Abstract:
The present invention relates to a 3D stacked NAND flash memory array and, more specifically, to a 3D stacked NAND flash memory array having an SSL status check building for monitoring a threshold voltage of string selection transistors, a method for monitoring the threshold voltage of the string selection transistors through the SSL status check building, and a method for driving the 3D stacked NAND flash memory array having the SSL status check building.
Abstract:
Provided is a semiconductor device and a method of fabricating the same. The semiconductor device includes a substrate having first and second areas separated from each other; a structure formed on the substrate and formed by alternately laminating at least one sacrificial layer and at least one active layer; a first gate-all-around device formed in a first area and including a first nanowire; and a second gate-all-around device formed in a second area and including a second nanowire. The first nanowire is formed at the same level as that of a first active layer among the at least one active layer, and the second nanowire is formed at the same level as that of a second active layer among the at least one active layer. The first active layer is different from the second active layer.
Abstract:
본 발명은 3차원 스타구조를 갖는 단위 빌딩 구조, 이를 이용한 3차원 낸드 플래시 어레이 및 그 동작방법에 관한 것으로, 각 비트 라인으로 각 층을 선택하게 하고, 각 층에서 수평방향으로 형성된 액티브 라인들은 각 스트링 선택 라인에 의하여 선택되도록 함으로써, 주변회로의 변경을 최소화하면서 동작속도 및 효율을 극대화시키며, 스트링선택트랜지스터의 게이트 길이를 충분히 길게 형성함으로써, 종래와 같이 어렵게 불순물 도핑층을 형성할 필요가 없게 되고, 각 액티브 라인 끝단에는 공통 바디로 연결되어 블록 이레이즈 동작도 가능하고, 비트 라인 결함 시에도 단위 빌딩 여유로 용이하게 대처할 수 있으며, 판 상의 셀 게이트들을 하나의 워드 라인 페이지 평면(page plane)으로 선택하고, 선택된 워드 라인 페이지 평면에서 스트링선택라인들을 하나 씩 순차적으로 선택하며 동작시킴으로써, 단위 빌딩 구조가 2 이상 확장되더라도, 빠른 속도로 동작시킬 수 있는 효과가 있다.
Abstract:
PURPOSE: A 3D stacked NAND flash memory array capable of layer selection by multi-level operation (LSM) and an operating method thereof improve the degree of integration of the memory array by minimizing the increase in the number of string selection lines (SSL) for layer selection even when the number of layers of a vertically laminated active line is increased. CONSTITUTION: Multiple active lines are separated from multiple semiconductor layers (1st layer, 2nd layer, 3rd layer, 4th layer) in a first horizontal direction vertically laminated across an insulating film on a substrate. Multiple word lines are separated from the semiconductor layers in a second direction across an insulating film layer to be perpendicular to each active line. Multiple string selection lines (1st SSL,2nd SSL) are separated from the multiple semiconductor layers in the second direction across the insulating film layer and in parallel to each word line at one side of the multiple word lines.
Abstract:
PURPOSE: A manufacturing method of semiconductor device which comprises a filling wiring and a device relating the same are provided to prevent a contamination of a semiconductor substrate by comprising the filling wiring in the lower part of an active element. CONSTITUTION: An inter-layer insulating film which covers a sacrificed pattern, a body and an active element is formed (140). A contact hole which exposes the sacrificed pattern through the inter-layer insulating film is formed. An empty space is formed by removing the sacrificed pattern (150). An amorphous silicon film is formed inside the contact hole and the empty space (160). The amorphous silicon film is transformed to the metal silicide layer (170). [Reference numerals] (110) Producing sacrificed pattern; (120) Forming semiconductor layer; (130) Forming gate transmission membrane and electrode; (140) Forming inter-layer insulation membrane; (150) Removing the sacrificed pattern; (160) Forming amorphous silicone membrane; (170) Forming metal silicide membrane; (180) Forming core
Abstract:
PURPOSE: A single electron transistor and a manufacturing method thereof are provided to reduce the size of a quantum dot by surrounding the quantum dot with a tunneling insulation layer and a gate insulation layer in a trench. CONSTITUTION: A semiconductor substrate includes a protrusion on one side thereof. A source region(14) is formed on the protrusion of the substrate. A sidewall insulation layer(22) is formed on the etched substrate and a part of the sidewall of the protrusion. A drain region(34) faces the source region and is more protrusive than the sidewall insulation layer. The gate insulation layer surrounds the front, the rear, and the top of the quantum dot.
Abstract:
PURPOSE: A semiconductor device with a vertical device and a non-vertical device and a forming method thereof are provided to implement a semiconductor device with a threshold voltage of various levels without an additional process. CONSTITUTION: A p-well(24), an n-well(25) and a device isolation layer(23) are formed on a semiconductor substrate(21). An n-drain region(26), a first source/drain region(27), and a second source/drain region(29) are formed on the p-well. A p- vertical channel region(31P) and an n- source region(33S) are formed on the n- drain region. A channel region(28) is formed between the first source/drain region and the second source/drain region. A second gate electrode(43B) is formed on the channel region. A second gate dielectric layer(41B) is interposed between the second gate electrode and the channel region.
Abstract:
본 발명은 커패시터가 없는 1T 디램 소자와 그 동작방법 및 제조방법에 관한 것으로, 함몰된 바디에 두개의 게이트를 갖는 구조를 함으로써, GIDL 현상을 이용한 쓰기 동작이 가능하여 종래 소자의 신뢰성 문제를 해결할 수 있음은 물론 드레인과 겹치지 않는 게이트에 음의 전압을 독립적으로 인가할 수 있어 데이터 "0"의 보유시간을 획기적으로 늘릴 수 있게 된 효과가 있다.