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Imaging Of Overlay And Alignment Markers Under Opaque Layers Using Picosecond Laser Acoustic Measurements


Optically opaque materials present a series of challenges for alignment and overlay in the semi-damascene process flow or after the processing of the magnetic tunnel junction (MTJ) of a Magnetic Random-Access Memory (MRAM). The overlay and alignment of a lithographically defined pattern on top of the pattern and the underlying layer is fundamental to device operation in all multi-layer patterne... » read more

The Search For 5G mmWave Filters


Cellular telephone technology takes advantage of a large number of frequency bands to provide ever-increasing bandwidth for mobile use. Each of those bands needs a filter to keep its signals separate from other bands, but the filter technologies in current use for cellphones may not scale up to the full millimeter-wave (mmWave) range planned for 5G. “MmWave will happen,” said Mike Eddy, ... » read more

Synthetic Aperture And Plane Wave Ultrasound Imaging With Versal ACAP


Medical ultrasound is the most widely accepted and available form of diagnostic imaging today because of many significant advantages. It uses low-energy acoustic waves, and there are no known harmful side-effects on patients unlike potential ionizing radiation from X-rays or CT scans. Ultrasound can capture dynamic soft issue images, which X-rays cannot. Ultrasound systems are compact and trans... » read more