Etching a substrate: processes – Forming or treating an article whose final configuration has...
Reexamination Certificate
2006-05-16
2006-05-16
Ahmed, Shamim (Department: 1765)
Etching a substrate: processes
Forming or treating an article whose final configuration has...
C216S002000, C216S007000, C216S008000, C216S009000, C430S320000, C428S606000, C428S611000, C428S614000
Reexamination Certificate
active
07045069
ABSTRACT:
A method of fabricating microstructural components, microparts assemblies and microparts is disclosed. The method includes fabricating a unidirectional metal matrix composite made of materials selected to allow precise etching of different structural elements of the given composite without damage to each other. Cutting a composite to form slices or sections. Etching a matrix entirely out will produce wide assortment of microparts. Partial removal of matrix will form an array of microprotrusions protruding from a substrate. Etching out the microprotrusions cores will form hollow microprotrusions. The method of invention is suitable for fabricating of variety of microcomponents. For example: microneedles—a medical microdevice component having micron features, arrays of high strength micropins and micropunches, and precisely controlled unique microstructural surfaces.
REFERENCES:
patent: 2499977 (1950-03-01), Scott
patent: 2628417 (1953-02-01), Peyches
patent: 3379000 (1968-04-01), Webber
patent: 3506885 (1970-04-01), Roberts
patent: 3625662 (1971-12-01), Roberts
patent: 3868792 (1975-03-01), Roberts
patent: 3964482 (1976-06-01), Gerstel
patent: 4415635 (1983-11-01), Wilsdorf et al.
patent: 5127149 (1992-07-01), Ozeryansky
patent: 5972523 (1999-10-01), Qin et al.
patent: 6050988 (2000-04-01), Zuck
patent: 6083196 (2000-07-01), Trautman
patent: 6219574 (2001-04-01), Cormier
patent: 6331266 (2001-12-01), Powell
patent: 6334856 (2002-01-01), Allen
patent: 6471903 (2002-10-01), Sherman
patent: 6533949 (2003-03-01), Yeshurun
patent: 6790372 (2004-09-01), Roy et al.
patent: 2003/0087130 (2003-05-01), Sugawara
Concise Encyclopedia of Magnetic & Superconducting Materials, 1992 Pergamon Press, pp. 332-338.
Handbook of Metal-forming Processes, by Betzalel Avitzur 1983, John Wiley & Sons, pp. 429-432.
Fundamentals of Microfabrication, by Madou, Mark CRC Press, LLC 1997, pp. 328-335.
LandOfFree
Microfabrication method based on metal matrix composite... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microfabrication method based on metal matrix composite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microfabrication method based on metal matrix composite... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3588883