A Very Deep Submicron Cell Library and Design System for RH ASICs

Remote detection and characterization of underground facilities (UGF) is of great importance in environmental, geologic, mining, law enforcement, and strategic arms treaty applications. This is particularly true for the detection and imaging ofsubterranean features such as tunnels, bunkers, and other potential military targets. Various detection techniques currently used in geophysical imaging include seismic reflection and refraction, ground penetrating radar, infrared thermal imaging,gravity, electrical resistivity, magnetic, and electromagnetic (EM) methods.The goal of this proposed work is to develop and demonstrate a sensor system for detecting and characterizing UGFs using small, lightweight, low-cost, magnetoresistive (MR) sensors. These sensors can be configured to measure all three components of thefield with a sensitivity of a few tens of pT/Hz1/2 over a frequency band extending from DC to several MHz. The sensitivity and versatility of MR sensors enable both passive magnetometry and active EM detection to be performed with a single sensor and,therefore, represents a fusion of magnetometer and EM induction (EMI) capabilities. The complimentary magnetic and EM data can be combined in a sensor fusion scheme to minimize sensor clutter and discriminate against false targets.The technology to be developed under this program will find civilian and military applications. Many applications exist in the commercial sector of the government, which include urban and highway traffic, building security, and border surveillance.Systems using related technology will also find applications in land-mine alternative applications, detection of armed troops and military vehicles, detection of concealed weapons, and perimeter surveillance.