Abstract:
The present invention relates to a semiconductor light emitting device, which comprises a first conductive semiconductor layer; an active layer formed on the first conductive semiconductor layer; a second conductive semiconductor layer formed on the active layer and having an upper surface on which at least one groove unit is formed; a transparent electrode layer formed on the second conductive semiconductor layer; and a first electrode and a second electrode electrically connected to the first conductive semiconductor layer and the second conductive semiconductor layer, wherein the center of the groove unit intersects with a straight line which links the center of the first electrode and the center of the second electrode to improve the current distribution, thereby improving the internal light extraction efficiency.
Abstract:
본 발명은 단전자 트랜지스터 및 그 제조방법에 관한 것으로, 기존 CMOS 공정을 통해 기판의 돌출부에 형성된 소스 영역, 측벽 절연막 및 드레인 영역에 의하여 트렌치를 형성하고, 상기 트렌치 속에 터널링 절연막 및 게이트 절연막으로 양자점을 둘러싸도록 함으로써, 양자점의 크기를 효과적으로 줄일 수 있고, CMOS 공정으로 제조되는 소자와 하나의 기판에 동시 집적할 수 있는 효과가 있다.
Abstract:
PURPOSE: A one-time programmable nonvolatile memory array having a vertically stacked structure and methods for operating and fabricating the same are provided to save installation fee by omitting a separate deposition device since a unit memory array is repetitively vertically laminated by using an existing deposition device and etching device. CONSTITUTION: A bit line(82) formed into a first conductive material is located on a substrate(10). A plurality of word lines(32,33) formed into s second conductive material is located on a substrate. The word lines are crossed with each bit line in both up and down sides while leaving each bit line in between. Insulating layers(42,43) are formed to be contacted with each word line. Semiconductor material layers(53,54,63,64) are interposed to perform PN junction between the insulating layer and each bit line.
Abstract:
PURPOSE: A 1T dram device with a split gate structure and a dram array using the same are provided to improve not only retention time of data '1' but also the retention time of data '0' by including one or two side gates in one side or either side to be separated from a center gate. CONSTITUTION: A semiconductor body is formed into a pillar shape. A source(20) and a drain are formed in the either side of the semiconductor body. A center gate(50) is formed on the semiconductor body between gate insulating layers. The center gate is connected to a center word line. Side gates(40,60) are formed on the semiconductor body between isolation insulating layers(32,34).
Abstract:
본 발명은 수직 적층된 3차원 낸드 플래시 메모리 어레이 및 그 제조방법에 관한 것으로, 더욱 상세하게는 수직하게 적층된 반도체층들을 구별하기 위해 일측에 적층된 반도체층들의 층수보다 적은 층선택라인들을 구비하여 이를 통해 전기적 초기화로 구현되는 3차원 낸드 플래시 메모리 어레이 및 그 제조방법에 관한 것이다.
Abstract:
본 발명은 기둥형상의 단결정 채널 및 프린징 필드(fringing field)에 의한 가상 소스/드레인을 갖는 낸드 플래시 메모리 어레이 및 그 제조방법에 관한 것으로, 기판을 식각하여 만든 kxn개의 단결정 실리콘 기둥들로 액티브 영역을 형성하고, 수직으로 m개의 워드라인들 및 제어 수단(공통소스영역, 하부 선택 게이트, 및 상부 선택 게이트들)을 형성함으로써, 간단한 공정에 의하여 3차원적으로 집적도를 얼마든지 늘릴 수 있고, 각 셀의 바디가 기판과 연결되어 통상의 지우기 동작이 가능하며, 단결정 채널에 의한 전하 캐리어 이동도(mobility)를 높일 수 있는 효과가 있다. 기둥, 단결정채널, 프린징필드, 낸드, 플래시, 메모리, 어레이
Abstract:
PURPOSE: A stacked NOR flash memory array and a manufacturing method thereof are provided to vertically increase memory capacity by virtually forming a plurality of word lines and a plurality of bit lines cross each other. CONSTITUTION: A plurality of word lines(WL11,WL21,WL12,WL22) is vertically stacked on a substrate with a preset distance. A channel region and a source/drain are repeatedly formed on a plurality of semiconductor layers while interposing an insulation layer with a charge storage layer on one side of each word line. A plurality of interlayer dielectric layers is formed on each word line and the upper and lower sides of each semiconductor in parallel to each word line. A plurality of bit lines(92,94) includes at least one interlayer dielectric layer and a vertical connection plug in contact with the upper and lower source/drain of each semiconductor layer and crosses each word line.