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This paper describes magnetic sensor technology based on the detection of Lorentz force on a micromechani-cal oscillator. Experimental results are presented based on a silicon resonator operating at 105.5 kHz with a quality factor of 13,000. Sensor operation is demonstrated using amplitude modulation (AM) and frequency modulation (FM) readout of the magnetic signal. In AM operation, the noise at the...
We present a 0.6 mm diameter, 20 μm thick epitaxially-sealed polysilicon disk resonator gyro (DRG). High Q (50,000) combined with electrostatic mode-matching and closed-loop quadrature null performed by dedicated electrode sets enables a scale-factor of 0.286 mV/(°/s) and Angle Random Walk (ARW) of 0.006 (°/s)/√Hz. Without precise control of temperature, the minimum Allan deviation is 3.29 °/hr.
We analyze ultrafast circular polarization oscillations in a commercial vertical-cavity surface-emitting laser after spin injection at room temperature. The circular polarization exhibits faster dynamics than the intensity and longer persistence than the spin relaxation time.
On-chip interconnect structures become much more complicated and dominate system performance in multi-core SoCs. Oscillation ring test is an efficient test method for most types of faults in the interconnect structures, and previous studies show that a 100% fault coverage and good diagnosis resolution for various fault models is achievable. The test time of oscillation ring test is decided by the...
Temperature (T) dependent transport measurements of cylindrical shaped gate-all-around silicon nanowire MOSFETs (SNWFETs) were performed. Single electron tunneling behaviors were observed at 4.2 K and one of the devices exhibited anomalously strong current peak which survived even at room temperature. The observed peak was interpreted as an evidence of transport through single impurities in the channel.
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