JPS6213730B2 - - Google Patents
Info
- Publication number
- JPS6213730B2 JPS6213730B2 JP54016554A JP1655479A JPS6213730B2 JP S6213730 B2 JPS6213730 B2 JP S6213730B2 JP 54016554 A JP54016554 A JP 54016554A JP 1655479 A JP1655479 A JP 1655479A JP S6213730 B2 JPS6213730 B2 JP S6213730B2
- Authority
- JP
- Japan
- Prior art keywords
- recording
- information
- information recording
- thin film
- polymer
- 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.)
- Expired
Links
- 239000010409 thin film Substances 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- -1 sulfur nitride Chemical class 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 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
- G11B7/244—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 organic materials only
- G11B7/245—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 organic materials only containing a polymeric component
-
- 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
-
- 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
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/266—Sputtering or spin-coating 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
- G11B7/242—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
- G11B2007/24318—Non-metallic elements
- G11B2007/24322—Nitrogen
-
- 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
- G11B2007/24318—Non-metallic elements
- G11B2007/24324—Sulfur
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
- G11B7/00453—Recording involving spectral or photochemical hole burning
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
【発明の詳細な説明】
本発明は、ビデオデイスク、マスデータストレ
ージ用の記録媒体等に用いて好適な情報記録媒体
に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information recording medium suitable for use as a video disc, a recording medium for mass data storage, or the like.
ビデオデイスク等の情報記録媒体としては種々
のものが提案されている。例えば記録媒体の表面
に記録情報に応じた凹凸パターンを形成し、再生
にあたつては、例えばレーザー光を照射し、この
凹凸による光干渉効果によつてその情報の読み出
しを行うようにしたものが提案されている。この
場合、この記録情報に応じた凹凸パターンの形成
は、フオトレジストを用いたフオトエツチング等
を適用するなどの方法が採られるが、この場合情
報の記録と同時にその読み出しを行つて記録状態
を監視するようないわゆる記録モニタを行うこと
ができない。又、他のこの種情報記録媒体とし
て、例えばインジウム、ビスマス、テルルによる
金属薄膜が設けられ、この金属薄膜に記録情報に
よつて変調した例えばレーザ光を照射してこの金
属の蒸発、融解等による透孔を形成して、この部
分と他部との光反射率の相違によつて情報記録を
行い且つこれを光学的にその光反射率の相違を読
み出してその再生を行うようにするものがある。
この場合、記録と同時にその記録部分を光学的に
読み出して記録モニタすることができるという利
点を有するものの、従来のこの種情報記録媒体に
対する記録に要するエネルギー、すなわち媒体の
金属薄膜に穿孔を形成するためのエネルギーとし
ては比較的大きなエネルギーを必要とするので、
記録のため例えばレーザー光として大きなエネル
ギーのものを用いる必要があつてその記録を簡便
に行うことができないとか、記録の高密度化を十
分図り得ないなどの欠点がある。 Various information recording media such as video discs have been proposed. For example, a concavo-convex pattern is formed on the surface of a recording medium in accordance with the recorded information, and during reproduction, for example, a laser beam is irradiated and the information is read out by the optical interference effect caused by the concavo-convexities. is proposed. In this case, a method such as applying photoetching using a photoresist is used to form a concavo-convex pattern according to the recorded information, but in this case, the recording state is monitored by reading out the information at the same time it is being recorded. It is not possible to perform so-called recording monitoring. In addition, as other information recording media of this type, a metal thin film made of, for example, indium, bismuth, or tellurium is provided, and this metal thin film is irradiated with, for example, laser light modulated according to recorded information, and the metal is evaporated, melted, etc. A device that forms a through hole, records information based on the difference in light reflectance between this part and other parts, and optically reads out the difference in light reflectance and reproduces the information. be.
In this case, although it has the advantage of being able to optically read out the recorded portion and monitor recording at the same time as recording, the energy required for recording on conventional information recording media of this type, that is, the formation of perforations in the metal thin film of the medium, is Since it requires a relatively large amount of energy,
For recording, it is necessary to use a high-energy laser beam, for example, and the recording cannot be easily performed, and the recording density cannot be sufficiently increased.
本発明はこのような欠点を解消することができ
る新規な情報記録媒体を提供するものである。 The present invention provides a new information recording medium that can eliminate these drawbacks.
すなわち、本発明においては、窒化硫黄
（SN）Xポリマーよりなる薄膜を用い、これに記録
情報を光反射率変化によるパターンとして記録す
る。 That is, in the present invention, a thin film made of sulfur nitride (SN) x polymer is used, and recorded information is recorded thereon as a pattern based on a change in light reflectance.
窒化硫黄（SN）Xポリマーは、それ自体黄金色
を呈し、高い反射率を有し、真空中で150℃程度
の加熱によつて蒸着が可能で容易に薄膜の形成が
でき、又、大気中で350℃程度での比較的低い温
度で熱分解して昇華する。 Sulfur nitride (SN) It thermally decomposes and sublimates at a relatively low temperature of around 350℃.
本発明においては、この性質を利用して記録モ
ニターが可能で、しかも低エネルギーでの記録を
可能にしたことによつて記録手段の小型簡易化、
取扱いの簡便化、更には高密度の記録を可能にし
た情報記録媒体を提供するものである。 In the present invention, by utilizing this property, it is possible to monitor recording, and by making recording possible with low energy, the recording means can be made smaller and simpler.
