TWI274079B - Sputtering target, optical information recording medium and process for producing the same - Google Patents

Sputtering target, optical information recording medium and process for producing the same Download PDF

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TWI274079B
TWI274079B TW094105009A TW94105009A TWI274079B TW I274079 B TWI274079 B TW I274079B TW 094105009 A TW094105009 A TW 094105009A TW 94105009 A TW94105009 A TW 94105009A TW I274079 B TWI274079 B TW I274079B
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recording medium
optical information
information recording
sputtering target
film
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TW200528569A (en
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Hideo Takami
Masataka Yahagi
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Nippon Mining Co
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/243Record 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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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/48Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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    • C04B35/50Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
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    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605Treating the starting powders individually or as mixtures
    • C04B35/62645Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62655Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/3407Cathode assembly for sputtering apparatus, e.g. Target
    • C23C14/3414Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/257Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/266Sputtering or spin-coating layers
    • CCHEMISTRY; METALLURGY
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    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225Yttrium oxide or oxide-forming salts thereof
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54Particle size related information
    • C04B2235/5418Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/257Record 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
    • G11B2007/25705Record 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
    • G11B2007/25706Record 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)
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252Record 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
    • G11B7/257Record 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
    • G11B2007/25705Record 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
    • G11B2007/25715Record 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 oxygen
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/60Efficient propulsion technologies, e.g. for aircraft

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  • Manufacturing Optical Record Carriers (AREA)
  • Physical Vapour Deposition (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Description

