浏览全部资源
扫码关注微信
复旦大学 信息科学与工程学院 纳米光刻与应用科研组,上海 200433
Received:16 October 2021,
Revised:21 November 2021,
Published:25 May 2022
移动端阅览
李艺杰,肖君,陈宜方等.电子束直写大深宽比Si3N4薄膜支撑的光栅X射线准直器[J].光学精密工程,2022,30(10):1181-1188.
LI Yijie,XIAO Jun,CHEN Yifang,et al.Grating X-ray collimator supported by Si3N4 membrane with large aspect ratio written directly by electron beam[J].Optics and Precision Engineering,2022,30(10):1181-1188.
李艺杰,肖君,陈宜方等.电子束直写大深宽比Si3N4薄膜支撑的光栅X射线准直器[J].光学精密工程,2022,30(10):1181-1188. DOI: 10.37188/OPE.20223010.1181.
LI Yijie,XIAO Jun,CHEN Yifang,et al.Grating X-ray collimator supported by Si3N4 membrane with large aspect ratio written directly by electron beam[J].Optics and Precision Engineering,2022,30(10):1181-1188. DOI: 10.37188/OPE.20223010.1181.
为了开发新的X射线准直器,利用电子束光刻(EBL)技术,结合电镀和湿法化学刻蚀工艺,在悬空的Si
3
N
4
隔膜上制作了大面积、高深宽比、微米周期的Au光栅。调整场拼接区域的曝光剂量解决了大面积的EBL光刻问题;用加强筋结构克服了制作高深宽比、高密度光刻胶模板时线条倒塌问题;通过在Si
3
N
4
隔膜下面保留很薄一层Si(25 nm 厚)和改善显影工艺,克服了厚光刻胶在300 nm 厚的Si
3
N
4
隔膜上显影时,光刻胶的断裂问题。实验结果显示,所制备的2 μm周期、深宽比为5.5,面积为400 μm×1 000 μm 的Au光栅可以对光子能量为8 keV的X射线进行调制。所制备的Au光栅狭缝可以用作线平行X射线断层成像系统的探测器准直器件,或面平行X射线断层成像系统的光源准直器件,提高系统的成像速度。
The objective of this study was to develop a new X-ray collimator. Electron beam lithography (EBL) technology was coupled with electroplating and wet chemical etching technology to fabricate gold micron gratings involving a large area and high aspect ratio on a suspended silicon nitride membrane. The exposure dose in the field splicing area was adjusted to solve the large area EBL problem. The grating line collapse in high-aspect ratio and high-density photoresist templates was overcome by using a reinforced structure. The thick photoresist spin-coated fracture on the 300-nm Si
3
N
4
membrane was prevented by keeping an extremely thin layer of silicon (25 nm thick) under the thin Si
3
N
4
membrane; therefore, improving the development process. The results demonstrated that the gold gratings with a 2-μm period, 5.5 aspect ratio, and 400-μm by 1000-μm area can modulate the 8-keV energy X-rays. The fabricated gold gratings can be used as detector collimators in line-parallel X-ray tomography systems or as source collimators in area-parallel X-ray tomography systems to improve the imaging speed.
MADI K , STAINES K A , BAY B K , et al . In situ characterization of nanoscale strains in loaded whole joints via synchrotron X-ray tomography [J]. Nature Biomedical Engineering , 2020 , 4 ( 3 ): 343 - 354 . doi: 10.1038/s41551-019-0477-1 http://dx.doi.org/10.1038/s41551-019-0477-1
TAMASAKU K , SHIGEMASA E , INUBUSHI Y , et al . X-ray two-photon absorption competing against single and sequential multiphoton processes [J]. Nature Photonics , 2014 , 8 ( 4 ): 313 - 316 . doi: 10.1038/nphoton.2014.10 http://dx.doi.org/10.1038/nphoton.2014.10
TAKEUCHI A , UESUGI K , SUZUKI Y . Three-dimensional phase-contrast X-ray microtomography with scanning-imaging X-ray microscope optics [J]. Journal of Synchrotron Radiation , 2013 , 20 ( 5 ): 793 - 800 . doi: 10.1107/s0909049513018876 http://dx.doi.org/10.1107/s0909049513018876
王琦 , 高党忠 , 马小军 , 等 . 惯性约束聚变靶丸高精度X射线数字成像 [J]. 光学 精密工程 , 2020 , 28 ( 2 ): 324 - 333 .
