All evaporation submicron lift-off lithography process with negative e-beam QSR-5 resist

被引:6
|
作者
Gerbedoen, Jean-Claude [1 ]
Aliane, Abdelkader [1 ]
Giguere, Alexandre [1 ]
Drouin, Dominique [1 ]
Ares, Richard [1 ]
Aimez, Vincent [1 ]
机构
[1] Univ Sherbrooke, Dept Elect & Comp Engn, Sherbrooke, PQ J1K 2R1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Bilayer lift-off process; Evaporated resist; ebeam lithography; Photodetector; PHOTORESIST;
D O I
10.1016/j.mee.2012.10.006
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present a bilayer lift-off process without spin coating step, based on evaporated negative ebeam resist QSR-5. This technique is appropriated to process small samples of a few millimetres in size. Evaporated amorphous silicon was used to create the undercut. Patterns were defined by electron beam lithography thanks to the high resolution QSR-5 resist. We optimized the undercut of the a-Si layer using a high density plasma etching system with different recipes to allow submicron lines lift-off. Lift-off with no edge bead effect was performed using this technique. Finally, the process was applied to demonstrate the fabrication of Metal/Semiconductor/Metal (MSM) photodetector on a millimetre scale substrate. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:123 / 125
页数:3
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