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Selective Cu Electrodeposition on Micrometer Trenches Using Microcontact Printing and Additives

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Selective deposition was performed on a micrometer trench pattern using a microcontact printing (μCP) process. Alkanethiols required for selective deposition were analyzed according to the carbon chain by linear sweep voltammetry (LSV). According to the LSV analysis, the effect of inhibiting Cu deposition depending on the length of the carbon chain was observed. During the Cu electrodeposition, the trench could be filled without voids by additives (PEG, SPS, JGB) in the plating solution. A μCP process suppressing the deposition of the sample was used for selective Cu electrodeposition. However, there was oxidation and instability of the sample and 1-hexadecanethiol in air. To overcome these problems, the μCP method was performed in a glove box to achieve effective inhibition.
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Twórcy
autor
  • Hanyang University, Department of Material Science & Chemical Engineering, Ansan, Korea
autor
  • Hanyang University, Department of Material Science & Chemical Engineering, Ansan, Korea
  • Hanyang University, Department of Material Science & Chemical Engineering, Ansan, Korea
Bibliografia
  • [1] P. C. Andricacos, C. Uzoh, J. O. Dukovic, J. Horkans, H. Deligianni, Damascene copper electroplating for chip interconnections, IBM Journal of Research and Development 42 (1998) 567-574.
  • [2] S.-Y. Chang, C.-W. Lin, H.-H. Hsu, J.-H. Fang, S.-J. Lin, Integrated Electrochemical Deposition of Copper Metallization for Ultralarge-Scale Integrated Circuits, Journal of The Electrochemical Society 151, C81 (2004).
  • [3] M. J. Kim, Y. Seo, H. C. Kim, Y. Lee, S. Choe, Y. G. Kim, S. K. Cho, J. J. Kim, Galvanostatic bottom-up filling of TSV-like trenches: Choline-based leveler containing two quaternary ammoniums, Electrochimica Acta 163, 174-181 (2015).
  • [4] V. S. Rao, C. T. Chong, D. Ho, D. M. Zhi, C. S. Choong, L. P. S. Sharon, D. Ismael, Y. Y. Liang, Development of High Density Fan Out Wafer Level Package (HD FOWLP) with Multi-layer Fine Pitch RDL for Mobile Applications, in: 2016 IEEE 66th Electronic Components and Technology Conference (ECTC), 1522-1529 (2016).
  • [5] F. I. Lizama-Tzec, L. Canché-Canul, G. Oskam, Electrodeposition of copper into trenches from a citrate plating bath, Electrochimica Acta, 56, 9391-9396 (2011).
  • [6] T. P. Moffat, J. E. Bonevich, W. H. Huber, A. Stanishevsky, D. R. Kelly, G. R. Stafford, D. Josell, Superconformal Electrodeposition of Copper in 500–90 nm Features, Journal of The Electrochemical Society 147, 4524 (2000).
  • [7] F. Q. Liu, T. Du, A. Duboust, S. Tsai, W.-Y. Hsu, Cu Planarization in Electrochemical Mechanical Planarization, Journal of The Electrochemical Society 153, C377 (2006).
  • [8] S. Deshpande, S. C. Kuiry, M. Klimov, Y. Obeng, S. Seal, Chemical Mechanical Planarization of Copper: Role of Oxidants and Inhibitors, Journal of The Electrochemical Society 151, G788 (2004).
  • [9] F. B. Kaufman, D. B. Thompson, R. E. Broadie, M. A. Jaso, W. L. Guthrie, D. J. Pearson, M. B. Small, Chemical‐Mechanical Polishing for Fabricating Patterned W Metal Features as Chip Interconnects, Journal of The Electrochemical Society 13, 3460-3465 (1991).
  • [10] N. B. Larsen, H. Biebuyck, E. Delamarche, B. Michel, Order in Microcontact Printed Self-Assembled Monolayers, Journal of the American Chemical Society 119, 3017-3026 (1997).
  • [11] S. H. Lee, W.-Y. Rho, S. J. Park, J. Kim, O. S. Kwon, B.-H. Jun, Multifunctional self-assembled monolayers via microcontact printing and degas-driven flow guided patterning, Scientific Reports 8, 16763 (2018).
  • [12] T. E. Balmer, H. Schmid, R. Stutz, E. Delamarche, B. Michel, N. D. Spencer, H. Wolf, Diffusion of alkanethiols in PDMS and its implications on microcontact printing (μCP), Langmuir 21, 622-632 (2005).
  • [13] M. Hasegawa, Y. Negishi, T. Nakanishi, T. Osaka, Effects of additives on copper electrodeposition in submicrometer trenches, Journal of The Electrochemical Society 152, C221 (2005)
  • [14] M. H. Schoenfisch, J. E. Pemberton, Air Stability of Alkanethiol Self-Assembled Monolayers on Silver and Gold Surfaces, Journal of the American Chemical Society 120, 4502-4513 (1998).
  • [15] N. T. Flynn, T. N. T. Tran, M. J. Cima, R. Langer, Long-term stability of self-assembled monolayers in biological media, Langmuir 19, 10909-10915 (2003)
Uwagi
1. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2015R1A5A1037548) and research was supported by the MOTIE (Ministry of Trade, Industry & Energy (No. 10067804) and KSRC (Korea Semiconductor Research Consortium) support program for the development of the future semiconductor device and work was supported by the Technology Innovation Program (20005011, Development of materials and process technology for highly luminance micro display with 2000 PPI resolution) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea)
2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d23d95df-d0cc-4858-aed3-74b643dd2b1d
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