Rapid Fabrication Technology of Microlens Arrays Based on NOA73

2016 ◽  
Vol 43 (7) ◽  
pp. 0703003
Author(s):  
崔建利 Cui Jianli ◽  
张斌珍 Zhang Binzhen ◽  
段俊萍 Duan Junping ◽  
赵龙 Zhao Long ◽  
南雪莉 Nan Xueli ◽  
...  
Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1719 ◽  
Author(s):  
Sanja P. Kojic ◽  
Goran M. Stojanovic ◽  
Vasa Radonic

Microfluidics, one of the most attractive and fastest developed areas of modern science and technology, has found a number of applications in medicine, biology and chemistry. To address advanced designing challenges of the microfluidic devices, the research is mainly focused on development of efficient, low-cost and rapid fabrication technology with the wide range of applications. For the first time, this paper presents fabrication of microfluidic chips using hybrid fabrication technology—a grouping of the PVC (polyvinyl chloride) foils and the LTCC (Low Temperature Co-fired Ceramics) Ceram Tape using a combination of a cost-effective xurography technique and a laser micromachining process. Optical and dielectric properties were determined for the fabricated microfluidic chips. A mechanical characterization of the Ceram Tape, as a middle layer in its non-baked condition, has been performed and Young’s modulus and hardness were determined. The obtained results confirm a good potential of the proposed technology for rapid fabrication of low-cost microfluidic chips with high reliability and reproducibility. The conducted microfluidic tests demonstrated that presented microfluidic chips can resist 3000 times higher flow rates than the chips manufactured using standard xurography technique.


2010 ◽  
Vol 51 (2) ◽  
pp. 391-402 ◽  
Author(s):  
Chin-Wan Lou ◽  
Yuh-Chyun Chiang ◽  
Hsin-Chung Cheng ◽  
Ching-Zong Wu ◽  
Chiung-Fang Huang ◽  
...  

Author(s):  
Sung-Keun Lee ◽  
Hyun Sup Lee ◽  
Seung S. Lee ◽  
Tai Hun Kwon

Microlens and microlens arrays is realized using a novel fabrication technology based on the exposure of a resist, usually PMMA, to deep X-rays and subsequent thermal treatment. The fabrication technology is very simple and produces microlenses and microlens arrays with good surface roughness (less than 1 nm). The molecular weight and glass transition temperature of PMMA is reduced when it is irradiated with deep X-rays. The microlenses were produced through the effects of volume change, surface tension, and reflow during thermal treatment of irradiated PMMA. Microlenses were produced with diameters ranging from 30 to 1500 μm. Moreover, fabrication of the microlens through the hot embossing process is studied based upon a microlens mold insert fabricated by the modified LIGA process. A hot embossing machine is designed and manufactured. The hot embossing process follows steps of heating a mold to desired temperature, embossing a mold insert on substrate, cooling the mold to deembossing temperature, and deembossing.


2013 ◽  
Vol 5 (19) ◽  
pp. 9382-9385 ◽  
Author(s):  
Jiale Yong ◽  
Feng Chen ◽  
Qing Yang ◽  
Guangqing Du ◽  
Hao Bian ◽  
...  

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