Abstract:
PURPOSE: An apparatus for spinning a wafer is provided to restrain damage of a wafer due to breakage of a bolt by improving tensile intensity and fatigue intensity of the bolt using SUS material. CONSTITUTION: An apparatus includes a spin chuck, a bolt, a connection pin, and a cap. The spin chuck(110) holds and rotates a wafer. The bolt connects the spin chuck with a driving shaft(150). The connection pin(160) is used for transmitting rotatory strength of the driving shaft to the spin chuck. The cap(130) covers the bolt to prevent corrosion due to chemicals. The connection pin and the cap are made of polypropylene or teflon. The bolt is made of SUS material.
Abstract:
PURPOSE: A MIM(Metal Insulator Metal) capacitor compatible to a dual damascene process and a method for manufacturing the same are provided to be capable of preventing the mass generation of polymers and the surface etching damage of a capacitor electrode by etching a barrier metal layer for the capacitor electrode by using a hard mask. CONSTITUTION: A MIM capacitor compatible to a dual damascene process is provided with a semiconductor substrate(200) having a copper line(210), a lower insulating layer(220) formed at the upper portion of the semiconductor substrate, a capacitor electrode(235) formed at the upper portion of the lower insulating layer, a hard mask(240) formed at the upper portion of the capacitor electrode, and an upper insulating layer(250) formed on the entire surface of the resultant structure. Preferably, a nitride layer is used as the upper and lower insulating layer.
Abstract:
본 발명의 저유전율 유전막을 식각하는 식각 용액은 저유전율 유전막을 산화시키는 산화제 및 산화물을 제거하기 위한 산화물 식각제를 포함하며, 이 같은 식각 용액을 사용하여 저유전율 유전막을 한 번의 공정으로 간단하게 제거할 수 있다. 저유전율 유전막, low-k, SiOC, 웨이퍼 재사용, 산화제
Abstract:
본 발명의 저유전율 유전막을 식각하는 식각 용액은 저유전율 유전막을 산화시키는 산화제 및 산화물을 제거하기 위한 산화물 식각제를 포함하며, 이 같은 식각 용액을 사용하여 저유전율 유전막을 한 번의 공정으로 간단하게 제거할 수 있다. 저유전율 유전막, low-k, SiOC, 웨이퍼 재사용, 산화제
Abstract:
본 발명은 세정 건조 방법에 관한 것이다. 본 발명에 의하면, 스핀척에 기판을 올려놓고 스핀척을 소정의 속도로 회전시킨 상태에서 화학세정용액을 기판 상에 공급하여 기판을 세정하고, 회전하는 기판에 린스액을 공급하여 기판을 린스하며, 물방울 형태로 뭉침 없이 기판의 전면적에 걸쳐 균일하게 퍼지는 건조액을 회전 중인 기판의 표면에 공급하면서 건조액이 공급된 부분부터 건조가스를 공급하여 기판의 표면을 건조시킨다. 이와 같이 건조액이 물방울 형태로 뭉침 없이 웨이퍼 상에 고르게 퍼져 있으면 건조가스에 의해 건조액이 완전히 건조되어 웨이퍼 상에 물반점이 발생되지 않는다.
Abstract:
PURPOSE: A method for preventing lifting of metal layer patterns is provided to reduce contamination due to the metal layer patterns by using a shielding layer for forming the metal layer patterns along an edge of a semiconductor substrate. CONSTITUTION: A semiconductor substrate(100) having a multi-layer is prepared. A photoresist layer(143,146) is formed on a surface of the semiconductor substrate. A shielding member(150) corresponding to an edge region of the semiconductor substrate is prepared at a predetermined position of an upper part of the semiconductor substrate before a photo exposure process is performed on the semiconductor substrate. A photo process and an etch process are performed by using the shielding member. The multi-layer is formed with an interlayer dielectric and a metal layer(120).
Abstract:
PURPOSE: An apparatus for supplementing wet etchant for extending an exchange period is provided to supply supplementary liquid without establishing an additional tube for the supplementary liquid. CONSTITUTION: An apparatus for supplementing wet etchant for extending an exchange period comprises a supplementary liquid storing receptacle(30) and a supply control unit. The supplementary liquid storing receptacle receives deionized water as the supplementary liquid flowing in a deionized water drain tube through a three-directional valve(20) and stores a constant quantity of the deionized water. The supply control unit supplies the deionized water stored in the supplementary liquid storing receptacle to a wet etchant bath(TA1) through a supplying tube in every predetermined interval of time.
Abstract:
비휘발성 메모리 장치에서의 자기정렬된 얕은 트렌치 소자분리 방법이 개시되어 있다. 반도체 기판의 상부에 터널 산화막층, 플로팅 게이트용 제1 폴리실리콘층 및 질화막층을 차례로 증착한다. 질화막층, 제1 폴리실리콘층 및 기판을 식각하여 트렌치를 형성한다. 결과물의 상부에 트렌치를 매립하도록 산화막을 증착하고, 질화막층까지 산화막을 제거하여 트렌치 소자분리 구조의 필드 영역을 형성한다. 질화막층을 제거한 후, 필드 영역을 습식 케미컬 처리한다. 결과물의 상부에 플로팅 게이트용 제2 폴리실리콘층을 증착한다. 제1 폴리실리콘층 위의 필드 영역이 포지티브 경사를 갖게 되어, 필드 영역의 하부에 도전성 잔류물이 생성되지 않는다.
Abstract:
PURPOSE: A method for manufacturing a floating gate of a non-volatile memory device is provided to reduce the recessed quantity of an anti-reflective coating(ARC) by 50 percent as compared with a conventional technology, by performing an HF cleaning process for eliminating a native oxide layer and other contamination materials after a heat treatment process is performed regarding the ARC at a temperature from 450 to 550 deg.C. CONSTITUTION: A gate electrode and the ARC are formed on a semiconductor substrate(41). A heat treatment process and a cleaning process are sequentially performed regarding the entire surface of the semiconductor substrate. A conductive layer spacer is formed on the side surface of the gate electrode.
Abstract:
PURPOSE: A wafer cleaning apparatus is provided to improve a wafer cleaning effect and prevent an interval of a fabricating time from being delayed by preventing a cleaning solution separated from a wafer from returning to the wafer. CONSTITUTION: A chamber(220) is surrounded by wall surfaces(225), and a cleaning process is performed on the wafer(50) in the chamber. A wafer holder(240) is formed in the chamber. The wafer is placed on the wafer holder. The wafer holder fixes the wafer and performs a horizontal rotation with respect to its center. A cleaning solution supplying unit(260) supplies a cleaning solution to the wafer, formed on the wafer holder. The upper part of the wall surface of the chamber is tilted in the central direction of the chamber at a predetermined angle.