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:
The present invention includes a device isolation layer which is formed in a semiconductor substrate, a buried transistor electrode, an electrode mask on the buried transistor electrode, and an active region between the device isolation layer and the electrode mask on the buried transistor electrode. The upper part of the active region has an enlarged lateral surface which is made of a conductive material such as the active region. The active region which is metallized and enlarged by depositing the same conductive material as the active region on the upper part of the active region has a wide contact area between the active region and the DC. Therefore, a DC process can be easily carried out, and a DRAM semiconductor device with good electrical properties can be obtained.
Abstract:
A method for manufacturing a semiconductor device and the semiconductor device manufactured thereby are provided to improve a current driving capability and to enhance the degree of integration by using multi-channel transistors. An isolation layer for defining an active region is formed on a semiconductor substrate. A plurality of pre-semiconductor pillars are formed within the active region. The pre-semiconductor pillars are self-aligned with the active region and spaced apart from each other. Semiconductor pillars(180,185,190a,190b) are formed on the resultant structure by etching selectively the pre-semiconductor pillars. Each semiconductor pillar has a hole. At least one gate structure(320a to 320c) are formed on the resultant structure to cross over the semiconductor pillars and the holes of the semiconductor pillars.
Abstract:
주변 회로 영역의 불순물 영역들에 대한 열적 부담을 완화시키는 반도체 소자의 제조 방법이 제공된다. 상기 반도체 소자의 제조 방법은 셀 활성영역 및 주변 활성영역들 각각 갖는 셀 어레이 영역 및 주변 회로 영역을 구비하는 기판을 준비하는 것을 구비한다. 상기 셀 활성영역 및 상기 주변 활성영역을 각각 가로지르는 셀 게이트 패턴 및 주변 게이트 패턴을 형성한다. 상기 셀 게이트 패턴의 양측의 상기 셀 활성영역에 제1 셀 불순물 영역들을 형성한다. 상기 제1 셀 불순물 영역들을 갖는 기판 상에 상기 셀 어레이 영역 및 상기 주변 회로 영역을 각각 덮는 셀 하부 층간절연막 및 주변 절연막을 형성한다. 상기 셀 하부 층간절연막을 관통하여 상기 제1 셀 불순물 영역들과 전기적으로 연결되는 셀 도전성 패드들을 형성한다. 상기 주변 게이트 패턴의 양측의 상기 주변 활성영역들을 노출시키도록 상기 주변 절연막을 제거한다. 상기 주변 게이트 패턴의 양측의 상기 주변 활성영역들에 제1 주변 불순물 영역들을 형성한다. 열적 부담, 주변 영역, 불순물 영역
Abstract:
A semiconductor device having an active pattern having a channel recess and a method for manufacturing the same are provided to suppress a narrow width effect by increasing a channel width. An active pattern(100b) having first active regions and a second active region arranged between the first active regions is formed on an upper part of a semiconductor substrate(100). An isolation layer(110) is formed to surround the active pattern. A channel recess part for exposing sidewalls of the first active regions facing each other is formed by recessing an upper region of the second active region. A groove(110a) for exposing a sidewall of the second active region is formed within the isolation layer. Sidewalls of the groove are protruded in comparison with the sidewalls of the first active regions.