A Galeria de Aplicações possui tutorias sobre o COMSOL Multiphysics® e aplicativos de demonstração pertinentes às áreas de elétrica, mecânica estrutural, acústica, escoamento e química. Você pode usar esses exemplos como um ponto de partida para o seu próprio trabalho de simulação baixando o modelo do tutorial ou o aplicativo e suas instruções. Use a função "Busca Rápida" para encontrar modelos da sua área de interesse. Para baixar os arquivos MPH, faça o login, ou se cadastre, no COMSOL Access usando uma licença válida do COMSOL, para poder baixar os arquivos MPH. Note que muitos dos exemplos disponibilizados aqui também podem ser acessados através da Application Libraries que faz parte do software COMSOL Multiphysics® e está disponível a partir do menu File.


Semiconductor Modulex

PN-Diode Circuit

This model extracts spice parameters for a silicon p-n junction diode. The spice parameters are used to create a lumped-element equivalent circuit model of a half-wave rectifier that is compared to a full device level simulation. In this example, a device model is made by connecting a 2D ... Saiba Mais

Schottky Contact

Schottky Contact This benchmark simulates the behavior of an ideal Schottky barrier diode made of a tungsten contact deposited on a silicon wafer. The resulting J-V (current density vs. applied voltage) curve obtained from the model under forward bias is compared with experimental ... Saiba Mais

Wavelength Tunable LED

This application computes the emission properties of a AlGaN/InGaN LED. The emission intensity, spectrum, and efficiency are calculated for an applied voltage or as a function of voltage over a selected range. The indium composition in the light-emitting InGaN region can be varied in ... Saiba Mais

Thermal Analysis of a Bipolar Transistor

This model demonstrates how to couple the *Semiconductor* interface to the *Heat Transfer in Solids* interface. A thermal analysis is performed on the existing [bipolar transistor model](/model/bipolar-transistor-14615) in the case when the device is operated in the active-forward ... Saiba Mais

Heterojunction Tunneling

This benchmark model simulates a graded heterojunction using the thermionic emission formulation for the charge transfer over the junction. It shows the additional contribution to the current density from the quantum tunneling effect across the potential barrier, using the WKB ... Saiba Mais

Bipolar Transistor

This model shows how to set up a simple Bipolar Transistor model. The output current-voltage characteristics in the common-emitter configuration are computed and the common-emitter current gain is determined. Saiba Mais

Heterojunction 1D

This benchmark model simulates three different heterojunction configurations under forward and reverse bias. It shows the difference in using the continuous quasi-Fermi level formulation versus the thermionic emission formulation for the charge transfer across the heterojunction. The ... Saiba Mais

Superlattice Band Gap Tool

The Superlattice Band Gap Tool helps the design of periodic structures made of two alternating semiconductor materials (superlattices). The tool uses the effective mass Schrödinger equation to estimate the electron and hole ground state energy levels in a given superlattice structure. ... Saiba Mais

Self-Consistent Schrödinger-Poisson Results for a GaAs Nanowire

This benchmark model simulates a GaAs nanowire using the self-consistent Schrödinger-Poisson theory to compute the electron density and the confining potential profiles. The predefined Schrödinger-Poisson multiphysics coupling feature is combined with the dedicated Schrödinger-Poisson ... Saiba Mais

Breakdown in a MOSFET

MOSFETs typically operate in three regimes depending on the drain-source voltage for a given gate voltage. Initially the current-voltage relation is linear, this is the Ohmic region. As the drain-source voltage increases the extracted current begins to saturate, this is the saturation ... Saiba Mais