Bubble Formation Modeling in Matrix-Assisted Pulsed-Laser Evaporation Direct Write

2008 ◽  
Author(s):  
Yafu Lin ◽  
Kevin Foy ◽  
Yong Huang ◽  
Douglas B. Chrisey
Keyword(s):  
Physical Mechanism ◽  
Bubble Diameter ◽  
Bubble Formation ◽  
Pulsed Laser ◽  
Laser Evaporation ◽  
Direct Write ◽  
Phase Explosion ◽  
Glycerol Water ◽  
Complex Process ◽  
Proposed Model

Matrix-assisted pulsed-laser evaporation direct write (MAPLE DW) is emerging as a promising direct-write technology for printing microelectronics as well as biological constructs. To widely employ this technology, understanding of its physical mechanism is of need. In this study, the bubble formation process in MAPLE DW of glycerol-water coating is modeled based on the nucleation-based phase explosion theory. Based on the proposed model, the bubble diameter after expansion and cooling and bubble pressure can be predicted. Although the prediction overall overestimates the bubble diameter during the MAPLE DW experiments, the proposed model is considered satisfactory in reasonably predicting the bubble diameter as a first step endeavor for this complex process. It is expected that the introduction of more accurate models for energy loss should further help improve the model prediction accuracy.

Transforming a Laser Micromachiner into a Direct-Write Tool for Electronic Materials

2008 ◽  
Vol 5 (3) ◽  
pp. 116-121 ◽  
Author(s):  
Aaron D. Halvorsen ◽  
Pooja Vaidya ◽  
Matthew Robinson ◽  
Douglas L. Schulz
Keyword(s):  
Rapid Prototyping ◽  
Polymer Composites ◽  
Electronic Materials ◽  
Sensor Arrays ◽  
Pulsed Laser ◽  
Cost Effective ◽  
Laser Evaporation ◽  
Direct Write ◽  
Effective Manner ◽  
Conventional Laser

A conventional laser micromachining system is configured for use as a matrix-assisted pulsed laser evaporation direct-write (MAPLE-DW) system in a straightforward and cost-effective manner. The simplicity of the method is illustrated by highlighting the process for MAPLE-DW of polymer composites used in chemical gas sensor arrays. Important aspects are considered, including ribbon preparation, ribbon aging, and computerized process control for rapid prototyping.

Matrix Assisted Pulsed Laser Evaporation Direct Write (MAPLE DW): A New Method to Rapidly Prototype Active and Passive Electronic Circuit Elements

2000 ◽  
Vol 625 ◽  
Author(s):  
J.M. Fitz-Gerald ◽  
D.B. Chrisey ◽  
A. Piqu ◽  
R.C.Y. Auyeung ◽  
R. Mohdi ◽  
...  
Keyword(s):  
Composite Material ◽  
Thick Film ◽  
Pulsed Laser ◽  
Laser Evaporation ◽  
Work Piece ◽  
Direct Write ◽  
Electromagnetic Modeling ◽  
Cad Cam ◽  
Circuit Elements ◽  
Materials Used

AbstractWe demonstrate a novel laser-based approach to perform rapid prototyping of active and passive circuit elements called MAPLE DW. This technique is similar in its implementation to laser induced forward transfer (LIFT), but different in terms of the fundamental transfer mechanism and materials used. In MAPLE DW, a focused pulsed laser beam interacts with a composite material on a laser transparent support transferring the composite material to the acceptor substrate. This process enables the formation of adherent and uniform coatings at room temperature and atmospheric pressure with minimal post-deposition modification required, i.e., ≤ 400°C thermal processing. The firing of the laser and the work piece (substrate) motion is computer automated and synchronized using software designs from an electromagnetic modeling program validating that this technique is fully CAD/CAM compatible. The final properties of the deposited materials depend on the deposition conditions and the materials used, but when optimized, the properties are competitive with other thick film techniques such as screenprinting. Specific electrical results for conductors are < 5X the resistivity of bulk Ag, for BaTiO3/TiO2 composite capacitors the k can be tuned between 4 and 100 and losses are < 1-4%, and for polymer thick film resistors the compositions cover 4 orders of magnitude in sheet resistivity. The surface profiles and fracture cross-section micrographs of the materials and devices deposited show that they are very uniform, densely packed and have minimum resolutions of ∼10 µm. A discussion of how these results were obtained, the materials used, and methods to improve them will be given.

Plume and Jetting Regimes in a Laser Based Forward Transfer Process as Observed by Time-Resolved Optical Microscopy

2001 ◽  
Vol 698 ◽  
Author(s):  
D. Young ◽  
R. C. Y. Auyeung ◽  
A. Piqué ◽  
D. B. Chrisey ◽  
H. Denham ◽  
...  
Keyword(s):  
Viscous Fluid ◽  
Optical Microscopy ◽  
Transfer Process ◽  
High Speed ◽  
Pulsed Laser ◽  
Laser Pulses ◽  
Laser Evaporation ◽  
Direct Write ◽  
Time Resolved ◽  
Forward Transfer

ABSTRACTMatrix-Assisted Pulsed Laser Evaporation Direct-Write was investigated by ultra high-speed optical microscopy. A layer of viscous fluid was irradiated with 355nm, 30 ns laser pulses in a laser-forward transfer configuration. The fluid response as a function of fluence was studied, and several distinct regimes of behavior were observed: plume, jetting and sub-threshold. However, the transition between plume and jetting regimes was not readily evident in a study of transfer pixel area vs. fluence, which may be explained by material-substrate interactions.

