JPH02294952A - Optical memory medium - Google Patents
Optical memory mediumInfo
- Publication number
- JPH02294952A JPH02294952A JP1115412A JP11541289A JPH02294952A JP H02294952 A JPH02294952 A JP H02294952A JP 1115412 A JP1115412 A JP 1115412A JP 11541289 A JP11541289 A JP 11541289A JP H02294952 A JPH02294952 A JP H02294952A
- Authority
- JP
- Japan
- Prior art keywords
- film
- atomic
- gold
- protective film
- substrate
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims description 14
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052737 gold Inorganic materials 0.000 claims abstract description 12
- 239000010931 gold Substances 0.000 claims abstract description 12
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 7
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 5
- 239000004925 Acrylic resin Substances 0.000 abstract description 2
- 229920000178 Acrylic resin Polymers 0.000 abstract description 2
- 238000007733 ion plating Methods 0.000 abstract description 2
- 150000004767 nitrides Chemical class 0.000 abstract description 2
- 239000005341 toughened glass Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 238000001755 magnetron sputter deposition Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- -1 etc. Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業」二の利用分野）
本発明は音９機器やコンピュータの周辺機器などに用い
られる光記憶体に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Application in Industry) The present invention relates to an optical storage medium used in audio equipment, computer peripheral equipment, and the like.
（従来の技術）
近年、光記憶体の一つであるコンパクトディスク（以下
、ＣＤと略す。）が広く普及している。このＣＤの応用
技術として、ＣＤにコンピュータデータを記録したＣＤ
−ＲＯＭが普及し始めており、これらの記憶体に対して
従来にも増して、高温・高湿下での保存性の高いものが
望まれている。(Prior Art) In recent years, compact discs (hereinafter abbreviated as CDs), which are one type of optical storage medium, have become widely popular. As an applied technology of this CD, a CD in which computer data is recorded on a CD.
- ROMs are beginning to become popular, and it is desired that these storage media have higher storage stability under high temperature and high humidity conditions than ever before.
（発明が解決しようとする課題）
従来、光記憶体は、ガラスやポリカーボネ−１・樹脂等
からなる下地体上に、アルミニウムや金等からなる反射
膜が形成され、その反射膜上に樹脂等の保護膜が被覆さ
れた物で構成されている。このような従来の光記憶体を
高温・高湿の環境下においた場合、反射膜材料がアルミ
ニウムの場合は腐食が生じ、また金の場合は下地体から
剥離する。(Problems to be Solved by the Invention) Conventionally, optical storage bodies have a reflective film made of aluminum, gold, etc. formed on a base material made of glass, polycarbonate, resin, etc., and a resin, etc. It consists of a material coated with a protective film. When such a conventional optical storage body is placed in a high temperature and high humidity environment, if the reflective film material is aluminum, it will corrode, and if it is gold, it will peel off from the base.
反射膜がこのように変化すると、信号読み取りの指標と
されるエラーレーＩ・が増加し、」二記に記したニーズ
に適応できないどう問題があった。When the reflective film changes in this way, the error rate I, which is used as an index for signal reading, increases, causing the problem that it cannot meet the needs described in Section 2.
本発明は以」二述べたような従来の事情に対処してなさ
れたもので、金の反射膜の優れた耐腐食性を保つと同時
に金の反射膜の下地体への密着性を向上させることによ
り、耐候性を高めた光記憶体を提供することを目的とす
る。The present invention has been made in response to the conventional circumstances as described below, and it maintains the excellent corrosion resistance of the gold reflective film and at the same time improves the adhesion of the gold reflective film to the substrate. The purpose of this invention is to provide an optical storage medium with improved weather resistance.
