Progress on application of excimer laser micromachining

Abstract

Abstract: Excimer laser machining technology is based on photochemical mechanism. Excimer laser has the characteristics of short wavelength, high repetition rate, high single pulse energy, large output spot and uniform energy distribution. It has unique advantages in the field of precision and high efficiency microprocessing. Excimer laser micromachining can reduce the heat affected zone (HAZ) and effectively avoid cracks and other defects, It has a promising application prospect in the field of fine machining of materials. Research progress of excimer laser micromachining, and the application of excimer laser micromachining in the field of microelectronics integrated circuit packaging, micro-electro-mechanical system (MEMS) material processing and biological medicine are introduced. The development trend of excimer laser micromachining technology is summarized.

Key words:

CLC Number:

HE Liwen1, FANG Xiaodong2. Progress on application of excimer laser micromachining[J]. Chinese Journal of Quantum Electronics.

References

[1] Basov N G, Danilychev V A, Popov Y M, et al. Laser operating in the vacuum region of the spectrum by excitation of liquid xenon with an electron beam[J]. JETP Letters, 1970, 12(10): 329-331. [2] Yu Yingshan, You Libing, Liang Xu, et al. Progress of excimer lasers technology (Invited Paper) [J]. Chinese Journal of Lasers（中国激光）, 2010, 37(9): 2253-2270 (in Chinese) . [3] Sukumaran V, Kumar G, Ramachandran K, et al. Design, fabrication, and characterization of ultrathin 3-D glass interposers with through-package-vias at same pitch as TSVs in silicon [J]. IEEE Transactions on Components Packaging and Manufacturing Technology, 2014, 4(5): 786-795. [4] Behrmann G P, Duignan M T. Excimer laser micromachining for rapid fabrication of diffractive optical elements [J]. Applied Optics, 1997, 36(20): 4666-4674. [5] Eugénio S, Sivakumar M, Vilar R, et al. Characterisation of dentin surfaces processed with KrF excimer laser radiation [J]. Biomaterials, 2005, 26(33): 6780-6787. [6] Choi K H, Meijer J, Masuzawa T, et al. Excimer laser micromachining for 3D microstructure [J]. Journal of Materials Processing Technology, 2004, 149(1): 561-566. [7] Sugioka K, Akane T, Obata K, et al. Multiwavelength excitation processing using F2 and KrF excimer lasers for precision microfabrication of hard materials [J]. Applied Surface Science, 2002, 197: 814-821. [8] Delmdahl R, Brune J, Fechner B, et al. Enabling laser applications in microelectronics manufacturing [J]. Applied Physics A, 2016, 122(2): 116. [9] Delmdahl R, TapiéJ L. Excimer lasers drive large-area microprocessing [J]. Applied Surface Science, 2012, 258(23): 9123-9127. [10] Shaheen M, Gagnon J, Fryer B. Excimer laser ablation of aluminum: influence of spot size on ablation rate [J]. Laser Physics, 2016, 26(11): 116102. [11] Suzuki Y, Brune J, Senczuk R, et al. Demonstration of 20µm pitch micro-vias by excimer laser ablation in ultra-thin dry-film polymer dielectrics for multi-layer RDL on glass interposers [C]. IEEE Electronic Components and Technology Conference (ECTC), 2015: 922-927. [12] Suzuki Y, Hichri H, Wei F, et al. Embedded trench redistribution layers at 2～5 μm width and space by excimer laser ablation and surface planer processes for 20～40 μm I/O pitch interposers [J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2017, 7(6): 838-845. [13] Sato Y, Sitaraman S, Sukumaran V, et al. Ultra-miniaturized and surface-mountable glass-based 3D IPAC packages for RF modules [C]. IEEE Electronic Components and Technology Conference (ECTC), 2013: 1656-1661. [14] Delmdahl R, Paetzel R. Laser drilling of high-density through glass vias (TGVs) for 2.5 D and 3D packaging [J]. J. Microelectron. Packag. Soc, 2014, 21(2): 53-57. [15] Liu K W, NiCkolov Z, Oh J, et al. KrF excimer laser micromachining of MEMS materials: Characterization and applications [J]. Journal of Micromechanics and Microengineering, 2011， 22(1): 015012. [16] Liu K W, Kim Y, Noh H M, et al. ArF excimer laser micromachining of MEMS materials: Characterization and applications [J]. Journal of Micro and Nano-Manufacturing, 2014, 2(2): 021006. [17] Anuar A, Wahab Y, Fazmir H, et al. KrF excimer laser micromachining of silicon for micro-cantilever applications [C]. Proceedings of International Electronic Conference on Sensors and Applications, 2014: 1-6. [18] Saadon S, Wahab Y, bin Zahid Jamal Z A, et al. MEMS structures characterization on PMMA layer using KrF excimer laser micromachining [J]. Journal of Optoelectronics and Advanced Materials, 2015, 17(9-10): 1265-1271. [19] Töpper M, Hauck K, Schima M, et al. A sub-4 µm via technology of thinfilm polymers using scanning laser ablation [C]. IEEE Electronic Components and Technology Conference (ECTC), 2015: 388-395. [20] Huang Y X, Lu J Y , Huang J X. KrF excimer laser precision machining of hard and brittle ceramic biomaterials [J]. Biomedical Materials, 2014, 9(3): 035009. [21] Kulkova J, Moritz N, Huhtinen H, et al. Bioactive glass surface for fiber reinforced composite implants via surface etching by Excimer laser [J]. Medical Engineering and Physics, 2016, 38(7): 664-670. [22] Li J, Ananthasuresh G K. A quality study on the excimer laser micromachining of electro-thermal-compliant micro devices [J]. Journal of Micromechanics and Microengineering, 2001, 11(1): 38. [23] Desbiens J P, Masson P. ArF excimer laser micromachining of Pyrex, SiC and PZT for rapid prototyping of MEMS components [J]. Sensors and Actuators A: Physical, 2007, 136(2): 554-563. [24] Keiper B, Exner H, Löschner U, et al. Drilling of glass by excimer laser mask projection technique [J]. Journal of Laser Applications, 2000, 12(5): 189-193. [25] Yang Guishuan, Chen Tao, Chen Hong. Crack-free silicon glass surface micro-grooves etched by 248 nm excimer lasers [J]. Chinese Journal of Lasers（中国激光）, 2017, 44(9): 0902004（in Chinese）. [26] Omori N, Inoue M. Excimer laser ablation of inorganic materials [J]. Applied Surface Science, 1992, 54: 232-236. [27] Ferna E, Gil F J, Ginebra M P, et al. Calcium phosphate bone cements for clinical applications. Part I: Solution chemistry [J]. Journal of Materials Science: Materials in Medicine, 1999, 10(3): 169-176. [28]Liu Bing, Xiao Guiyong, Lu Yupeng. Preparation and cytocompatibility of brushitehydroxyapatite coating on Ti by chemical conversion [J]. Acta Materiae Compositae Sinica（复合材料学报）, 2017, (11): 2516-2522(in Chinese).