1274079 九、發明說明: 【發明所屬之技術領域】 本發明係關於光資訊記錄媒體用薄膜(特別是作為保護 膜)#及其製造方法以及可適用於該等之濺鍍靶。該薄膜之非 晶質性安^、成膜速度快、與記錄層之密合性以及機械特 性良好、且透過率高,而由於係以非硫化物系所構成,故 使鄰接之反射層、記錄層不易產生劣化。 【先前技術】 •以往,相變化型之光資訊記錄媒體之保護層一般主要 使用之ZnS Si〇2 ’其於光學特性、熱特性及與記錄層之密 合性等皆具有優異之特性,故廣泛地被使用。 但,今曰以藍光(Blue_ray)為代表之覆寫型DVD,強 烈要求增加覆寫次數、大容量化及高速記錄化。 光貧訊記錄媒體之覆寫次數會變少的原因之一,係因 保濩層ZnS-Si〇2之硫成分擴散到被該保護層ZnS_Si〇2夾 持之記錄層材内。 又,為了大容量化、高速記錄化,而將具有高反射率 及向熱傳導特性之純Ag或Ag合金使用於反射層材,但該 反射層亦以鄰接於保護層材ZnS-Si02之方式配置。 因此’此情形亦同樣地,會因硫成分從ZnS_Si〇2擴散, 而造成純Ag或Ag合金反射層材腐蝕劣化,成為引起光資 Λ s己錄媒體之反射率等特性劣化之要因。 作為防止該等硫成分擴散之對策,於反射層與保護層、 。己錄層與保護層之間設置以氮化物或碳化物為主成分之中 1274079 間層。但,隨積層數之增加,會發生產性降低及成本增加 的問題。 為解決上述問題’當務之急係將保護層材取代為不含 硫化物而僅含氧化物之材料,並找出具有與ZnS_si〇2同等 以上之光學特性及非晶質安定性之材料。 由於以上所述,氧化物系保護層#、透明導電材或光 學薄膜已被提出(參照專利文獻i〜3)。 然而’專利文@ 1〜3,有產生光學特性及非晶質性變 差區的問題。 曰本特開平01-317167號公報 專利文獻 專利文獻2:曰本特開2〇〇〇_9〇745號公報 專利文獻3 :曰本特開2〇〇3_166〇52號公報。 【發明内容】 “本發明係關於光資訊記錄媒體用薄膜(特別是作為保讃 腰)及其製造方法以及可適用於該等之賤鍍乾。該膜之非晶 質:安定、與記錄層之密合性以及機械特性優異、且透過 率南’並且係以非硫化物系所構成,故鄰接之反射層、記 :層不易發生劣化。藉此,可提昇光資訊記錄媒體特性以 及大幅改善生產性。 為解決上述課題,本發明人等經過努力研究結果發現, 之保護層材ZnS_Si〇2取代為下述不含硫化物而僅含 :曰^材料,可確保與ZnS_Sl〜具有同等之光學特性及 非…定性,並且可高速成臈 體之特性並提高生產性。 an己錄媒 1274079 基於以上發現,本發明提供: υ—種濺鍍靶,其特徵為,伤 田W ί 〇及γ 士鱼 氧化物所構成;2)如1)之濺鍍靶,其 2 3 ^ 10〜95mol%、殘餘為Hf0 · 3) Y2〇3之含重係 、隹一本人+ 丨)或2)之濺鍍靶,立中, 進一步含有 Zr02 10〜90 mol%。 ,、 又,本發明提供:4)如;I)〜3)中 對密度為90%以上;5)-種光資訊 ^巴,其相 其特徵為,使用上述υ〜4)中任⑥媒體及其製造方法, )τ彳一項之濺鍍靶至 膜,而形成光資訊記錄媒體構造 ^ 冲分;6) —蘇亦皆訊 記錄媒體及其製造方法,其特徵為 、 1之用上述Π〜5)任一 項之濺鍍靶至少作成薄膜,而形 一加ν 成先貝訊記錄媒體構造之 -^刀,且該薄膜係配置成鄰接於記錄層或反射声。 ,由上所述,可提供一種光資訊記錄媒體用薄臈(特別是 作為保護膜)及製造方法以及適用 ' M . 7 c 、用於邊4之濺鍍靶。將保護 ^材如彻2取代為不含硫化物而僅含氧化物之材料,藉 鄰接反射層及記錄層因硫而劣化,並且具備… 膜2 或以上之光予特性及非晶質安定性,而可高速成 版,且具有與記錄層之密合性 之優異特I生。 寸Μ“透過率面 又’由於使用本材料系,而具有能改善光資訊記錄媒 體之特性、並大幅提昇生產性等優異效果。 ’、 【實施方式】 本發明之濺鍍粗,係自励2及Υ2〇3之複合氧化物所 構成。特別是’將γ2〇3之含量控制為i0〜95m〇i%、殘餘 1274079 2此係因為若Υζ〇3之含量未滿lOmol%或超過 95m〇1%,則會有缺乏非晶質安定性的問題。 ,'IS'p、隹 J運—步添加Zr02 1〇〜9〇m〇l%。Zr〇2呈有熱
Zr〇2^„af 10〜90m〇1%為佳。此係由於,若Zf〇2未滿10mol%則無添 加效果,又若超過90mol%則會產生缺乏非晶f安定性的 問題,故進行添加時,以控制於上述範圍為佳。
該材料,其光 相變化型光記錄媒 成膜。 學特性及膜之非晶質性安定,而適用於 體之保護層材。且係使用高頻丨賤鐘進行 本材料,如上所述係非晶質性安定、且可提高透過率, 故適用於覆寫速度快之相變化記錄媒體或藍光雷射系相變 化記錄媒體用保護層材。 又,本發明之濺鍍靶,可將相對密度作成為90%以上。 密度之提昇,具有提高濺鍍膜均一度,且抑制濺鍍時顆粒 產生之效果。 使用如上述之濺鍍靶,可以供至少作成薄臈而形成光 貝讯圯錄媒體構造一部分之光資訊記錄媒體。並且,可以 衣作使用上述濺鍍靶至少作成薄膜而形成光資訊記錄媒體 構造一部分、且該薄膜係配置成鄰接於記錄層或反射層之 光資訊記錄媒體。 再者,使用本發明濺鍍靶所形成之薄膜,係形成光資 A Z錄媒體構造之一部分且配置成鄰接於記錄層或反射 層,但如上述,因無使用Zns,故不會有硫之污染,且硫 1274079 成刀不會擴政到配置成以保護層夾持之記錄層材中,因此 對於防止記錄層劣化有顯著的效果。 