Abstract:
Semiconductor wafer cleaning equipment and method are provided to improve the yield by removing effectively particles from an upper surface of a semiconductor wafer without the damage of a predetermined pattern and the re-adsorption of the particles using an improved cleaning structure composed of first and second cleaning units. Semiconductor wafer cleaning equipment comprises a wafer stage(132) for supporting a semiconductor wafer(W), a first cleaning unit and a second cleaning unit. The first cleaning unit is used for removing particles from the wafer by spraying a first cleaning solution capable of restraining the wafer from being electrified. The second cleaning unit is used for removing the particles from the wafer spraying a second cleaning solution and vibrating the second cleaning solution. The second cleaning solution is capable of transforming a wafer state into a hydrophilic state.
Abstract:
PURPOSE: A semiconductor etching apparatus and an etching method using the same are provided to check an alignment state of a wafer before etching by using a wafer detecting sensor installed in a shadow ring. CONSTITUTION: A semiconductor etching apparatus includes an electrostatic chuck, a shadow ring, a wafer detecting sensor. The electrostatic chuck(113) is used for fixing a wafer(111). The shadow ring(115) is spaced apart from an edge portion of the wafer. The wafer detecting sensor(123) is installed in the shadow ring to check the existence of the wafer. The wafer detecting sensor is an optical sensor.
Abstract:
본 발명은 반도체장치 제조를 위한 플라즈마 공정챔버에 관한 것이다. 본 발명에 따른 반도체장치 제조를 위한 플라즈마 공정챔버는, 플라즈마 상태의 반응가스를 이용한 반도체장치 제조공정이 진행되는 공정챔버와 상기 공정챔버 내부에 설치된 다수의 전극과 상기 다수의 전극에 선택적으로 고주파전력을 인가할 수 있는 고주파전원을 구비하는 반도체장치 제조를 위한 플라즈마 공정챔버에 있어서, 상기 다수의 전극중에서 하나 이상의 전극의 표면에 다수의 엠보싱이 형성되어 있는 것을 특징으로 한다. 따라서, 공정챔버 내부에 설치된 다수의 전극의 특정부위 단위면적을 증가시킴으로서 공정챔버 내부에 형성된 플라즈마 가스의 이온밀도의 균일도를 향상시켜 식각막의 균일도, 증착막의 균일도 등을 향상시킬 수 있는 효과가 있다.
Abstract:
PURPOSE: A method of forming a contact hole in a semiconductor device is provided to achieve a contact hole having a tilt and a bend at sidewalls of the contact hole. CONSTITUTION: The first insulation layer having its thickness and a sacrificial thickness(h2) is formed on a semiconductor substrate(26). A photoresist pattern is formed on a portion of the first insulation layer. The second insulation layer(24a) is formed by anisotropic etching to form a groove on the first insulation layer. The photoresist pattern remaining on the second insulation layer is removed. By etch back of the second insulation layer as thick(h1) as the sacrificial thickness, A contact hole is exposed on the semiconductor substrate.
Abstract:
PURPOSE: A plasma processing chamber for fabricating semiconductor devices is provided to improve a uniformity of deposited or etched films by increasing an area of a plurality of electrodes. CONSTITUTION: A plasma chamber comprises a processing chamber(50) using a reactive gas of plasma state, a plurality of electrodes(60,64) formed in the processing chamber(50), and an RF(radio frequency) power source(68) for selectively applying an RF power to the electrodes(60,64), wherein at least one embossing(61,65) are formed on the surface of the electrodes. Since the surface area of the electrodes(60,64) is increased, the uniformity of plasma gas density is improved.
