Abstract:
Semiconductor manufacturing equipment is provided to maximize the yield by improving reproducibility of a wafer teaching process without failure using a camera and a control unit. Semiconductor manufacturing equipment includes a plurality of loadlock chambers(110) for storing a cassette with wafers, a plurality of process chambers(130) with a wafer chuck, a transfer chamber for connecting selectively the process chambers with the loadlock chambers, a wafer transfer robot(152) for transferring the wafer between the loadlock chamber and the process chamber at a center portion of the transfer chamber, a camera, and a control unit. The camera is installed over the chuck in order to detect the wafer. The control unit is used for outputting a control signal capable of controlling a wafer teaching process of the wafer transfer robot according to the position of the wafer checked by the camera.
Abstract:
공정 지연 및 사고를 예방할 수 있는 반도체 기판 가공 장치가 개시되어 있다. 반도체 기판 가공 장치는 이너 튜브, 이너 튜브를 감싸는 아웃터 튜브, 이너 및 아웃터 튜브의 하부에 결합된 플랜지, 반도체 기판들을 적층하여 이너 튜브 내로 승강하는 보트, 보트에 적층된 반도체 기판의 상면과 하면을 따라 각기 진행하도록 한 쌍의 검사 신호를 방출하는 센서 유닛, 및 센서 유닛으로부터 검사 신호의 간섭 정보를 제공받아 반도체 기판들의 수납된 상태를 모니터링 하기 위한 모니터링 유닛을 구비한다. 이 경우, 보트는 각각의 반도체 기판이 한 쌍의 센서 유닛 사이에서 정지하도록 비선형적으로 승강하며, 센서 유닛은 정지 상태일 경우 검사 신호를 방출한다. 모니터링 유닛은 검사 신호의 간섭 여부에 따라 반도체 기판의 이상 여부를 예측할 수 있다. 따라서 반도체 기판의 이상으로 인한 공정 사고를 방지할 수 있다.
Abstract:
A method of manufacturing a boat of a vertical diffusion furnace is provided to prevent particles from being generated on a wafer by removing previously convexoconcave type contaminant structure from a slot using a hydrogen torch. A flange and a rod are attached to each other by performing welding using a hydrogen gas(203). Residual stress and contaminants are removed from the welded portion(204). A first bonding process is performed on the resultant structure by using a molten wax(205). A slot for loading a wafer is formed by machining the resultant structure(206). A second bonding process is performed on the slot portion by using the molten wax(207). A convexoconcave type contaminant structure is removed from a surface of the slot by using a hydrogen torch(209). A heat treatment and a cleaning process are performed thereon(210).
Abstract:
PURPOSE: A method and an apparatus of generating gas plasma, a gas composition of generating plasma, and a method of fabricating a semiconductor device using the same are provided to reduce the manufacturing cost by using an inexpensive gas such as C3F8. CONSTITUTION: A first electric field is formed in a first direction perpendicular to a flowing direction of floating gas by applying a current in the same direction as the flowing direction of the floating gas. A second electric field is formed in parallel to the flowing direction of the floating gas. Plasma is generated by applying the first electric field and the second electric field to the floating gas. The floating gas includes gas containing fluoric atoms, oxygen gas, and argon gas.
Abstract:
PURPOSE: A method and an apparatus for generating gas plasma, a gas composition for generating plasma, and a method for fabricating a semiconductor device using the same are provided to increase the productivity of the plasma in a plasma generation process using a remote method by shortening a period of time for generating the plasma. CONSTITUTION: A method for generating gas plasma includes a process for forming magnetic field, a process for providing electric power, and a process for forming gas plasma. The process for forming magnetic field is to form the main magnetic field having the axial direction and the auxiliary magnetic field having the direction parallel to the axial direction. The process for providing electric power is to apply the RF AC current to a path within a region between the main magnetic field and the auxiliary magnetic field. The process for forming gas plasma is to generate the gas plasma by flowing the gas to the same path as the path for applying the electric power. The path for applying the electric power is formed with a spiral path.
