A liquid crystalline polymer microlens array with tunable focal intensity by the polarization control of a liquid crystal layer

2007 ◽  
Vol 91 (22) ◽  
pp. 221113 ◽  
Author(s):  
Yoonseuk Choi ◽  
Hak-Rin Kim ◽  
Kwang-Ho Lee ◽  
Yong-Min Lee ◽  
Jae-Hoon Kim
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Microlens Array ◽  
Crystal Layer ◽  
Liquid Crystal Layer ◽  
Polarization Control ◽  
Focal Intensity

Development of a Hermetically Sealed Enclosure for MEMS in Chip-on-Flex Modules Using Liquid Crystalline Polymer (LCP)

2005 ◽  
Author(s):  
Morgan Chen ◽  
Nicole Evers ◽  
Chris Kapusta ◽  
Joe Iannotti ◽  
Anh-Vu Pham ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Low Temperature ◽  
Insertion Loss ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Microelectromechanical System ◽  
Mems Switch ◽  
Crystal Polymer ◽  
X Band

We present the development of a hermetic shield packaging enclosure for RF microelectromechanical system switches (MEMS) using Liquid Crystal Polymer (LCP). A cavity formed in LCP has been laminated, at low temperature, onto a Si MEMS switch to create a hermetically sealed package. The hermetically sealed enclosure is a stack-up layer of the multi-layer organic chip-on-flex system-on-a-package (SOP). The entire SOP hermetically sealed package has a total insertion loss of ∼0.5 dB at X-band. E595 outgas tests demonstrate that the LCP package is reliable and hermetically protects the MEMS switch.

Aggregation States and Bistable Light Switching of (Liquid Crystalline Polymer)/(Low Molecular Weight Liquid Crystal) Mixture Systems

1989 ◽  
Vol 18 (5) ◽  
pp. 817-820 ◽  
Author(s):  
Tisato Kajiyama ◽  
Hirotsugu Kikuchi ◽  
Akira Miyamoto ◽  
Satoru Moritomi ◽  
Jenn Chiu Hwang
Keyword(s):  
Molecular Weight ◽  
Liquid Crystal ◽  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Crystalline Polymer ◽  
Low Molecular Weight ◽  
Crystal Mixture
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