ScholarLens Back to search
2022•IEEE Journal of the Electron Devices SocietyOpen access

LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification

Ali Saadat, Maarten L. Van de Put, Hal Edwards, William G. Vandenberghe

Open full text 13 citations

Abstract

We analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and on-resistance to realize the ideal behavior of the drift region for an LDMOS with S-FOX. Then, we find the optimized drift doping concentration minimizing the on-resistance at a given breakdown voltage. We introduce a new figure-of-merit for the drift region of a lateral device with S-FOX. We finally verify our ideal analytical findings with numerical results modeled and simulated in a commercial Technology Computer-Aided Design (TCAD).

Open-access reader

About this research paper

What this paper is about

We analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and on-resistance to realize the ideal behavior of the drift region for an LDMOS with S-FOX. Then, we find the optimized drift doping concentration minimizing the on-resistance at a given breakdown voltage. We introduce a new figure-of-merit for the drift region of a lateral device with S-FOX. We finally verify our ideal analytical findings with numerical results modeled and simulated in a commercial Technology Computer-Aided Design (TCAD).

Why it matters

OpenAlex reports 13 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

We analytically and numerically investigate the performance of Laterally-Diffused Metal-Oxide-Semiconductor (LDMOS) transistors with Semi-circular Field OXide (S-FOX) focusing on mid-voltage (30 V – 100 V) power applications. We derive an analytical relation between breakdown voltage and on-resistance to realize the ideal behavior of the drift region for an LDMOS with S-FOX. Then, we find the optimized drift doping concentration minimizing the on-resistance at a given breakdown voltage. We introduce a new figure-of-merit for the drift region of a lateral device with S-FOX. We finally verify our ideal analytical findings with numerical results modeled and simulated in a commercial Technology Computer-Aided Design (TCAD).

Key concepts: LDMOS, Figure of merit, Breakdown voltage, Ideal (ethics), Voltage, Materials science, Transistor, Field (mathematics)

Related papers

Related paper 1Related paper 2
Back to paper searchBrowse research topicsOriginal source
LDMOS Drift Region With Field Oxides: Figure-of-Merit Derivation and Verification — Research Paper | ScholarLens