Low-dimensional electronic materials offer a platform to observe biological processes with unprecedented spatial and temporal resolution. Carbon nanotubes (CNTs) are the closest physical analog to an ideal 1D system and can be scaled and integrated into multiplexed electronic circuitry. The molecular structure of a CNT is also biocompatible, making them...
Low temperature noise measurements on junction field-effect
transistors tend to substantiate a theory of low frequency field-effect
transistor noise based on the presence of generation centers in the
gate-channel depletion region. Measurements of device noise voltage
versus temperature reveal pronounced maxima and minima over the
temperature range of 300° K...
This thesis deals with 1/f noise in p-MOS, bipolar, and lateral bipolar transistors. Experimental measurements determine the appropriate 1/f noise for MOSFET's, bipolar transistors and lateral bipolar transistors. The literature on 1/f noise in p-MOSFETs, bipolar transistors and lateral bipolar transistors is reviewed. The two main sources of low frequency...
Full integration of CMOS low noise amplifiers (LNA) presents a challenge for low
cost CMOS receiver systems. A critical problem faced in the design of an RF CMOS LNA
is the inaccurate high-frequency noise model of the MOSFET implemented in circuit
simulators such as SPICE. Silicon-based monolithic inductors are another...
This paper is concerned with the design of a 21-bit
metal-oxide-semiconductor field-effect transistor (MOSFET)
integrated circuit static shift register.
This circuit consists of three separate 1, 4, and
16-bit static shift registers constructed on a single
monolithic chip, each with independent input and output
terminals.
Type D flip-flops are used...
Split and normal gate A1GaAs /GaAs MODFETs were fabricated along with
the ohmic test structures and the Hall bar geometries. The DC characteristics of
normal gate transistors were evaluated at room temperature and at 77K and the
threshold voltages were extracted from the measurements and compared to the
theoretical results....
As Si MOS approaches its maximum limits in speed and bandwidth, new
devices are desired to meet the needs of high speed communications and signal
processing. A device that exhibits superior performance to Si MOS, BJT, and
GaAs technology is the HEMT (high electron mobility transistor).
The HEMT offers superior...