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3.
Layer design of the 4.7GB DVD-RAM :
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The
layer design of the 4.7GB DVD-RAM disc is a seven layers design to increasing
direct over write characterists to 105
The functions of interface layers is to * Enhance active material strength , * Improve interface's nucleation rate, * Reduce temperature of nucleation , * Prevent sulfur diffuse to active layer, * Prevent deformed of active layer . The functions of Compensation layer is to * Vertical heat diffusion mechanism , * Optical compensate for crystalline / amorphous to 1.2 , * Prevent deformed of marks and retune erase, * Prevent to form big grain ring * Reduce flow of active material, * Reduce cross erase |
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4. Layer
design of 4.7GB DVD-RW :
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No.5, Duxing Rd., Hsinchu Science Park, Hsinchu City 300, Taiwan (R.O.C.)
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www.optodisc.com
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