Abstract:
본발명은듀얼게이트반도체장치의제조방법에관한것으로, 서로다른문턱전압을가지는소자들이각각형성될제1 영역및 제2 영역을가지는기판상에게이트절연막, 제1 캡핑(capping)층및 배리어(barrier)층을순차적으로형성하고, 제1 영역상에형성된제1 캡핑층과배리어층을제거하여제1 영역상에형성된게이트절연막을노출시키며, 제1 영역상에형성된게이트절연막과제2 영역상에형성된배리어층의상부에제2 캡핑층을형성하고, 제2 캡핑층이형성된기판을열처리하여, 제2 캡핑층및 제1 캡핑층에포함된물질들을각각제1 영역상에형성된게이트절연막및 제2 영역상에형성된게이트절연막으로확산시킨다.
Abstract:
PURPOSE: A method for manufacturing a semiconductor device using an etching stop insulating layer is provided to secure a sufficient etching margin. CONSTITUTION: An inter-layer insulating film including a first and a second trench is formed(S20). A gate insulating layer is formed along the upper side of the inter-layer insulating film, a lateral and a bottom surface of the first trench and a lateral and a bottom surface of a second trench(S30). An etching stop insulating layer is formed on the gate insulating layer(S40). A first metal layer is formed in order to bury the first and the second trench(S50). The first metal layer is removed by using the etching stop insulating layer as an etch stopping layer(S60). [Reference numerals] (S10) Providing a board defined in a first and a second area; (S20) Forming a layer insulating film including a first and a second trench individually formed at a first and a second area; (S30) Forming a gate insulating film; (S40) Forming an etching stop insulating film; (S50) Forming a first metal film in order to bury a first and a second trench; (S60) Removing a first metal film of a first area by using an etching stop insulating film as an etching stop film
Abstract:
PURPOSE: A method for manufacturing a semiconductor device using a metal aluminum nitride is provided to easily secure the space for subsequent processes within a trench by controlling the composition ratio of a film using one film. CONSTITUTION: A substrate(2) includes a first area(I) and a second area(II). An interlayer insulating film(3) including a first trench(8) and a second trench(9) is formed on the substrate. A first gate insulating film(201) is formed on the upper surface of the interlayer insulating film. A work function controlling film(203) is formed on the first gate insulating film. A first metal gate electrode is formed to fill the first trench. A second metal gate electrode is formed to fill the second trench.
Abstract:
PURPOSE: A semiconductor device and a fabrication method thereof are provided to obtain gate metal of a desired work function by performing a first isotropic doping process for a first gate surface with conformal impurity. CONSTITUTION: A substrate and a first and second active pin are provided(S100). A first gate metal of a first work function is formed on the first and second active pin(S130). A first mask film is formed(S140). The first mask film exposes the first gate metal of the first active pin. The first mask film covers the first gate metal of the second active pin. A first conformal doping process of first impurity is performed(S150). [Reference numerals] (AA) Start; (BB) End; (S100) Providing a substrate and first and second active pins; (S110) Forming source and drain regions; (S120) Forming a gate insulating layer; (S130) Forming a first gate metal; (S140) Forming a first mask film; (S150) Performing a first conformal doping process
Abstract:
고유전막과 식각 선택비를 가지고, 상기 고유전막의 조성을 변화시켜 문턱전압을 조절하는 캡핑막을 식각 대상막으로 하는 식각액은 0.01에서 3wt%의 산, 10wt%에서 40wt%의 불화염 및 용매를 포함한다. 상기 식각액을 사용하면, 고유전막의 데미지가 거의 발생되지 않아 우수한 특성의 고유전막을 형성할 수 있다.
Abstract:
PURPOSE: A complementary metal oxide semiconductor device having a metal gate stack structure is provided to prevent damage to a high dielectric layer in a manufacturing process by including a barrier metal gate including a metal oxide nitride layer. CONSTITUTION: In a complementary metal oxide semiconductor device having a metal gate stack structure, a semiconductor substrate(100) comprises an NMOS region(201) and a PMOS region(202). The NMOS region and PMOS region are separated by an element separation layer. An NMOS metal gate stack structure(310) and a PMOS metal gate stack structure(330) are formed in an NMOS region and a PMOS region respectively. The NMOS metal gate stack structure includes a first dielectric layer(116), a first lower barrier metal gate(118), and a first upper barrier metal gate(160). The PMOS metal gate stack structure includes a second dielectric layer(120), a second lower barrier metal gate(120), and a second upper barrier metal gate(160).
Abstract:
PURPOSE: A semiconductor device and a method for manufacturing the same are provided to form layers with different physical and/or electrical properties without forming an additional layer. CONSTITUTION: A gate dielectric layer(145) including a plurality of elements is formed on a substrate(110). A specific element is supplied to the gate dielectric layer. A product is formed by reacting the specific element and one element from the elements of the gate dielectric layer. The product is removed.