（課題を解決するだめの手段）
本発明は、下地体と、前記下地体上に被覆された金と少
なくともゲルマニウムを０原子％を越えて５０原子％以
内含む反射膜とからなることを特徴とずる光記録体であ
る。ゲルマニ・クムの含有量が限定されるのは、この範
囲内においてＣＤの規格である７０％の反則率が確保さ
れるためである。(Means for Solving the Problems) The present invention is characterized by comprising a base body and a reflective film coated on the base body and containing gold and at least germanium in an amount exceeding 0 atomic % and not more than 50 atomic %. It is a reflective recording medium. The reason why the germani cum content is limited is to ensure a 70% foul rate, which is the CD standard, within this range.
本発明の光記憶体は、例えば次のように作製される。The optical memory of the present invention is produced, for example, as follows.
まず、この下地体としては、例えばｉｊ！ｉｉ化カラス
、強化ガラスに酸化珪素や酸化チタンや窒化珪素などを
被覆したもの、石英ガラス、ゾルゲル膜被覆カラス、ポ
リオレフィン｛’ＨＩ脂、アクリル樹脂、弗素樹脂、ポ
リカーボネー１・ＩＡＩ脂などが用いられる。First of all, as this base body, for example, ij! II-cured glass, tempered glass coated with silicon oxide, titanium oxide, silicon nitride, etc., quartz glass, sol-gel film coated glass, polyolefin {'HI resin, acrylic resin, fluororesin, polycarbonate 1/IAI resin, etc. are used. It will be done.
次に、上記下地体の上に、反射膜として、金と少なくと
もゲルマニウムを０原子％を越えて５ｏ原子％以内含む
材判．を高周波マグネトロンスパソタ法、イオンプレー
ティング法、クラスターイオンビーム法、プラズマＣＶ
Ｄ法、真空蒸着法等により１０〜５００ｎｍの膜厚で被
覆ずる。Next, on the base body, a material containing gold and at least germanium in an amount of more than 0 atomic % and less than 50 atomic % is applied as a reflective film. High frequency magnetron supersota method, ion plating method, cluster ion beam method, plasma CV
The film is coated with a film thickness of 10 to 500 nm using the D method, vacuum evaporation method, or the like.
さらに、必要に応じて上記反則膜上に各種酸化物や窒化
物や４’ＭＪ脂等がらなる保護膜を形成することにより
、本発明の光記憶体が得られる。Furthermore, the optical memory of the present invention can be obtained by forming a protective film made of various oxides, nitrides, 4'MJ resins, etc. on the above-mentioned anti-fouling film, if necessary.
（作用）
金と少なくともゲルマニウムをＯ原子％を越えて５０原
子％以内含む反射膜は、下地体及び保護膜に対して強い
密着力を有すると共に、耐腐食性にも優れている。この
ため、下地体から反射膜が剥離することや反則膜から保
護膜が剥離することがなく、高い信頼性を有する光記憶
体が得られる。(Function) A reflective film containing gold and at least germanium in an amount exceeding O atomic % and less than 50 atomic % has strong adhesion to the base and the protective film, and is also excellent in corrosion resistance. Therefore, the reflective film does not peel off from the base body, and the protective film does not peel off from the fouling film, so that an optical storage medium with high reliability can be obtained.
（実施例） 以下に表及び図面を参照して本発明を詳細に説明する。(Example) The present invention will be explained in detail below with reference to tables and drawings.
＄１表に示す材質の下地体上に、第１表に示ず組成の反
射膜をスパノタリング法によりそれぞれ第１表に示す膜
厚で形成した。次いで、その反則膜上に第１表に示ず利
質の保護膜を形成して５個の光記憶体を作製した。$1 Reflective films having compositions not shown in Table 1 were formed on substrates made of materials shown in Table 1 by a spanotaring method, respectively, to film thicknesses shown in Table 1. Next, a protective film of a quality not shown in Table 1 was formed on the fouling film to produce five optical storage bodies.
第１図は以上のようにして作製した光記憶体の一実施例
を示す部分断面図である。図中、ｌは下地体、２は反ｎ
・］膜、３は保護膜である。FIG. 1 is a partial cross-sectional view showing an example of the optical storage body manufactured as described above. In the figure, l is the base body, 2 is anti-n
・] Membrane 3 is a protective membrane.
