(A) research on mechanical reliability of Ag ion ink films on flexible substrates = 플렉서블 기판 위 은 이온 잉크 필름의 기계적 신뢰성 평가에 대한 연구

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Solution based printing methods using metal ink provide advantages of applicability to curved surfaces, a low manufacturing cost and large-area patternability as well as simple manufacturing processes. Despite of these advantages of metal ink printing, mechanical reliability issues have always been a concern due to its limited mechanical characteristics for flexible electronics. In this research, mechanical reliability of Ag ion ink films on flexible substrates was evaluated. To suggest a proper thermal sintering method for mechanically stable metal ink films, mechanical behavior of Ag ion ink films with different thermal sintering methods was studied. Besides, to achieve mechanically robust flexible electronics using metal ion ink, mechanical reliability of Ag ion ink films on flexible polyimide (PI) substrates was evaluated. Adhesion reliability of Ag ion ink films on PI substrates was analyzed by measuring adhesion energy as a function of sintering temperature by a double cantilever beams (DCB) fracture mechanics test and understanding fracture mechanism. Humidity reliability of the films was evaluated by a moisture assisted subcritical debonding test. Bending endurance of the films was analyzed by a bending test and a bending fatigue test. This research could provide guidelines to design mechanically robust flexible electronics using metal ion ink.
Advisors
Kim, Taek Sooresearcher김택수researcher
Description
한국과학기술원 :기계공학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 2017.8,[v, 43 p. :]

Keywords

Mechanical reliability▼aAdhesion▼aFracture mechanism▼aHumidity▼aBending▼aAg ion ink▼aPolyimide▼aFlexible electronic; 기계적 신뢰성▼a접합력▼a파단 메커니즘▼a습도▼a굽힘▼a은 이온 잉크▼a폴리이미드▼a플렉서블 전자기기

URI
http://hdl.handle.net/10203/242890
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=718555&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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