Photonics Research Group Home
Ghent University Journals/Proceedings
About People Research Publications Education Services
 IMEC
intern

 

Publication detail

Authors: Y. Xing, J. Dong, S. Dwivedi, U. Khan, W. Bogaerts
Title: Accurate Extraction of Fabricated Geometry Using Optical Measurement
Format: International Journal
Publication date: 10/2018
Journal/Conference/Book: Photonics Research
Editor/Publisher: OSA, 
Volume(Issue): 6 (11) p.1008-1020
DOI: 10.1364/PRJ.6.001008
Citations: 55 (Dimensions.ai - last update: 29/9/2024)
43 (OpenCitations - last update: 27/6/2024)
Look up on Google Scholar
Download: Download this Publication (3.5MB) (3.5MB)

Abstract

We experimentally demonstrate extraction of silicon waveguide geometry with sub-nanometer accuracy using optical measurements. Effective and group indices of silicon on insulator (SOI) waveguides are extracted from the optical measurements. An accurate model linking the geometry of an SOI waveguide to its effective and group indices is used to extract the linewidths and thicknesses within respective errors of 0.37 nm and 0.26 nm on a die fabricated by the IMEC multi-project wafer (MPW) services. A detailed analysis of the setting of the bounds for the effective and group indices is presented to get the right extraction with improved accuracy.

Related Research Topics

Related Projects

Citations (OpenCitations)

Back to publication list