Visualization of interior structures with nanoscale resolution using ultrasonic-atomic force microscopy

Dong Ryul Kwak; Sun Hee Kim; Ik Keun Park; Judith A. Todd; Chiaki Miyasaka

doi:10.1117/12.2012244

9 April 2013 Visualization of interior structures with nanoscale resolution using ultrasonic-atomic force microscopy

Dong Ryul Kwak, Sun Hee Kim, Ik Keun Park, Judith A. Todd, Chiaki Miyasaka

Proceedings Volume 8691, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013; 869117 (2013) https://doi.org/10.1117/12.2012244
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

Ultrasonic-Atomic Force Microscopy (U-AFM) was applied to determine the feasibility of visualizing interior features in an ultra-thin film system. As the amplitude and phase of the cantilever resonance frequency changes with local contact stiffness, U-AFM can obtain both surface and subsurface topographic and elastic images. Specimens with nanostructured silicon dioxide (SiO₂) patterns deposited on silicon (111) surfaces were fabricated and covered with polymethyl methacrylate (PMMA) films with thicknesses of 800 nm and 1400 nm, respectively. While subsurface features were barely distinguishable beneath the 1400 nm film, 100 nm SiO₂ features were clearly visualized for PMMA film thicknesses below and up to 800 nm. This research demonstrates the potential of U-AFM as a powerful technique for visualizing nanoscale subsurface features in microelectronic devices.

Citation Download Citation

Dong Ryul Kwak, Sun Hee Kim, Ik Keun Park, Judith A. Todd, and Chiaki Miyasaka "Visualization of interior structures with nanoscale resolution using ultrasonic-atomic force microscopy", Proc. SPIE 8691, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2013, 869117 (9 April 2013); https://doi.org/10.1117/12.2012244

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available