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Now showing items 21-30 of 143
Nanometer-scale patterning and individual current-controlled lithography using multiple scanning probes
(A I P Publishing LLC, 1999-06)
Scanning probe lithography (SPL) is capable of sub-30-nm-patterning resolution and
nanometer-scale alignment registration, suggesting it might provide a solution to the semiconductor
industry’s lithography challenges. ...
Design of application specific processors for the cached FFT algorithm
(IEEE, 2006-05)
Orthogonal frequency division multiplexing (OFDM) is a data transmission technique which is used in wired and wireless digital communication systems. In this technique, fast Fourier transformation (FFT) and inverse FFT ...
Reflection coefficient null of acoustic waves at a liquid–anisotropic‐solid interface
(Acoustical Society of America, 1989-01)
he reflection coefficient of acoustic waves incident on a liquid–solid interface from the liquid side is numerically calculated for a general anisotropic solid oriented in any arbitrary direction. The reflection coefficient ...
Improvement of anisotropy sensitivity in the scanning acoustic microscope
(IEEE, 1989-03)
Thr response of the conventional scanning acoustic microscope (SAM) to anisotropic materials is theoretically investigated. For
this purpose, the reflection coefficient of plane acoustic naves incident
on a liquid-solid ...
Integration of through-wafer interconnects with a two-dimensional cantilever array
(Elsevier, 2000-05-22)
High-density through-wafer interconnects are incorporated in a two-dimensional (2D) micromachined cantilever array. The design addresses alignment and density issues associated with 2D arrays. Each cantilever has piezoresistive ...
Design charts to maximize the gain-bandwidth product of capacitive micromachined ultrasonic transducers
(IEEE, 2005)
In this work we define a performance measure for capacitive micromachined ultrasonic transducers (cMUT) in the form of a gain-bandwidth product to investigate the conditions that optimize the gain and bandwidth with respect ...
Analysis of tip-sample interaction in tapping-mode atomic force microscope using an electrical circuit simulator
(AIP Publishing, 2001-05-07)
We present a mechanical model for the atomic force microscope tip tapping on a sample. The model treats the tip as a forced oscillator and the sample as an elasticmaterial with adhesiveproperties. It is possible to transform ...
Increasing the sensitivity of the scanning acoustic microscope to anisotropy
(IEEE, 1987)
The response of the scanning acoustic microscope to anisotropic materials is theoretically investigated. For this purpose, the reflection coefficient of plane acoustic waves incident on a liquid-anisotropic-solid interface ...
A VLSI receive beamformer for digital ultrasound imaging
(IEEE, 1992-03)
A VLSI architecture for real-time digital receive beamforming in phased array ultrasound imaging is proposed. The architecture is an inverse binary tree like structure with N stages where N is the number of array elements. ...
Response of surface acoustic wave imaging systems to cylindrical inhomogeneities
(IEEE, 1988-10)
The authors present a theory to predict the response of a SAW (surface acoustic wave) imaging system. In particular, they calculate the response to cylindrical cavities as a function of cavity position with respect to the ...