This paper investigates the behavior of the Piezoelectric (PZT) Bimorph disc within a Direct Write Fabrication Process. A modified Continuous Inkjet Print (CIJ) method is utilized to deposit a variety of conductive nano particulate materials for building miniaturized devices that can sustain harsh environments. Typical example includes the fabrication of electronic devices that are subject to severe fluctuations to temperature gradients. The spatial and temporal complexity of the novel CIJ based microfabrication process necessitates a computational solution to complement its experimental development. The interaction of three fields namely; electrostatic, structural and fluidic in the CIJ head are captured within a single Multiphysics model. A fluid-structure interaction (FSI) algorithm is used to capture the interaction of the PZT disc with the ink media. The effects of input parameters such as pressure, frequency and voltage on the PZT disc displacement are studied. Further, their effects on the transient pattern of the PZT displacement are explained. The findings from this research can be utilized to control the PZT disc displacements which, ultimately can be used to obtain an optimized and consistent drop break up for high precision printing.

1.
Sweet
R. G.
, “
High frequency recording with electrostatically deflected ink-jets
,”
Rev. Sci. Instrum
,
36
,
1965
, pp.
131
131
.
2.
Sweet, R. G., “Signal Apparatus with Fluid Drop Recorder,” U.S. Patent 3596275, (1971)
3.
Jacobson, J. M., Hubert, B. N., Ridley, B., Nivi, B., and Fuller, S., “Nanoparticle-based electrical, chemical, and mechanical structures and methods of making same,” United States Patent: 6,294,401, September 25, 2001.
4.
Szczech
J. B.
,
Megaridis
C. M.
,
Gamota
D. R.
, and
Zhang
J.
, “
Fine-Line Conductor Manufacturing Using Drop-On-Demand PZT Printing Technology
,”
IEEE Transactions on Electronics Packaging Manufacturing
, Vol.
25
, No.
1
, January
2002
, pp.
26
33
.
5.
Yatsuzuka, K., Saito, K, Asano, K., “Aero-Dynamical Motion of Charged Droplets Ejected from the 26?m Nozzle,” IEEE Industry Applications Society Annual Meeting, New Orleans, October 1997, pp. 1845–1850
6.
ANSYS Inc, Element Reference Library
7.
Nichols, B. D., Hirt, C. W., and Hotchkiss, R. S., “Transient Fluid Flow Free Boundaries,” Energy Science & Technology Software Center Software Abstract, Los Alamos National Laboratory, New Mexico, March 2002, pp. 1–3.
8.
ANSYS Inc, ANSYS Multiphysics/LS Dyna version 8.0.
9.
Morgan Electro Ceramics, PZT-5A Bimorph Disc
This content is only available via PDF.
You do not currently have access to this content.