Breakdown Region
Breakdown Region - Related Videos
10:17
Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
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Cited by 18 •
2014
Laser-induced breakdown spectroscopy performed on thin organ and tumor tissue successfully detected natural elements and artificially injected gadolinium (Gd), issued from Gd-based nanoparticles. Images of chemical elements reached a resolution of 100 μm and quantitative sub-mM sensitivity. The compatibility of the setup with standard optical microscopy emphasizes its potential to provide multiple images of a same biological tissue.
01:24
Breakdown of the Phillips Curve (1970s)
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2026
During the 1960s, a stable trade-off between the inflation rate and the unemployment rate was observed, as represented by the Phillips curve. According to this relationship, low unemployment was generally associated with high inflation, while high unemployment was associated with low inflation. However, during the 1970s, this relationship broke down.A sharp rise in oil prices in 1973 led to higher production costs across various industries. At the same time, unemployment also increased,...
09:40
Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown
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Cited by 9 •
2014
Time-resolved atomic and diatomic molecular species are measured using LIBS. The spectra are collected at various time delays following the generation of optical breakdown plasma with Nd:YAG laser radiation and are analyzed to infer electron density and temperature.
01:03
IR Frequency Region: Fingerprint Region
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2024
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1. The...
07:18
Investigating Intestinal Barrier Breakdown in Living Organoids
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Cited by 13 •
2020
Here we describe a technique to quantify the barrier integrity of small intestinal organoids. The fact that the method is based on living organoids enables the sequential investigation of different barrier integrity modulating substances or combinations thereof in a time-resolved manner.
FAQs
Two carrier-generation mechanisms can account for conduction in the breakdown region. Zener tunneling releases carriers directly through the semiconductor’s strong electric field, whereas avalanche multiplication produces additional carriers through a multiplication process. These mechanisms explain why reverse-bias current changes so abruptly and give engineers a physical basis for interpreting a device’s voltage-current characteristic.
The electric field determines when reverse-bias conduction changes markedly. As reverse-bias voltage increases, the field can become strong enough to activate either tunneling or carrier multiplication. Breakdown voltage therefore marks an important design boundary, while the associated current determines whether the device operates within its intended limits. Both values must be considered together.
Current limiting is essential because the sharp current increase can otherwise expose the semiconductor or surrounding circuit to excessive current. A limiting circuit constrains the operating condition while engineers observe or use breakdown behavior. This allows a device to function as a regulator, reference, or protection element without treating unlimited current as a normal operating condition.
To examine a breakdown characteristic, engineers apply reverse-bias voltage under a current-limited condition and monitor the resulting current. They identify the region where a small voltage change corresponds to a sharp current increase, then record the associated breakdown voltage and current range. This characterization connects measured device behavior with circuit-selection and reliability decisions.
Breakdown-region behavior supports several engineering functions rather than a single circuit type. In voltage regulators and reference circuits, the characteristic provides a controlled voltage-current behavior for power-management designs. In surge protectors and transient-voltage suppressors, the same region is used to address abnormal voltage events. The intended application determines which operating limits matter most.
In engineering design, breakdown data link semiconductor physics to system-level protection. Designers must match a device’s breakdown voltage and current limits to the electrical conditions expected in the circuit. That relationship is especially important when a component may encounter reverse-bias transients, because selecting only by voltage or only by current leaves a key reliability constraint unaddressed.