a fully 3-d bie evaluation of the resistance and ...€¦ · inductance of on-board and on-chip...
TRANSCRIPT
![Page 1: A FULLY 3-D BIE EVALUATION OF THE RESISTANCE AND ...€¦ · INDUCTANCE OF ON-BOARD AND ON-CHIP INTERCONNECTS Martijn Huynen, Daniël De Zutter, Dries Vande Ginste DEPARTMENT OF INFORMATION](https://reader034.vdocuments.net/reader034/viewer/2022042120/5e996fca734afd2b1c3f840d/html5/thumbnails/1.jpg)
A FULLY 3-D BIE EVALUATION OF THE RESISTANCE AND
INDUCTANCE OF ON-BOARD AND ON-CHIP INTERCONNECTS
Martijn Huynen, Daniël De Zutter, Dries Vande Ginste
DEPARTMENT OF INFORMATION TECHNOLOGY
RESEARCH GROUP ELECTROMAGNETICS
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OUTLINE
• Motivation
• Proposed technique
• Examples
• Conclusions
2
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OUTLINE
• Motivation
• Proposed technique
• Examples
• Conclusions
3
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MOTIVATION
Smaller & faster electronics
New solutions such as 3-D ICs
4
Increasing complexity,
functionality,
power constraints, …
signal integrity,
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MOTIVATION
Many challenges
Rigorous modeling increasingly essential !
5
Heat distribution Signal integrity (crosstalk, dispersion, distortion, …)
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PROBLEM STATEMENT
- Finite conductivity, skin effect, proximity effect
difficult to model broadband
- Solved in 2-D [1, 2] using a Dirichlet-to-Neumann operator
- Open question in 3-D
- Recently proposed for 3-D cylinders and cuboids [3, 4]
6
[1] D. De Zutter and L. Knockaert, IEEE MTT, vol. 53, pp. 2526-2538 (2005)
[2] T. Demeester and D. De Zutter, IEEE MTT, vol. 56, pp. 1649-1660 (2008)
[3] M. Huynen, M. Gossye, D. De Zutter and D. Vande Ginste, IEEE AWPL, vol. 16, pp. 1052-1055 (2017)
[4] M. Huynen, D. De Zutter and D. Vande Ginste, accepted for IEEE MWCL
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OUTLINE
• Motivation
• Proposed technique
• Examples
• Conclusions
7
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PROPOSED TECHNIQUE
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Original situation
Field equivalence principle
Equivalent situation
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PROPOSED TECHNIQUE
9
Electric field integral equation
Test and basis functions
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PROPOSED TECHNIQUE
10
Discretization
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PROPOSED TECHNIQUE
11
Discretization
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PROPOSED TECHNIQUE
12
Discretization
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PROPOSED TECHNIQUE
13
Discretization
Via partial integration:
Average potential
on each rectangle
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PROPOSED TECHNIQUE
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Circuit interpretation
Still 2 sets of unknowns:
-
-
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PROPOSED TECHNIQUE
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3-D Dirichlet-to-Neumann operator [3, 4]
[3] M. Huynen, M. Gossye, D. De Zutter and D. Vande Ginste, IEEE AWPL, vol. 16, pp. 1052-1055 (2017)
[4] M. Huynen, D. De Zutter and D. Vande Ginste, accepted at IEEE MWCL
Differential surface admittance operator
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PROPOSED TECHNIQUE
16
Normalization of
Magnetic eigenfunctions ofWavenumber of
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PROPOSED TECHNIQUE
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Discretization
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PROPOSED TECHNIQUE
18
Circuit interpretation
Only 1 set of unknowns left:
-
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OUTLINE
• Motivation
• Proposed technique
• Examples
• Conclusions
19
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EXAMPLE: PARALLEL CONDUCTORS
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Normalized resistance = total resistance (3-D) / length
Pouillet DC resistance
Proximity effect fan out
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EXAMPLE: PARALLEL CONDUCTORS
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Normalized inductance
[1] D. De Zutter and L. Knockaert, IEEE MTT, vol. 53, pp. 2526-2538 (2005)
Increasing length 2-D results
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EXAMPLE: RIGHT-ANGLED CORNER
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right-angled corner cuboid
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EXAMPLE: RIGHT-ANGLED CORNER
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right-angled corner
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EXAMPLE: RIGHT-ANGLED CORNER
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Proximity effect crossover
Resistance
Finite difference method (FDM) DC value
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EXAMPLE: RECTANGULAR LOOP
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EXAMPLE: RECTANGULAR LOOP
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[5] U. R. Patel, S. V. Hum and P. Triverio, IEEE 21st Workshop on SPI, pp. 1-4 (May 2017)
Resistance
Confirmation of rigorous modeling
of 3-D effects
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EXAMPLE: RECTANGULAR LOOP
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[5] U. R. Patel, S. V. Hum and P. Triverio, IEEE 21st Workshop on SPI, pp. 1-4 (May 2017)
Inductance
Faulty meshing unphysical kink
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EXAMPLE: RECTANGULAR LOOP
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Resistance
Smaller loop stronger proximity effect
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EXAMPLE: RECTANGULAR LOOP
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Inductance
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OUTLINE
• Motivation
• Proposed technique
• Examples
• Conclusions
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CONCLUSIONS
Novel 3-D interconnect modeling tool Based on BIE (without volume meshing)
Fully 3-D differential surface admittance operator
31
Validation and applications Application to PCB and IC interconnect structures
Accurate modeling of corners
Broadband extraction of R- and L-parameters
Thoroughly compared to industry standards
⇒ Rigorous approach for skin effect, proximity effect, etc. in 3-D
interconnects
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FURTHER READING
2-D:D. De Zutter and L. Knockaert, “Skin effect modeling based on a differential surface admittance operator”, IEEE MTT, vol. 53, pp. 2526-
2538 (2005)
T. Demeester and D. De Zutter, “Quasi-TM Transmission Line Parameters of Coupled Lossy Lines Based on the Dirichlet to Neumann
Boundary Operator”, IEEE MTT, vol. 56, pp. 1649-1660 (2008)
3-D:M. Huynen, M. Gossye, D. De Zutter and D. Vande Ginste, “A 3-D Differential Surface Admittance Operator for Lossy Dipole Antenna
Analysis”, IEEE AWPL, vol. 16, pp. 1052-1055 (2017)
M. Huynen, D. De Zutter and D. Vande Ginste, “Boundary integral equation study of the influence of finite conductivity on antenna
radiation using a 3-D differential surface admittance operator”, ACES Symposium - Italy (March 2017)
M. Huynen, D. De Zutter and D. Vande Ginste, “Rigorous full-wave resistance and inductance computation of 3-D interconnects”,
accepted at IEEE MWCL
32
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Martijn HuynenPhD student
ELECTROMAGNETICS GROUP
T +32 9 331 48 81
www.ugent.be
www.imec.be
Universiteit Gent
@ugent
Ghent University