Abstract:
본 발명은 웨이퍼의 종류, 공급전압의 변동에 따라 전압을 보상하는 웨이퍼 고정용 정전척의 전원공급장치에 관한 것으로서, 파워서플라이로부터 공급되는 양전압과 음전압을 필터에서 필터링하여 각각 해당 전극으로 인가하는 웨이퍼 고정용 정전척의 전원공급장치에 있어서, 상기 양전압과 음전압을 필터로 인가하는 라인간의 전압차를 감지하는 감지수단, 상기 감지수단에서 전압차가 감지되면 상기 양전압과 상기 음전압의 절대치의 레벨이 동일하도록 각 전극으로 공급되는 접압을 가변시켜 보상하는 보상수단을 구비하여 이루어지며, 웨이퍼를 정상적으로 척킹할 수 있는 힘이 항상 유지되어서, 웨이퍼 후면 냉각을 위하여 헬륨가스가 분사되더라도 웨이퍼의 무빙이 발생되지 않고 공정을 원활히 수행할 수 있으며, 웨이퍼의 타입에 상관없이 � �킹이 가능한 효과가 있다.
Abstract:
챔버의 일부를 착탈식으로 개선하여 챔버 내부의 세정 방법 및 설비 가동률을 향상할 수 있는 반도체 식각 장치의 챔버에 관하여 개시되어 있다. 이를 위하여 본 발명은, 최상부에 위치하면서 가스를 분산 처리시키는 평판(GDP: Gas Distribution Plate, 이하 GDP라 칭함)과, 상기 GDP의 하부에 위치한 챔버 몸체와, 식각공정 진행시에 발생하는 폴리머를 흡착하는 캐소오드와, 상기 챔버 몸체와 캐소오드를 연결시키는 오링(O-ring)과, 상기 캐소오드의 하부에서 폴리머를 분쇄하는 슬릿 밸브(Slit valve)를 포함하는 반도체 식각 장치의 챔버에 있어서, 상기 챔버 몸체와, 캐소오드와, 슬릿 밸브는 그 내부에 덧입힘 쇠(liner)를 구비하고 착탈식으로 된 것을 특징으로 하는 반도체 식각 장치의 챔버를 제공한다. 따라서 본 발명에 따르면 세정 효과와 설비 가동률을 향상시킨 반도체 식각 장치의 챔버를 구현할 수 있다.
Abstract:
PURPOSE: A chamber of a device for producing a semiconductor is to save costs and hours by separating a dividing member placed on an opening from a body to replace only an etched divided member. CONSTITUTION: A chamber comprises: a body having an inside space and an opening on its one side; a liner having an opening corresponding to the opening of the body; and a divided member arranged on the opening and engaged with the body. When the chamber is required, only the divided member is replaced. A device for producing the semiconductor comprises: a process chamber(20) having an inner space, an opening(28) on its one surface and an anode oxidization film applied on its wall surface; a buffer chamber having an opening corresponding to the opening of the process chamber and moving a wafer to the process chamber; a liner(22) for protecting the anode oxidization film of the process chamber; and a slit valve(24) having one end supported at inside of the process chamber and another end projected out of the process chamber to be connected to the buffer chamber to accomplish an insertion and withdrawal of the wafer.
Abstract:
PURPOSE: A metal layer forming method of semiconductor device is provided to improve degree of confidence by preventing depression of aluminium layer. CONSTITUTION: The method comprises the steps of: forming a insulation layer on a semiconductor substrate, removing the insulating layer so as to form a contact hole, forming tungsten layer on the insulation layer having the contact hole, removing the tungsten layer so as to form tungsten layer only within the contact hole, forming aluminium layer on the insulating layer formed the tungsten layer, reflowing the semiconductor substrate formed the aluminium layer by predetermined temperature.
Abstract:
PURPOSE: An apparatus for manufacturing a semiconductor device using plasma is provided to control efficiently a wafer process by using a multitude of anode electrodes and cathode electrodes within a process chamber. CONSTITUTION: An apparatus for manufacturing a semiconductor device using plasma comprises: a multitude of anode electrodes(50,52,66,68); a multitude of cathode electrodes(42,44,58,60); a first high frequency power(46,62); and a second high frequency power(54,70). The anode electrodes and the cathode electrodes are apart from each other as much as a predetermined distance in order to face to each other. The first high frequency power is connected to the cathode electrode in order to form an electromagnetic field between the anode electrodes and the cathode electrodes. The second high frequency power is connected to the anode electrodes.