Abstract:
PURPOSE: A metal gasket used at a semiconductor process chamber is provided to be capable of preventing the metal contamination of the process chamber due to the diffusion of main material components of a main material framing panel by using an anti-diffusing layer. CONSTITUTION: A metal gasket is used for sealing a connecting portion between parts of a process chamber. An anti-diffusing layer(120a) and a corrosion resistive coating layer(130) are sequentially formed on the surface of a main material framing panel(110). When carrying out processes in the process chamber, main material components of the main material framing panel are prevented from diffusing into the corrosion resistive coating layer(130) by the anti-diffusing layer(120a). Preferably, Cu is used for the main material framing panel and Au is used for the corrosion resistive coating layer. Preferably, the anti-diffusing layer is made of one selected from a group consisting of Ti, W, TiN, and Ni.
Abstract:
PURPOSE: An apparatus for heating a substrate and an apparatus having the same are provided to prevent process error due to the non-uniformity in the temperature distribution by heating the substrate using a hot plate with a uniform temperature distribution. CONSTITUTION: An apparatus for heating a substrate(200) includes a heater(220) for issuing a thermal energy for heating a semiconductor substrate(900), and a hot plate(210) for heating the substrate(900) by way of the thermal energy from the heater(220). The hot plate(210) is formed with first and second hot plates(212,214) differentiated in the thermal conductivity. The semiconductor substrate(900) is placed on the second plate(214). The heater(220) contacts the bottom of the hot plate(210) with a hot wire(222) for issuing the thermal energy for heating the semiconductor substrate(900). In this structure, the hot plate(210) is heated by the thermal energy from the heater(220). The first plate(212) contacting the heater(220) is formed with aluminum having a relatively high thermal conductivity. The second plate(214) mounting the semiconductor substrate(900) thereon is formed with stainless steel having a relatively low thermal conductivity.
Abstract:
An O-ring and a sealing device using the same are provided to prevent or minimize local damage of the O-ring due to incomplete installation thereof by inserting the O-ring in a gland in a perfect state. An O-ring includes a body(12) having a circular cross section and plural flanges(14 to 17) protruding from the body. The flanges are arranged at regular intervals, and have a rectangular cross section protruding from one or both sides of the body, respectively. A first indication line extends straightly in a longitudinal direction of the body, and a second indication line intersects a width of the body.
Abstract:
A flat zone alignment apparatus is provided to prevent abrasion of an alignment roller and contamination of wafers by varying a portion of the alignment roller connected to sides of the wafers. A housing(110) accommodates plural wafers vertically and holds down a cassette whose upper and lower portions are opened. An alignment roller(120) is formed in the housing. The alignment roller is contacted to an edge part of a lower portion of the wafers exposed through the lower portion of the cassette. A first driving unit(150) rotates the alignment roller to align a flat zone of the wafers. A second driving unit(160) straight-reciprocates the alignment roller to an extended direction of the central axis of the alignment roller to vary a connecting surface of the alignment roller that is connected with the sides of the wafers.
Abstract:
An ion source part is provided to minimize the loss of electrons and ions generated at both ends of a chamber and formation of unnecessary arc by reducing a volume ratio of the inner space at both ends of the chamber. A chamber(100) is provided in which the area of a section of the inner space vertical to an axis extending the center of both ends of the inner space has a maximum value in the center of the inner space and decreases as it goes to both the ends of the inner space. A filament(101) is disposed at one end of the chamber to discharge thermal electrons. A repeller(102) penetrates the other end of the chamber so as to be extended to the inside of the chamber. A gas inlet(103) is formed in the sidewall of the chamber to introduce gas including a dopant species into the chamber. A beam slit(104) extracts an ionization species from the chamber such that the ionization species is generated from the gas, formed in the sidewall of the chamber. The area of the section of the inner space symmetrically decreases from the center of the chamber to both the end of the chamber.