Proceedings Article10.1109/THERMINIC.2017.8233812
Delphi-like dynamical compact thermal models using model order reduction
Brice Rogie,Lorenzo Codecasa,Eric Monier-Vinard,Valentin Bissuel,Najib Laraqi,Olivier Daniel,D. D'Amore,Alessandro Magnani,Vincenzo d'Alessandro,Niccolò Rinaldi +9 more
- 01 Sep 2017
- pp 1-6
31
TL;DR: A novel process flow for extracting Delphi-inspired BCI DCTMs is investigated and the results show that for a similar accuracy, the integration of MOR technique allows minimizing the time-consuming numerical simulations and so to reduce the thermal network creation time by 80%.
read more
Abstract: Delphi-like Boundary Condition Independent (BCI) Compact Thermal Models (CTMs) are the standard for modelling single die packages. However their extraction, particularly in the transient case, will be time consuming due to complex numerical simulations for a large number of external conditions. Lately, new approaches to extract a BCI Dynamical CTM (DCTM), based on Model Order Reduction (MOR) have been developed. Despite the numerous advantages of this recent method, the lack of numerical tools to integrate reduced-order models (ROM) makes it difficult to use at board level. In this study, a novel process flow for extracting Delphi-inspired BCI DCTMs is investigated. Thus a detailed three-dimensional model is replaced by a BCI-ROM model using FANTASTIC matrix reduction code to generate the data used in the creation of a Delphi-style BCI DCTM. That hybrid reduction method has been applied to an industrial single-chip package, named QFN16. Its derived CTM and DCTM have been compared in term of accuracy and creation time for both approaches: in-house Delphi-inspired and MOR based. The results show that for a similar accuracy, the integration of MOR technique allows minimizing the time-consuming numerical simulations and so to reduce the thermal network creation time by 80%.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Compact Thermal Model of the Pulse Transformer Taking into Account Nonlinearity of Heat Transfer
TL;DR: In this paper, a nonlinear thermal model of pulse transformers is proposed, which takes into account differentiation in values of the temperatures of a ferromagnetic core and each winding.
28
Thermal Resistance Advanced Calculator (TRAC)
Lorenzo Codecasa,Salvatore Race,Vincenzo daAlessandro,Donata Gualandris,Arianna Morelli,Claudio Maria Villa +5 more
- 01 Sep 2018
TL;DR: A novel simulation tool, named Thermal Resistance Advanced Calculator, is presented that allows the straightforward definition of a parametric detailed thermal model of family of electronic packages with Manhattan geometry, in which anew thermal properties and/or geometrical details can vary in a chosen set.
15
Experimental Characterization of MOR-based and Delphi-like BCI DCTMs
Eric Monier-Vinard,Lorenzo Codecasa,Brice Rogie,Valentin Bissuel,Najib Laraqi,Vincenzo drAlessandro,Olivier Daniel +6 more
- 01 Sep 2018
TL;DR: In order to compare the accuracy of the DTM with that provided by both the MOR-based and the Delphi-like BCI DCTMs, a set of experimental measurements have been performed on test-board vehicles.
14
Delphi-like dynamical compact thermal models using model order reduction based on modal approach
Brice Rogie,Sébastien Grosjean,Eric Monier-Vinard,Valentin Bissuel,Frédéric Joly,Olivier Daniel,Najib Laraqi,Karine Vera +7 more
- 19 Mar 2018
TL;DR: A complementary method to create Dynamical Delphi-style CTMs (DCTMs acronym) is proposed, which promotes the replacing of the heavy computational simulations of a given detailed model by a faster reduced order model, built by the means of modal approach.
14
Connecting MOR-based boundary condition independent compact thermal models
Lorenzo Codecasa,Robin Bornoff,James Dyson,Vincenzo d'Alessandro,Alessandro Magnani,Niccolò Rinaldi +5 more
- 01 Sep 2017
TL;DR: In this paper, the interconnection of boundary condition independent compact thermal models and detailed models of heat transfer problems is shown not to be straightforward and to introduce numerical difficulties, and a novel definition of MOR-based boundary conditions independent compact models is provided, which makes their interconnection, as straightforward as the inter-connection of Delphi-like compact models.
13
References
Introduction to model order reduction
Wha Wil Schilders,Wha Wil Schilders +1 more
- 01 Jan 2008
TL;DR: It is argued that much more complex problems can be addressed by making use of current computing technology and advanced algorithms, but that there is a need for model order reduction in order to cope with even morecomplex problems.
139
An Arnoldi based thermal network reduction method for electro-thermal analysis
TL;DR: An efficient and numerically stable Arnoldi type algorithm is presented by which a multi-point moment matching approximant of the discretized thermal network is obtained and is applied to the electro-thermal analysis of an operational transconductance amplifier.
106
FAst Novel Thermal Analysis Simulation Tool for Integrated Circuits (FANTASTIC)
Lorenzo Codecasa,Vincenzo d'Alessandro,Alessandro Magnani,Niccolò Rinaldi,Peter J. Zampardi +4 more
- 04 Dec 2014
TL;DR: FANTASTIC provides a novel equivalent network suitable for use in SPICE-like circuit simulators to perform efficient thermal and electrothermal analyses and requires much less CPU time and memory storage compared to commercial simulators.
99
Matrix reduction tool for creating boundary condition independent dynamic compact thermal models
Lorenzo Codecasa,Vincenzo d'Alessandro,Alessandro Magnani,Niccolò Rinaldi +3 more
- 01 Sep 2015
TL;DR: A novel matrix reduction method for the efficient and automatic construction of boundary condition independent dynamic compact thermal models having a chosen accuracy, is proposed.
51
Why matrix reduction is better than objective function based optimization in compact thermal model creation
J. H. J. Janssen,Lorenzo Codecasa +1 more
- 01 Sep 2015
TL;DR: It is shown how the objective function optimization approach fails in the construction of boundary condition independent compact thermal models of complex Systems On Silicon in which more than two powers are allowed to arbitrarily change.
39