摘要:
An overlay vernier and a method of fabricating a semiconductor device using the same are provided to enable one overlay vernier to have various space line widths and pitches by forming the overlay vernier having space patterns of right-angled triangle shape. An overlay vernier includes an outer box and an inner box(120). The outer box is formed by arranging four space patterns of a right-angled triangle shape on four sides of a rectangular pattern. The inner box is formed in a center portion of the outer box. The space patterns are arranged along a longitudinal axis of the rectangular pattern.
摘要:
An overlay vernier and a method for measuring an overlay using the same are provided to amplify a signal of a stepped portion of an overlay vernier by forming a basic material on the stepped portion and coating it by fluorescein. An overlay vernier includes a basic substance(140) buried in stepped portions of the overlay vernier and fluorescein coated on the basic material. The overlay vernier is formed on a margin area of a semiconductor substrate, and then the stepped portion is buried by the basic substance. The basic material is coated by the fluorescein, and a light emitting portion is irradiated by light to measure a wavelength of the reflected light.
摘要:
A semiconductor device, and a method and apparatus for testing the same are provided to precisely non-destructive inspect a gap between a substrate and a semiconductor chip in the semiconductor device. A semiconductor device includes a substrate(2), a semiconductor chip(3) mounted on the substrate and electrically connected to the substrate via a boss electrode(6), a first resin material filled in a gap between the substrate and the semiconductor chip, and a second resin material sealing the semiconductor chip mounted on the substrate. A first reflector for reflecting inspection light is formed on a surface of the substrate which faces the semiconductor chip. A second reflector for reflecting the inspection light is formed on the semiconductor chip which faces the substrate.
摘要:
A vertical CMOS image sensor and its manufacturing method are provided to define a gettering part without masking process by forming a pattern for defining the gettering part except an alignment pattern to a zero-mask required for alignment without using an additional mask, so that the productivity can be improved by implementing the gettering part through a simplified process. A pixel array region and a dummy area are formed on a silicon substrate(101). A first and a second epi layer(104,107) are formed sequentially on the entire surface of the silicon substrate. A first photodiode(103) is formed on the pixel array area of the silicon substrate. A second and a third photo diodes(106,108) are formed on the first and the second epi layer respectively by overlapping with a region of the first photodiode formation region. A first gettering part(102) is formed on a lower portion of a groove. A second gettering part(105) is formed on the first epi region corresponding to the around of the groove. A third gettering part(109) is formed on the second epi region corresponding to the upper portion of the groove.
摘要:
A method for manufacturing a semiconductor device is provided to reduce an expensive photolithography procedure for use in forming an align key by commonly using a photoresist pattern. A protective layer(110) is formed on a semiconductor substrate(100). A sacrificial layer(120) is formed on the protective layer. The sacrificial layer has etching selectivity with respect to the protective layer. A part of the sacrificial layer is selectively etched to form an align key(140). An aligned well(220) is formed on the semiconductor substrate by using the align key. An aligned isolation layer is formed on the semiconductor substrate where the well is formed by using the align key. Before the protective layer is formed, a different disaligned well(210) is formed on the semiconductor substrate. The different well surrounds the well.
摘要:
A method for manufacturing a semiconductor device is provided to prevent damage of a semiconductor substrate due to an etching and to increase accuracy of overlay by forming an oxide layer before forming a poly silicon layer when an overlay aligning mark is formed. A pad oxide layer and a pad nitride layer are formed on an upper portion of a semiconductor substrate(100). An isolation region is etched to form a first trench. An HDP(High Density Plasma) oxide layer(130) gap-filling the first trench is formed. An isolation layer is formed by performing a planarization etching process to expose the pad nitride layer. The isolation layer is etched in a predetermined depth by the whole surface etching process to form a second trench. The pad oxide layer and the pad nitride layer are removed. An oxide layer(140) and a poly silicon layer(150) are formed on an upper portion of the second trench and the upper portion of the semiconductor substrate. The poly silicon layer is etched by a recess gate region formation process to form an overlay aligning mark where a step of the second trench is remained.
摘要:
다마신(damascene) 공정으로 작성하기에 적당한 신규한 다층 배선 구조를 갖는 반도체 장치를 제공한다. 반도체 장치는 복수의 반도체 소자를 갖는 반도체 기판 상에 형성되며 하층 다마신 배선을 갖는 제 1 절연층과, 그 위에 형성되며 제 2 다마신 배선과 제 1 단차를 형성하는 위치 맞춤 배선 패턴을 갖는 제 2 절연층과, 동일 표면 배선층으로 형성되며 제 2 다마신 배선을 덮는 표면 배선 패턴과 위치 맞춤 배선 패턴 위에 형성되며 제 1 단차를 반영하는 제 2 단차를 갖는 제 1 위치 맞춤 표면 배선 패턴과, 표면 배선 패턴과 제 1 위치 맞춤 표면 배선 패턴을 덮어서 제 2 절연층 상에 형성된 제 3 절연층을 갖는다. 위치 맞춤, 배선 패턴, 마커, 비어홀, 에칭 스토퍼층
摘要:
A method of manufacturing an overlay key is provided to simplify manufacturing processes and to reduce fabrication costs by performing in-situ processing using a photoresist pattern for opening an overlay key region. A shallow trench isolation layer(18) is formed in a semiconductor substrate(10). A photoresist pattern for opening an overlay key region of the substrate is formed thereon. An overlay key pattern is formed on the resultant structure by recessing the shallow trench isolation layer of the overlay key region using a wet etching process. The photoresist pattern is removed from the resultant structure by using in-situ processing. Then, an in-situ cleaning process is performed on the resultant structure.
摘要:
An exposure mask of a semiconductor device and a semiconductor device forming method are provided to improve stability and reliability of a semiconductor device manufacturing process by checking easily the result of an exposure process using an improved inner bar structure composed of two or more bars parallel with each other. An exposure mask of a semiconductor device includes a quartz substrate, an outer bar(11) used as a first light shielding pattern on the quartz substrate, and an inner bar(13) used as a second light shielding pattern. The inner bar is composed of at least two or more bar type structures parallel with each other.
摘要:
An overlay key, a method of forming the same, a semiconductor device fabricated by using the same, and a method of fabricating a semiconductor device by using the same are provided to obtain a clear overlay key image by using the overlay key in which a film having high reflectivity is formed under a main scale. An overlay key includes a main scale(224) formed on a metal silicide film directly contacting a silicon substrate, and a vernier(254) provided on the main scale. The metal silicide is obtained by reacting the substrate(200) with a metal material. The metal silicide contains cobalt silicide, tungsten silicide, titanium silicide, and tantalum silicide. The metal silicide has reflectivity of 8 to 30%.