摘要:
The present disclosure provides for many different embodiments. An exemplary method can include providing a mask fabricated according to a design pattern; extracting a mask pattern from the mask; converting the mask pattern into a rendered mask pattern, wherein the simulated design pattern includes the design pattern and any defects in the mask; simulating a lithography process using the rendered mask pattern to create a virtual wafer pattern; and determining whether any defects in the mask are critical based on the virtual wafer pattern. The critical defects in the mask can be repaired.
摘要:
The present disclosure relates to a lithographic tool arrangement for semiconductor workpiece processing. The lithographic tool arrangement groups lithographic tools into clusters, and selectively transfers a semiconductor workpiece between a plurality of lithographic tools of a first type in a first cluster to a plurality of lithographic tools of a second type in a second cluster. The selective transfer is achieved though a transfer assembly, which is coupled to a defect scan tool that identifies defects generated in the lithographic tool of the first type. The disclosed lithographic tool arrangement also utilizes shared structural elements such as a housing assembly, and shared functional elements such as gases and chemicals. The lithographic tool arrangement may consist of baking, coating, exposure, and development units configured to provide a modularization of these various components in order to optimize throughput and efficiency for a given lithographic fabrication process.
摘要:
A method comprises providing a semiconductor substrate having a first layer and a second layer above the first layer. The first layer haw a plurality of first patterns, vias or contacts. The second layer has second patterns corresponding to the first patterns, vias or contacts. The second patterns have a plurality of in-plane offsets relative to the corresponding first patterns, vias or contacts. A scanning electron microscope is used to measure line edge roughness (LER) values of the second patterns. An overlay error is calculated between the first and second layers based on the measured LER values.
摘要:
A method comprises providing a semiconductor substrate having a first layer and a second layer above the first layer. The first layer haw a plurality of first patterns, vias or contacts. The second layer has second patterns corresponding to the first patterns, vias or contacts. The second patterns have a plurality of in-plane offsets relative to the corresponding first patterns, vias or contacts. A scanning electron microscope is used to measure line edge roughness (LER) values of the second patterns. An overlay error is calculated between the first and second layers based on the measured LER values.
摘要:
A method of manufacturing a photomask is described. The graphic data of the photomask are provided, and than an optical proximity correction is performed to the graphic data. A process rule check is then performed to the graphic data with the optical proximity correction. When at least one failed pattern not passing the process rule check is found in the graphic data, a repair procedure is performed only to the failed pattern so that the failed pattern can pass the process rule check. The patterns of the photomask are then formed according to the corrected and repaired graphic data.
摘要:
The present disclosure provides for many different embodiments. An exemplary method can include providing a blank mask and a design layout to be patterned on the blank mask, the design layout including a critical area; inspecting the blank mask for defects and generating a defect distribution map associated with the blank mask; mapping the defect distribution map to the design layout; performing a mask making process; and performing a mask defect repair process based on the mapping.
摘要:
A method of an in situ cleaning of an objective lens of a semiconductor apparatus includes placing a cleaning wafer having a detergent layer on a scanning stage of the semiconductor apparatus. A cleaning composition in the detergent layer is dissolved by using an immersion liquid (water), so that the cleaning composition reacts with the contaminants on the objective lens. Thereafter, the objective lens is rinsed with another solvent.
摘要:
A dual damascene process involves forming a first passivation layer, a first dielectric layer and a second passivation layer on a substrate of a semiconductor wafer. A first lithography and etching process is performed to form at least one via hole in the second passivation layer and the first dielectric layer. Thereafter, a second dielectric layer and a third passivation layer are formed on the surface of the semiconductor wafer followed by performing a second lithography and etching process to form at least one trench in the third passivation layer and the second dielectric layer. The trench and the via hole together construct a dual damascene structure. Finally, a barrier layer and a metal layer are formed on the surface of the semiconductor wafer, and a chemical-mechanical-polishing (CMP) process is performed to complete the dual damascene process.
摘要:
The present invention fabricates a dual damascene structure. A passivation layer, a first dielectric layer, a second passivation layer, a second dielectric layer, a third passivation layer and a third dielectric layer are formed on the surface of the semiconductor wafer followed by etching the third dielectric layer to form a pattern of an upper trench of the dual damascene structure. Then the third passivation layer and the second dielectric layer are etched down to the surface of the second passivation layer so as to form a pattern of a via hole of the dual damascene structure. Thereafter, the third passivation layer and the second passivation layer not covered by the third dielectric layer and the second dielectric layer are removed. The third dielectric layer and the second passivation layer are used as hard masks to remove the second dielectric layer and the first dielectric layer until the surface of the first passivation layer. Finally, the second passivation layer and the first passivation layer not covered by the second dielectric layer and the first dielectric layer are removed to the surface of the conductive layer so completing the process of fabricating the dual damascene structure.
摘要:
A three-dimensional display including a display and a micro-lens is provided. The display has a plurality of pixel units thereon, and each pixel unit has a pixel pitch i. The micro-lens is disposed at a side of the display, the micro-lens has a plurality of lens units thereon, and each lens unit has a lens pitch l. A right eye viewing zone and a left eye viewing zone are formed if an image displayed from the display passes though the micro-lens, wherein a distance between the center of the right eye viewing zone and the center of the left eye viewing zone is wz, and lens pitch l satisfies: 2 i > l ≥ 2 i × w z w z + i , wz is between 70 and 500 mm and i is between 0.1 and 500 μm.