Abstract:
PURPOSE: A charge storage layer, a forming method thereof, a nonvolatile memory device thereof, and a manufacturing method thereof are provided to easily control the density and size of the charge storage layer of a nonvolatile memory device. CONSTITUTION: A tunneling oxide film(11) is formed on the semiconductor substrate. The charge storage layer is discontinuously formed on the tunneling oxide film and includes at least two dissimilar metal nano crystals. A control oxide film(13) is formed on the metal nano crystal of the charge storage layer and the tunneling oxide film. A control gate(14) is formed on the control oxide film.
Abstract:
본 발명은 밀도 및 크기를 용이하게 조절할 수 있는 나노 크기의 나노 크리스탈을 고온의 열처리 공정 없이 마이셀을 이용하여 합성하여, 비휘발성 메모리 장치의 플로팅 게이트로 사용할 수 있도록 하는 플로팅 게이트 형성 방법, 이를 이용한 비휘발성 메모리 장치 및 그 제조 방에 관한 것이다. 이러한, 본 발명은 반도체 기판 상에 플로팅 게이트를 형성하는 방법은, 반도체 기판 상에 터널링 산화막을 형성하는 단계와, 상기 터널링 산화막 상에 자기 조립 방식으로 형성되는 나노 구조에 금속염을 합성할 수 있는 선구 물질이 도입된 마이셀 템플릿을 포함하는 게이트 형성 용액을 코팅하는 단계와, 상기 반도체 기판 상의 상기 마이셀 템플릿을 제거하여 상기 터널링 산화막 상에 상기 금속염을 배열시켜 상기 플로팅 게이트를 형성하는 단계를 포함한다. 비휘발성 메모리, 플로팅 게이트, 마이셀 중합체, 나노 크리스탈, 자기 조립
Abstract:
A floating gate having multiple charge storing layers, a method for fabricating the floating gate, a non-volatile memory device and a method for fabricating the non-volatile memory device using the same are provided to improve the charge storage capacity of the non-volatile memory device by laminating polyelectrolyte and metal nano crystal in multilayer. A gate structure is formed on the upper side of a silicon substrate(10). The gate structure comprises a tunneling oxide film(11), a floating gate(20) having charge storage layers(12a,13a-12n,13n) of multilayer, a control oxide film(14), and a control gate(15). A source region and a drain region doped with the impurity are formed in the silicon substrate. A channel region is formed between the source region and the drain region. The floating gate is formed on the top of the tunneling oxide film through the self-assembly method. The floating gate is made of the charge storage layer of multilayer.
Abstract:
A method for forming a conductive polymer pattern is provided to improve the adhesive strength to an oxide layer and to enhance the precision of patterning. A method for forming a conductive polymer pattern comprises the steps of forming a self-assembly monolayer(30) on a substrate(10); patterning the self-assembly monolayer; forming a catalyst layer(60) on the self-assembly monolayer; and forming a conductive polymer layer on the self-assembly monolayer. Preferably an insulation layer(20) is formed between the substrate and the self-assembly monolayer. Preferably the conductive polymer layer is made of a polythiophene-based material or a polyaniline-based material.
Abstract:
The present invention relates to a method for manufacturing a metal line using an expansive absorbing film formed by multi-layered thin films, comprising a step for preparing a base material where a pattern is formed; a step for arranging one or more layers of an organic matter layer on the base material where the pattern is formed; and a step for filling inside the pattern of the base material by absorbing metal on the organic matter layer.