JPS58203096A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS58203096A JPS58203096A JP57087504A JP8750482A JPS58203096A JP S58203096 A JPS58203096 A JP S58203096A JP 57087504 A JP57087504 A JP 57087504A JP 8750482 A JP8750482 A JP 8750482A JP S58203096 A JPS58203096 A JP S58203096A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- layer
- substrate
- recording medium
- film
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 abstract description 27
- 239000011241 protective layer Substances 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 4
- 239000010453 quartz Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000010408 film Substances 0.000 description 11
- 238000002834 transmittance Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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
- G11B7/241—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
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
-
- 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
- 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
-
- 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
- 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
- G11B2007/25706—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)
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Read Only Memory (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（１） 発明の技術分野
本発明なレーザ光？中いる元ディスクなどの情報全記録
し、再生するに用いる元情報記録媒体に関する。[Detailed Description of the Invention] (1) Technical Field of the Invention What is the laser beam of the present invention? The present invention relates to an original information recording medium used for recording and reproducing all the information contained in the original disc.
（２）技術の背景
元記録媒体の記録層に用・ハられる金属薄膜は低出力レ
ーザにより４込ひためＴｅ系金属のような酸化され易い
材料が用いられているっその酸化？防止するため保護層
が記録層Ｈに形成されるがレーザ光・／こよる記録特注
が１氏下したり、１７−ヂの時の感度が低下し、高吊刀
レープを必要とするため保護層の改善が要望さ几てｒる
。(2) Background of the technology The metal thin film used in the recording layer of the original recording medium is made of a material that is easily oxidized, such as a Te-based metal, and is oxidized by a low-power laser. In order to prevent this, a protective layer is formed on the recording layer H, but the special order for recording due to laser light and/or noise decreases by 1 degrees, and the sensitivity at 17-degrees decreases, requiring a high hanging knife, so protection is required. Improvement of the layer is required.
（３）従来茂１材と間頂点
従来、保護層としては記録金属層上に保護金属・１また
は有機樹脂層が中いら几ているが、いず庇も記録金属上
に固着しているため、レーザ光による情報書込時に記録
金属曽のピント形成が妨げられ結果として書込用のレー
デ出力を保護層がない場合と比べて高くする必要がある
欠点があったっ（４）発明の目的
不発明］は上記欠点を除くたつ、極＜薄・ハクロム４．
ｉ−中いることによつ記録感ｉｔ低下させることなく耐
湿性にすぐれ之保護・Ｊを提供することを目的とする。(3) Conventionally, as a protective layer, a protective metal layer or an organic resin layer is placed on the recording metal layer, but since both eaves are fixed on the recording metal, However, when writing information using a laser beam, the formation of a focus on the recording metal layer was hindered, and as a result, the laser output for writing had to be made higher than that without the protective layer. (4) The purpose of the invention was defeated. [Invention] is an ultra-thin hachrome 4. which eliminates the above-mentioned drawbacks.
The object of the present invention is to provide protection with excellent moisture resistance without deteriorating the recording sensitivity due to the presence of medium.
（５）発明り構成
そしてこＤ目的は不発明によ几ば４板とに形成さｎた記
録層シζンーザビームなどに二つ、清報を記録する配録
媒体；・でおいて、前記記録層上または基板と弓己録層
、′司にクロム膜層を役けｔことそ特黴とする元情報記
録媒体を提供することによって達成されろう
（６） 発明の夷抽例
以下２５：発明による実施例全図ｆにより詳脱す渠１図
、渠２図に記録媒淳の断・面図である。(5) Inventive structure and purpose is to provide a recording medium for recording information on two recording layers such as a laser beam formed on four plates; This can be achieved by providing an original information recording medium having a chromium film layer on the recording layer or between the substrate and the recording layer, which is a special mold.(6) Examples of the invention are as follows: FIG. 1 and FIG. 2 are cross-sectional views of the recording medium, which are shown in detail in FIG.
第１図は基板１上の記録金属層２の上べ保護層３で形成
し雀もつで、保護層としてクロム（・Ｌｒ）と５〜１１
０″Ａを用、Ａた例であるっ第２図はクロム保護１′＃
？基板と記録金属層との間にも設けた例であるっ
クロム嗅４は例えば水晶式の膜厚計などで平均膜厚とし
てモニタする。Figure 1 shows a recording metal layer 2 on a substrate 1, which is formed with a protective layer 3 on top.
0″A is used, and the example shown in Figure 2 shows chromium protection 1′#.
? The chrome film 4, which is also provided between the substrate and the recording metal layer, is monitored as an average film thickness using, for example, a quartz crystal film thickness meter.
詳細まだ明らかではないが、この碌く薄いクロム層の存
在により電気化学的性質で記録金属層の酸化が抑制され
耐湿性が著しく改善さｎでいると町。Although the details are not yet clear, it is believed that the presence of this thin chromium layer suppresses oxidation of the recording metal layer due to its electrochemical properties and significantly improves moisture resistance.
考えらｎるウ クロム層を１入庫として記録金属層（ｒ
ａ）’２の上部、及び基板（ＰＭ、＆ｉＡ ） トノ間
ＫＶ成した場合の湿度試験葡果を第３図に示す。試験条
件は温度６〕℃、相対湿度９０幅である。透過率比は初
期透過率で経過時間後の透過率を割った値で記録金属膜
面の酸化着に対応している。記録金属の六ル・ノ（ｒｅ
）上にクロムがない場合には、透過率比が直線的に櫂太
し透過率が増加して・ハくことを示している。すなわち
記録どソｒ形ＦＪｙ：、部こ周辺部との透過率差が小さ
くなろう一万少竜ｌ）クロムが存在する場合にぼ初期に
多少増加するがすぐに５Ａ和特性を示し安定であり、光
分な保ｄ効果金示している。It is considered that the recording metal layer (r
a) The upper part of '2 and the substrate (PM, &iA) The results of the humidity test when KV was formed between the tonneau are shown in Fig. 3. The test conditions were a temperature of 6]°C and a relative humidity of 90°C. The transmittance ratio is the value obtained by dividing the transmittance after an elapsed time by the initial transmittance, and corresponds to the oxidation deposition on the surface of the recording metal film. Recording Metal Rokuru No (re
) When there is no chromium on the surface, the transmittance ratio increases linearly, indicating that the transmittance increases. In other words, the difference in transmittance between the recorded area and the surrounding area will be small.l) When chromium is present, it will increase somewhat at the beginning, but it will soon show a 5A sum characteristic and become stable. Yes, it shows the light retention effect.
