Abstract:
PURPOSE: A nonvolatile memory device including twin fins separated by a shield electrode and a NAND flash memory array using the same are provided to increase integration by preventing interference between adjacent cells using the shield electrode. CONSTITUTION: A fence type semiconductor(10a) is protrusively formed on a semiconductor substrate. An isolation insulating layer is filled in the fence type semiconductor with a preset height. A gate insulation layer stack(60) includes a charge storage layer on both sides of the fence type semiconductor on the isolation insulating layer. A control electrode(70) surrounds the gate insulation layer stack. The fence type semiconductor is vertically separated from the control electrode to form twin fins(11,12). An insulation layer is formed on both sides of the twin fins and a shield electrode is filled between the twin fins.
Abstract:
PURPOSE: A 3D memory cell stack having a horizontal type selection element is provided to conspicuously improve scattering property between memory cell elements which are perpendicularly laminated by simultaneously forming a selection element material layer on each level. CONSTITUTION: A vertical electrode(10) is vertically formed on a bottom insulating layer. A resistance alteration material layer(20) is formed in order to contact with both sides of the vertical electrode in a first direction. The vertical electrode is sandwiched in between two separation insulating layer posts(31, 32). A selection element material layer(50) is symmetrically formed between the two separation insulating layer posts. Two horizontal electrodes(60) are symmetrically on opposite side of the vertical electrode.
Abstract:
PURPOSE: A semiconductor memory device having a low leakage current is provided to reduce a leakage current in the off state by including a low band gap region having a band gap lower than a first semiconductor region in the first semiconductor region. CONSTITUTION: A semiconductor body(5) is formed on a column type semiconductor equipped with a first side and a second side. The first side and the second side are faced each other. A gate insulating layer(6) is formed on a region except for the first side and the second side among the surfaces of the semiconductor body. A gate electrode(7) is formed on the surface of the gate insulating layer. A first semiconductor region(3) is formed on the first side of the semiconductor body. A second semiconductor region(10) is formed on the second side faced with the first side surface of the semiconductor body.
Abstract:
PURPOSE: A wafer for a semiconductor device is provided to simplify manufacturing process of a one transistor DRAM cell device having a nonvolatile memory function and to improve performance of the DRAM cell device. CONSTITUTION: A first insulating layer(2) is formed on the upper part of a substrate(1). A charge storage layer(3) is formed on the first insulating layer. The charge storage layer is formed into among insulation materials, a semiconductor, and metal materials. A second insulating layer(4) is formed on the charge storage layer. A semiconductor layer(5) is formed on the second insulating layer. The semiconductor layer is formed into a single semiconductor layer or a plurality of semiconductor layers over 2.
Abstract:
본 발명은 적층형 비휘발성 메모리 셀 소자, 비휘발성 메모리 셀 소자 스택, 비휘발성 메모리 셀 스트링, 비휘발성 메모리 셀 스트링 스택, 비휘발성 메모리 셀 스트링 스택 어레이에 관한 것이다. 셀 스트링은 다수 개의 적층형 비휘발성 메모리 셀 소자 및 상기 셀 소자의 끝단에 연결되는 스위칭 소자를 구비한다. 셀 소자 스택은 반도체 기판위에 상기 적층형 비휘발성 메모리 셀 소자들을 적층하여 구현된다. 상기 셀 스트링 스택은 상기 셀 스트링을 적층하여 구현되며, 상기 셀 스트링 스택을 배열하여 셀 스트링 스택 어레이를 구현한다. 상기 셀 소자 스택은, 반도체 기판; 상기 반도체 기판의 표면에 수직형 기둥 형태로 형성되는 제어전극; 상기 제어전극과 상기 반도체 기판의 사이에 형성되는 절연막; 상기 제어전극의 측면에 형성되는 게이트 스택; 상기 게이트 스택의 측면에 형성된 제1 절연막; 상기 제1 절연막의 측면의 일부에 형성된 제1 반도체 영역; 상기 게이트 스택의 측면에 형성된 제2 반도체 영역;을 구비한다. 상기 제1 절연막과 제2 반도체 영역은 상기 게이트 스택의 측면에 교대로 층으로 형성된다. 본 발명에 의하여 제조비용을 줄이면서 NAND 비휘발성 메모리의 용량증가와 셀 소자의 성능을 크게 개선할 수 있다. NAND, 비휘발성, 적층형, 메모리, 고집적, 고용량, 스트링, 스택
Abstract:
PURPOSE: A stacked nonvolatile memory cell device, a nonvolatile memory cell stack, a nonvolatile memory cell string, a nonvolatile memory cell array using the same, and a method for manufacturing the same is provided to improve a sell spreading property by comprising a body in which a channel is formed into a single crystal semiconductor. CONSTITUTION: A control electrode(8) is formed on the surface of a semiconductor substrate(1) into a vertical pillar type. An insulating film is formed between the control electrode and the semiconductor substrate. A gate stack(14) is formed on the lateral side of the control electrode. A first insulating film(9) is formed on the lateral side of the gate stack. A first semiconductor region(10) is formed on the lateral side of the first insulating film. A second semiconductor region(11) is formed on the lateral side of the gate stack.
Abstract:
PURPOSE: A high density flash memory cell stack, a cell stack string and a method for manufacturing the same are provided to improve the integrity by forming a stacked diode type cell device. CONSTITUTION: A vertical pillar type control electrode(6) is formed on the surface of a semiconductor substrate(7). An insulation layer is formed between the control electrode and the semiconductor substrate. A gate stack is formed on the lateral side of the control electrode. Second doped semiconductor regions(1) are stacked on the lateral side of the gate stack. A first doped semiconductor region(2) is formed on the part of the lateral side of the insulation layer and the second doped semiconductor regions.