active region adjacent to the isolation film and one surface of the isolation film. The second contact(142b) is positioned in the active region adjacent to the isolation film and the other surface of the isolation film.