Search Results - hugh+barnaby

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Predicting Radiation Effects and Total Ionizing Dose in Bipolar Junction Transistor Circuits
Background Bipolar transistors are used extensively for analog circuits utilized in spaceborne applications. However, this region of space, including the higher reaches of Earth's atmosphere, is populated by many high-energy particles that can damage the bipolar transistors. In such environments, radiation induces a large increase in bipolar base...
Published: 8/9/2024   |   Inventor(s): Hugh Barnaby, Philippe Adell, Blayne Tolleson
Keywords(s): Materials and Electronics
Category(s): Physical Science, Computing & Information Technology, Environmental, Semiconductor Devices
Steep-Slope AlGaN/GaN Transistors with Threshold Switching Device
Background Conventional Si-based metal-oxide-semiconductor field-effect transistors (MOSFETs) are facing fundamental limitations as demands for increased power efficiency and integration density persist. The Boltzmann limit represents the minimum subthreshold change in gate voltage bias (VGS), 60 mV, required to effectuate a one-decade change in the...
Published: 2/23/2023   |   Inventor(s): Xuanqi Huang, Yuji Zhao, Runchen Fang, Hugh Barnaby
Keywords(s):  
Category(s): Semiconductors, Materials & Processes, Semiconductor Devices, Physical Science, Advanced Materials/Nanotechnology
Film Bulk Acoustic Resonator Based Radiation Sensors
Ionizing radiation sensing has many applications in a variety of industries. Low dose sensing is important for nuclear materials detection and security. Some space applications require measurement of the flux and direction of high energy radiation. Furthermore, it is essential to determine the exact location and amount of radiation directed...
Published: 2/23/2023   |   Inventor(s): Hongyu Yu, Jonathon Oiler, Hugh Barnaby
Keywords(s):  
Category(s): Physical Science, Medical Diagnostics/Sensors
Sub-MM Wireless Ionizing Radiation Detector
Radiation dosimeters are devices used to measure exposure to ionizing radiation such as, X-rays, alpha and beta particles, and gamma rays. The damage that this radiation can cause to a material (e.g., human tissue) is typically cumulative, related to the total ionizing dose received. Therefore, workers who are exposed to ionizing radiation are...
Published: 2/23/2023   |   Inventor(s): Hugh Barnaby, James Aberle, Adam Mahan, Hongyu Yu, Jonathon Oiler
Keywords(s):  
Category(s): Physical Science, Semiconductors, Materials & Processes