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  • 學位論文

光碟中記錄層與相變層間反應之研究

A study of reacting between recording layer and phase change layer in the disc

指導教授 : 劉宗平
共同指導教授 : 鄭尊仁

摘要


在本文中,主要著眼於僅寫一次型光碟之研究,我們利用兩種記錄材質,一種為相變化Ge-Sb-Te材料,另一則為無機CrOx薄膜,然後將兩者依序濺鍍。   針對CrOx薄膜,根據資料知道當其受熱超過400 ℃後,會開始釋放出氧氣。當訊號寫入時,相變化材料會從晶態轉變成非晶態,而後又可利用擦拭功率將訊號抹除,使得非晶態再度轉換回晶態結構,兩種情況可一再重複的變換。   因此,我們想利用被釋放出的氣體來破壞相變化層,使之當訊號寫入後,就無法再從非晶態變回晶態,透過一系列膜層結構之設計優化,將其變成為我們所想要的新型僅寫一次型機制。

並列摘要


In this study, we focused our interests on the write-once storage media. We choose two kinds of recording materials. One is phase change material which is Ge-Sb-Te, and the other we adopted CrOx. .   For CrOx thin film, according to information we found that the gas could be released from the layer as the heating temperature over 400 ℃. When signal was be written, the phase change material would convert crystal into amorphous. Then , we could use erasing power to clean original signal, and this action can make amorphous return to crystal. This situation would be convert again and again.   Therefore, we use the released gas to break the phase change layer. After the signal was be written, the disc cannot return to crystal from amorphous. Finally, we got write-once storage media through a series design optimization of layer structure.

並列關鍵字

CrOx write-once phase change

參考文獻


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4. 陳明忠論文,僅寫一次型光碟記錄媒體之研究,元智大學光電所,
5. 林瑞國論文,紅光無機記錄型光碟儲存媒體之研究,元智大學光電
6. 黃國璋論文,紅/藍光僅寫一次型光碟記錄層材料之研究,元智大學

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