© LMN - 2005Workshop Nano – AR - 2 Martie 2006 Contributia Laboratorului de Metode Numerice din...

© LMN - 2005Workshop Nano – AR - 2 Martie 2006

Contributia Laboratorului de Metode Numerice din UPB la dezvoltarea

Platformei Tehnologice Europene de Nanoelectronica

Metodogii si instrumente pentru proiectarea nano-electronica automata - nEDA

Daniel IOAN, Gabriela CIOPRINA

“Politehnica” University of Bucharest -CIEAC/LMN

Numerical Methods Laboratoryhttp://www.lmn.pub.ro


Predictia ITRS nanoelectronica

90

65

45

32

22 189.3

15

234.2

40

53

0

10

20

30

40

50

60

70

80

90

100

2002 2004 2006 2008 2010 2012 2014 2016 2018 2020

semipitch[nm]

frequency[GHz]


Agenda Cercetarilor Strategice a platformei tehnologice ENIAC

1960 1980 2000 2020 2040 2060

10μm

1μm

100nm

10nm

1nm

More than Moore

More Moore RF, HV, MS

Beyond CMOS

http://www.cordis.lu/ist/eniac/


Principiile Strategiei - Viziunea LMN pentru 2010

Areas

Activities

Sectors

Attractiveness of EU science

Competitive-ness of EU

Culture of excellence

Training

Innovation

Research

Activities

Simulation

Theory

Experiment

Prof.Assoc.

Academic

Industry

Sectors

For details see http://www.lmn.pub/~daniel/strategieLMN2010

MethodsMethods


Piramida interdisciplinaritatii

Mathematics

Computer Sci, IT

Sciences

AreasAppl. Math.

Computing

Eng. Sci.

CSENumericalMethods

HPC

El.Eng.

SCEE

EDA


Proiecte de cercetare si educationale, nationale si internationale ale LMN

• FP5/IST/CODESTAR - Compact modeling of on-chip passive structures at high frequency (the etalon research project !)

• FP6/IST/CHAMELEON RF - Comprehensive High-Accuracy Modeling of EL-mg. Effects in cOmplete Nanoscale RF blocks

• FP6/NMP/ARTIC – Nature-inspired micro-fluidic manipulation using artificial cilia (during negotiation)

• FP6/HRM-MC/EST/EST3 - Early Stage Training in an Eastern European Site with Tradition in SCEE (mono-site project)

• CEEX- nEDA - Tools for Nano-Electronics Design Automation (a Romanian national research-training project)

• SCEE06 – Scientific Computation in Electrical Engineering


Parteneriatul institutional

Parteneriatul European Idustrial:• Philips, IMEC• ST, AMS• Infineon, MAGWEL• CST

Parteneriatul European Academic:noua universitati din Olanda, Germania, Belgia, Italia si Portugalia (dintre care trei din Cluster: TU/e, TUD, IST), dar si doua institute de cercetari

Parteneriatul National:• UPB/CIEAC/LMN• UTCN• INCD Fizica Tehnologica Iasi• IPA Craiova


Sinergia si complementaritatea proiectelor cu LMN partener

ETASIP

EST3COMSON

CHAMELEON RFExperimentalresults

Experimentalresults

Modelingmethods

4nEDA

nEDAPlatform

nEDAPlatform

EDAtools

EDAtools

ESR

IndustryCEEX researchers


Resurse umane si mobilitatea cercetatorilor

Research staff at PUB-CIEAC-LMN for nEDA projects:

2 RO researchers (Chameleon - IST)

2 foreign PhD students (Comson RTN)

6 foreign PhD students (EST3) and short stages

4 Romanian PhD students (CEEX)

MAGWEL, Synapto

Philips, ST, Infineon

Philips, ST, Infineon

Academic partners

Academic partners

3rd

E. U.

26 y-pers


Resursele umane si financiare ale proiectelor

Project STAFF-PUBpersxmnths

staff-totalpersxmnths

PUB(Euro)

Total (Euro)

CODESTAR 30 300 177 000 2 631 594

CHAMELEON 60 341 257 400 2 150 595

COMSON 72 (ESR) 360 167 692 1 650 000

EST3 264 (ESR) 264 587 000 587 000

4nEDA 72 (ER) 72 (ER) 343 068 343 068

SCEE 2 6 57 266 155 200

ETASIP 48 123 457 933 1 172 000

TOTAL 746 1 466 2 047 359 8 689 457


Obiectivele stiintifice ale cercetarii

Dezvoltarea de noi modele matemetice adecvate si scheme numerice si implementarea lor intr-o platforma software de demonstratie - numita nEDA (“nano Electronic Design Automation”), dedicata problemelor complexe de nanoelectronica.

Platforma nEDA va permite:• simularea cuplata a • dispozitivelor semiconductoare, • interconexiunilor, circuitelor, • campului electromagnetic, si a• efectelor termice, precum si • comparatia intre rezultatele simularii si cele ale masuratiorilor.


