Abstract:
PURPOSE: A layer insulating film flatness method for a semiconductor memory device is provided to obtain a layer insulating film of a flat topology with a small stepped difference by removing the layer insulating film by a suitable quantity in a cell array region and its peripheral region. CONSTITUTION: A photoresist film(160) is selectively exposed using a photo mask(200) in which a transmission region(202) is defined for exposing only cell array region of a semiconductor substrate. A range of the transmission region(202) is defined by a shading pattern(210) and an intensive adjustment pattern(220) in the photo mask(200). The shading pattern(210) is formed by a chrome film. The intensive adjustment pattern(220) exposes only an adjacent region(170) to a portion in which a stepped difference of a layer insulating film(150) is sharply generated using a n adjusted optical transmission ratio.
Abstract:
본 발명은 투과광의 세기 저하를 보상하는 포토마스크의 결함 수정 방법에 관한 것으로, 포토마스크 기판과, 상기 포토마스크 기판상에 형성된 광차단막과, 상기 광차단막상에 광투과 영역과 광차단 영역을 정의하여 형성된 콘택 패턴들을 포함하고, 상기 포토마스크 기판상에는 정상 콘택 패턴과 비정상 콘택 패턴이 함께 형성되어 있고, 상기 비정상 콘택 패턴은 상기 정상 콘택 패턴보다 상대적으로 좁은 광투과 영역을 갖는다. 이 때, 상기 비정상 콘택 패턴의 일측 광차단막을 식각하여 상기 정상 콘택 패턴의 광투과 영역보다 상대적으로 넓은 광투과 영역을 갖도록 한다. 이와 같은 방법에 의해서, 오패크 결함을 갖는 비정상 패턴을 정상 콘택 패턴보다 상대적으로 더 넓은 콘택 패턴이 되도록 수정함으로써 포토마스크 기판 손상에 따른 투과광의 세기 저하를 보상할 수 있다.
Abstract:
반도체장비에 대해 개시한다. 본 발명에 의한 장비는 전자 빔을 포커싱하기 위한 렌즈, 및 포커싱 된 빔을 굴절시키기 위한 굴절시스템을 구비하는 반도체장비에 있어서, 상기 굴절시스템은 8개의 원통형의 쇼트 전극으로 구성된 전향장치를 n개 시리즈 형식으로 배열하여 이루어진 것을 특징으로 한다. 따라서, 기존 전향장치 보다 훨씬 작은 수차를 가지는 빔 스팟 사이즈를 얻을 수가 있다.
Abstract:
전자빔 노광장비를 이용한 노광공정에 있어서, 포토마스크 상의 어드레스 사이즈(address size) 및 빔 스팟 사이즈(beam spot size)를 인자로 하여 유도한 강도 함수에 의거하여 균일한 패턴을 얻을 수 있는 최적 노광 조건을 결정한 방법에 대해 기재되어 있다. 이는, 가우시간 빔 에너지 분포를 가지는 전자빔 노광 장치를 이용하여 xy 평면상에 균일한 패턴을 노광하기 위한 최적의 노광 조건을 결정하는 방법에 있어서, 마스크 상의 어드레스 사이즈와 빔 스팟 사이즈를 포함하는 인자와 소정의 경계 조건으로부터 가우시간 분포에 의거한 강도의 함수 및 그 미분 함수를 유도하는 단계, 및 패턴의 경계면에서 강도 함수의 변화량(@) 및 미분함수( k I/ K X 및 K I/ K Y)이 작은 값으로부터 적정 노광조건을 결정하는 단계로 이루어지는 것을 특징으로 한다. 따라서, 우수한 패턴 균일도 및 에지 프로파일을 얻을수 있는 최적의 노광 조건을 결정할 수 있으며, 노광 공정에 소요되는 시간을 절약할 수 있다.
Abstract:
PURPOSE: A coating composition for filtering deep ultraviolet ray, and a photo-resist pattern forming method a semiconductor device manufacturing method using the same are provided to precisely form micro patterns. CONSTITUTION: A coating composition for filtering deep ultraviolet ray includes 100 parts by weight of a solvent and 0.05-5 parts by weight of coating polymer. The solvent contains a first solvent which is an alcoholic solvent. The degree of absorption of the polymer to incident light of 194nm of wavelengths is more than or equal to 50%/um. A photo-resist pattern forming method includes the following: a first layer(110) is formed on a substrate(190) based on a photo-resist composition for extreme ultraviolet ray; a second layer(120) is formed on the first layer based on the coating composition; the first layer and the second layer are exposed through an exposure mask(130); the first layer and the second layer are developed.
Abstract:
The method of creating the mask layout image, the computer readable media including a sequence of programmed instructions stored thereon for creating the same and the imaging system are provided to obtain the mask layout pattern having the high fidelity. A part or the entire target image transferred on the substrate is readable. The mask data set including a plurality of pixels is defined. A plurality of pixels has the predetermined penetration characteristic. The weighting function having the value in the critical range is defined. The convolution kernel defined with the illumination system is defined. By the weighting function and convolution kernel are applied. The mask layout image minimizing the image fitting function is generated.
Abstract:
A method for forming a pattern of a semiconductor device and a forming apparatus thereof are provided to form a uniform pattern of the semiconductor device by removing an acid caused by an exposure process. A photoresist layer is formed by coating a photoresist on a substrate(S10). A selective exposure process is performed to expose selectively a pattern region of the photoresist layer(S20). A selective deprotecting reaction process for the photoresist of the pattern region is selectively performed by applying solar energy to the photoresist layer(S30,S40). A developing process is performed to remove the pattern region(S50). The photoresist is a chemically amplified resist. The solar energy applies the active energy of the deprotecting reaction process to the photoresist.
Abstract:
A mask structure is provided to easily and quickly compensate the thickness of the mask structure by including a main pattern having transmission and auxiliary patterns. A main pattern(102) has a first transmission. The main pattern includes first sides that are perpendicular with each other. Auxiliary patterns(104,106) have a second transmission higher than the first transmission. The auxiliary patterns include second sides and third sides. The second sides are in parallel with first sides facing each other among the first sides of the main pattern. The third sides are perpendicular with the second sides. The second sides have the same length as the first sides. The first transmission is 0.1 to 0.3. Second auxiliary patterns have a third transmission. The first sides of the auxiliary patterns include fourth sides and fifth sides. The fourth sides are in parallel with the remaining first sides facing each other among the first sides of the main patterns. The fifth sides are perpendicular with the fourth sides.
Abstract:
A method for fabricating a mask is provided to form a mask data pattern for an SADP(self-align double patterning) process with improved reliability by performing an SADP emulation based on a layout and an SADP emulation based on an image. A second mask data pattern for embodying a first mask data pattern is designed. A first emulation pattern expected from the second mask data pattern is formed by emulation. A second emulation pattern expected from the first emulation pattern is formed by using SADP emulation(S410). A pattern in which the first and second emulation patterns overlap each other is compared with the first mask pattern, and a mask layer corresponding to the second mask data pattern according to the result of the comparison. In the comparison process, a conflict point in which an overlap pattern of the first and second emulation patterns doesn't match the first mask data pattern can be found and classified.