Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Reexamination Certificate
2006-10-03
2006-10-03
Suhol, Dmitry (Department: 3725)
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
C072S364000, C072S379200
Reexamination Certificate
active
07114361
ABSTRACT:
An inexpensive method of rapidly fabricating reactive metal (Zn, Al, Al-alloy, etc.) microscale structures including high-aspect-ratio microscale structures is disclosed. A high precision process uses conformal bond inhibitor coating and high temperature compression molding techniques to produce high quality, high aspect ratio metal structures. In one embodiment, following fabrication of an initial metallic microscale mold insert, an adhesion-promoting metal precursor layer and a ceramic bond inhibitor coating are conformally deposited onto the microscale mold insert. The microscale mold insert and a preselected reactive metal are then heated to an optimum temperature and compressed together. The mold insert is then extracted from the molded metal to produce a reverse image of the mold insert.
REFERENCES:
patent: 5681661 (1997-10-01), Kelly
patent: 5787753 (1998-08-01), Dougherty
patent: 6280090 (2001-08-01), Stephens et al.
patent: 6415860 (2002-07-01), Kelly et al.
patent: 6688154 (2004-02-01), Anazawa et al.
patent: 6892802 (2005-05-01), Kelly et al.
Cao et al., “Amorphous Hydrocarbon based Thin Films for High-aspect-ratio MEMS Applications,” Thin Solid Films, vol. 398/399, pp. 553-559 (2001).
Cao et al., “Microscale Compression Molding of Al with Surface Engineered LIGA Inserts,” submitted for publication in Jun. 2003.
Cao et al., “Molding of Pb and Zn with Microscale Mold Inserts,” presented at the Materials Research Society Meeting, Boston, Massachusetts (Dec. 2002).
Harris, C. et al., “Design and Fabrication of a Cross Flow Micro Heat Exchanger,” IEEE J. Microelectromech. Syst., vol. 9, No. 4, pp. 502-508 (2000).
Stephens, L.S. et al., “A Pin Fin Microheat Sink for Cooling Macroscale Conformal Surfaces Under the Influence of Thrust and Frictional Forces,” IEEE J. Microelectromech. Syst., vol. 10, No. 2, pp. 222-231 (2001).
Weber, L. et al., “Micromolding: a powerful tool for large-scale production of precise microstructures,” SPIE Proceeding, Micromachining and Microfabrication Process Technology II, Austin, TX, pp. 156-167 (1996).
Board of Supervisors of Louisiana State University and Agricultu
Davis Bonnie J.
Porter André J.
Runnels John H.
Suhol Dmitry
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