THERMAL BEND ACTUATOR HAVING IMPROVED LIFETIME

A thermal bend actuator includes: a thermoelastic beam for connection to drive circuitry; and a passive beam mechanically cooperating with the thermoelastic beam, such that when a current is passed through the thermoelastic beam, the thermoelastic beam expands relative to the passive beam resulting...

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Bibliographische Detailangaben
Hauptverfasser: HACKETT, Darren, SHNIDER, Michael, BYRNE, Owen, O'REILLY, Rónán, REID, Kimberly G, BAGNAT, Misty, BARCZUK, Alexandra, DONOHOE, Brian Kevin
Format: Patent
Sprache:eng
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Zusammenfassung:A thermal bend actuator includes: a thermoelastic beam for connection to drive circuitry; and a passive beam mechanically cooperating with the thermoelastic beam, such that when a current is passed through the thermoelastic beam, the thermoelastic beam expands relative to the passive beam resulting in bending of the actuator. The thermoelastic beam wherein the thermoelastic beam is comprised of an aluminium alloy. The aluminium alloy comprises a first metal which is aluminium, a second metal, and at least 0.1 at. % of a third metal selected from the group consisting of: copper, scandium, tungsten, molybdenum, chromium, titanium, silicon and magnesium.