Planar laser imaging and modeling of matrix-assisted pulsed-laser evaporation direct write in the bubble regime

2006 ◽  
Vol 100 (3) ◽  
pp. 033107 ◽  
Author(s):  
Brent R. Lewis ◽  
Edward C. Kinzel ◽  
Normand M. Laurendeau ◽  
Robert P. Lucht ◽  
Xianfan Xu
Keyword(s):  
Pulsed Laser ◽  
Laser Evaporation ◽  
Direct Write ◽  
Laser Imaging ◽  
Planar Laser ◽  
Bubble Regime

Bubble Formation Modeling During Laser Direct Writing of Glycerol Solutions

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Ruitong Xiong ◽  
Zhengyi Zhang ◽  
Jianxin Shen ◽  
Yafu Lin ◽  
Yong Huang ◽  
...  
Keyword(s):  
Laser Fluence ◽  
Formation Process ◽  
Bubble Diameter ◽  
Bubble Formation ◽  
Glycerol Solution ◽  
Glycerol Concentration ◽  
Direct Writing ◽  
Laser Direct Writing ◽  
Glycerol Water ◽  
Modeling Approach

Laser direct writing, a noncontact modified laser-induced forward transfer (LIFT) technique, has emerged as a promising technology for various applications from microelectronics printing to biofabrication. For it to be a viable technology, the bubble formation process during laser direct writing should be carefully examined. In this study, the bubble formation process during the laser direct writing of glycerol–water solutions has been studied using a nucleation-based phase explosion modeling approach. The effects of laser fluence and material properties of glycerol solution on the resulting bubble geometry have been examined both analytically and experimentally. Overall, a satisfactory modeling accuracy has been achieved, while the proposed modeling approach slightly underestimates the bubble diameter. Both the measured and predicted bubble diameters increase when the laser fluence increases. Interestingly, the measured and predicted diameters first decrease, then increase, and decrease again with the increase of glycerol concentration. Furthermore, it is noted that the bubble diameter is more sensitive to the laser fluence than the glycerol concentration.

Laser transfer of biomaterials: Matrix-assisted pulsed laser evaporation (MAPLE) and MAPLE Direct Write

2003 ◽  
Vol 74 (4) ◽  
pp. 2546-2557 ◽  
Author(s):  
P. K. Wu ◽  
B. R. Ringeisen ◽  
D. B. Krizman ◽  
C. G. Frondoza ◽  
M. Brooks ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Laser Evaporation ◽  
Direct Write ◽  
Laser Transfer

Matrix Assisted Pulsed Laser Evaporation Direct Write (MAPLE DW): A New Method to Rapidly Prototype Active and Passive Electronic Circuit Elements

2000 ◽  
Vol 624 ◽  
Author(s):  
J.M. Fitz-Gerald ◽  
D.B. Chrisey ◽  
A. Piqu ◽  
R.C.Y. Auyeung ◽  
R. Mohdi ◽  
...  
Keyword(s):  
Composite Material ◽  
Thick Film ◽  
Pulsed Laser ◽  
Laser Evaporation ◽  
Work Piece ◽  
Direct Write ◽  
Electromagnetic Modeling ◽  
Cad Cam ◽  
Circuit Elements ◽  
Materials Used

ABSTRACTWe demonstrate a novel laser-based approach to perform rapid prototyping of active and passive circuit elements called MAPLE DW. This technique is similar in its implementation to laser induced forward transfer (LIFT), but different in terms of the fundamental transfer mechanism and materials used. In MAPLE DW, a focused pulsed laser beam interacts with a composite material on a laser transparent support transferring the composite material to the acceptor substrate. This process enables the formation of adherent and uniform coatings at room temperature and atmospheric pressure with minimal post-deposition modification required, i.e., ≤400°C thermal processing. The firing of the laser and the work piece (substrate) motion is computer automated and synchronized using software designs from an electromagnetic modeling program validating that this technique is fully CAD/CAM compatible. The final properties of the deposited materials depend on the deposition conditions and the materials used, but when optimized, the properties are competitive with other thick film techniques such as screen-printing. Specific electrical results for conductors are < 5X the resistivity of bulk Ag, for BaTiO3/TiO2composite capacitors the k can be tuned between 4 and 100 and losses are < 1-4%, and for polymer thick film resistors the compositions cover 4 orders of magnitude in sheet resistivity. The surface profiles and fracture cross-section micrographs of the materials and devices deposited show that they are very uniform, densely packed and have minimum resolutions of -10 jtm. A discussion of how these results were obtained, the materials used, and methods to improve them will be given

Matrix Assisted Pulsed Laser Evaporation-Direct Write (Maple-Dw)

2002 ◽  
pp. 517-553 ◽  
Author(s):  
James M. Fitz-Gerald ◽  
Philip D. Rack ◽  
Bradley Ringeisen ◽  
Daniel Young ◽  
Rohit Modi ◽  
...  
Keyword(s):  
Pulsed Laser ◽  
Laser Evaporation ◽  
Direct Write
Sign in / Sign up

Export Citation Format

Share Document