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Korea Institute of Geoscience and Mineral Resources (KIGAM) 1 2015-10-10 Thin Film Analysis by Ion Beam Techniques W. Hong, G. D. Kim, H. J. Woo, H. W.

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Presentation on theme: "Korea Institute of Geoscience and Mineral Resources (KIGAM) 1 2015-10-10 Thin Film Analysis by Ion Beam Techniques W. Hong, G. D. Kim, H. J. Woo, H. W."— Presentation transcript:

1 Korea Institute of Geoscience and Mineral Resources (KIGAM) 1 2015-10-10 Thin Film Analysis by Ion Beam Techniques W. Hong, G. D. Kim, H. J. Woo, H. W. Choi and J. K. Kim Thin Film Analysis by Ion Beam Techniques W. Hong, G. D. Kim, H. J. Woo, H. W. Choi and J. K. Kim

2 Korea Institute of Geoscience and Mineral Resources (KIGAM) 2 2015-10-10 Characteristics of MeV Ion Beam Analysis Nondestructive Absolute, quantitative High sensitivity Depth profiling in the first micron Light element detection (ERDA, NRA, PIGE) Ultra high sensitive isotope measurement Versatile External Beam available

3 Korea Institute of Geoscience and Mineral Resources (KIGAM) 3 2015-10-10 RBS vs TOF-ERDA

4 Korea Institute of Geoscience and Mineral Resources (KIGAM) 4 2015-10-10 Tandem Accelerator in KIGAM

5 Korea Institute of Geoscience and Mineral Resources (KIGAM) 5 2015-10-10 Multipurpose chamber for RBS & TOF-ERD

6 Korea Institute of Geoscience and Mineral Resources (KIGAM) 6 2015-10-10 Rutherford Backscattering Spectrometry (RBS) Semiconductors Superconductors Optical films Material science

7 Korea Institute of Geoscience and Mineral Resources (KIGAM) 7 2015-10-10 BN on Si TOF-ERDA

8 Korea Institute of Geoscience and Mineral Resources (KIGAM) 8 2015-10-10 Electrolytic Li-Ni-V-O(H)/Si (1000 A) RBS resultTOF-ERD result

9 Korea Institute of Geoscience and Mineral Resources (KIGAM) 9 2015-10-10 Thick 600  10 15 atoms/ cm 2 (22.56  g/cm 2, ~ 440 A) Element Areal density Atomic ratio Areal density Mass ratio (10 15 atoms/ cm 2 ) (%) (  g/cm 2 ) (%) H 69.3 11.5 0.12 0.51 Li 112.6 18.8 1.30 5.75 O 259.7 43.3 6.90 30.59 Ar 2.6 0.43 0.17 0.76 V 86.6 14.4 7.32 32.46 Ni 69.3 11.5 6.75 29.92

10 Korea Institute of Geoscience and Mineral Resources (KIGAM) 10 2015-10-10 Electrolytic Si-P-N-O-Li on Si (2000 A) RBS resultTOF-ERD result

11 Korea Institute of Geoscience and Mineral Resources (KIGAM) 11 2015-10-10 Thick 3500  10 15 atoms/ cm 2 (87.59  g/cm 2, ~ 1600 A) Element Areal density Atomic ratio Areal density Mass ratio (10 15 atoms/ cm 2 ) (%) (  g/cm 2 ) (%) H 55.8 1.6 0.09 0.11 Li 1283.6 36.7 14.80 16.89 C 27.9 0.8 0.56 0.64 N 725.68 20.7 16.88 19.27 O 725.68 20.7 19.28 22.01 Si 117.22 3.4 5.47 6.24 P 558.21 16.0 28.71 32.77 Pt 5.58 0.2 1.81 2.06

12 Korea Institute of Geoscience and Mineral Resources (KIGAM) 12 2015-10-10 Active layer of TFT and PDP display Ru on Si (300 A) RBS resultTOF-ERD result

13 Korea Institute of Geoscience and Mineral Resources (KIGAM) 13 2015-10-10 Thick 270  10 15 atoms/ cm 2 (42.27  g/cm 2, ~ 340 A) Element Areal density Atomic ratio Areal density Mass ratio (10 15 atoms/ cm 2 ) (%) (  g/cm 2 ) (%) H 5.0 1.9 0.01 0.02 C 15.0 5.6 0.30 0.71 Ru 250.0 92.6 41.96 99.27

14 Korea Institute of Geoscience and Mineral Resources (KIGAM) 14 2015-10-10 Dielectric layer of semiconductor Ru - O on Si (300 A) RBS resultTOF-ERD result

15 Korea Institute of Geoscience and Mineral Resources (KIGAM) 15 2015-10-10 Layer 1 Thick 50  10 15 atoms/ cm 2 (3.37  g/cm 2, ~ 30 A) Element Areal density Atomic ratio Mass density Mass ratio (10 15 atoms/ cm 2) (%) (  g/cm 2 ) (%) H 17.9 35.7 0.03 0.88 C 5.4 10.7 0.11 3.17 O 8.9 17.9 0.24 7.04 Ru 17.9 35.7 3.37 88.91 Layer 2 Thick 150  10 15 atoms/ cm 2 (19.22  g/cm 2, ~ 160 A) Element Areal density Atomic ratio Mass density Mass ratio (10 15 atoms/ cm 2 ) (%) (  g/cm 2 ) (%) H 2.2 1.5 0.00 0.02 C 27.4 18.3 0.55 2.84 O 11.0 7.3 0.29 1.51 Ru 109.5 73.0 18.38 95.63

16 Korea Institute of Geoscience and Mineral Resources (KIGAM) 16 2015-10-10 Neutron generation target Ti- 3 H on Cu, 3 H(p,n) 3 He RBS result (before H irradiation) TOF-ERD result (film composition)

17 Korea Institute of Geoscience and Mineral Resources (KIGAM) 17 2015-10-10 Temperature variation of target with H irradiation RBS result (after H irradiation)

18 Korea Institute of Geoscience and Mineral Resources (KIGAM) 18 2015-10-10 Areal density of Ti (atom/cm 2 ) Areal density of 3 H (atom/cm 2 ) Before irradiationAfter irradiation Cal. by neutron cross section Maker data 1.4 x 10 19 4.6 x 10 18 1.3 x 10 19 3.8 x 10 19 1.28 x 10 19 2.5-3.8 x 10 18 4.8 x 10 18

19 Korea Institute of Geoscience and Mineral Resources (KIGAM) 19 2015-10-10 Conclusion RBS and TOF-ERD are mutually assistant in analysis from light elements to heavy elements Electrolytic films in which composition of light elements is important were analyzed It was found that Ru film can be a good dielectric film by introducing small amount of oxygen Nitrogen and oxygen were observed in a titanium tritide target and the results reduced error of neutron cross section measurement Cu migration during proton irradiation was also observed by RBS measurement in spite of cooling by freon circulation Ion beam analysis techniques are very successfully applied to many fields of thin film studies


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