Infrared and Laser Engineering, Volume. 52, Issue 12, 20230285(2023)
Research progress of excimer laser annealing in semiconductor integrated circuit manufacturing
Fig. 2. SIMS diagram about laser annealing Ge SIMS diagram in different energy densities[41]
Fig. 4. Laser annealing cross section simulation of nanowire-structured devices[41]
Fig. 5. Process flow for M1 interconnects with melt laser anneal in 14 nm Finfet divice[41]
Fig. 6. 3D sequential integration related problem induction diagram[41]
Fig. 7. Phase field evolution of single pulse ELA process at 0.717 J/cm2, the time interval between the two phase field profiles is 5 ns[65]
Fig. 8. Density field evolution during a single pulse ELA at 0.717 J/cm2[65]
Fig. 9. Surface simulation curve and SIMS curve of As after ten pulses[65]
Fig. 10. Simulation diagram of Si melt depth varying with laser energy density at substrate temperature of 450 ℃[66]
Fig. 11. SIMS diagram of (a) spike annealing and (b) excimer laser annealing[67]
Fig. 13. Variation of sheet resistance and junction depth with laser energy density[68]
Fig. 16. SIMS curves of Sb before and after excimer laser annealing[70]
Fig. 18. Heat distribution after 65 ns 308 nm laser irradiation (a) bulk silicon devices and (b) SOI devices[71]
Fig. 19. The effect of laser energy density approaching the full melting threshold on the activation of dopants[72]
Fig. 20. TEM images of materials treated by excimer laser with different energy densities[74]
Fig. 21. (a) Time resolved reflectance (TRR) and laser pulse profile at different laser energy densities; (b) The relationship between reflectance and laser energy density[75]
Fig. 22. TEM images about 30 nm Si0.8Ge0.2 thickness annealed by (a)-(b) 1.59 J/cm2, (c)-(d) 1.80 J/cm2 and (e)-(f) 2.00 J/cm2 exci-mer laser[75]
Fig. 23. (a) Temperature field and (b) time evolution of interconnect structures treated by pulsed laser (ULK/Cu)[77]
Fig. 24. Effect of multiple pulses on sheet resistance at 400 ℃[78]
Fig. 25. TEM images of cross sections of materials subjected to heat annealing at 400 ℃ for 1 hour or excimer laser annealing[78]
Fig. 26. Electron backscatter diffraction pattern of laser annealing And grain size of metal diagram[79]
Fig. 28. TEM comparison of excimer laser annealing device (a) and spike annealing device (b)[81]
Fig. 29. Simulated structure and comparison of absorption power density of two-dimensional structure[82]
Fig. 30. The relationship between temperature and time of interlayer oxides and underlying oxides. T1: the temperature at the upper grid, T2: the temperature at the lower grid, and T3: the temperature at the top of the bulk silicon[82]
Fig. 31. The resistivity of copper interconnection wire changes with laser energy[83]
Fig. 32. The relationship between temperature and time about devices’s a-Si layer and Cu interconnection with different layers of thickness after excimer laser annealing [83]
Fig. 34. Dark field STEM diagrams of (a) full channel device, (b) macaroni-type device, and (c) macaroni-type device with excimer laser annealing[85]
Fig. 36. Drain current statistical distribution and interface traps distribution [85]
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Xuehao Yu, Xiaodong Fang, Libing You, Yizhe Wang, Molin Liu, Hao Wang. Research progress of excimer laser annealing in semiconductor integrated circuit manufacturing[J]. Infrared and Laser Engineering, 2023, 52(12): 20230285
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Received: May. 10, 2023
Accepted: --
Published Online: Feb. 23, 2024
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