New Equipment | Industrial Automation
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New Equipment | Industrial Automation
Contact :Sandy Lin Email: unity@mvme.cn Mob/Whatsapp :+ 86 18020776786 Tel : +86 592 5165503 Skype: onlywnn_1 Wechat : mooreplc website : www.salesplc.com PRODUCT PARAMETERS 1.Shipping will be made&nb
Technical Library | 2015-05-21 18:46:31.0
In this work the reliability of an embedded planar capacitor laminate under temperature and voltage stress is investigated. The capacitor laminate consisted of an epoxy-BaTiO3 composite sandwiched between two layers of copper. The test vehicle with the embedded capacitors was subjected to a temperature of 125oC and a voltage bias of 200 V for 1000 hours. Capacitance, dissipation factor, and insulation resistance were monitored in-situ. Failed capacitors exhibited a sharp drop in insulation resistance, indicating avalanche breakdown. The decrease in the capacitance after 1000 hours was no more than 8% for any of the devices monitored. The decrease in the capacitance was attributed to delamination in the embedded capacitor laminate and an increase in the spacing between the copper layers.
SMTnet Express, May 21, 2015, Subscribers: 22,770, Members: Companies: 14,358, Users: 38,224 Reliability of Embedded Planar Capacitors under Temperature and Voltage Stress Mohammed A. Alam, Michael H. Azarian, Michael Osterman and Michael Pecht
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