Effects of Stamps Properties and Printing Pressure on Microcontact Printing Process
Microcontact printing (μCP) is a high efficiency and low-cost technology for surface patterning in micro/nano scale.This paper investigates the effects of stamps mechanical properties and printing pressures on the quality of the fabricated microstructures during the μCP process.To study the polydimethylsiloxane (PDMS) based stamps,five weight ratios of PDMS specimens were tested and the relationship between the stress and stain was developed.Three line-patterns stamps at different weight ratios were casted when the printing pressures applied in the range of 1 KPa to 1 MPa.Experimentally results demonstrate that the optimal pressure is in the range of 20 KPa to 200 KPa.Lower pressure causes larger defects due to the confined space for patterning,while the larger pressure leads to the deformation of stamps.The results also show that the stamp of 20:1 weight ratio can obtain the highest quality of the printed patterns under medium level pressure due to its lowest Young’s modulus.The hard stamp can be effective to resist some deformations during printing.
Microcontact printing (μCP) PDMS Stamp Pressure
Yu Dai Yancheng Wang Guanhao Liang
The State Key Lab of Fluid Power Transmission and Control, Department of MechanicalEngineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-6
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）