Abstract:
캐퍼시터의 유전체막에 있어서, 리크 특성 개선을 위한 Al 도프층을 형성해도 유전체막이 Al 도프층에 의해 분단되지 않고, 사이즈 효과의 영향을 억제하여 결정성이 양호한 유전체막을 제공하기 위해, 유전체막 중에 적어도 1 층의 Al 도프층을 가지며, Al 도프층의 1 층에 있어서의 Al 원자의 면 밀도를 1.4E+14[atoms/㎠] 만으로 한다. 또, 그 면 밀도를 달성하기 위해, 통상적인 ALD 에 의한 유전체막 성막과, Al 소스의 흡착 사이트를 제한하는 블로커 분자의 흡착을 실시한 후, Al 소스를 흡착시키고, 반응 가스를 도입하여 반응시키는 흡착 사이트ㆍ블로킹 ALD 법에 의한 Al 첨가의 조합을 채용한다.
Abstract:
PURPOSE: A method for manufacturing a capacitor, the capacitor, and a method for forming a dielectric layer used for the capacitor are provided to suppress a leak current of a bottom electrode by forming a first TiO2 layer. CONSTITUTION: A bottom electrode layer is formed on a substrate. A first TiO2 layer is formed on the bottom electrode layer. A ZrO2 layer is formed on the first TiO2 layer. An annealing process is performed on the ZrO2 layer. A second TiO2 layer is formed on the ZrO2 layer. [Reference numerals] (A1) Bottom electrode layer is formed on the concave part of an insulation layer; (A2) Process 1; (B1) Etching and removing an insulation layer; (B2) Process 2; (C1) First TiO2 layer is formed on a bottom electrode layer; (C2) Process 3; (D1) ZrO2 layer is formed on a first TiO2 layer; (D2) Process 4; (E1) Anneal for crystallizing ZrO2; (E2) Process 5; (F1) Second TiO2 layer is formed on a ZrO2 layer; (F2) Process 6; (G1) Top electrode layer is formed on a second TiO2 layer; (G2) Process 7
Abstract:
PURPOSE: A film depositing method and a film forming apparatus are provided to form a zirconia type film which does not drop a dielectric constant and a leak property. CONSTITUTION: A manifold(3) supports the bottom of a treatment basin. A heater(40) is arranged in the circumference of the treatment basin. A zirconium material supply device(15) supplies a zirconium material to the inside of the treatment basin. A silicon material supply device(16) supplies a silicon material to the inside of the treatment basin. An oxidizer supply device(14) supplies an oxidizer to the inside of the treatment basin.
Abstract:
PURPOSE: A reaction pipe and a heat processing apparatus for a semiconductor process are provided to perform a thermal treatment with a high uniformity. CONSTITUTION: A reaction pipe and a heat processing apparatus for a semiconductor process are composed of a reaction tube(3), a heater(22), a substrate holder, a gas supply system, and a gas exhaust system. The reaction tube performs a thermal treatment by receiving while receiving a plurality of targets at a certain interval, and a heater surrounds the reaction tube. A substrate holder maintains the target in the reaction tube, and the gas supply system supplies a process gas into the reaction tube.
Abstract:
열처리장치(1)는 승온용 히터(12)를 갖아, 유기물이 부착한 웨이퍼(10)를 수용하는 반응관(2)과, 반응관(2)내에 산소가스를 공급하는 제 1 가스도입관(13)과, 수소가스를 공급하는 제 2 가스도입관(14)을 구비하고 있다. 제 1 가스도입관(13)에 의해 산소가스, 제 2 가스도입관(14)에 의해 수소가스가 반응관(2)내에 공급되어, 승온용 히터(12)에 의해 반응관(2)이 산소가스 및 수소가스가 활성화가능한 온도로 가열된다. 그리고, 반응관(2)내에서 연소반응이 일어나, 웨이퍼(10)에 부착한 유기물이 산화, 분해하여, 제거된다.
Abstract:
PURPOSE: A forming method for a titanium oxide film is provided to produce excellent leakage current characteristics by optimizing a thickness of a zirconium oxide film on a base. CONSTITUTION: An amorphous zirconium oxide film is formed. An amorphous titanium oxide film is formed by an atomic layer deposition method on an amorphous zirconium oxide film by using methylcyclocyclopentadienyl tris(dimethylamino) titanium as a titanium precursor. The amorphous titanium oxide film is crystallized with annealing at temperatures over 300°C. [Reference numerals] (AA) Dielectric constant increase caused by a Rutile phase; (BB) Relative dielectric constant of Tio; (CC,DD) Anatase crystal; (EE) The thickness of ZrO
Abstract:
PURPOSE: A semiconductor device, a manufacturing method thereof, and an absorption site/blocking atomic layer deposition method are provided to prevent a leakage current by doping Al while not separating TiO2 crystal grains. CONSTITUTION: A capacitor has a dielectric film arranged between a lower electrode(101) and an upper electrode(105). The lower electrode has a three-dimensional structure with an aspect ratio of 20 or greater. The dielectric film comprises one or more Al doped layers(103). The EOT(Equivalent Oxide Thickness) of the dielectric film is 0.9nm or less. The Al atom surface density of the Al doped layer is less than 1.4E+14 atoms per cm square.