Journal
OPTICS AND LASERS IN ENGINEERING
Volume 68, Issue -, Pages 50-57Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2014.12.013
Keywords
Optical coherence tomography; Touch-screen panel; Nondestructive optical inspection; Defect inspection
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Funding
- Korea Healthcare Technology R&D Project, Ministry of Health & Welfare, Republic of Korea [A102024-1011-0000200]
- Ministry of Trade, Industry & Energy (MI, Korea) [R0001512, 10047943]
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We investigated the use of optical coherence tomography (OCT) to measure several materials immersed in optical adhesives. The effects of variations in the concentration, physical characteristics, and thickness of the materials were studied, and these parameters were found to significantly affect the OCT measurement. The materials were selected for their distinct spectral properties in the infrared region. To ensure reliability, we acquired images using a scanning electron microscope after performing the semiconductor production process. We verified the feasibility of the application of OCT for defect inspection and product verification of touch-screen panels. (C) 2014 Elsevier Ltd. All rights reserved.
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