The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2012
Filed:
May. 27, 2008
Laurie E. Locascio, North Potomac, MD (US);
Francisco Javier Atencia-fernandez, Bethesda, MD (US);
Susan Barnes, Raleigh, NC (US);
Jack F. Douglas, Poolesville, MD (US);
Laurie E. Locascio, North Potomac, MD (US);
Francisco Javier Atencia-Fernandez, Bethesda, MD (US);
Susan Barnes, Raleigh, NC (US);
Jack F. Douglas, Poolesville, MD (US);
Abstract
A method for microfabrication of a microfluidic device having sub-millimeter three dimensional relief structures is disclosed. In this method, homogeneous surfaces, which do not exhibit apparent pixel geometry, emerge from the interaction of the overlapping of diffracted light under opaque pixels and the nonlinear polymerization properties of the photoresist material. The method requires a single photolithographic step and allows for the fabrication of microstructures over large areas (centimeters) with topographic modulation of features smaller than 100 micrometers. The method generates topography that is useful in a broad range of microfluidic applications.