Packaging and Evaluation of 100 kV Photoconductive Switches

J. Culpepper; A. Miller; A. Neuber; J. Dickens

doi:10.1109/PPPS34859.2019.9009753

Packaging and Evaluation of 100 kV Photoconductive Switches

J. Culpepper, A. Miller, A. Neuber, J. Dickens

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

It is desired to integrate a photoconductive semiconductor switch (PCSS) capable of holding off and switching 100 kV into a package with small parasitic inductance such that sub-nanosecond rise time is still achievable at current amplitudes of hundreds of amperes. A GaAs based PCSS is utilized, which makes it necessary to address the filamentary nature of the current, which may lead to a shortening of device lifetime. In order to design a practical package, COMSOL based 2D electric field simulations have been utilized to aid in shaping the field between the PCSS semiconductor, the electrodes, and the high voltage encapsulant. To deal with the unavoidable high field stresses in the small package, the switch is brought to voltage within a few microseconds only, and then closed. Thus, keeping the duration of voltage stress very short, and the risk of self-Triggering due to leakage current low.

Original language	English
Title of host publication	2019 IEEE Pulsed Power and Plasma Science, PPPS 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538679692
DOIs	https://doi.org/10.1109/PPPS34859.2019.9009753
State	Published - Jun 2019
Event	2019 IEEE Pulsed Power and Plasma Science, PPPS 2019 - Orlando, United States Duration: Jun 23 2019 → Jun 29 2019

Publication series

Name	IEEE International Pulsed Power Conference
Volume	2019-June
ISSN (Print)	2158-4915
ISSN (Electronic)	2158-4923

Conference

Conference	2019 IEEE Pulsed Power and Plasma Science, PPPS 2019
Country	United States
City	Orlando
Period	06/23/19 → 06/29/19

Access to Document

10.1109/PPPS34859.2019.9009753

Link to publication in Scopus

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Cite this

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title = "Packaging and Evaluation of 100 kV Photoconductive Switches",

abstract = "It is desired to integrate a photoconductive semiconductor switch (PCSS) capable of holding off and switching 100 kV into a package with small parasitic inductance such that sub-nanosecond rise time is still achievable at current amplitudes of hundreds of amperes. A GaAs based PCSS is utilized, which makes it necessary to address the filamentary nature of the current, which may lead to a shortening of device lifetime. In order to design a practical package, COMSOL based 2D electric field simulations have been utilized to aid in shaping the field between the PCSS semiconductor, the electrodes, and the high voltage encapsulant. To deal with the unavoidable high field stresses in the small package, the switch is brought to voltage within a few microseconds only, and then closed. Thus, keeping the duration of voltage stress very short, and the risk of self-Triggering due to leakage current low.",

author = "J. Culpepper and A. Miller and A. Neuber and J. Dickens",

year = "2019",

month = jun,

doi = "10.1109/PPPS34859.2019.9009753",

language = "English",

series = "IEEE International Pulsed Power Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2019 IEEE Pulsed Power and Plasma Science, PPPS 2019",

}

Culpepper, J, Miller, A, Neuber, A & Dickens, J 2019, Packaging and Evaluation of 100 kV Photoconductive Switches. in 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019., 9009753, IEEE International Pulsed Power Conference, vol. 2019-June, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE Pulsed Power and Plasma Science, PPPS 2019, Orlando, United States, 06/23/19. https://doi.org/10.1109/PPPS34859.2019.9009753

Packaging and Evaluation of 100 kV Photoconductive Switches. / Culpepper, J.; Miller, A.; Neuber, A.; Dickens, J.

2019 IEEE Pulsed Power and Plasma Science, PPPS 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 9009753 (IEEE International Pulsed Power Conference; Vol. 2019-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - It is desired to integrate a photoconductive semiconductor switch (PCSS) capable of holding off and switching 100 kV into a package with small parasitic inductance such that sub-nanosecond rise time is still achievable at current amplitudes of hundreds of amperes. A GaAs based PCSS is utilized, which makes it necessary to address the filamentary nature of the current, which may lead to a shortening of device lifetime. In order to design a practical package, COMSOL based 2D electric field simulations have been utilized to aid in shaping the field between the PCSS semiconductor, the electrodes, and the high voltage encapsulant. To deal with the unavoidable high field stresses in the small package, the switch is brought to voltage within a few microseconds only, and then closed. Thus, keeping the duration of voltage stress very short, and the risk of self-Triggering due to leakage current low.

AB - It is desired to integrate a photoconductive semiconductor switch (PCSS) capable of holding off and switching 100 kV into a package with small parasitic inductance such that sub-nanosecond rise time is still achievable at current amplitudes of hundreds of amperes. A GaAs based PCSS is utilized, which makes it necessary to address the filamentary nature of the current, which may lead to a shortening of device lifetime. In order to design a practical package, COMSOL based 2D electric field simulations have been utilized to aid in shaping the field between the PCSS semiconductor, the electrodes, and the high voltage encapsulant. To deal with the unavoidable high field stresses in the small package, the switch is brought to voltage within a few microseconds only, and then closed. Thus, keeping the duration of voltage stress very short, and the risk of self-Triggering due to leakage current low.

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