Abstract:
반도체 장치 및 그 제조 방법이 제공된다. 상기 반도체 장치는 기판; 상기 기판 상에 형성되고, 서로 이격된 다수의 제1 반도체 패턴; 상기 다수의 제1 반도체 패턴의 측면과 상면을 따라서 컨포말하게 형성된 제2 반도체 패턴; 상기 제2 반도체 패턴 상에, 상기 다수의 제1 반도체 패턴 사이를 채우는 제3 반도체 패턴; 및 상기 다수의 제1 반도체 패턴 내지 상기 제3 반도체 패턴 상에 형성된 게이트 전극을 포함한다.
Abstract:
본 발명의 실시예에 따른 저항 스위칭 메모리 소자 제조 방법에 있어서, 반도체 기판 상에 하부 전극을 형성하는 단계; 상기 하부 전극 상에 저항층으로 사용되는 금속 산화막을 형성하는 단계; 및 상기 금속 산화막 상에 상부 전극을 형성하는 단계;를 수행하되, 상기 금속 산화막은, ultra-thin 박막으로 증착하고, 상기 ultra-thin 박막의 결함(defect)을 이용하여 저항 스위칭을 유발하는 저항 스위칭 단계;를 더 수행하는 것을 특징으로 한다.
Abstract:
PURPOSE: A method of manufacturing a ReRAM(Resistive Random Access Memory) device of a three-dimensional stacked memory type having an independent memory cell structure is provided to prevent cross talk between memory cells by insulating a gap between metal oxides having resistance switching characteristics. CONSTITUTION: A silicon substrate(10) is provided. An insulating material layer(20) is formed on the substrate. A bottom electrode layer(30) is formed on an upper portion of the insulating material layer. A metal oxide(40) is formed on the upper portion of the substrate. An upper electrode(50) is formed on the upper portion of a top insulating material layer.
Abstract:
PURPOSE: A method for manufacturing a flash memory device is provided to prevent the formation of an interfacial layer with a wide band-gap by forming a buffer film composed of Al2O3 between a tunnel dielectric film with a stacked structure and a high-k dielectric film. CONSTITUTION: A tunnel dielectric film(102) with a multilayer structure of a first dielectric film(102a), a buffer film(102b) and a high-k dielectric film(102c) is formed on a semiconductor substrate(100). A second dielectric film(104), a blocking film(106) and a conductive film(108) is formed on the tunnel dielectric film. A gate(112) is formed by etching the conductive film, the blocking film, the second dielectric film and the turner dielectric film. A Thermal process is performed after formation of the first dielectric film. The buffer layer is made of Al2O3. The first dielectric film is formed by a thermal oxidation process or a radical oxidation process.
Abstract:
PURPOSE: A method for manufacturing a flash memory device is provided to improve a retention property which a stored charge is released through tunnel dielectric film by forming a dual-structure tunnel dielectric film with a SiO2 film and a high-k dielectric film. CONSTITUTION: A dual-structure tunnel dielectric film(102) composed of a first dielectric film(102a) and a high-k dielectric film(102b) is formed on a semiconductor substrate(100). A second dielectric film(104), a blocking film(106) and a conductive film(108) are formed on the tunnel dielectric film. A gate(112) is formed by etching the conductive film, the blocking film, and the second dielectric film. The first dielectric film is formed with the thickness of 10Å to 40Å by using SiO2. The first dielectric film is formed by a thermal oxidation process or a radical oxidation process.
Abstract:
The present invention is to provide a method of fabricating a resistive random access memory (ReRAM), capable of controlling electrical characteristics by controlling the positions and the number of conductive filaments. The method includes the steps of: (a) preparing a substrate; (b) forming a lower electrode layer on the substrate; (c) forming a metallic oxide material representing resistive switching characteristics on the lower electrode layer; (d) forming a protective layer to protect the metallic oxide material and to form conductive filaments in required shape and required number on the metallic oxide material; (e) forming a protective layer having a pattern structure without a specific region of the protective layer by etching the protective layer up to the metallic oxide material through a photolithography process; (f) performing a metallic implantation process on an entire portion of the protective layer to locally form a region including a large quantity of metal in the metallic oxide material, corresponding to the patterned structure, thereby forming the conductive filaments; and (g) removing the protective layer having the patterned structure.
Abstract:
본 발명은 결함이 적은 고유전율 터널 절연막을 포함하는 플래시 메모리 소자 및 그 제조방법에 관한 것으로, 반도체 기판 상에 제 1 터널 절연막을 형성하는 단계; 상기 제 1 터널 절연막 상에 제 2 터널 절연막을 형성하는 단계; 상기 제 2 터널 절연막에 열공정을 통한 제 1 질화처리하는 단계; 상기 제 1 질화처리한 상기 제 2 터널 절연막에 열공정을 통한 제 2 질화처리하는 단계; 상기 제 2 터널 절연막 상에 전하 축적층을 형성하는 단계; 상기 전하 축적층 상에 블로킹 절연막을 형성하는 단계; 및 상기 블로킹 절연막 상에 게이트 전극층을 형성하는 단계;를 수행하는 것을 특징으로 한다.