Device-Parameter Estimation with Sensitivity-Configurable Ring Oscillator
Summary :
The RO (Ring-Oscillator)-based sensor is one of easily-implementable variation sensors, but for decomposing the observed variability into multiple unique device-parameter variations, a large number of ROs with different structures and sensitivities to device-parameters is required. This paper proposes an area efficient device parameter estimation method with sensitivity-configurable ring oscillator (RO). This sensitivity-configurable RO has a number of configurations and the proposed method exploits this property for reducing sensor area and/or improving estimation accuracy. The proposed method selects multiple sets of sensitivity configurations, obtains multiple estimates and computes the average of them for accuracy improvement exploiting an averaging effect. Experimental results with a 32-nm predictive technology model show that the proposed averaging with multiple estimates can reduce the estimation error by 49% or reduce the sensor area by 75% while keeping the accuracy. Compared to previous work with iterative estimation, 23% accuracy improvement is achieved.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.12 pp.2607-2613
- Publication Date
- 2015/12/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E98.A.2607
- Type of Manuscript
- Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
- Category
- Device and Circuit Modeling and Analysis
Authors
Shoichi IIZUKA
Osaka University
Yuma HIGUCHI
Osaka University
Masanori HASHIMOTO
Osaka University
Takao ONOYE
Osaka University
Keyword
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Shoichi IIZUKA, Yuma HIGUCHI, Masanori HASHIMOTO, Takao ONOYE, "Device-Parameter Estimation with Sensitivity-Configurable Ring Oscillator" in IEICE TRANSACTIONS on Fundamentals,
vol. E98-A, no. 12, pp. 2607-2613, December 2015, doi: 10.1587/transfun.E98.A.2607.
Abstract: The RO (Ring-Oscillator)-based sensor is one of easily-implementable variation sensors, but for decomposing the observed variability into multiple unique device-parameter variations, a large number of ROs with different structures and sensitivities to device-parameters is required. This paper proposes an area efficient device parameter estimation method with sensitivity-configurable ring oscillator (RO). This sensitivity-configurable RO has a number of configurations and the proposed method exploits this property for reducing sensor area and/or improving estimation accuracy. The proposed method selects multiple sets of sensitivity configurations, obtains multiple estimates and computes the average of them for accuracy improvement exploiting an averaging effect. Experimental results with a 32-nm predictive technology model show that the proposed averaging with multiple estimates can reduce the estimation error by 49% or reduce the sensor area by 75% while keeping the accuracy. Compared to previous work with iterative estimation, 23% accuracy improvement is achieved.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E98.A.2607/_p
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@ARTICLE{e98-a_12_2607,
author={Shoichi IIZUKA, Yuma HIGUCHI, Masanori HASHIMOTO, Takao ONOYE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Device-Parameter Estimation with Sensitivity-Configurable Ring Oscillator},
year={2015},
volume={E98-A},
number={12},
pages={2607-2613},
abstract={The RO (Ring-Oscillator)-based sensor is one of easily-implementable variation sensors, but for decomposing the observed variability into multiple unique device-parameter variations, a large number of ROs with different structures and sensitivities to device-parameters is required. This paper proposes an area efficient device parameter estimation method with sensitivity-configurable ring oscillator (RO). This sensitivity-configurable RO has a number of configurations and the proposed method exploits this property for reducing sensor area and/or improving estimation accuracy. The proposed method selects multiple sets of sensitivity configurations, obtains multiple estimates and computes the average of them for accuracy improvement exploiting an averaging effect. Experimental results with a 32-nm predictive technology model show that the proposed averaging with multiple estimates can reduce the estimation error by 49% or reduce the sensor area by 75% while keeping the accuracy. Compared to previous work with iterative estimation, 23% accuracy improvement is achieved. },
keywords={},
doi={10.1587/transfun.E98.A.2607},
ISSN={1745-1337},
month={December},}
Copy
TY - JOUR
TI - Device-Parameter Estimation with Sensitivity-Configurable Ring Oscillator
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2607
EP - 2613
AU - Shoichi IIZUKA
AU - Yuma HIGUCHI
AU - Masanori HASHIMOTO
AU - Takao ONOYE
PY - 2015
DO - 10.1587/transfun.E98.A.2607
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E98-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2015
AB - The RO (Ring-Oscillator)-based sensor is one of easily-implementable variation sensors, but for decomposing the observed variability into multiple unique device-parameter variations, a large number of ROs with different structures and sensitivities to device-parameters is required. This paper proposes an area efficient device parameter estimation method with sensitivity-configurable ring oscillator (RO). This sensitivity-configurable RO has a number of configurations and the proposed method exploits this property for reducing sensor area and/or improving estimation accuracy. The proposed method selects multiple sets of sensitivity configurations, obtains multiple estimates and computes the average of them for accuracy improvement exploiting an averaging effect. Experimental results with a 32-nm predictive technology model show that the proposed averaging with multiple estimates can reduce the estimation error by 49% or reduce the sensor area by 75% while keeping the accuracy. Compared to previous work with iterative estimation, 23% accuracy improvement is achieved.
ER -
English