WANG Q , GAO D Z , MA X J , et al . High precision X-ray digital imaging of inertial confinement fusion capsules [J]. Optics and Precision Engineering , 2020 , 28 ( 2 ): 324 - 333 . (in Chinese)
谢红兰 , 邓彪 , 杜国浩 , 等 . 上海光源X射线成像及其在材料科学上的应用研究进展 [J]. 失效分析与预防 , 2021 , 16 ( 1 ): 46 - 59, 69 . doi: 10.3969/j.issn.1673-6214.2021.01.005 http://dx.doi.org/10.3969/j.issn.1673-6214.2021.01.005
XIE H L , DENG B , DU G H , et al . Development of X-ray imaging methodology and its applications on material science at Shanghai synchrotron radiation facility [J]. Failure Analysis and Prevention , 2021 , 16 ( 1 ): 46 - 59, 69 . (in Chinese) . doi: 10.3969/j.issn.1673-6214.2021.01.005 http://dx.doi.org/10.3969/j.issn.1673-6214.2021.01.005
HARDING G . X-ray diffraction imaging—A multi-generational perspective [J]. Applied Radiation and Isotopes , 2009 , 67 ( 2 ): 287 - 295 . doi: 10.1016/j.apradiso.2008.08.006 http://dx.doi.org/10.1016/j.apradiso.2008.08.006
HIRAGA J S , NAKAMURA S , UCHIDA Y , et al . A novel multi-collimator using BP-1 glass and an application for X-ray CCDs [J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2007 , 573 ( 1/2 ): 236 - 239 . doi: 10.1016/j.nima.2006.10.391 http://dx.doi.org/10.1016/j.nima.2006.10.391
HAO Z R , FAN G T , WANG H W , et al . Collimator system of SLEGS beamline at Shanghai light source [J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2021 , 1013 : 165638 . doi: 10.1016/j.nima.2021.165638 http://dx.doi.org/10.1016/j.nima.2021.165638
MARASHDEH M W . Effect of the LEGe detector collimators on K-series peaks and Compton scattering in XRF analysis using gamma rays [J]. Heliyon , 2018 , 4 ( 8 ): e00724 . doi: 10.1016/j.heliyon.2018.e00724 http://dx.doi.org/10.1016/j.heliyon.2018.e00724
HOSSEIN M , REZA S M , JAMSHID S N . Image quality and dose assessment of collimator slit width effect in SLOT-SCAN X-ray imaging system [J]. Applied Radiation and Isotopes , 2021 , 171 : 109642 . doi: 10.1016/j.apradiso.2021.109642 http://dx.doi.org/10.1016/j.apradiso.2021.109642
NIKULIN A Y , DAVIS J R . Refraction phenomena in X-ray scattering experiments performed with a narrow collimator aperture [J]. Optics Communications , 1998 , 155 ( 4/5/6 ): 231 - 235 . doi: 10.1016/s0030-4018(98)00375-7 http://dx.doi.org/10.1016/s0030-4018(98)00375-7
TSUJI K , MATSUDA A , NAKANO K , et al . X-ray fluorescence analysis of soft materials using needle-type collimators enabling greater tolerance in analysis depth [J]. Spectrochimica Acta Part B: Atomic Spectroscopy , 2006 , 61 ( 4 ): 460 - 464 . doi: 10.1016/j.sab.2006.01.014 http://dx.doi.org/10.1016/j.sab.2006.01.014
SIDAMBE A T , JUDSON D S , COLOSIMO S J , et al . Laser Powder bed fusion of a pure tungsten ultra-fine single pinhole collimator for use in gamma ray detector characterisation [J]. International Journal of Refractory Metals and Hard Materials , 2019 , 84 : 104998 . doi: 10.1016/j.ijrmhm.2019.104998 http://dx.doi.org/10.1016/j.ijrmhm.2019.104998
LIEBER A , BENJAMIN R , LYONS P , et al . Micro-channel plate as a parallel-bore collimator for soft X-ray imaging [J]. Nuclear Instruments and Methods , 1975 , 125 ( 4 ): 553 - 556 . doi: 10.1016/0029-554x(75)90472-3 http://dx.doi.org/10.1016/0029-554x(75)90472-3
郑春晓 , 蔡明生 , 胡一鸣 , 等 . 硬X射线成像望远镜系统初步研究 [J]. 天文学报 , 2014 , 55 ( 2 ): 154 - 169 . doi: 10.3969/j.issn.0001-5245.2014.02.006 http://dx.doi.org/10.3969/j.issn.0001-5245.2014.02.006
