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Diode: Reverse bias

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A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...

Reversible and Irreversible Processes

Reversible and Irreversible Processes

The thermodynamic processes can be classified into reversible and irreversible processes. The processes that can be restored to their initial state are called reversible processes. It is only possible if the process is in quasi-static equilibrium, i.e., it takes place in infinitesimally small steps, and the system remains at equilibrium However, these are ideal processes and do not occur naturally. An ideal system undergoing a reversible process is always in thermodynamic equilibrium within...

Modeling of Diode Reverse Characteristics

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Related Experiment Video

Updated: Jan 28, 2026

A Method to Study Adaptation to Left-Right Reversed Audition

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

A Novel Technique for Essure Reversal.

Nisse V Clark¹, Jon I Einarsson¹

¹Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Boston, Massachusetts, USA.

JSLS : Journal of the Society of Laparoendoscopic Surgeons

|March 9, 2019

Summary

Essure reversal surgery offers a new method for removing the Essure device and restoring fallopian tube patency. Further research is needed to confirm pregnancy outcomes after this sterilization reversal procedure.

Keywords:

Essure removal Sterilization reversal Tubouterine anastomosis

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Last Updated: Jan 28, 2026

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Area of Science:

Reproductive medicine
Minimally invasive gynecologic surgery

Background:

Growing demand for Essure sterilization device removal due to adverse symptoms.
Some women seek Essure reversal to restore fertility.

Observation:

A novel technique combining laparoscopy and hysteroscopy for simultaneous Essure removal and tubal reimplantation.
Three cases of Essure reversal using this technique were reported.

Findings:

All three procedures were uncomplicated.
Restoration of tubal patency was confirmed by hysterosalpingogram.
No pregnancies were reported within 4-10 months of follow-up.

Implications:

Essure reversal is a feasible option for device removal and fertility restoration.
Additional data on pregnancy success rates are required.