TW200415595A - Multi-stack optical information carrier comprising thermochromic layer - Google Patents

Multi-stack optical information carrier comprising thermochromic layer Download PDF

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Publication number
TW200415595A
TW200415595A TW092119816A TW92119816A TW200415595A TW 200415595 A TW200415595 A TW 200415595A TW 092119816 A TW092119816 A TW 092119816A TW 92119816 A TW92119816 A TW 92119816A TW 200415595 A TW200415595 A TW 200415595A
Authority
TW
Taiwan
Prior art keywords
layer
recording
information carrier
optical information
stack
Prior art date
Application number
TW092119816A
Other languages
English (en)
Inventor
Erwin Rinaldo Meinders
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of TW200415595A publication Critical patent/TW200415595A/zh

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording layers
    • G11B7/24038—Multiple laminated recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G—PHYSICS
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25706—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing transition metal elements (Zn, Fe, Co, Ni, Pt)
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    • G11—INFORMATION STORAGE
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25708—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 13 elements (B, Al, Ga)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/2571—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 14 elements except carbon (Si, Ge, Sn, Pb)
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    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25713—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing nitrogen
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
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    • G11—INFORMATION STORAGE
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    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
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    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
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    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Description

200415595 玖、發明說明： 【發明所屬之技術領域】 本發明係關於-種用來以一雷射光束記錄資訊用之多 堆疊光學資訊載體，該光學資訊載體包含： -一基板層， -至少兩個記錄堆疊，每—個皆包含—記錄層、至少一 散熱層以及介於該記錄層和該至少一散熱層之間的介電 層， -至少二分離該至少兩個記錄堆疊之間隙層，以及 -一覆蓋層。 【先前技術】 此種多堆疊光學資訊載體是已知的，例如從美國專利第 6,190,750號。此種光學資訊載體係應用來在dvd或dvr技 術中做為可記錄（單次寫入）或可複窝（多次寫入）資訊載 體，例如包含兩層相變化材料之雙層碟片。 在此種光學資訊載體中，該等記錄層係由相變化材料製 成，例如硫族元素化物（chalC0genide)合金、Ge2Sb2Te5合 金、碲化銻（SbTe)合金等。另外有用的合金是銦-銻—碲、 碲-硒-碲、銀-銦-銻—碲、鍺—錮—銻—碲或鍺一 碲。特別有用的化合物在專利申請案w〇 〇1/1337〇和〜〇 97/50084中敘述。該等材料的特徵在於該相變化材料能夠 有一結晶和一非結晶相。該非結晶相係利用一聚焦雷射光 束將該最初為結晶的記錄層局部加熱至高於其炫點溫 度，隨後將其淬火（急速冷卻）來獲得。該結晶相係利用聚 86489.doc 200415595 焦雷射光點將該非結晶相加熱至高於其玻璃轉換溫度以 容终該相變化材料再結晶化來獲得。這些相變化是可逆 的’使得此材料適用於多次窝入循環。單次寫入也是可能 的。藉由應用一連串具有高（寫入）和低（清除）雷射功率的雷 射脈衝可彳于到代表二元資料之非結晶記號和結晶 空白（spaces)的交替順序。該非結晶相和該結晶相之不同的 光學特性容許資料被讀出。此類型的相變化材料也可以應 用在單次寫入碟片上。該相變化材料的最初狀態可以是沈 積芫之非結晶相或結晶相，窝入記號的相則是其對應相。 這表示非結晶3己號可以利用溶化—淬火該相變化層來寫 入。結晶記號則可利用該最初為非結晶材料的結晶化來寫 入0 在一雙堆疊資訊載體中，兩個資訊（記錄）層係利用同樣 的光學雷射光束來寫入和讀取。為了光學存取該位於深處 的記錄堆疊，該第一記錄堆疊必須是半透明的。為了能夠 在該位於深處的記錄堆疊中寫入資料，該第一記錄堆疊需 要約50%的透明度。若該第一記錄堆疊的反射率是ι〇%， 仍然有約40%的該入射光的吸收。只有從該等記錄堆疊刪 去厚的金屬散熱層才能達到50%的傳播率。這些厚的金屬 層通常在習知的相變化記錄堆疊中使用。删去一厚的金屬 散熱層會導致冷卻遲緩效應。該熱響應可以利用添加薄的 金屬層來改進，例如10奈米的銀層，或半透明的散熱層。 雖然冷卻速率已藉由添加這些半透明散熱層而得到顯著 改進，但吸收仍然是40%。結果是需要更多的雷射功=來 86489.doc 200415595 熔化—淬火該相變化層以在該結晶層内寫入非結晶記 唬。通常，當應用熱傳導性為通常用在單堆疊像變化碟片 中之I化鋅—二氧化矽的五倍之半透明散熱層時， 而 倍的寫入功率。 兩 【發明内容】 因此本發明之一目的在於提供一多堆疊光學資訊載 把，其在寫入期間具有一改良的敏感度，特別是該第—記 錄堆疊。 u 此目的係根據本發明利用一如申請專利範圍第丨項所主 張的資訊載體來達到，其特徵在於至少一記錄堆疊進一步 包含至少一具有取決於溫度的光學特性之熱鉻層，以在記 錄期間改良該等記錄堆疊的至少一個之敏感度。 本發明的構想係基於一熱鉻層的存在只在將資料寫入 忒第一记綠堆疊内時才會被感應到，也就是說，該雷射光 束係水焦於该相變化記錄堆疊上。更明確地說，應將一雙 堆疊光學記錄載體視為一實例，其包含兩個利用一約1〇 — 100微米厚（較低的值代表高密度資訊載體，例如BD(從前 的DVR系統），較高的值代表例如DVD雙堆疊碟片）的間隙 層來刀離的圯錄堆疊。在一種情況中，當該入射雷射光束 聚焦在該位於深處的記錄堆疊上時，該第一記錄堆疊感受 到一失焦的雷射光束。雖然該第一記錄堆疊的吸收仍然是 40% ’但光學能量係散佈在一非常大的區域。該光學能量 密度是如此的低而無法有效加熱該第一記錄堆疊。在此情 況下’該額外的熱鉻層維持在低溫度，並且該熱鉻層的光 86489.doc -9- 200415595 學特性不會有顯著的變化。 在其他情況中，當該雷射光束聚焦在該第一記錄層上 時，这光學能量密度會因為繞射有限的光點而高許多。所 吸收的雷射功率，40%的入射光，現在集中在一非常小的 區域内，因此相應的溫度攀升輕易地達到該相變化材料的 熔站、右有一熱鉻層位於該相變化層的鄰近處，該熱鉻層 也會感受到一顯著的溫度攀升（1〇〇—2〇(rc)。此溫度攀升足 以使該熱鉻層的光學特性劇烈變化。這導致該熱路層的反 射增加或吸收增加。吸收的增加導致溫度上升。以此方式 了達到:自增強效應，其中更多的雷射功率有效地被用來 加熱該第一記錄堆叠，而能夠寫入和清除資料。 邊多堆登光學資訊載體的較佳實施例在該等附屬項中 界足。在一第-實施例中，該熱絡層具有一取決於溫度的 吸收特性，在此情況中較佳地係使用_熱鉻染料材料來做 為材枓’特別是花青或酉太花青染料。根據另外的實施 熱路層具有一取決於溫度的反射特性，在此情況 中較佳地係使用二氧化叙來做為材料。 寫入期間之敏感度的進一步 ,甘士—父 7改善可猎由一實施例來達 成、、中母-個記錄堆疊都包含至 ^ /田舍、A丨丄 2鉻層。此外，在 另一個貝她例中，至少一記錄堆聂工 ^ ^ ^二钤、 且 S 土 >、兩層熱鉻層， 也就疋…騎層的每一側都有—利 離的熱鉻層。因此，甚至每一 ^ 一 式配置的兩個熱_。 场層都可以包含以此方 【實施方式】 86489.doc •10- 200415595 圖1概略示出根據本發明之一雙層資訊載體之第一實施 例的^面圖。