Abstract:
PURPOSE: An AND type flash memory array of a vertical laminate structure, a manufacturing method thereof, and an operating method are provided to perform high integration by forming a local bit line and a local source line in a silicon pin of each layer. CONSTITUTION: An AND type flash memory array of a vertical laminate structure includes one or more bit lines, a local bit line, a memory cell, a local source line, a common source line, a drain selecting line, a source selecting line, and word lines. The local bit line is connected to each bit line(98a,98b,98c) by a first selecting transistor. A plurality of memory cells are parallel connected by using the local bit line as a common drain line. The local source line is commonly connected to a source of each memory cell. The common source line is vertically arranged with each bit line in which the local source line is connected by a second selecting transistor. The drain selecting line and the source selecting line are connected to a gate of the first selecting transistor and a gate of the second selecting transistor. The word lines are connected to a gate of each memory cell.
Abstract:
An NVM(non-volatile memory) device is provided to improve electron injection efficiency by making the injection direction of electrons passing through the bottom surface of a charge trap layer have the transfer direction of electrons. A semiconductor substrate(104) includes a bottom part(104c) and a vertical part vertically protruding from the bottom part. The vertical part includes first and second vertical parts(104a,104b). A first vertical part is positioned in the upper part of the semiconductor substrate with respect to a boundary step. The second vertical part is positioned under the first vertical part, greater in width than the first vertical part and protruding to the outside of the first vertical part. A charge trap layer(134) is positioned outside the first vertical part and on the boundary step. A control gate electrode(150) is positioned on the bottom part and outside the second vertical part and the charge trap layer. A first insulation layer(124) can be interposed between the semiconductor substrate and the charge trap layer. A second insulation layer(144) can be interposed between the semiconductor substrate and the control gate electrode.
Abstract:
본 발명은 SOI 기판에서 얕은 정션 깊이를 갖는 NAND형 플래시 메모리 어레이 및 그 동작 방법에 관한 것으로, 메모리 셀의 채널이 켜질 때 바디 영역이 완전히 공핍되도록 얇게 제작된 SOI 기판 위에 얕은 정션을 갖는 메모리 셀로 NAND형 플래시 메모리 어레이를 구성함으로써, 리드 동작 시의 성능 향상은 물론, SOI구조에서 이레이즈 동작이 가능하도록 하며, 프로그램 동작 시에 종래의 NAND형 플래시 메모리 어레이에서 사용되던 높은 V PASS 전압 대신 낮은 V PASS 전압 사용을 가능하게 하여 종래 보다 프로그램 간섭(disturbance)을 효과적으로 줄이는 방법을 제공한다. SOI, NAND, 플래시, 메모리, 어레이, 동작
Abstract:
전자 주입 효율이 증가하고, 고집적도에 유리한 메모리 소자 및 이의 제조 방법이 제공된다. 메모리 소자는 바닥부, 및 바닥부로부터 수직하게 돌출되어 있는 수직부를 포함하되, 수직부는 경계단을 중심으로 상부에 위치하는 제1 수직부, 및 하부에 위치하며, 제1 수직부보다 폭이 크고, 제1 수직부의 외측으로 돌출되어 있는 제2 수직부를 포함하는 반도체 기판, 제1 수직부의 외측 및 경계단의 상부에 위치하는 전하 트랩층, 및 바닥부의 상부 및 제2 수직부와 전하 트랩층의 외측에 위치하는 컨트롤 게이트 전극을 포함한다. 플래쉬 메모리 소자, 수직부, 전자 주입 효율, 자기 정렬
Abstract:
A flash memory array using the same device and a method of fabricating the same are provided to solve the interference of stored bit and improve the degree of integration by using a vertical structure to fabricate a charge storage region and a region having a gate insulating layer in self-alignment. A flash memory device with a split gate over a recessed channel comprises a source/drain region(12a) on a semiconductor substrate; a recessed channel region between the source and the drain; a separation gate(50a) between the channel region and a first insulating layer; a second isolating layer formed on the separation gate; a third insulating layer formed on the both channel region, not contacted with the separation gate; a charge storage region(70a) formed on the third insulating layer; a forth insulating layer formed on the source and drain region; a program gate formed on the fourth and second insulating layer, between the charge storage region and the fifth insulating layer.
Abstract:
A memory cell device having a vertical channel and a double gate structure are provided to enhance a degree of integration by forming an active region of a pillar shape with a first to third semiconductor layers. An active region(20) of a pillar shape includes a first semiconductor layer(22) for forming a first source/drain region, a second semiconductor layer(24) for forming a second source/drain region, and a third semiconductor layer(26) for forming body and channel regions between the first and second semiconductor layers. A field region(40) is formed to separate the active region of the pillar shape. A first insulating layer(50) is formed with two or more dielectric layers including an electric charge trap layer formed on a sidewall of the active region of the pillar shape. A second insulating layer is formed with one or more dielectric layers which are formed at an upper end of the first semiconductor layer and an upper end of the field region. A control gate(70) is formed on the first and the second insulating layers.
Abstract:
A NAND-type flash memory array and an operating method thereof are provided to reduce program disturbance by using a body biasing contact region connected to an active region on a lower portion of a side of a second select gate line. At least one bit line(B/L0,B/L1) is formed on an SOI substrate. A first select transistor, plural memory cells, and a second select transistor are serially connected to each bit line by their geared sources and drains. The source of the second select transistor is electrically connected to a common source line(CSL) vertically arranged to the bit line. A gate of the first select transistor and a gate of the second select transistor are respectively connected to a first select gate line(SSL) and a second select gate line(GSL) arranged to be crossed with the bit line. Gates of the memory cells are respectively connected to plural word lines(W/L0,W/L1) arranged to be crossed with the bit line. A body biasing contact region(BBC) is connected to an active region on a lower portion of a side of the second select gate line.
Abstract:
본 발명은 SOI 기판 상에 직렬 연결된 소자의 바디 바이어싱 구조에 관한 것으로, 공통 소스/드레인 영역의 정션 깊이를 얕게 만듦으로써, 통상적인 벌크 MOSFET처럼 하나의 바디 바이어싱 콘택만으로도 여러 개의 소자에 대해 바디 바이어싱을 가능하게 하여 SOI 기판의 플로팅 바디 효과(floating body effect)를 제거하는 효과가 있다. SOI, 바디, 바이어스, 플로팅
Abstract:
본 발명은 수직 적층구조를 갖는 앤드형 플래시 메모리 어레이와 그 제조방법 및 동작방법에 관한 것으로, 로컬 비트 라인과 로컬 소스 라인이 수직하게 이격되어 형성된 실리콘 핀이 산화막을 사이에 두고 2개 이상 적층된 다층 실리콘 핀 구조를 가짐으로써, 수직으로 얼마든지 확장하여 고집적화시킬 수 있고, 이미 정립된 에피택시(epitaxy) 공정이나 이온주입 공정을 적절히 반복적으로 적용하면 되므로, 별도의 공정 장비가 요구되지 않으며, 적정한 두께를 갖는 각 층 실리콘 핀에 의하여 각 층 바디 영역을 용이하게 공핍(depletion) 시킬 수 있기 때문에 셀프부스팅 효과를 극대화시킬 수 있어, 쓰기 동작시 이웃한 셀의 간섭을 거의 완벽하게 제거할 수 있는 효과가 있다. 수직 채널, 적층, 이중 게이트, 앤드형, 플래시 메모리, 어레이