Abstract:
PURPOSE: A semiconductor device including storage nodes having enhanced capacitance is provided to improve data input and output and refresh characteristics by increasing the capacitance of a cell capacitor. CONSTITUTION: In semiconductor device including storage nodes having enhanced capacitance, first bit lines(230r) is electrically connected to central parts of a first active region(210r). First patterns are electrically connected to parts of the first active domain frame. A second active region(210d) is electrically to the first active domain frame. Second patterns include the second bit line(230d). Second bit lines are parallel to first bit lines. The word lines(220) is formed on the first and second active areas. The First patterns and the word lines is used for data input/output.
Abstract:
The present invention relates to a method for fabricating a semiconductor device forming first to third silicon crystal layers at the first to third surfaces of an active area, exposing the first surface by removing the first silicon crystal layer, forming a bit line stack on the exposed first surface, forming a bit line sidewall spacer formed at both surfaces of the bit line stack and arranged vertically to the parts of the second and third silicon crystal layers of the active area, removing the second and third silicon crystal layers at the lower part of the bit line sidewall spacer for exposing the second and third surfaces of the active area, and forming a storage contact plug contacting the second and third surfaces of the active area.
Abstract:
A semiconductor device and a manufacturing method thereof are provided, which improve turn on current value by providing the gate within the gate trench. The gate trench(112) within the substrate(110) has the side wall contacting with source and drain region(120). The gate insulating layer(130) is formed along the gate trench inner surface. The metal pattern(145) is formed at the lower part of the gate trench. The non-metal conductive pattern(155) is formed in the upper part of the metal pattern. The channel region within substrate faces the metal pattern and non-metal conductive pattern. The depth of the gate trench is deeper than the depth of the drain region and source.
Abstract:
보이드가 없는 게이트 전극을 갖는 함몰형 채널 영역을 갖는 반도체 소자의 제조방법을 개시한다. 개시된 본 발명은, 셀 영역 및 주변 영역을 포함하는 반도체 기판상에 소자 분리막을 형성한다음, 상기 반도체 기판의 게이트 전극 예정 영역중 선택된 영역에 트렌치를 형성하고, 상기 반도체 기판 표면에 게이트 절연막을 형성한다. 상기 게이트 절연막 상부에 상기 트렌치가 매립되도록 N형 불순물이 포함된 제 1 다결정 실리콘막을 형성하고, 상기 제 1 다결정 실리콘막을 소정 두께만큼 제거한다. 상기 제 1 다결정 실리콘막 상부에 제 2 다결정 실리콘막을 형성한다음, 상기 제2 다결정 실리콘막을 소정 부분 패터닝하여, 상기 셀 영역 및 주변 영역에 트랜지스터 게이트 전극을 형성한다. 함몰된 채널(RCAT), 듀얼 폴리,