所示者為，由上，該雷射光L入射處，至下，： 一保護用之覆蓋層C， 第透明散熱層H1，例如由氧化銦錫（IT〇)、氮化鋁 (Α1Ν)或氮化給…沉）組成， 7做為干擾層之介電層丨，例如由五氧化二妲、硫化鋅— 一氧化矽、二氧化鈦組成， 一做為吸收層之第一熱鉻層T1，例如由一熱鉻染料組 成， 一 一介電層I， 一第一相變化記錄層以，例如由Ge τ々μ u如田(aedbje5或摻雜的碲化 銻組成， 一介電層I， 一第二熱鉻層T2， 一介電層I， 一第二散熱層H2， 一間隙層R， 米）， 以光學及熱分離該兩個記綠堆疊（1㈡〇〇微 一介電層I， 一第三散熱層H3， 一介電層I， 一第三熱鉻層T3， 一介電層I， 一第二相變化記錄層P2， 86489.doc -11 - 200415595 一介電層i， 一做為吸收層之第四熱絡層Τ4， 一介電層I， 一第四散熱層Η4，其必須不是半透明的，但可由一金屬 組成，例如銀、銘，以及 一基板S，例如聚碳酸酯。 如上所述，當該雷射光束L聚焦在該第二記錄堆疊L2上 時’其仍然有50%的入射雷射功率可用來寫入該位置較低 的L2堆疊i因為在高至約1〇〇。〇的溫度下該等熱路層τι、 T2具有足夠鬲的傳播率。但是，當該雷射光束聚焦在該較 上層的記錄堆疊L1上時，會將包含該等額外的熱路層τ丨和 Τ2之該堆疊L1加熱。這牵涉到該熱鉻層的光學特性之顯著 改變，並因為該等熱鉻層ΤΙ、Τ2的反射或吸收的增加而導 致堆疊L1的吸收增加。因此，更多的雷射功率被有效地利 用來加熱該第一記錄層Ρ1，並提供一自增強效應。 介於該相變化層Ρ1和該熱鉻層Τ1和Τ2之間的該介電層j 的厚度可經選擇以使這些層的溫度下降會導致τ丨和Τ2之 取大限度的溫度上升，因而有最大限度的吸收結果（即，該 温度不應超過2 5 0 °C以防止該熱路層分解）。對於本發明之 卓次寫入貫施例來說’該分解不是一個問題，因此可容許 這些較高的溫度。此外，該堆疊中的其他層也會對整個堆 疊的熱響應有影響，因此，其厚度和熱特性（讀出材料）應 謹慎選擇以確保該等熱鉻層之最大限度的溫度上升。 所敘述的實施例可經修飾，例如只提供如所示之具有一 86489.doc 200415595 層或兩層額外的熱鉻層之該較上層記錄堆疊L 1，但不提供 該較低的記錄堆疊L2。此外，可以提供多於兩層的記錄堆 疊。更進一步，也可以省略提供在該等記錄層ρι、打之每 一側上的該等介電層I。 根據本發明之一光學資訊載體的另一個實施例概略的 在圖2中以剖面示出。在圖中，再一次提供兩個記錄堆疊 L 1、L2，每一個分別包含一層額外的熱鉻層T1或丁2。在此 實施例中’該等熱鉻層以、丁2係經調整而顯示出一取決於 溫度的反射特性，即，該等熱鉻層T1、丁2的反射率隨著溫 度增加。較佳地，利用二氧化釩（V〇2)來做為此種熱鉻層的 材料。 研究兩種類型的碟片（CD-R)，也就是花青和酉太花青染 料，之取決於溫度的吸收。酉太花青染料之取決於溫度的 吸收在圖3中示出。直流寫入期間和直流窝入之後的反射 做為所應用的連續寫入功率之函數示出。可觀察到一清楚 的反射率可逆地下降之功率範圍。這表示在寫入期間，於 一提高的溫度下，該堆疊的吸收顯著地增加，但在該雷射 光點通過後，當該堆疊冷卻下來之後，該反射保持在其原 始值（在室溫下）。
也測量一酉太花青染料做為溫度之函數的反射變化，見 圖4。實驗係在一氮氣和氧氣環境中執行。可清楚觀察到 兩個現象。反射之逐步的可逆下降係歸因於隨著溫度上升 而增加的吸收。此外，在275它附近之染料的不可逆衰退。 兩個結果皆況明遠染料的吸收係取決於溫度。若在一 I p I 86489.doc -13 - 200415595 相變化堆疊中使用一染料雷射，導致一 ιρι —染料堆疊，該 染料層會在升高的溫度下開始吸收雷射光。為了避免該染 料層的衰退，在一可複寫格式應用中，介於該記錄層（P) 和熱絡染料層（T)之間的介電層較佳地應該在10 — 2⑽奈米 之間，特別是在30 - 100奈米之間。 在其他貫施例中，建議使用一染料雷射來做為一熱鉻反 射益·在升高的溫度下，折射率的改變導致該記錄層之吸 收的增加。光學計算證實此現象。 也可能在一單次寫入PC碟片中應用一額外的染料層：一 多堆@碟片：IPI —染料—間隙—Ιρι _染料_等等，或染 料-IPI -染料-間隙-染料—IPI _染料-間隙等等。 介於孩記錄和染料層之間的介電層較佳地係在〇和5〇奈 米之間’因此可容許該染料的衰退。 圖5 出IPI —染料堆疊之取決於溫度的反射，在該記錄 堆:®:的加熱和冷卻期間測量。可以從該測量清楚的觀察到 由該熱鉻層所導致的該堆疊之光學特性的可逆改變。所示 者為標準化的反射1和標準化的傳播2之測量結果。 【圖式簡單說明】 本發明參考圖示來做更詳細的說明，其中·· 圖1概略7F出根據本發明之一光學資訊載體之第一眘施 例的剖面圖， ' 圖2概略不出根據本發明之一光學資訊裁體之另一個實 施例的剖面圖， 、 圖3示出兩個記錄速度之直流寫入期間和之後的反射關 86489.doc -14 - 200415595 於該直流電力的函數圖’ 圖4示出酉太花青染料的反射關於溫度的函數圖，以及 圖5示出IPI染料堆疊之取決於溫度的反射。 【元件代表符號】 L1，L2記錄堆疊 C覆蓋層 H1-H4散熱層 I介電層 P1，P2記錄層 T1-T4熱鉻層 R間隙 S基板層
86489.doc -15-

