Abstract:
PURPOSE: A method for aligning an object without using an alignment key and an apparatus for performing the same are provided to accurately display the misalignment of a real pattern by obtaining the difference of absolute position values from real images. CONSTITUTION: An image acquisition unit obtains the real images of patterns. An image comparison unit (120) sets at least one among the real images as a reference image. The image comparison unit compares the reference image with at least one among the real images except the reference image. The image comparison unit obtains the difference of the relative position values of the real images to the reference image. A calculation unit (130) changes the difference of the relative position values into the difference of the absolute position values based on the set reference point of the object. [Reference numerals] (120) Image comparison unit; (122) Overlapping element; (123) Contrast obtaining unit; (124) Filter unit; (126) Shift element; (130) Calculation unit; (150) Image obtaining unit
Abstract:
블랭크 마스크의 가용성을 향상시킬 수 있는 블랭크 마스크 검사 장치, 이를 이용한 블랭크 마스크의 키 패턴 형성 방법, 그리고 이들을 이용한 마스크 패턴 형성 방법에 관하여 개시한다. 블랭크 마스크 검사 장치를 이용하여 블랭크 마스크의 결점을 검사하고 그 위치를 파악하여 형성하고자 하는 마스크 패턴의 위치와 비교한 다음 블랭크 마스크의 결점들이 마스크 패턴 위치를 벗어나는 경우에 블랭크 마스크에 노광하여 마스크 패턴을 구현함으로써 블랭크 마스크의 가용성을 높인다. 블랭크 마스크의 결점을 검사하기 전에 블랭크 마스크 검사 장치 내에서 블랭크 마스크 상에 키 패턴을 형성한다. 블랭크 마스크, 결점, 키 패턴, 가용성, 고조파 발생기
Abstract:
본 발명은 반도체소자 제조용 현상장치에 관한 것이다. 본 발명에 따른 반도체소자 제조용 현상장치는, 현상액이 담긴 배스 내부에 현상용 기판을 투입하여 현상공정을 수행하는 수행하는 반도체소자 제조용 현상장치에 있어서, 상기 배스 내부 저면에 복수의 진동소자가 소정의 어레이(Array)로 배열되어 구비되는 것을 특징으로 한다. 따라서, 현상액이 저장된 배스 내부에 진동소자를 구비하여 현상액의 반응을 촉진함으로써 현상 공정 후의 포토레지스트 패턴의 선폭(Critical Dimension)의 글로벌 균일도를 향상시킬 수 있는 효과가 있다. 포토리소그래피, 포토레지스트, 현상, 진동소자
Abstract:
PURPOSE: A device of inspecting and measuring a reflective photomask using light accurately measure the line width of a pattern of the reflective photomask by using deep ultra violet (DUV) light. CONSTITUTION: A light irradiation unit (100A) has a light source (110) generating light and a beam forming unit (120). The light irradiation unit includes transmission lens (L1-L3) installed between the light source and the beam forming unit. A reflective photomask (210) is mounted on the lower surface of a photomask stage (200). The reflective photomask includes optical patterns formed on the front surface of a mask substrate (220). A light receiving unit (700) receives optical image information of the reflective photomask mounted on the photomask stage. An image analyzing unit (800) receives digital information from the light receiving unit and analyzes the image information of the patterns of the reflective photomask.
Abstract:
A method for manufacturing a phase shifting mask is provided to reduce manufacture cost and turn around time by using negative and positive resist layers. A dual layer made of a negative resist lower layer(120) and a positive resist upper layer(130) is formed on a transparent substrate(100). A mask pattern for patterning the dual layer is converted into GDS data(140). The dual layer is exposed by using the GDS data with at least two different doses(D,D+) of an electron beam. The exposed dual layer is developed to form a dual layer pattern having lower layer regions with different thickness according to the doses. The transparent substrate is etched by using the dual layer pattern as a protective layer to form phase shifting regions corresponding to the respective lower layer regions on the transparent substrate. The dual layer pattern remained on the transparent substrate is removed.
Abstract:
PURPOSE: A photo-mask and a method for manufacturing the same are provided to precisely produce an MTT(Mean-To-Target) dimension and uniformity of a two-dimensional pattern at the same time by accurately transferring a desire pattern on a substrate. CONSTITUTION: One-dimensional calibration measured patterns are obtained from one-dimensional calibration design patterns and two-dimensional calibration measured patterns are obtained from two-dimensional calibration design patterns(S20). First measured dimensions of the one-dimensional calibration measured patterns are obtained and second measured dimensions of the two-dimensional calibration measured patterns are obtained(S30). A correlation between the first measured dimensions and the second measured dimensions is established(S40). A main measured dimension of a main pattern is changed into the first measured dimension by using the correlation(S50).
Abstract:
본 발명에 의한 포토 마스크의 광학 파라미터 보정 방법은 포토 마스크를 제공하고, 포토 마스크를 노광하여 에어리얼 이미지를 검출하여 포토 마스크를 평가하고, 평가 결과에 따라 포토 마스크에 가스 클러스터 이온빔을 조사하여 에어리얼 이미지와 관련된 포토 마스크의 광학 파라미터를 보정하는 것을 포함한다. 가스 클러스터 이온빔은 마스크 패턴이 형성된 포토 마스크의 앞면 또는 마스크 패턴이 형성되지 않은 포토 마스크의 뒷면에 조사할 수 있다.
Abstract:
A method for fabricating a mask for double exposure is provided to minimize amplification of conformation errors by extracting a circuit pattern formed on a main mask into first and second masks. A main mask including a main pattern formed on a glass substrate and a first region(2) and a second region is prepared. The main mask is aligned on a first mask having an etch stop film(7) and a photosensitive film(8). The first region is transferred on the first mask to form a first mask pattern. The main mask is aligned on a second mask having an etching stop film and a photosensitive film. The second region is transferred on the second mask to form a second mask pattern.