Towards radiation hard (Hf, Zr)O2 based Ferroelectric Tunnel Junctions nonvolatile memory
presentation on LDRD work on ferroelectric memory
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presentation on LDRD work on ferroelectric memory
Poster displaying results of Ion Beam Lab testing of non-Sandia test structures.
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Stress state in toriconical structure of constant wall thickness
Presentation of results for the discontinuity stresses in pressure vessels due to changes in geometry or thickness
A convenient, three-step fabrication process, with a p-type layer of gallium arsenide vapor deposited on a starting wafer of germanium, is used to produce heterojunction-homojunction p-n-p transistors. These are of high quality with good injection efficiency and low capacitance.
Thin, polycrystalline, cadmium telluride solar cells
Diffused n-on-p silicon particle detectors were irradiated with 1-Mev electrons, and with 31-Mev and 8.2-Mev protons. The detector capacitance was observed to increase with electron irradiation and to decrease with proton irradiation. A physical interpretation is given in terms of defect energy levels known to be introduced in silicon by irradiation. Defect ionization states are taken to be characteristic of the space-charge region, rather than of bulk silicon. The relation to other studies of damage in semiconductor particle detectors is pointed out, considering differences in the types of detector and irradiation used. The significance of these results is discussed for detector applications where the damage threshold is exceeded.
Thermal stress in thin walled shell joint of missile intertank
Compression buckling of shell of revolution under axial compression - shell stability
Effects of surface states and grain boundaries on free carrier concentration, mobility, and free path of charge carriers in thin films - Design and fabrication of thin film electronic devices
Thin film vacuum deposition semiconductors, electron tunneling devices, and field effect transistors
Two-dimensional analog model and 1/6 reduced scale model to study bending stress concentrations, strains, and displacements in Y-ring of Saturn V S-IV liquid oxygen container
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Miniature transducers involve the use of appropriate commercial epoxy resins. Design protects the sensitive semiconductor surface from ambients and excludes an air space in the device capsule.
Miniature piezojunction pressure transducer incorporating GaSb and GaAs tunnel diodes
Allowing a liquid to seep through a long crack in glass provides means for restricting its flow for long periods without attention. The length of the crack prevents the plugging to which capillaries are susceptible.
Deep trapping levels caused by ion implantation doping, discussing level effects on electrical characteristics of zinc implanted GaAs diodes