The design of a preamplifier for use with a piezoelectric transducer is generally approached from the point of view that an extremely high input impedance is required to obtain low frequency response. However, piezoelectric transducers are essentially charge generators and this fact may be utilized in designing preamplifiers to be...
The selective masking effect of a thermally grown layer of silicon
dioxide has been widely utilized as a technique for controlling the
geometry and impurity concentration in semi-conductor device technology.
It is also recognized that the passivation of the silicon surface
by the vitreous silicon dioxide envelope protects the underlying...
Conventional bi-polar transistors are inherently low input
impedance devices. Transistor amplifiers have been designed
which will present high input impedance, but the frequency response
is limited to low frequencies, hundreds of kilocycles.
This thesis investigates both field effect transistors and
positive feedback as applied to high input impedance wide band...
For many applications it is desirable to be able to experimentally determine the impulse response of a linear system while it is in operation. Use of correlation techniques allows this to be done
without noticeably disturbing the quiescent output value of the system.
An impulse response measurement apparatus is designed...
This paper is a study of the design of an integrated MOS addressing
circuit by using the modified two-phase dynamic shift register. This modified circuit is compared to the conventional two-phase
dynamic SR and discussed briefly. The resulting circuit shows
several advantages to improve the essential conditions of integrated
circuit...
The exponential characteristic of the base-emitter
Junction in bipolar transistors was used to make an
accurate and fairly temperature independent multiplier.
Using hybrid-pi transistor models and ECAP, a
bandwidth of 350 MHz was predicted. Linearity is
limited by emitter degeneration in the input differential
stage rather than by the small...
The digital revolution has brought information to every corner of our daily lives. Inexpensive and flexible integrated circuits are needed for this continuing revolution. Silicon technology, the current workhorse of microelectronic industry, is far from inexpensive and flexible. Researchers are taking several different routes to achieve this goal. Amorphous silicon...
A class of high-performance thin-film transistor (TFT) channel materials has emerged
involving oxides composed of heavy-metal cations (HMCs) with (n-1)d¹⁰ns⁰ (n≥4)
electronic configurations. This thesis is devoted to the pursuit of three topics involving
the development of these materials for TFT applications: modeling TFT currentvoltage
characteristics, an exploratory method for...