Published September 19, 2011 | Version v1
Journal article

Crystallization mechanisms and recording characteristics of Si/CuSi bilayer for write-once blu-ray disc

  • 1. Departmant of Materials Science and Engineering, National Taiwan University, Taipei 10617, Taiwan (China)
  • 2. Department of Materials Engineering and Center for Thin Film Technologies and Applications, Ming Chi University of Technology, Taipei 243, Taiwan (China)
  • 3. CMC Magnetics Corporation, Taoyuan 333, Taiwan (China)
  • 4. Instrument Technology Research Center, National Applied Research Laboratories, Hsinchu 300, Taiwan (China)

Description

The crystallization mechanisms of Si/CuSi bilayer and its recording characteristics for write-once blu-ray disc (BD-R) were investigated. It was found that Cu3Si phase appeared during the room temperature sputtered deposition. Then, the Si atoms in CuSi layer segregated and crystallized to cubic Si in Cu3Si nucleation sites as the film was annealed at 270 deg. C. After heating to 500 deg. C, the grains size of cubic Si phase grew and the hexagonal Si phase was observed. The dynamic tests show that the Si/CuSi bilayer has great feasibility for 1-4x BD-R with the bottom jitter values below 6.5%.

Additional details

Identifiers

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
99
Journal Issue
12
Journal Page Range
p. 121908-121908.3
ISSN
0003-6951
CODEN
APPLAB

Optional Information

Notes
(c) 2011 American Institute of Physics