又,為了大容量化、高速記錄化,而於反射層材使用 具有咼反射率及高熱傳導特性之純Ag或Ag合金,但由於 硫成分亦不會擴散至鄰接之反射層,而同樣能防止反射層 材之腐蝕劣化、光資訊記錄媒體之反射率等特性變差,具 有優異的效果。 本毛明之,賤鍍靶,可將平均粒徑5μιη以下之各構成元 素之氧化物粉末,α常溫燒結或高溫加壓燒結來製造。藉 此,可製得相對密度90%以上之濺鍍靶。於此場合,較佳 為於燒結前將以氧化铪及氧化釔為主成分之氧化粉末,先 ;800 1400 C進行預燒結。將該預燒結後粉碎為以下 之粉末作為燒結用原料。 再者,藉由使用本發明濺鍍靶,可提昇生產性,並得 到品質優異之材料,而具有能以低成本安定地製造具有光 碟保護膜之光記錄媒體之顯著效果。 本發明之賤鍍乾之密唐M Sγ^ 山度徒幵,可減少空洞使結晶粒微 粒化、且能使乾之賤鍍面均勻平滑,故可減少滅鑛時產生 之顆粒及結球(nodule),更具有延長乾壽命之顯著效果, 而能減小品質之偏差、提昇量產性。 實施例 以下,依據實施例及比較例進行說明。又,本實施例 僅為-例’並未因此例而產生任何限制。亦即,本發明僅 為專射請範圍所限制者,而包含實施例以外的各種變形。 9 1274079 (實施例1〜6) 準備純度4N之5μηι以下之Y203粉及純度3N之平均 粒徑5μηι以下之Zr02粉及Hf02粉,調和成表1所示組成, 進行濕式混合、乾燥後,於11 〇〇°C進行預燒結。 然後,將該預燒結粉以濕式微粉碎至平均粒徑Ιμιη為 止後,添加結合劑,並以喷霧乾燥機進行造粒。將該造粒 粉以低溫進行加壓成形,並於氧氣環境氣氛、1 300°C進行 常溫燒結,在將此燒結材以機械精加工成輕形狀。該把之 ®成分組成係示於表1。 表1 例 組成 透過率 折射率 非晶質性 405nm(%) 405nm 實施例1 HfO2-20mol%Y2O3 98 2.1 1.1 實施例2 HfO2-40mol%Y2O3 96 2.1 1.0 實施例3 HfO2-60mol%Y2O3 97 2.0 1.1 實施例4 HfO2-80mol%Y2O3 97 1.9 1.0 實施例5 ZrO2-10mol% HfO2-20mol%Y2O3 97 2.1 1.1 實施例6 ZrO2-30mol% HfO2-40mol%Y2O3 97 2.0 1.0 比較例1 Hf02 95 2.1 1.9 比較例2 Zr02 97 2.1 2.3 比較例3 Y203 93 1.9 2.5 比較例4 Zr02-5mol% Y203 97 2.0 2.1 比較例5 Hf02-5mol% Y203 95 2.1 1.8 比較例6 ZnS-Si02 (20mol%) 80 2.3 1.1
非晶質性,係以施加退火(600°c、氬環境氣氛、30分 鐘)之成膜樣本之XRD測定之對20 = 20〜60G範圍中非成膜 10 1274079 玻璃基板之最大峰值強度比表示。 使用經上述精加工之6英寸φφ尺寸之靶,進行濺鍍。 濺鍍條件,係設為RF濺鍍、濺鍍能量1〇〇〇w、氬氣壓力 0.5Pa,以1500A為目標膜厚進行成膜。 將成膜樣本之透過率(波長4〇5nm)%、折射率(波長 405nm)、非晶質性(以施加退火處理(6〇〇Qc、氬環境氣氛、 30分鐘)之成膜樣本之XRD(Cu_Ka、4〇kv、3〇mA)測定之 對2扣20〜6〇0範圍内未成膜玻璃基板之最大峰強度比表示) 攀之測定結果等,示於表j。 由以上結果,實施例i〜6之濺鍍靶,其相對密度可達 9〇%以上,而可實施安定的RF濺鍍。 濺鍍膜之透過率達到96〜98%(405nm),折射率為 1且未見特定之結晶峰,而具有安定之非晶質性 (1.0〜1.1) 〇 、 又本實^例之革巴由於不使用ZnS,故不會發生因硫 籲之擴散及污染而導致光資訊記錄媒體之特性劣化。又,: 後述比車乂例相比,成膜樣本之透過率 安定性皆表示良好之值。 貝之 (比較例1〜6) 、如表1所示,準備與本發明條件不同之原料粉成分及 成比的材料’特別於比較例6中準備ZnS原料粉,並與 貝施例以同樣條件製作1,且使用該形成賤鑛膜。 。亥等之結果同樣示於表1。 脫離本發明組成比條件之比較例其成分與組成,例如 1274079 比較例i’由於完全不含Y氧化物,故得到非晶質性工9 之不良結果。 ^ 關於比較例2,同樣的由於不含γ氧化物,故得到非 晶質性2.3之不良結果。關於比較例3,由於僅單獨含有γ 氧化物,故同樣的得到非晶質性2.5之不良结果。 關於比較例4,於Zr氧化物與¥氧化物之組合中,由 於γ氧化物量較標準量少,故同樣的得到非晶質性21之 不良結果。 » 關於比較例5,雖係Hf氧化物與γ氧化物之組合,但 由於Υ氧化物量較標準量少,故同樣的得到非晶質性】8 之不良結果。 又,特別是比較例6中含有多量ZnS,故透過率為8〇% 之低值,且為有受硫污染之虞的材料。 使用本發明之濺鍍靶所形成之薄膜,形成光資訊記錄 媒體構造之一部分,由於不使用硫化鋅,故不會有硫成分 嚷I擴散到記錄層材,藉此而具不使記錄層劣化之顯著效果。 又’將具有南反射率、高熱傳導性之純Ag或Ag合金使用 於鄰接之反射層時,亦不會有硫成分朝該反射層擴散,而 同樣能防止反射層腐餘劣化而抑制特性劣化,具有優異的 效果。 再者,將非晶質性安定化、並賦予靶導電性,且使相 對密度達90%以上之高密度化,故可安定地進行rf濺鍍 成膜。並且,可具有使濺鍍之控制性變容易、而提昇濺鍍 效率之顯著效果。又,可減少成膜時濺鍍時產生顆粒(產塵) 12 1274079 或結球、減少品質偏差、提昇量產性,而具能以低成本、 安定地製造具有光碟保護膜之光記錄媒體,而具有顯著效 果。 【圖式簡單說明】 無 【主要元件符號說明】