ZHENG C X , CAI M S , HU Y M , et al . A preliminary research on the development of the hard X-ray imaging telescope [J]. Acta Astronomica Sinica , 2014 , 55 ( 2 ): 154 - 169 . (in Chinese) . doi: 10.3969/j.issn.0001-5245.2014.02.006 http://dx.doi.org/10.3969/j.issn.0001-5245.2014.02.006
LI F Z , LIU Z G , SUN T X . Energy-dispersive small-angle X-ray scattering with cone collimation using X-ray capillary optics [J]. The Review of Scientific Instruments , 2016 , 87 ( 9 ): 093106 . doi: 10.1063/1.4962709 http://dx.doi.org/10.1063/1.4962709
HAMPAI D , GUGLIELMOTTI V , MARCELLI A , et al . Shaped X-ray beams by channeling in polycapillary optics [J]. Radiation Physics and Chemistry , 2020 , 174 : 108965 . doi: 10.1016/j.radphyschem.2020.108965 http://dx.doi.org/10.1016/j.radphyschem.2020.108965
KHONG J C , SPELLER R , DORKINGS S , et al . Rapid prototyping of cost efficient X-ray collimators [J]. Manufacturing Letters , 2019 , 20 : 49 - 53 . doi: 10.1016/j.mfglet.2019.05.001 http://dx.doi.org/10.1016/j.mfglet.2019.05.001
DABAGOV S B , UBERALL H . On X-ray channeling in narrow guides [J]. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions With Materials and Atoms , 2008 , 266 ( 17 ): 3881 - 3887 . doi: 10.1016/j.nimb.2008.03.238 http://dx.doi.org/10.1016/j.nimb.2008.03.238
王建英 , 邹晶 , 陈津平 , 等 . 基于毛细管的X射线显微成像系统可行性 [J]. 纳米技术与精密工程 , 2017 , 15 ( 6 ): 507 - 512 . doi: 10.13494/j.npe.20160112 http://dx.doi.org/10.13494/j.npe.20160112
WANG J Y , ZOU J , CHEN J P , et al . Feasibility of X-ray microscope imaging system based on polycapillary [J]. Nanotechnology and Precision Engineering , 2017 , 15 ( 6 ): 507 - 512 . (in Chinese) . doi: 10.13494/j.npe.20160112 http://dx.doi.org/10.13494/j.npe.20160112
周洪军 , 钟鹏飞 , 郑津津 , 等 . 不同厚度Al滤片对17~33nm高次谐波抑制的定量研究 [J]. 光学 精密工程 , 2007 , 15 ( 7 ): 1016 - 1020 . doi: 10.3321/j.issn:1004-924X.2007.07.004 http://dx.doi.org/10.3321/j.issn:1004-924X.2007.07.004
ZHOU H J , ZHONG P F , ZHENG J J , et al . Quantitative research on higher order harmonic suppression in 17 3 3 nm with different thickness Al filters [J]. Optics and Precision Engineering , 2007 , 15 ( 7 ): 1016 - 1020 . (in Chinese) . doi: 10.3321/j.issn:1004-924X.2007.07.004 http://dx.doi.org/10.3321/j.issn:1004-924X.2007.07.004
陈田祥 , 高娜 , 李琳 , 等 . 空间X射线探测用遮光膜的光学性能表征 [J]. 光学 精密工程 , 2019 , 27 ( 11 ): 2337 - 2342 . doi: 10.3788/ope.20192711.2337 http://dx.doi.org/10.3788/ope.20192711.2337
CHEN T X , GAO N , LI L , et al . Optical property characterization of optical blocking filters used in space X-ray survey [J]. Optics and Precision Engineering , 2019 , 27 ( 11 ): 2337 - 2342 . (in Chinese) . doi: 10.3788/ope.20192711.2337 http://dx.doi.org/10.3788/ope.20192711.2337
PREM P , VEERLA S , NARASIMHA R A V , et al . High speed silicon wet anisotropic etching for applications in bulk micromachining: a review [J]. Micro and Nano Systems Letters , 2021 , 9 ( 1 ): 1 - 59 . doi: 10.1186/s40486-021-00129-0 http://dx.doi.org/10.1186/s40486-021-00129-0
LI Y J , CHEN Y F , WANG H C , et al . A novel and reliable approach for controlling silicon membrane thickness with smooth surface [J]. Microelectronic Engineering , 2022 , 251 : 111640 . doi: 10.1016/j.mee.2021.111640 http://dx.doi.org/10.1016/j.mee.2021.111640
DOBISZ E A . Reduction and elimination of proximity effects [J]. Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures , 1993 , 11 ( 6 ): 2733 . doi: 10.1116/1.586593 http://dx.doi.org/10.1116/1.586593
0
Views
602
下载量
1
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution