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Phase Change Recording in 12-inch TrueWORM Technology
Overview
Optical Write-Once-Read-Many (WORM) recording is a mature technology. As shown in the timeline below, Philips first exhibited this technology in 1979 and commercialized it five years later in a joint venture with Control Data Corporation.
This paper will discuss the differences between ablative and phase change recording and show that phase change is an equally, if not more, permanent recording technology.
Both ablative and phase change optical recording use the same basic principal of writing data to a disk by locally changing the reflectance of a recording layer. A recording layer may be a single thin film alloy, or it may be a stack of several thin film alloys deposited on top of each other.
| Publisher | Plasmon Data Systems | File Format | HTML |
|---|---|---|---|
| Date Published | January 2001 | Downloads | 100 |
| Format | White Papers | ||
| Topics | |||
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