کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
544378 1450384 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
S-shaped double-spring structures for high stiffness and spring height
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر سخت افزارها و معماری
پیش نمایش صفحه اول مقاله
S-shaped double-spring structures for high stiffness and spring height
چکیده انگلیسی

Stress-engineered spring structures have been demonstrated for a variety of innovative applications in nanoelectronics and micro-electromechanical systems (MEMS). They are fabricated by lifting a patterned metal film with internal stress gradient out of the substrate plane using sputtering. As their circular side profile puts a limit on the attainable spring height, non-circular spring shapes are highly desired. Therefore, we have developed a double-spring approach with an S-shape side profile which allows for extreme spring heights while still relying on the same stress-engineered base process without additional lithography steps. In our concept, the lower beam is pushing upwards and the upper beam is pushing downwards which leads to the S-shape. Optional interlocking features allow both springs to lock into a certain position. This paper presents the double-spring approach and demonstrates fabricated structures. Nearly vertical springs illustrate the potential of the technology for applications which require non-circular shapes and extreme heights.

Figure optionsDownload as PowerPoint slideHighlights
► We have developed double-springs with an S-shape side profile.
► Nearly vertical spring structures can be fabricated by our approach.
► Optional interlocking features allow both springs to lock into a certain position.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronic Engineering - Volume 97, September 2012, Pages 231–234
نویسندگان
, ,