Safety, Security, and Health Care

TxACE is developing analog technology that enhances public safety and security, and health care. The projects are intended to enable a new generation of devices that can scan for harmful substances by researching 200-300 GHz silicon ICs for use in spectrometers as well as a CO2 sensor. The ICs and CO2 sensor can also be used to analyze breaths for medical applications. The thrust is also working to significantly reduce the cost of millimeter wave imaging and on-vehicle radar technology for automotive safety by researching circuit techniques that can improve manufacturing, and simplify test and packaging, as well as signal processing techniques that reduce system complexity. Lastly, this thrust is investigating vibration sensors.

Figure 1. (Top left) 200-260 GHz CMOS transmitter and receiver for rotational spectroscopy (K. O, W. Choi, UT-Dallas), (Top right) Injection-locked receiver for synchronization of widely spaced imaging array (A. Babakhani, Rice U.), (Bottom left) Vibration sensor compatible with conventional silicon IC and packaging technologies (S. Pourkamali, UT Dallas), (Bottom left center) Automotive radar imaging (M. Torlak, UT-Dallas), (Bottom right center) Projected e-test space, where each point represents a wafer. A proper test flow to each process signature of each wafer is assigned to maximize the test cost reduction while maintaining the test escape rate below a target level. (Y. Makris, UT-Dallas), (Bottom right) Magnitude of field inside a dielectric waveguide (D. MacFarlane, SMU).

Safety, Security and Health Care Thrust

Category Accomplishment
Safety, Security and Health Care (Systems) Terahertz spectrometers can be used for a variety of applications including process monitoring and gas detection. In this task, a terahertz spectrometer has been used within an Applied Materials plasma reactor for process diagnostics. Studies have been completed which show that the spectrometer can accurately measure densities of plasma constituents for a number of gas mixtures including CF2, FCN, HCN, CO and others. (1836.126, DeLucia, OSU)
Safety, Security and Health Care (Systems) Vibration sensors can be used for infrastructure and machine monitoring. A vibrometer has been fabricated using a TI CMOS process. The chip includes an array of cantilevers designed for measurements across a wide range of frequencies, DC to 10kHz, with an 1-mg resolution. Measured DC sensitivity for the longest cantilever (~2mm) is ~0.07mV/g for a 20V input. (1836.155 Pourkamali, UTD)