Componentele platformei nEDA

• MOD - Mathematical Modeling and Analysis

• SIM - Simulation Techniques for Coupled Problems

• PDAE - Simulator coupling for systems of Partial Differential-Algebraic Equations

• ROM - Model order reduction for distributed effects

• OPT - Optimization


Obiectivele tehnologice ale cercetarii

• Rezultatul studiilor: o noua metodologie verificata experimental de extragere automata a modelelor compacte ale nano-blocurilor functionale din RFIC, valabile pana la frecvente de 66 GHz.

• Metodologia va fi implementata prin instrumente software capabile sa genereze automat modele SPICE pornind de la descrierea fizica (layout), luand in considerare efecte care pana in prezent sunt neglijate.

• Cercetarea contribuie la nasterea urmatoarei generatii a tehnologiilor de proiectare nanoelectronica, robuste si eficiente, de verificare a proiectelor si micsorare a timpului si a costului de proiectare.


Diagrama EDA – etapele proiectarii RFIC

Typical RF IC design flow

Schematic

Simulation

Layout

Physical VerificationDRC, LVS

Signal IntegrityRCx, Lx, EM

Tape outTape out

Optimization

Resimulation

CellLib

Tech-nologyFile

Specification/HDLSpecification/HDL


Examplu de configuratie tipica AMS SPIRALS.gds benchmark


Formularea problemeiMain goal: to extract (SPICE) compact electromagnetic model of passive on-chip structures (defined by layout)

Description of field problem (input):• layer geometry (usual Manhattan type) within computational domain Ω (an orthogonal hexahedron) • material constant (σ, ε, μ) in every constitutive brick• boundary conditions (EEC = element of electric circuit type, with voltage or current terminal excitation)

Circuit with R, L, Cand/or

controlled sources

v1

v2

vm

i1

im

The compact model (output):• netlist (topology) and • element constant parameters (R, L, C, α, β)

of an “equivalent” circuit, which has similar terminal behavior (V-I relationship) over the frequency range of interest


Principiile FIT

Finite Integration Technique (FIT) is a numerical method to solve field problems, based on spatial discretization “without shape functions” using, intensively studied by Th. Weiland et al. since 1977:

• dual staggered orthogonal grids, (Yee type = “complex of

dual Cartesian cells”), suitable for our Manhattan geometry;

• global variables as DOFs: voltages and fluxes on grid elements, and not local field components;

• global form of field equations (neither differential form - FDM, nor weak-variational form - FEM, nor integral equations - BEM/VIE).


Principiile FIT

• Each mesh cell complies the global field equations • The discretization errors are transferred to constitutive relations


Maxwell Grid Equations (MGE)

• No discretization errors in MGE fundamental equations• They are metric-free, sparse, mimetic and conservative

DAE, without spurious modes

dt

d

ttdiv

dt

dt

divt

curl

dt

dt

divt

curl

m

qDiJJ

qD

uC'

ρD

DJH

ρD

DJH

D

Cu

B

B

B

BE

)(

0'00


Operatorii Hodge

• They are metric-dependent and they hold the discretization error.

Classical FIT (MGE+Hodge) must be improved and adapted, in order to achieve the commitments of Codestar project. We did it with ALLROM+VFS.

νm

ε

σ

MuBH

uMED

uMiEJ

describe material behavior:


dFIT - dual Finite Integration Technique

• FIT is applied two times, each of the two staggered grids are used as electric and magnetic network, as well;

• The two “dual” solutions provide lower and upper bounds for the exact one;

• The dual approach allows the accuracy control of numerical solution, providing robustness and efficiency of computation. It can be used also to control global or local adaptive mesh refinement process;

• The average of dual solutions is more accurate, it have a higher order convergence.

By dFIT, the number of nodes (and computational effort) required for a given accuracy is drastically reduced !


Scopul: de la layot (.cif ,.gds) la circuitul echivalent (SPICE)

See www.imec.be/codestar


CODESTAR GUI


Sructura 3D tipica ce va fi modelata


Concluzii

Seria de proiecte nEDA contine aspecte novatoare pentru cercetarea romaneasca:

• un domeniu (EDA/nano+info+bio) extrem de actual,

• un caracter multi si inter-disciplinar

• sinergie cu o serie de proiecte europene complementare

• obiective masurabile clare si complexe (subiecte deschise de varf - ENIAC, dotari, dezvoltarea resurselor umane, publicatii internationale, exploatare IPR, FP7)

• parteneriat de elita si beneficiari externi

• UPB – prima institutie host coordonator Marie Curie


International Conference on Scientific Computing in Electrical

Engineering SCEE 2006

Sinaia - Romania

17-21 September 2006

www.scee06.org

© LMN - 2005Workshop Nano – AR - 2 Martie 2006 Contributia Laboratorului de Metode Numerice din...

Documents

Transcript of © LMN - 2005Workshop Nano – AR - 2 Martie 2006 Contributia Laboratorului de Metode Numerice din...