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Crystals
Volume 10
Issue 6
10.3390/cryst10060520
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Article

Investigation of the Blistering and Exfoliation Mechanism of GaAs Wafers and SiO2/Si3N4/GaAs Wafers by He+ and H+ Implantation

by
Rui Huang
1,
Tian Lan
1,*,
Chong Li
2,
Jing Li
1 and
Zhiyong Wang
1,*
1
Institute of Advanced Technology on Semiconductor Optics & Electronics, Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
2
College of Microelectronics, Beijing University of Technology, Beijing 100124, China
*
Authors to whom correspondence should be addressed.
Crystals 2020, 10(6), 520; https://doi.org/10.3390/cryst10060520
Submission received: 2 June 2020 / Revised: 11 June 2020 / Accepted: 15 June 2020 / Published: 17 June 2020
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Abstract

The thermally activated blistering and exfoliation of GaAs wafers and SiO2/Si3N4/GaAs wafers after H+ and He+ implantation is systematically investigated. Surface morphologies and microscopic defects are detected and analyzed by various measurements, such as optical microscopy (OM), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Blistering and exfoliation are obtained on the surfaces of the GaAs and SiO2/Si3N4/GaAs wafers by either the exclusive implantation of 5 × 1016 He+/cm2 alone or by co-implantation of 0.5 × 1016 He+/cm2 and 4 × 1016 H+/cm2. Our experimental results show that the blistering and exfoliation of the SiO2/Si3N4/GaAs layer occurred when the concentration of He+ was relatively low, where fewer dislocations and nanocavities were created near the interface between the Si3N4 and GaAs layers.
Keywords: GaAs; blistering and exfoliation; microscopic defects; dislocations and nanocavities GaAs; blistering and exfoliation; microscopic defects; dislocations and nanocavities

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MDPI and ACS Style

Huang, R.; Lan, T.; Li, C.; Li, J.; Wang, Z. Investigation of the Blistering and Exfoliation Mechanism of GaAs Wafers and SiO2/Si3N4/GaAs Wafers by He+ and H+ Implantation. Crystals 2020, 10, 520. https://doi.org/10.3390/cryst10060520

AMA Style

Huang R, Lan T, Li C, Li J, Wang Z. Investigation of the Blistering and Exfoliation Mechanism of GaAs Wafers and SiO2/Si3N4/GaAs Wafers by He+ and H+ Implantation. Crystals. 2020; 10(6):520. https://doi.org/10.3390/cryst10060520

Chicago/Turabian Style

Huang, Rui, Tian Lan, Chong Li, Jing Li, and Zhiyong Wang. 2020. "Investigation of the Blistering and Exfoliation Mechanism of GaAs Wafers and SiO2/Si3N4/GaAs Wafers by He+ and H+ Implantation" Crystals 10, no. 6: 520. https://doi.org/10.3390/cryst10060520

APA Style

Huang, R., Lan, T., Li, C., Li, J., & Wang, Z. (2020). Investigation of the Blistering and Exfoliation Mechanism of GaAs Wafers and SiO2/Si3N4/GaAs Wafers by He+ and H+ Implantation. Crystals, 10(6), 520. https://doi.org/10.3390/cryst10060520

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