ESD Susceptibility Evaluation on Capacitive Fingerprint Module

Abstract

This paper reports on an investigation of ESD stresses on a fingerprint module. It shows that sparking to the flex connector, dielectric breakdown of the insulating layers, and transient electric and magnetic fields can cause damage. Test methods and simulation models are shown. An ESD generator and ESD field probe were used to expose the fingerprint module to currents and electromagnetic fields. Breakdown of the top insulating layer was observed. Damage due to ESD induced H-field injection occurred A 1 kΩ resistively grounded ring is proposed as an ESD protection solution for the fingerprint module system. Its effect on the discharge current is shown via simulation.

Meeting Name

2017 IEEE International Symposium on Electromagnetic Compatibility & Signal/Power Integrity (2017: Aug. 7-11, Washington, DC)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Electric Discharges; Electric Equipment Protection; Electromagnetic Compatibility; Electromagnetic Fields; Electrostatic Discharge; Electrostatic Generators; Insulating Materials; Probes; Testing; Discharge Currents; Electric and Magnetic Fields; ESD Protection; Field Injection; Fingerprint Module; Insulating Layers; Module Systems; Susceptibility Evaluations; Electrostatic Devices; ESD Probes

International Standard Book Number (ISBN)

978-1-5386-2231-5; 978-1-5386-2229-2

International Standard Serial Number (ISSN)

2158-1118

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Aug 2017

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