Insulation resistance degradation mechanisms of multilayer ceramic capacitors during highly accelerated temperature and humidity stress tests

2018 ◽  
Vol 57 (11S) ◽  
pp. 11UC04 ◽  
Author(s):  
Yoshito Saito ◽  
Tomoyuki Nakamura ◽  
Kenichi Nada ◽  
Harunobu Sano
Keyword(s):  
Insulation Resistance ◽  
Degradation Mechanisms ◽  
Stress Tests ◽  
Multilayer Ceramic Capacitors ◽  
Resistance Degradation ◽  
Ceramic Capacitors ◽  
Temperature And Humidity ◽  
Multilayer Ceramic

Effects of electrochemical hydrogen charging on lead-based relaxor ferroelectric multilayer ceramic capacitors

1998 ◽  
Vol 13 (5) ◽  
pp. 1110-1112 ◽  
Author(s):  
Wanping Chen ◽  
Longtu Li ◽  
Yu Wang ◽  
Zhilun Gui
Keyword(s):  
Dielectric Loss ◽  
Ceramic Body ◽  
Negative Influence ◽  
Relaxor Ferroelectric ◽  
Insulation Resistance ◽  
Hydrogen Atoms ◽  
Multilayer Ceramic Capacitors ◽  
Ceramic Capacitors ◽  
Naoh Solution ◽  
Multilayer Ceramic

Lead-based relaxor ferroelectric multilayer ceramic capacitors (MLC's) were placed in 0.05 M NaOH solution to evolve hydrogen on their silver termination electrode by electrolysis of water. After this treatment, the MLC's failed as their insulation resistance was greatly decreased, their dielectric loss was considerably increased, and their capacitance was obviously decreased. By annealing in air at 650 °C for 30 min, the properties of the MLC's were restored. It is proposed that electrochemically generated hydrogen atoms can diffuse into the ceramic body of MLC's and undergo reduction to it, which may be one of the reasons for the negative influence of electroplating on lead-based relaxor ferroelectric MLC's.

Re-poling process for piezoelectric-based multilayer ceramic capacitors force sensor

2013 ◽  
Vol 102 (14) ◽  
pp. 142904 ◽  
Author(s):  
Keng-Ren Lin ◽  
Chih-Han Chang ◽  
Cheng-Hung Chiang ◽  
Che-Hsin Lin
Keyword(s):  
Force Sensor ◽  
Multilayer Ceramic Capacitors ◽  
Poling Process ◽  
Ceramic Capacitors ◽  
Multilayer Ceramic
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