Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2007-01-15
2010-11-30
Proctor, Jason (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S001000, C703S006000
Reexamination Certificate
active
07844421
ABSTRACT:
The present invention is a process for simulating a SAW device, while taking into account the thickness of the substrate. An aspect of the present invention is simulating a traveling surface acoustic wave in a periodic waveguide. The surface acoustic wave is simulated by analyzing an upper portion of the waveguide including a periodic array of electrodes using a periodic finite element method. The simulation further involves analyzing a lower portion of the waveguide including a bottom of the waveguide with an analytic method.
REFERENCES:
patent: 5604891 (1997-02-01), Burnett et al.
patent: 5604893 (1997-02-01), Burnett et al.
patent: 5963459 (1999-10-01), Burnett et al.
patent: 6301192 (2001-10-01), Reise
patent: 6687659 (2004-02-01), Shen
patent: 2002/0035456 (2002-03-01), Cremers et al.
patent: 2005/0275696 (2005-12-01), Miyazawa et al.
patent: 2006/0149513 (2006-07-01), Yoon
G.W. Farnell, “Physical Acoustics”, Principles and Methods, “Properties of Elastic Surface Waves” 1970, 6:109-166, Academic Press, New York, N.Y.
M. Koshiba et al., “Finite Element Solution of Periodic Waveguides for Acoustic Waves”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1987, 34(4):472-477, IEEE New York, N.Y.
Koji Hasegawa et al., “Hybrid Finite Element Analysis of Leaky Surface Acoustic Waves in Periodic Waveguides”, Japanese Journal of Applied Physics, Part 1, No. 5B, 1996, 35:2997-3001, The Institute of Pure and Applied Physics, Tokyo, Japan.
V. Lacroix et al., “An iterative Defect-Correction Type Meshless Method for Acoustics”, International Journal for Numerical Methods in Engineering, 2003, pp. 2131-2146.
S. Li et al., “Meshfree and Particle Methods and Their Applications”, Appl. Mech. Rev., vol. 55, No. 1, Jan. 2002, pp. 1-34.
S. Suleau, et al. “One-Dimensional Dispersion Analysis for the Element-Free Galerkin Method for the Helmholtz Equation”, International Journal for Numerical Methods in Engineering, Int. J. Numer. Meth. Engng. 2000; pp. 1169-1188.
J. Jung, et al., “Vibration Mode Analysis Bulk Acoustic Wave Resonator Using Finite Element Method”, 2001 IEEE Ultrasonics Symposium, pp. 847-850.
J. Hoffelner, et al., “Calculation of Acoustic Streaming Velocity and Radiation Force Based on Finite Element Simulations of Nonlinear Wave Propagation”, 2000 IEEE Ultrasonics Symposium, 2000, pp. 585-588.
J. Stewart, et al., “Finite Element Modeling of the Effects of Mounting Stresses on the Frequency Temperature Behavior of Surface Acoustic Wave Devices”, 1997 IEEE Ultrasonics Symposium, pp. 105-111.
J. S. Chen, et al., “Large Deformation Analysis of Rubber Based on a reproducing Kernel Particle Method”, Computational Mechanics 19, 1997, pp. 211-227.
J. S. Chen, et al., “Reproducing Kernel Particle Methods for Large Deformation Analysis of Non-Linear Structures”, Computer Methods in Applied Mechanics and Engineering, 139, 1996, pp. 195-227.
W. K. Liu, et al., “Reproducing Kernel Particle Methods for Structural Dynamics”, International Journal for Numerical Methods in Engineering, vol. 38, 1995, pp. 1655-1679.
H. P. Reichinger et al., Dynamic 2D Analysis of SAW-Devices Including Massloading, 1992 Ultrasonics Symposium Proceedings, 1:7-10, 1992, IEEE, New York, NY.
Ventura, P., et al., “A Mixed FEM/Analytical Model of the Electrode Mechanical Perturbation for SAW and PSAW Propagation”, 1993 Ultrasonics Symposium Proceedings, pp. 205-208, IEEE.
Endoh, G., et al., “Surface Acoustic Wave Propagation Characterisation by Finite-Element Method and Spectral Domain Analysis”, Japanese Journal of Applied Physics, vol. 34, pp. 2638-2641, Part 1, No. 5B, May 1995.
Yoon Sangpil
Yu Jiun-Der
Proctor Jason
Seiko Epson Corporation
LandOfFree
Hybrid finite element method for traveling surface acoustic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hybrid finite element method for traveling surface acoustic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybrid finite element method for traveling surface acoustic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4237042