Temperature dependent timing in standard cell designs

Andras Timar, M. Rencz

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper proposes a methodology to simulate temperature dependent timing in standard cell designs. Temperature dependent timing characteristics are derived from standard delay format (SDF) files that are created by synthesis tools automatically based on SPICE characterizations. In addition, a fast calculation of temperatures using the equivalent Foster RC network is presented. A case study is also presented in this paper where the temperature dependent frequency variation of a ring oscillator is simulated demonstrating the necessity of temperature dependent timing simulations. An adaptively refineable partitioning method for simulating standard cell designs logi-thermally is proposed as well. This paper also introduces recent enhancements in the CellTherm logi-thermal simulator developed in the Department of Electron Devices, BME, Hungary. Finally, the simulation results are compared and verified with the SPICE compatible ELDO analog simulator from Mentor Graphics.

Original languageEnglish
Pages (from-to)521-529
Number of pages9
JournalMicroelectronics Journal
Volume45
Issue number5
DOIs
Publication statusPublished - 2014

Fingerprint

time measurement
cells
SPICE
simulators
Temperature
Simulators
temperature
RC circuits
Electron devices
Hungary
files
format
simulation
oscillators
methodology
analogs
augmentation
rings
synthesis
electrons

Keywords

  • Electro-thermal
  • Grid
  • Keywords
  • Logi-thermal
  • Simulation
  • Temperature dependent delays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Temperature dependent timing in standard cell designs. / Timar, Andras; Rencz, M.

In: Microelectronics Journal, Vol. 45, No. 5, 2014, p. 521-529.

Research output: Contribution to journalArticle

@article{933429dadb8a4180a6874ae8a87927f9,
title = "Temperature dependent timing in standard cell designs",
abstract = "This paper proposes a methodology to simulate temperature dependent timing in standard cell designs. Temperature dependent timing characteristics are derived from standard delay format (SDF) files that are created by synthesis tools automatically based on SPICE characterizations. In addition, a fast calculation of temperatures using the equivalent Foster RC network is presented. A case study is also presented in this paper where the temperature dependent frequency variation of a ring oscillator is simulated demonstrating the necessity of temperature dependent timing simulations. An adaptively refineable partitioning method for simulating standard cell designs logi-thermally is proposed as well. This paper also introduces recent enhancements in the CellTherm logi-thermal simulator developed in the Department of Electron Devices, BME, Hungary. Finally, the simulation results are compared and verified with the SPICE compatible ELDO analog simulator from Mentor Graphics.",
keywords = "Electro-thermal, Grid, Keywords, Logi-thermal, Simulation, Temperature dependent delays",
author = "Andras Timar and M. Rencz",
year = "2014",
doi = "10.1016/j.mejo.2013.08.016",
language = "English",
volume = "45",
pages = "521--529",
journal = "Microelectronics",
issn = "0026-2692",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - Temperature dependent timing in standard cell designs

AU - Timar, Andras

AU - Rencz, M.

PY - 2014

Y1 - 2014

N2 - This paper proposes a methodology to simulate temperature dependent timing in standard cell designs. Temperature dependent timing characteristics are derived from standard delay format (SDF) files that are created by synthesis tools automatically based on SPICE characterizations. In addition, a fast calculation of temperatures using the equivalent Foster RC network is presented. A case study is also presented in this paper where the temperature dependent frequency variation of a ring oscillator is simulated demonstrating the necessity of temperature dependent timing simulations. An adaptively refineable partitioning method for simulating standard cell designs logi-thermally is proposed as well. This paper also introduces recent enhancements in the CellTherm logi-thermal simulator developed in the Department of Electron Devices, BME, Hungary. Finally, the simulation results are compared and verified with the SPICE compatible ELDO analog simulator from Mentor Graphics.

AB - This paper proposes a methodology to simulate temperature dependent timing in standard cell designs. Temperature dependent timing characteristics are derived from standard delay format (SDF) files that are created by synthesis tools automatically based on SPICE characterizations. In addition, a fast calculation of temperatures using the equivalent Foster RC network is presented. A case study is also presented in this paper where the temperature dependent frequency variation of a ring oscillator is simulated demonstrating the necessity of temperature dependent timing simulations. An adaptively refineable partitioning method for simulating standard cell designs logi-thermally is proposed as well. This paper also introduces recent enhancements in the CellTherm logi-thermal simulator developed in the Department of Electron Devices, BME, Hungary. Finally, the simulation results are compared and verified with the SPICE compatible ELDO analog simulator from Mentor Graphics.

KW - Electro-thermal

KW - Grid

KW - Keywords

KW - Logi-thermal

KW - Simulation

KW - Temperature dependent delays

UR - http://www.scopus.com/inward/record.url?scp=84901199884&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901199884&partnerID=8YFLogxK

U2 - 10.1016/j.mejo.2013.08.016

DO - 10.1016/j.mejo.2013.08.016

M3 - Article

VL - 45

SP - 521

EP - 529

JO - Microelectronics

JF - Microelectronics

SN - 0026-2692

IS - 5

ER -