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Related Concept Videos

Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
Series Resonance01:17

Series Resonance

The RLC circuit impedance is defined as the ratio of the supply voltage to the circuit current. Resonance in such a circuit occurs when the imaginary part of this impedance equals zero. This specific condition means that the inductive reactance is exactly equal to the capacitive reactance. The frequency at which this happens is known as the resonant frequency. Mathematically, the resonant frequency is inversely proportional to the square root of the product of the inductance (L) and capacitance...
Frequency Response of BJT01:24

Frequency Response of BJT

The frequency response of a Bipolar Junction Transistor (BJT) in a common-emitter configuration is critical to its functionality, especially in applications involving amplification of alternating current (AC) signals. This response can be analyzed through low-frequency and high-frequency equivalent circuits, considering various internal parameters and external conditions.
Low-Frequency Response: At low frequencies, the behavior of the BJT is determined by its DC bias point, which is set by the...
Bipolar Junction Transistor01:22

Bipolar Junction Transistor

Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational characteristics.
The structure...
Parallel Resonance01:23

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
BJT Amplifiers01:14

BJT Amplifiers

Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role extends...

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Fabrication and Characterization of Superconducting Resonators
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Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

The resonant body transistor.

Dana Weinstein1, Sunil A Bhave

  • 1Cornell University, Ithaca, New York 14853, USA. dana@mtl.mit.edu

Nano Letters
|February 26, 2010
PubMed
Summary
This summary is machine-generated.

This study presents the resonant body transistor (RBT), a novel silicon nanoelectromechanical resonator. This device achieves high frequencies and quality factors for advanced electronic applications.

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Area of Science:

  • Nanoelectromechanical Systems (NEMS)
  • Solid-State Physics
  • Electrical Engineering

Background:

  • Nanoelectromechanical resonators offer high frequency operation and quality factors.
  • Field-effect transistor (FET) sensing provides sensitive signal detection.
  • Integrating sensing directly into resonators is challenging.

Purpose of the Study:

  • To introduce and demonstrate the resonant body transistor (RBT), a novel NEMS device.
  • To combine the advantages of FET sensing with high-frequency NEMS resonators.
  • To enable CMOS integration for advanced electronic applications.

Main Methods:

  • Fabrication of a silicon-based dielectrically transduced nanoelectromechanical resonator.
  • Embedding a sense transistor directly within the resonator body.
  • Characterization of the device's resonant frequency and quality factor.

Main Results:

  • Demonstration of a bulk-mode resonant body transistor operating at 11.7 GHz.
  • Achieved a high quality factor (Q) of 1830 for the resonator.
  • Established the highest frequency acoustic resonance measured to date on a silicon wafer.

Conclusions:

  • The resonant body transistor (RBT) successfully integrates FET sensing with NEMS resonators.
  • RBTs offer >10 GHz frequencies and high Q factors, suitable for CMOS integration.
  • This technology paves the way for on-chip clock generation, quantum applications, and high-sensitivity measurements.