Claims (1)

  1. 1274079 十、申請專利範園: 裡濺鍍靶 氧化物所構成 特徵為,係由咖2及γ2〇3之複合 2.如申請專利範圍第丨項之濺鍍 1 含!係10〜95m〇1%、殘餘係Hf〇2。 八^203之 2古如’請專利範圍第1或第、項之_乾,1中,進 一步含有Zr〇2 10〜9〇m〇1%。 /、中進 4 ·如申請專利範圍第】$榮
    度為90%以上。 ^ J、之濺鍍靶,其相對密 3 .如申請專利範圍第 以上 6. 一種光資訊記錄媒體,其特徵為,使用申請專利範 圍第1〜S 工TS v τ .月寻利摩巳 弟5項中任一項之減鑛革巴至少作成薄膜, 訊記錄媒體構造之一部分。 7珉尤貝 7. 一種光資訊記錄媒體之製造方法,其特徵為,使用 申請專利範圍f卜5項中任—項之濺鍍把至少作成薄膜, 而形成光資訊記錄媒體構造之一部分。 —8· —種光資訊記錄媒體,其特徵為,使用申請專利範 圍第1〜5項中任一項之濺鍍靶至少作成薄膜,而形成光資 汛記錄媒體構造之一部分,且該薄膜係配置成鄰接於記錄 層或反射層。 9_ 一種光資訊記錄媒體之製造方法,其特徵為,使用 申π專利範圍第1〜5項中任一項之濺鐘輕至少作成薄膜, 而形成光資訊記錄媒體構造之一部分,且該薄膜係配置成 14 1274079 鄰接於記錄層或反射層。 十一、圖式: 無0
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EP1719822A4 (en) 2010-10-06
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WO2005083150A9 (ja) 2006-02-23
KR20060114033A (ko) 2006-11-03
KR100805638B1 (ko) 2008-02-20
JPWO2005083150A1 (ja) 2008-01-17
CN1926258A (zh) 2007-03-07
WO2005083150A1 (ja) 2005-09-09
JP3909342B2 (ja) 2007-04-25
EP1719822A1 (en) 2006-11-08

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