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Cellulose-based eco-friendly wafer-cleaning reagent

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Abstract

As the semiconductor industry has advanced, precisely patterned wafers of the sub-nanometer scale have been produced; hence, the development of cleaning reagents to remove contaminants from such wafers has received increasing attention. However, conventional cleaning solutions have significant drawbacks, including high cost and toxicity to both humans and the environment. In this work, we developed an eco-friendly cleaning reagent containing cellulose nanocrystals (CNCs) and a biodegradable amphoteric surfactant, cocamidopropyl betaine (CAPB), at optimal concentrations. The proposed system was applicable to both bare and patterned wafers, achieving a contaminant removal efficiency of ca. 100% without wafer damage. After investigating the cleaning mechanism utilizing different analytical techniques, we determined that the synergistic effect of the CNC/CAPB and free CAPB that includes the physical bombardment, electrostatic repulsion, and the adsorption inhibition of contaminants, contribute to the effective cleaning process. We expect this eco-friendly and cost-effective cleaning reagent to be readily adopted in the production of semiconductor products, as it could reduce the overall cost of producing electronics.

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Abbreviations

CAPB:

Cocamidopropyl betaine

CNC:

Cellulose nanocrystal

MCC:

Microcrystalline cellulose

PRE:

Particle removal efficiency

FE-SEM:

Field-emission scanning electron microscopy

References

  • Bachman M (2002) RCA-2 Silicon Wafer Cleaning. INRF application note, UCI Integrated Nanosystems Research Facility, pp 1–3

  • Bearda T, Mertens PW, Beaudoin SP (2018) Chapter 2—Overview of wafer contamination and defectivity. In: Reinhardt KA, Kern W (eds) Handbook of silicon wafer cleaning technology, 3rd edn. William Andrew Publishing, Burlington, pp 87–149

    Chapter  Google Scholar 

  • Bohr M (2014) 14 nm Process Technology: Opening New Horizons. Intel Developer Forum, pp 1–53

  • Burnett CL, Bergfeld WF, Belsito DV et al (2012) Final report of the cosmetic ingredient review expert panel on the safety assessment of cocamidopropyl betaine (CAPB). Int J Toxicol 31:77S–111S

    Article  CAS  Google Scholar 

  • Chelton CF, Glowatz M, Mosovsky JA (2019) Chemical hazards in semiconductor industry. In: IEEE transactions on education. Accessed 1 May 2019

  • Dai C, Zhao J, Yan L, Zhao M (2014) Adsorption behavior of cocamidopropyl betaine under conditions of high temperature and high salinity. J Appl Polym Sci 131:40424.1–40424.7

    Google Scholar 

  • Grishkewich N, Mohammed N, Tang J, Tam KC (2017) Recent advances in the application of cellulose nanocrystals. Curr Opin Colloid Interface Sci 29:32–45

    Article  CAS  Google Scholar 

  • Kern W (2018) Chapter 1—overview and evolution of silicon wafer cleaning technology∗. In: Reinhardt KA, Kern W (eds) Handbook of silicon wafer cleaning technology, 3rd edn. William Andrew Publishing, Burlingtonm, pp 3–85

    Chapter  Google Scholar 

  • Lallart A, Garnier P, Lorenceau E et al (2018) Cleaning surfaces from nanoparticles with polymer film: impact of the polymer stripping. Micro Nano Eng 1:1–4

    Article  Google Scholar 

  • Liu H, Fang HHP (2002) Characterization of electrostatic binding sites of extracellular polymers by linear programming analysis of titration data. Biotechnol Bioeng 80:806–811

    Article  CAS  Google Scholar 

  • Merkova M, Zalesak M, Ringlova E et al (2018) Degradation of the surfactant Cocamidopropyl betaine by two bacterial strains isolated from activated sludge. Int Biodeterior Biodegrad 127:236–240

    Article  CAS  Google Scholar 

  • Prathapan R, Thapa R, Garnier G, Tabor RF (2016) Modulating the zeta potential of cellulose nanocrystals using salts and surfactants. Colloids Surf A 509:11–18

    Article  CAS  Google Scholar 

  • Qin C, Wang G, Kolahdouz M et al (2016) Impact of pattern dependency of SiGe layers grown selectively in source/drain on the performance of 14 nm node FinFETs. Solid State Electron 124:10–15

    Article  CAS  Google Scholar 

  • Saga K (2018) Metallic contamination issues in advanced semiconductor processing. ECS Trans 86:113–124

    Article  CAS  Google Scholar 

  • Stefania G, Irina L, Luoana P (2013) Biodegradability assessment of cationic and amphoteric raw materials. J Environ Protect Ecol 13:1–9

    Google Scholar 

  • Sun M, Gao B, Wang C et al (2015) Non-ionic surfactant on particles removal in post-CMP cleaning. J Semicond 36:026002–026006

    Article  Google Scholar 

  • Sun D, Kang S, Liu C et al (2016) Effect of zeta potential and particle size on the stability of SiO2 nanospheres as carrier for ultrasound imaging contrast agents. Int J Electrochem Sci 11:8520–8529

    Article  CAS  Google Scholar 

  • Tan BM, Li WW, Niu XH, Wang SL, Liu YL (2006) Effect of surfactant on removal of particle contamination on Si wafers in ULSI. Trans Nonferrous Met Soc China 16:s195–s198. https://doi.org/10.1016/S1003-6326(06)60174-X

    Article  Google Scholar 

  • Tardy BL, Yokota S, Ago M et al (2017) Nanocellulose–surfactant interactions. Curr Opin Colloid Interface Sci 29:57–67

    Article  CAS  Google Scholar 

  • Teng Y, Cui H, He X, et al (2016) Damage free removal of nanoparticles with dual-fluid spray nozzle cleaning. In: China semiconductor technology international conference, pp 1–3

  • Tsai Y-P, Shih J-R, King Y-C, Lin CJ (2018) 7 nm FinFET plasma charge recording device. In: 2018 IEEE international electron devices meeting (IEDM), pp. 17.5.1–17.5.4

  • Vereecke G, Veltens J, Xu KD et al (2007) Aging phenomena in the removal of nano-particles from Si wafers. SSP 134:155–158

    Article  Google Scholar 

  • Vos R, Lux M, Xu K et al (2001) Removal of submicrometer particles from silicon wafer surfaces using HF-based cleaning mixtures. J Electrochem Soc 148:G683–G689

    Article  CAS  Google Scholar 

  • Wang C-N, Ho H-XT (2019) The selection strategic alliance partner in semiconductor manufacturing industry based on grey system and DEA. In: IEEE, pp 83–87

  • Yae S, Nasu N, Matsumoto K et al (2007) Nucleation behavior in electroless displacement deposition of metals on silicon from hydrofluoric acid solutions. Electrochim Acta 53:35–41

    Article  CAS  Google Scholar 

  • Zhu J, An H, Alheshibri M et al (2016) Cleaning with bulk nanobubbles. Langmuir 32:11203–11211

    Article  CAS  Google Scholar 

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Acknowledgments

This work was supported by the Pattern Damage Free Chemical Development Project at SEMES.

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Correspondence to Ki Soo Park.

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Kwon, W.Y., Lee, JH., Jeon, Y.E. et al. Cellulose-based eco-friendly wafer-cleaning reagent. Cellulose 27, 3405–3412 (2020). https://doi.org/10.1007/s10570-020-03026-8

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