Wafer-level, polymer-based encapsulation for microstructure devices

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United States of America Patent

PATENT NO 7790493
SERIAL NO

11440983

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Abstract

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Disclosed herein is a method of fabricating a device having a microstructure. The method includes forming a connector on a semiconductor substrate, coating the connector with a polymer layer, and immersing the semiconductor substrate and the coated connector in an etchant solution to form the microstructure from the semiconductor substrate and to release the coated connector and the microstructure from the semiconductor substrate such that the microstructure remains coupled to a further element of the device via the coated connector. In some cases, the microstructure is defined by forming an etch stop in the semiconductor substrate, and the microstructure and the semiconductor substrate are coated with a polymer layer, which may then be selectively patterned. The microstructure may then be released from the semiconductor substrate in accordance with the etch stop.

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Patent Owner(s)

  • REGENTS OF THE UNIVERSITY OF MICHIGAN, THE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gulari, Mayurachat Ning Ann Arbor, US 14 251
Wise, Kensall D Ann Arbor, US 39 3217
Yao, Ying Ann Arbor, US 14 59

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