Claims (1)

  1. 200415595 拾、申請專利範圍： 1. 一種以一雷射光束記錄資訊之多堆疊光學資訊載體，該 光學資訊載體包含： 一基板層， 至少兩個記錄堆疊，每一個皆包含一記錄層、至少一 散熱層以及介於孩記錄層和該至少一散熱層之間的介電 層， 至少一分離孩至少兩個記錄堆疊之間隙層，以及 一覆.炎層， 特徵在於至少一 1己錄堆疊進一步包含至少一具有取決 於溫度的光學特性之熱絡層，以在記錄期間改良該等記 錄堆受的至少一個之敏感度。 2_如申請專利範圍第1項之多堆疊光學資訊載體，其特徵在 於該至少一熱鉻層具有一取決於溫度的吸收特性。 3·如申請專利範圍第2項之多堆疊光學資訊載體，其特徵在 於該熱絡層主要係由一熱路染料組成，特別是花青或酉 太花青染料。 4·如申請專利範圍第1項之多堆疊光學資訊載體，其特徵在 於該至少一熱鉻層具有一取決於溫度的反射特性。 5·如申請專利範圍第4項之多堆疊光學資訊載體，其特徵在 於該熱鉻層主要係由二氧化釩組成。 6.如申請專利範圍第1項之多堆疊光學資訊載體，其特徵在 於每一個記錄堆疊皆包含至少一層熱鉻層。 7·如申請專利範圍第1項之多堆疊光學資訊載體，其特徵在 86489.doc 200415595 於土 7 ό己錄堆叠在該+F7 h ^人* 〜層的兩側上含有-轉層， 並且含有用來將該等熱鉻層邀 …、 ^ u己綠層分開的介雷声。 8 ·如申請專利範圍第1項之多最與次、 3 队m 宜光予貝矶載體，其特徵在 於这寺记紅層係由一相變化材料組成。 9·如申請專利範圍第丨項之多 ▲ a、七 且尤子貝、訊載體，其特徵名 於该寺記錄層係由一單次寫入材料組成。 r 文在 86489.doc
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ATE336785T1 (de) 2006-09-15
US20050270960A1 (en) 2005-12-08
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DE60307646T2 (de) 2007-08-09
EP1527448B1 (en) 2006-08-16
KR20050029308A (ko) 2005-03-25
WO2004010424A1 (en) 2004-01-29
CN1672203A (zh) 2005-09-21
DE60307646D1 (de) 2006-09-28
EP1527448A1 (en) 2005-05-04

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