Polycrystalline complex-shaped mesoscale components

US8530039B2 · kind B2 · utility

Assignee

• The Penn State Research Foundation · US

Inventors

• James H. Adair · State College, US
• Mary Frecker · State College, US
• Christopher L. Muhlstein · Brookline, US
• Eric Mockensturm · State College, US
• Harriet Black Nembhard · State College, US
• Randy S. Haluck · Lititz, US
• Abraham Mathew · Hershey, US
• Nicholas Edward Antolino · Schenectady, US
• Gregory R Hayes · State College, US
• Milton Aguirre · State College, US
• Rebecca Kirkpatrick · State College, US
• Chumpol Yuangyai · State College, US

Key dates

• Filing date: Aug 3, 2009
• Grant date: Sep 10, 2013
• Expiry date: Jan 18, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24628
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A polycrystalline mesoscale component, formed through a process including filing a mold cavity formed in a photoresist with a mold fill, is provided with an overall length L divided into multiple segments with a second segment extending from a first segment at a nonlinear angle. The first segment has a first segment height H1 and a first segment thickness T1, while the second segment has a second segment height H2 and a second segment thickness T2, with the lesser of H1 and H2 defining a minimum segment height Hmin and the lesser of T1 and T2 defining a minimum segment thickness Tmin. The resultant component has a ratio of L:Hmin:Tmin of 20-80:1:0.5-10 where Hmin is between 5 and 500 microns. In specific instances, the nonlinear angle is acute, the multiple segments are rectilinear in cross section, and a segment thickness has an edge resolution of between 0.1 and 2 microns.