Electromechanical Resonances in Ceramic Capacitors and Their Use for Rapid Nondestructive Testing

Boser, O.; Kellawon, P.; Geyer, Richard G.

doi:10.1111/j.1151-2916.1989.tb06075.x

Cited by 22 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…40,41 However, it is un- FIG. Among the delaminationinduced fissures, that in plate 1 was the widest whose size approached the thickness of electrode at the PIE-PEE junction.…”

Section: Delaminationmentioning

confidence: 99%

Fatigue responses of lead zirconate titanate stacks under semibipolar electric cycling with mechanical preload

Wang

Cooper

Lin

et al. 2010

Journal of Applied Physics

View full text Add to dashboard Cite

Phase diagrams, dielectric response, and piezoelectric properties of epitaxial ultrathin (001) lead zirconate titanate films under anisotropic misfit strains Lead zirconate titanate ͑PZT͒ stacks that had an interdigital internal electrode configuration were tested to more than 10 8 cycles. A 100 Hz semibipolar sine wave with a field range of +4.5/ −0.9 kV/ mm was used in cycling with a concurrently-applied 20 MPa preload. Significant reductions in piezoelectric and dielectric responses were observed during the cycling depending on the measuring condition. Extensive partial discharges were also observed. These surface events resulted in the erosion of external electrode and the exposure of internal electrodes. Sections prepared by sequential polishing technique revealed a variety of damage mechanisms including delaminations, pores, and etch grooves. The scale of damage was correlated with the degree of fatigue-induced reduction in piezoelectric and dielectric responses. The results from this study demonstrate the feasibility of using a semibipolar mode to drive a PZT stack under a mechanical preload and illustrate the potential fatigue and damages of the stack in service.

show abstract

“…40,41 However, it is un- FIG. Among the delaminationinduced fissures, that in plate 1 was the widest whose size approached the thickness of electrode at the PIE-PEE junction.…”

Section: Delaminationmentioning

confidence: 99%

Fatigue responses of lead zirconate titanate stacks under semibipolar electric cycling with mechanical preload

Wang

Cooper

Lin

et al. 2010

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…This can be done without time-consuming preparation and destruction of the device. O. Boser 18 proposed such a test for the detection of delamination from empirical measurements. With the simulations presented here, it can be extended to other defects as well.…”

Section: (5) Simulation Of the Superposition Of Two Perpendicular Cracksmentioning

confidence: 99%

Finite‐Element Analysis of Ceramic Multilayer Capacitors: Modeling and Electrical Impedance Spectroscopy for a Nondestructive Failure Test

Prume

Waser

Franken

et al. 2000

Journal of the American Ceramic Society

View full text Add to dashboard Cite

The opportunities are introduced to calculate the electrical, mechanical, and thermal couplings of ceramic multilayer capacitors (MLCs) with the finite-element method. The results may lead to improvements in the production, integration, and operation of MLCs. In this paper, a comparison is given of calculations and measurements of electromechanical resonances in the impedance spectra of MLCs. The simulation of defective capacitors with three different types of assumed faults reveals the changes in the impedance spectra due to these defects. This allows the prediction of flaws in MLCs based on measurement of the impedance spectra.

show abstract

“…The energy of SAW is affected by losses that include mechanical, dielectric, and piezoelectric losses. For anisotropic materials, we can introduce the viscosity factor

, dielectric loss factor

, and piezoelectric loss factor

to consider these losses for the device, and, in this case,

, and

are shown in plural forms [ 15 , 16 , 17 ].

where

and

represent the components of each tensor.…”

Section: Theory and Simulationmentioning

confidence: 99%

High-Performance SAW Resonator with Spurious Mode Suppression Using Hexagonal Weighted Electrode Structure

Liu,

Wang,

Zhang

et al. 2023

Sensors

View full text Add to dashboard Cite

Surface acoustic wave resonators are widely applied in electronics, communication, and other engineering fields. However, the spurious modes generally present in resonators can cause deterioration in device performance. Therefore, this paper proposes a hexagonal weighted structure to suppress them. With the construction of a finite element resonator model, the parameters of the interdigital transducer (IDT) and the area of the dummy finger weighting are determined. The spurious waves are confined within the dummy finger area, whereas the main mode is less affected by this structure. To verify the suppression effect of the simulation, resonators with conventional and hexagonal weighted structures are fabricated using the micro-electromechanical systems (MEMS) process. After the S-parameter test of the prepared resonators, the hexagonal weighted resonators achieve a high level of spurious mode suppression. Their properties are superior to those of the conventional structure, with a higher Q value (10,406), a higher minimum return loss (25.7 dB), and a lower ratio of peak sidelobe (19%). This work provides a feasible solution for the design of SAW resonators to suppress spurious modes.

show abstract

Electromechanical Resonances in Ceramic Capacitors and Their Use for Rapid Nondestructive Testing

Cited by 22 publications

References 5 publications

Fatigue responses of lead zirconate titanate stacks under semibipolar electric cycling with mechanical preload

Fatigue responses of lead zirconate titanate stacks under semibipolar electric cycling with mechanical preload

Finite‐Element Analysis of Ceramic Multilayer Capacitors: Modeling and Electrical Impedance Spectroscopy for a Nondestructive Failure Test

High-Performance SAW Resonator with Spurious Mode Suppression Using Hexagonal Weighted Electrode Structure

Contact Info

Product

Resources

About