Hysteretic MEMS thermal device and method of manufacture

Details Hysteretic MEMS thermal device and method of manufacture Hysteretic MEMS thermal device and method of manufacture

2006-01-19

2009-06-16

Enad, Elvin G (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

C200S181000, C310S307000

Reexamination Certificate

active

07548145

ABSTRACT:
A MEMS hysteretic thermal device may have a cantilevered beam which bends about one or more points in at least two substantially different directions. In one exemplary embodiment, the MEMS hysteretic thermal device is made from a first segment coupled to an anchor point, and also coupled to a second segment by a joint. Heating two respective drive beams causes the first segment to bend in a direction substantially about the anchor point and the second segment to bend in a direction substantially about the joint. By cooling the first drive beam faster than the second drive beam, the motion of the MEMS thermal device may be hysteretic. The MEMS hysteretic thermal device may be used for example, as an electrical switch or as a valve or piston.

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