Paper
1 August 2002 Simulation-based defect printability analysis on attenuated phase-shifting masks
Author Affiliations +
Abstract
Simulated wafer images for Attenuated Phase Shift Mask (ATTPSM) features are performed by the Virtual Stepper System. The ATTPSM test reticles were prepared with programmed defects (hard defects and phase defects) on line/space patterns, contact hole patterns, and rectangle patterns for 150-nm design rules. Each defect area was inspected using KLA-Tencor's UV-HR365 and SLF27 inspection systems. Virtual Stepper simulations are compared with Aerial Image Measurement System (AIMSTM) simulation at best focus and at multiple defocus levels. In addition, simulation accuracy from different inspection images is compared.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Linyong Pang, Qi-De Qian, Kevin K. Chan, Nobuhito Toyama, and Naoya Hayashi "Simulation-based defect printability analysis on attenuated phase-shifting masks", Proc. SPIE 4754, Photomask and Next-Generation Lithography Mask Technology IX, (1 August 2002); https://doi.org/10.1117/12.476979
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Virtual reality

Inspection

Photomasks

Reticles

Semiconducting wafers

Cadmium

Phase shifts

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