Abstract:
A method for forming a damascene metal line of a semiconductor device and the semiconductor device manufactured thereby are provided to enhance the efficiency of processing by omitting the use of filler. A lower metal line(110) is formed on a semiconductor substrate(100). A mold pattern is formed on the resultant structure in order to define an opening portion capable of exposing the lower metal line to the outside. A via(131) is formed by filling a conductive material in the opening portion. An interlayer dielectric(150) is formed thereon. A trench for exposing the via to the outside is formed through the interlayer dielectric. A damascene metal line(161) for contacting the via is formed in the trench.
Abstract:
PURPOSE: A method for fabricating a semiconductor integrated circuit device is provided to prevent the damage of a layer to be etched by forming a sacrificial layer on an intermediate mask pattern and simultaneously etching the sacrificial layer and a first pattern. CONSTITUTION: A layer to be etched(110a), a first layer, and a second layer are successively formed on a substrate(100a). A first etching mask including a plurality of first line patterns, which is spaced apart in a first pitch, on the first layer and the second layer. The second layer and the first layer are successively etched using the first etching mask in order to form an intermediate mask pattern(142a) including second patterns(132a, 132b) and first patterns(121a, 121b). Second etching masks(320a, 320b) including a plurality of second line patterns, which is spaced apart in a second pitch, are formed on the intermediated mask pattern.
Abstract:
A test device and a semiconductor integrated circuit device are provided to improve reliability and productivity by performing a test by reflecting the bridge states of shared contacts. A plurality of test shared contacts are formed in an upper part of a semiconductor substrate. The plurality of test shared contacts are adjacently formed to make a pair. A first test structure(310) includes a plurality of a first test wiring(312) and a first body wiring(314). The test wiring is formed in the upper part of the test shared contact to be electrically connected to at least one test shared contact. The plurality of test shared contacts are electrically connected to one test shared contact among the test shared contacts making the pair. The first body wiring electrically connects the plurality of first test wirings. A second test structure(320) includes a plurality of second test wirings(322) and the second body wiring(324).
Abstract:
A method of fabricating a semiconductor device and the semiconductor fabricated by the same are provided to prevent an ohmic layer and a nickel silicide layer from reacting with each other during a subsequent process. A gate electrode(110) is formed on a semiconductor substrate(100), and then a source/drain region(122) is formed in the semiconductor substrate at both sides of the gate electrode. A nickel silicide layer(132) is formed on surfaces of the gate electrode and the source/drain region. An interlayer dielectric(140) with contact holes(142), through which the surface of the nickel silicide layer is exposed, is formed on the substrate. An ohmic layer is formed by depositing a refractory metal conformably along the contact holes. A diffusion barrier is formed on the ohmic layer conformably along the contact holes, and then a metal layer is formed by burying a metal material within the contact holes.
Abstract:
A method for forming an STI region of a semiconductor device is provided to improve the reliability without the degradation of integration level by increasing an isolation path using a buried gap. A trench with a predetermined depth is formed at an isolation region of a semiconductor substrate(11). A buried gap is formed under the trench in the substrate. The width of the buried gap is larger than that of the trench. The buried gap is connected through the trench. The buried gap is partially filled with an oxide layer(51), wherein the oxide layer is made of an ozone rich TEOS layer. An isolation layer is formed on the resultant structure by filling completely the trench using an insulating layer.
Abstract:
다공 생성 물질을 포함하는 충전재를 사용하여 층간 절연막의 손상을 최소화할 수 있는 미세 전자 소자의 듀얼 다마신 배선제조 방법이 제공된다. 듀얼 다마신 제조 방법은 비아를 다공 생성 물질(porogen)을 포함하는 충전재로 채운후, 비아를 매립한 충전재와 층간 절연막을 일부 식각하여 비아와 연결되고 배선이 형성될 트렌치를 형성한다. 이어서, 비아에 잔류하는 충전재의 다공 생성 물질을 제거하여 충전재내에 다공을 생성한 후, 다공이 생성된 충전재를 제거하고, 트렌치 및 비아를 배선 물질로 채워서 듀얼 다마신 배선을 완성한다. 듀얼 다마신, 층간절연막 손상, 다공 생성 물질
Abstract:
A charge pump and a low-power DC-DC converter using the same are provided to reduce a resistance element by enlarging a voltage between a gate and a source by maximizing a swing width of power applied to a gate of a charge transmission transistor of a pumping terminal. In a charge pump, an input terminal receives input voltage. An output terminal generates output voltage. A voltage level shifting unit(420) shifts a voltage level of first and second gate clock signals for enabling the received first and second gate clock signals to have a predetermined amplitude. A plurality of pumping terminals(430) is connected between the input terminal and the output terminal in series. Each of the pumping terminals(430) transfers the voltage inputted to a first terminal, to a second terminal, wherein the gate clock signal corresponding to the pumping terminals between the first and second gate clock signals is applied to a first gate terminal, and a level of the voltage transferred to the second terminal includes a charge transmission transistor that is a maximum level of the gate clock signal.
Abstract:
반도체 장치 및 이의 제조 방법에 있어서, 제1 절연막을 패터닝하여 형성된 제1 폭을 갖는 제1 개구부의 측벽과 저면 상에 하부전극을 연속적으로 형성한다. 이후, 제1 절연막 상에 형성된 제2 절연막을 패터닝하여 형성되고, 제1 폭보다 넓은 제2 폭을 가지면서 제1 개구부를 노출시키는 제2 개구부의 내부를 따라 상기 하부전극을 덮도록 유전막 및 상부전극을 형성한다. 제1 및 제2 개구부를 형성할 경우, 하부전극에 필드를 인가하기 위한 하부배선도 동시에 형성한다. 하부전극의 단부와 상부전극의 단부를 적어도 하나 이상의 유전막 높이만큼 이격시켜 전류누설을 효과적으로 방지할 수 있다. 또한, 커패시터를 형성하기 위한 개구부와 하부배선을 형성하기 위한 개구부를 동시에 형성함으로써 공정 소요 시간 및 비용을 크게 단축할 수 있다.
Abstract:
이중 다마신 공정을 사용하여 비아콘택 구조체를 형성하는 방법을 제공한다. 이 방법은 반도체기판 상에 하부배선을 구비한다. 상기 하부배선을 갖는 반도체기판 상에 식각저지막, 단일 저유전막(a single low-k dielectric layer)인 층간절연막 및 제 1 희생막을 차례로 형성한다. 이어, 상기 제 1 희생막 및 층간절연막을 차례로 패터닝하여 상기 하부배선 상부의 상기 식각저지막을 노출시키는 예비비아홀을 형성한다. 상기 예비비아홀을 갖는 반도체기판 상에 상기 예비비아홀을 매립하는 제 2 희생막을 형성한다. 상기 제 2 희생막, 상기 제 1 희생막 및 상기 층간절연막을 차례로 패터닝하여 상기 예비비아홀의 상부를 가로지르며, 상기 층간절연막 내에 위치하는 트렌치 영역을 형성한다. 상기 트렌치 영역 형성 후 잔류하는 상기 제 1 및 제 2 희생막을 습식식각에 의해 동시에 제거하여 상기 예비비아홀 저면의 식각저지막을 노출시킨다. 상기 노출된 식각저지막을 식각하여 상기 하부배선을 노출시키는 최종비아홀을 형성한다. 이중 다마신(dual damascene), 희생막, 비아홀(via hole), 얇은 캐핑산화막