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BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Penn Engineering Events - ECPv6.18.0//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Penn Engineering Events X-ORIGINAL-URL:https://seasevents.nmsdev7.com X-WR-CALDESC:Events for Penn Engineering Events REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20180311T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20181104T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20190310T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20191103T060000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:EDT DTSTART:20200308T070000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0400 TZOFFSETTO:-0500 TZNAME:EST DTSTART:20201101T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/New_York:20190917T103000 DTEND;TZID=America/New_York:20190917T120000 DTSTAMP:20190830T132121Z CREATED:20190830T132121Z LAST-MODIFIED:20190830T132121Z UID:1925-1568716200-1568721600@seasevents.nmsdev7.com SUMMARY:MEAM Seminar: "Engineering Microdevices Using Atomic Layer Deposition and Electrowetting" DESCRIPTION:This talk will cover 1) devices created one atomic layer at a time and 2) electrowetting optical elements. Atomic layer deposition (ALD) and Atomic Layer Etching (ALE) are self-limiting processes that enable accurate atomic-scale thickness control either through deposition or etching of various materials. We are developing novel manufacturing processes that study how ALD materials can be used to create nano-scale transducers. Example applications include thin film coatings for MEMS\, materials with tunable properties\, nano-scale sensors and actuators. We are also developing liquid optical components based on the electrowetting effect\, where the contact angle of a liquid on a dielectric substrate changes due to applied voltage. Optical lenses and prisms can be fabricated as individual components or as arrays and are electrically addressed by transparent electrodes. By applying a voltage between the liquid and the substrate\, the droplet changes curvature and the liquid interface acts as a variable focus lens or using multiple drive electrodes as a prism. This phenomenon can be used for wavefront compensation in adaptive optics\, communications\, beam steering\, optical switching and microscopy. URL:https://seasevents.nmsdev7.com/event/meam-seminar-multi-disciplinary-engineering-microsystems-group/ LOCATION:Wu and Chen Auditorium (Room 101)\, Levine Hall\, 3330 Walnut Street\, Philadelphia\, PA\, 19104\, United States END:VEVENT END:VCALENDAR