第４図はクロム４厚と透過率比およびフープによる誉込
みエネルギー金森護膜のクロム・層が無・ハ場合を基遣
として書込エネルギー比として示したものである。クロ
ム４厚がｉつクスでは蓄えエネルギーが３倍近くなるた
め膜厚の上限となるが、薄い万では５Ｘ１軍での透過率
の減少は更に薄い側での増７１０ ＞ｒ予想させてはい
るが禾だ少なく安定な耐湿性金示して１ハる。したがっ
て望でし、／−１クコム模厚として・１００入前後で５
つ、記録するに必要なレーザ元の傾さは保護膜が無い場
合こほぼ同一でよく酸化による記録会・Ａ膜の変化に対
して優れた安定性を示して込るっ
（７）発向の効果
本発明により耐湿性に対１〜ては厚・ハ医獲層は必要で
なく、極く少量に相当するクロム薄膜が存在することＫ
より記録金属膜の酸化金抑制することが可能でちり、そ
のため記録フープの出力を増す必要がなく低出力での記
録全可能とする効果を有する、FIG. 4 shows the thickness of chromium 4, the transmittance ratio, and the write energy ratio based on the case where the chromium layer of the Kanamori protective film is absent and the chromium layer is not used. When the thickness of chromium 4 is 1x, the stored energy is nearly tripled, which is the upper limit of the film thickness, but when the thickness is thinner, the decrease in transmittance in 5x1 is expected to increase further by 710 > r on the thinner side. However, it shows less stable moisture resistance. Therefore, it is desirable, /-1 Kucom model thickness, 5 around 100 pieces
First, the inclination of the laser beam necessary for recording is almost the same when there is no protective film, and it shows excellent stability against changes in the recording layer and A film due to oxidation (7). According to the present invention, a thick chromium layer is not necessary for moisture resistance, and a very small amount of chromium thin film is present.
It is possible to further suppress gold oxide dust in the recording metal film, so there is no need to increase the output of the recording hoop, and it has the effect of making full recording possible at low output.
第１図、第２図は元情報記録媒体の構成を示す断面図、
第３図は本発明による記録媒体の一時変化特性の毘較図
、第４１汀クロム膜厚に対する一時変化特性と書込エネ
ルギー比との関係を示す図である。
・図に２いて、ユは基板、２は記録金属層、３゜妥はク
ロム保護層を示している。
代理人 弁理士 松 岡 宏四部1 and 2 are cross-sectional views showing the structure of the original information recording medium,
FIG. 3 is a comparison diagram of the temporary change characteristics of the recording medium according to the present invention, and a diagram showing the relationship between the temporary change characteristics and the write energy ratio with respect to the chromium film thickness. - In the figure, 2 represents the substrate, 2 represents the recording metal layer, and 3° represents the chrome protective layer. Agent Patent Attorney Hiroshi Matsuoka
Claims (1)
り清報を記録する記録媒不において、前記記録層トまた
は基板と記録層・間・てクコム膜層を没：丁たこと′Ｌ
ｔ−４徴とする元情報記録媒体。 ２、前記、クロム膜層の厚さが５〜１）Ｏλの範、用で
あること？特徴とした荷許捕求範囲巣１項記或の元情報
記録媒体っ[Claims] 2. In a recording medium that records information on a recording layer formed on a substrate using a laser beam or the like, a Cucom film layer is deposited between the recording layer or the substrate and the recording layer: It's been a long time
Original information recording medium with t-4 characteristics. 2. Should the thickness of the chromium film layer be in the range of 5 to 1) Oλ? Characteristics of the cargo permit acquisition scope Item 1: Original information recording medium
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57087504A JPS58203096A (en) | 1982-05-24 | 1982-05-24 | Optical information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57087504A JPS58203096A (en) | 1982-05-24 | 1982-05-24 | Optical information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58203096A true JPS58203096A (en) | 1983-11-26 |
Family
ID=13916808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57087504A Pending JPS58203096A (en) | 1982-05-24 | 1982-05-24 | Optical information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58203096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154054A (en) * | 1984-08-23 | 1986-03-18 | Matsushita Electric Ind Co Ltd | Plate information recording medium |
| JPS62209741A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
| JPS62209742A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
| JPS62266746A (en) * | 1986-05-14 | 1987-11-19 | Teijin Ltd | Optical recording medium and its production |
-
1982
- 1982-05-24 JP JP57087504A patent/JPS58203096A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154054A (en) * | 1984-08-23 | 1986-03-18 | Matsushita Electric Ind Co Ltd | Plate information recording medium |
| JPH0580735B2 (en) * | 1984-08-23 | 1993-11-10 | Matsushita Electric Ind Co Ltd | |
| JPS62209741A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
| JPS62209742A (en) * | 1986-03-11 | 1987-09-14 | Matsushita Electric Ind Co Ltd | Optical information recording member |
| JPS62266746A (en) * | 1986-05-14 | 1987-11-19 | Teijin Ltd | Optical recording medium and its production |
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