Observation of Recorded Marks on DVD

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Summary

  • It is important for the development of disks and recorders to observe the recorded marks on DVD.
  • We carried out an observation of the recorded marks on DVD with the SEM. We were able to observe the recorded marks clearly thanks to proper etching.

Before etching

After etching
・Only the recorded part remained due to chemical etching, and the marks wererecorded mark observed clearly.  
After etching – enlarged view

Search Number 4013

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