ELDO-COMSOL based 3D electro-thermal simulations of power semiconductor devices

Author

De Falco, G. ; Riccio, M. ; Romano, Gianmarco ; Maresca, L. ; Irace, A. ; Breglio, G.

Author_Institution

Dept. of Electr. Eng. & Inf. Technol., Univ. of Naples Federico II, Naples, Italy

fYear

2014

fDate

9-13 March 2014

Firstpage

35

Lastpage

40

Abstract

In this work we present a novel simulation environment for analysis of electro-thermal interaction in power semiconductor devices. The developed solution is based on the joint use of ELDO-COMSOL simulators in an iterative scheme between an electrical 2D SPICE network and 3D FEM thermal solver. The power device is described with a multi-cellular approach using proper temperature dependent SPICE library and macro-cell concept. The thermal problem is solved on a 3D domain considering the full chip structure, including package and bond-wires. In order to validate the proposed approach, simulations during short-circuit tests have been performed considering a commercial STripFET II Power-MOSFET. Finally the simulation results have been compared with transient InfraRed (IR) thermal measurements proving the effectiveness of the new simulator.

Keywords

finite element analysis; infrared imaging; iterative methods; lead bonding; power MOSFET; power semiconductor devices; semiconductor device models; 3D FEM thermal solver; ELDO-COMSOL based 3D electrothermal simulations; ELDO-COMSOL simulators; IR thermal measurements; STripFET II power MOSFET; bond wires; electrical 2D SPICE network; electrothermal interaction; iterative scheme; macrocell concept; multicellular approach; power semiconductor devices; short-circuit tests; temperature dependent SPICE library; transient infrared thermal measurements; Geometry; Integrated circuit modeling; SPICE; Solid modeling; Temperature dependence; Temperature measurement; Three-dimensional displays; Electro-thermal Simulation; Infrared-Thermography; Power-MOSFET; Short-Circuit Robustness; Thermal Runaway;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Thermal Measurement and Management Symposium (SEMI-THERM), 2014 30th Annual

Conference_Location

San Jose, CA

Type

conf

DOI

10.1109/SEMI-THERM.2014.6892212

Filename

6892212