次に、これらの試料、アルミニウムを反射膜とする従来
品Ａ、金を反射膜とする従来品Ｂについて、温度８０°
Ｃ、相月湿度９０％の剛環境性試験を１ケ月間行い、信
号の良否の指標となるエラーレ−１・を測定した。その
結果を第２表に示す。Next, these samples, conventional product A with aluminum as the reflective film and conventional product B with gold as the reflective film, were heated at a temperature of 80°.
C. Rigid environment test at 90% humidity was conducted for one month, and error rate 1. was measured as an indicator of signal quality. The results are shown in Table 2.
第２表に示すように、初期においてはいずれの試料もエ
ラーレ−１・は５Ｘ１０−５であるが、１ケ月間の耐環
境性試験後、本発明の試料のエラーレーｌ・は多少の劣
化がみれるものの従来品とは比較にならないほど良好で
あった。As shown in Table 2, the error rate of all samples is 5X10-5 at the initial stage, but after the environmental resistance test for one month, the error rate of the sample of the present invention shows some deterioration. However, it was incomparably better than conventional products.
第ｌ表
第２表
（発明の効果）
以」二、詳細に述べたように、本発明の光記憶体は、金
に少なくともゲルマニウムを０原子％を越えて５０原子
％以内含む材相．を反射膜として形成するによって、そ
の反射膜と下地体との密着性及びその反射膜と保護膜と
の密着性が高められると共に、耐腐食性にも優れており
、従来品よりはるかに高い信頼性を有するものである。Table 1 Table 2 (Effects of the Invention) As described in detail below, the optical memory of the present invention has a material phase containing at least more than 0 atomic % and less than 50 atomic % of germanium in gold. By forming it as a reflective film, the adhesion between the reflective film and the base body and the adhesion between the reflective film and the protective film is improved, and it also has excellent corrosion resistance, making it much more reliable than conventional products. It is something that has a nature.
第１図は本発明の光記憶体の一実施例を示す部分１析面
図である。
１・・・下地体、
２・・・反射膜、
３・・・保護膜。FIG. 1 is a partial sectional view showing an embodiment of the optical storage body of the present invention. 1... Base body, 2... Reflective film, 3... Protective film.
Claims (1)
ルマニウムを０原子％を越えて５０原子％以内含む反射
膜とからなることを特徴とする光記録体。An optical recording medium comprising a base body and a reflective film coated on the base body and containing gold and at least germanium in an amount of more than 0 atom % and less than 50 atom %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1115412A JP2893712B2 (en) | 1989-05-08 | 1989-05-08 | Optical memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1115412A JP2893712B2 (en) | 1989-05-08 | 1989-05-08 | Optical memory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02294952A true JPH02294952A (en) | 1990-12-05 |
| JP2893712B2 JP2893712B2 (en) | 1999-05-24 |
Family
ID=14661929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1115412A Expired - Lifetime JP2893712B2 (en) | 1989-05-08 | 1989-05-08 | Optical memory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2893712B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1956598A1 (en) * | 2000-07-21 | 2008-08-13 | Target Technology Company, LLC. | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164038A (en) * | 1982-03-24 | 1983-09-28 | Fujitsu Ltd | Recording medium for optical disk |
| JPS59218644A (en) * | 1983-05-27 | 1984-12-08 | Fujitsu Ltd | Optical recording medium |
-
1989
- 1989-05-08 JP JP1115412A patent/JP2893712B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58164038A (en) * | 1982-03-24 | 1983-09-28 | Fujitsu Ltd | Recording medium for optical disk |
| JPS59218644A (en) * | 1983-05-27 | 1984-12-08 | Fujitsu Ltd | Optical recording medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1956598A1 (en) * | 2000-07-21 | 2008-08-13 | Target Technology Company, LLC. | Metal alloys for the reflective or the semi-reflective layer of an optical storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2893712B2 (en) | 1999-05-24 |
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