Dielectric Stacking Effect of Al2O3 and HfO2 in Metal-Insulator-Metal Capacitor
- Authors
- Park, In-Sung; Ryu, Kyoung-min; Jeong, Jaehack; Ahn, Jinho
- Issue Date
- Jan-2013
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Aluminum oxide; dielectric stacking; hafnium oxide; high-kappa dielectrics; metal-insulator-metal (MIM) capacitor
- Citation
- IEEE Electron Device Letters, v.34, no.1, pp 120 - 122
- Pages
- 3
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- IEEE Electron Device Letters
- Volume
- 34
- Number
- 1
- Start Page
- 120
- End Page
- 122
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163662
- DOI
- 10.1109/LED.2012.2228162
- ISSN
- 0741-3106
1558-0563
- Abstract
- The dielectric stacking effects of Al2O3 and HfO2 thin layers in metal-insulator-metal capacitors are investigated for their leakage current, breakdown voltage, and voltage linearity of the dielectrics. The stacked dielectrics over three layers show the enhancement of dielectric permittivity and voltage linearity of quadratic voltage coefficient compared to one-layer dielectrics. Stacking over five layers attributes to improving leakage current density and breakdown voltage characteristics than three layers.
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