Abstract:
A method for forming a trench and a manufacturing method of a semiconductor device using the same are provided to form easily trenches having different depth values by using a polymer bonding process. A plurality of first patterns(104) and a plurality of second patterns(106) are formed on a substrate(100). The first patterns are separated in a first width from each other. The second patterns are separated in a second width from each other. The second width is larger than the first width. The substrate is etched by using the first and second patterns as etch masks. A first trench having a first depth value is formed. A second trench having a second depth value is formed. A gap between the first patterns is filled with a sacrificial layer. The substrate is etched by using the sacrificial layer, the first patterns, and the second patterns as etch masks. The second trench having a third depth value is formed. The third depth value is larger than the second depth value.
Abstract:
완만한 곡률을 갖는 리세스 구조의 형성 방법 및 이를 이용한 반도체 장치의 제조 방법이 개시된다. 하드 마스크가 형성된 기판에 제1 예비 리세스 게이트를 형성하고, 하드 마스크를 이용하여 제1 예비 리세스의 측벽 상에 스페이서를 형성한다. 하드 마스크 및 스페이서를 이용하여 제1 예비 리세스로부터 제2 예비 리세스를 형성한 후, 스페이서를 이용하여 제1 예비 리세스로부터 확장된 하부를 갖는 리세스 구조를 형성한다. 상부와 하부 사이의 곡률이 완만한 리세스 구조물 상에 게이트 절연막과 리세스 게이트 구조물을 형성하여 개선된 특성을 갖는 반도체 장치를 제공할 수 있다.
Abstract:
A method for forming a recess structure and a method for manufacturing a semiconductor device having a recessed gate structure are provided to improve an electrical characteristic and reliability by forming a smooth curve between an upper part and a lower part of the recess structure. A hard mask is formed on a substrate(10). A first preliminary recess is formed on a substrate by using the hard mask as an etch mask. A spacer is formed on a sidewall of the first preliminary recess. A second preliminary recess is formed from the first preliminary recess by using the spacer as an etch mask. A recess structure(40) having an extended lower part is formed from the second preliminary recess by using the spacer as an etch mask. A pad oxide layer pattern is formed between the substrate and the hard mask.
Abstract:
A gas injector and a wafer processing apparatus having the same are provided to supply a process gas to a semiconductor wafer uniformly by spraying the process gas from side and lower surfaces of a second gas injection unit. A gas injector includes a first gas injection unit(110), plural second gas injection units(120), and plural gas lines(130). The first gas injection unit includes first holes(112) on overall side and lower surfaces and sprays process gas on a wafer. The second gas injection units are arranged to be apart from each other by a constant distance in a side direction of the first injection unit and include second holes(122) on half of the side and lower surfaces toward the first injection unit. The gas lines are connected to the first and second gas injection units, respectively and supply the process gas.
Abstract:
단순한 공정으로 트렌치를 형성하는 방법 및 이를 이용한 반도체 소자의 제조 방법이 개시된다. 트렌치를 형성하는 방법에 있어서, 기판 상에 제1 폭으로 이격된 제1 패턴들과 제1 폭보다 넓은 제2 폭으로 이격된 제2 패턴들을 형성한다. 제1 및 제2 패턴들을 식각 마스크들로 이용하여 기판을 식각하여, 제1 깊이를 갖는 제1 트렌치와 제2 깊이를 갖는 예비 제2 트렌치를 형성한다. 제1 패턴들 상부 사이를 폐쇄시키는 희생막을 형성한다. 희생막, 제1 및 제2 패턴들을 식각 마스크들로 이용하여 기판을 식각하여, 제2 깊이보다 깊은 제3 깊이를 갖는 제2 트렌치를 형성한다. 제1 패턴들 상부 사이에 형성된 희생막을 식각 마스크로 사용함으로써, 보다 단순한 공정으로 트렌치를 형성할 수 있다.
Abstract:
Provided is a semiconductor package including a housing which includes a first package substrate; a first semiconductor chip which is arranged on the first package substrate; a heat transmission layer which is arranged on the first semiconductor chip; a heat spreader which is arranged on the heat transmission layer; a molding part which is arranged on the first package substrate and directly surrounds the lateral surfaces of the first semiconductor chip; and a guide wall which is arranged on the molding part and indirectly surrounds the peripheral part of the heat spreader.
Abstract:
A plasma etching apparatus is provided to concentrate plasma on a center of an upper surface of a substrate by improving a structure thereof. A process chamber provides a space for performing a plasma etching process. A gas supply unit supplies a process gas to form plasma within the process chamber. A lower electrode is formed within the process chamber in order to support a substrate. An upper electrode is formed opposite to the lower electrode within the process chamber in order to apply RF power for exciting the process gas of a plasma state. A gas distribution plate(100) is formed on the upper electrode within the process chamber in order to distribute the process gas to an upper part of the substrate. The gas distribution plate includes a central gas distribution plate(110) having a circular shape and n peripheral gas distribution plates(120) having a ring shape. A bottom surface of the peripheral gas distribution plate is higher than a bottom surface of the central gas distribution plate.
Abstract:
A gas injector and a wafer processing apparatus having the same are provided to supply uniformly a process gas onto a wafer by controlling the amount and direction of the process gas sprayed from a second body using a position controlling process on a first body. A gas injector(100) includes a first body and a second body. The first body(110) is formed like a cylinder type structure with an upper opening. The first body includes a first hole(116) at a lower surface, a second hole(118) at a lateral and a groove(120) along the first hole. The first body is used for supplying a process gas. The second body(130) is capable of storing the first body. The second body includes a third hole(136) at a lower surface and a fourth hole(138) at a lateral. The second body is used for spraying the process gas supplied from the first body through the third or/and fourth holes according to the height of the first body.