The present invention provides an information recording medium that is easy to handle and enables high-density recording.
本発明の一例を第１図を参照して説明する。図
中１は本発明による情報記録媒体を全体として示
す本発明においては、ベース２上、配向された
（SN）Xポリマーより成る情報記録薄膜３を被着す
る。 An example of the present invention will be explained with reference to FIG. In the figure, 1 shows an information recording medium according to the present invention as a whole. In the present invention, an information recording thin film 3 made of an oriented (SN) X polymer is deposited on a base 2.
ベース２は、例えば情報記録の読み出し態様等
に応じて透明、あるいは不透明の各種ガラス、合
成樹脂等によつて形成された円形、四角形等の適
当形状のシート状体、あるいは板体より成る。 The base 2 is made of a sheet or plate of an appropriate shape, such as a circle or square, made of transparent or opaque glass, synthetic resin, etc., depending on the reading mode of information recording, for example.
（SN）Xポリマーより成る情報記録薄膜３は、
そのポリマーの鎖方向が揃えられて、すなわち配
向されて構成される。このように配向された
（SN）Xポリマー薄膜３を得るには、予めベース２
の表面に周知の方法による配向処理を施して、こ
の配向処理の施されたベース２上に（SN）Xポリ
マーを蒸着することによつて形成する。この配向
処理の一例としては、例えば合成樹脂より成るベ
ース２の表面を棉布等によつて配向方向に沿つて
ラビング、すなわちこすることによつて行うこと
ができる。そして、この配向処理の施されたベー
ス２上に、（SN）Xポリマーを蒸着源として、これ
を150℃±10℃に加熱して（SN）Xポリマーの真空
蒸着を行う。このようにすると、上述の配向処理
の方向にポリマーの鎖が並んだｂ軸を有する
（SN）Xポリマー薄膜３が形成される。 (SN) The information recording thin film 3 made of X polymer is
The polymer chain direction is aligned, that is, oriented. To obtain the (SN) X polymer thin film 3 oriented in this way, the base 2
The surface of the base 2 is subjected to an orientation treatment using a well-known method, and the ( SN ) As an example of this orientation treatment, it can be carried out by rubbing the surface of the base 2 made of, for example, a synthetic resin along the orientation direction with cotton cloth or the like. Then, on the base 2 which has been subjected to the orientation treatment, the ( SN ) In this way, an ( SN )
この（SN）Xポリマーよりなる情報記録薄膜３
はその厚さを十分な光反射率を得ることができる
程度に厚く、しかも亀裂等が生じない程度に薄い
例えば600Å〜20000Å、望ましくは1000Å〜4000
Åに形成し得る。 Information recording thin film 3 made of this (SN) X polymer
The thickness should be thick enough to obtain sufficient light reflectance, and thin enough to prevent cracks, for example, from 600 Å to 20,000 Å, preferably from 1000 Å to 4,000 Å.
can be formed in Å.
情報記録薄膜３上には図示しないが必要に応じ
て透明の保護被膜を被着形成し得る。 Although not shown, a transparent protective film may be formed on the information recording thin film 3 if necessary.
上述の本発明による情報記録媒体１における
（SN）Xポリマーによる情報記録薄膜３は、大気中
で350℃程度の温度で熱分解するものであり40ｍ
Ｊ／cm2程度以上のエネルギであれば、その記録が
可能であることが確められた。 The information recording thin film 3 made of the ( SN )
It has been confirmed that recording is possible as long as the energy is approximately J/cm 2 or higher.
そして、この（SN）Xポリマーの特徴は、一次
元金属性が極めて強いことである。そして、この
ポリマーの鎖が並んでいる方向であるｂ軸に平行
な電気ベクトルの偏光に対し、高い反射率と、大
きな吸収を示す。第２図は、この配向された
（SN）Xポリマーの光学的特性を示すもので、第２
図中、曲線１１は、（SN）Xポリマーのｂ軸に平行
な電気ベクトルの偏光に対する反射率Ｒ‖を示
し、曲線１２は同様方向の電気ベクトルの偏光に
対する吸収係数Ｅ‖bを示す。また、曲線１３は、
ｂ軸に直交する電気ベクトルの偏光に対する吸収
係数Ｅ⊥ｂを示す。これらの吸収係数は、入射光
エネルギーをIo、透過光エネルギーをＩとしたと
きの１cm当りの吸光度で吸光度logＩｏ／Ｉを１cm当り
に換算した値である。この第２図から明らかなよ
うに配向された（SN）Xポリマーは、そのｂ軸に
平行な電気ベクトルの偏光に対し、或る波長範囲
で高い反射率を示し、更に、反射されずに
（SN）Xポリマー中に入り込んだ同様の偏光に対し
ては、高い吸収を示す。 This (SN) X polymer is characterized by extremely strong one-dimensional metallicity. It exhibits high reflectance and large absorption for polarized light with an electric vector parallel to the b-axis, which is the direction in which the polymer chains are lined up. Figure 2 shows the optical properties of this oriented ( SN )
In the figure, curve 11 shows the reflectance R|| for polarized light of an electric vector parallel to the b-axis of the (SN) X polymer, and curve 12 shows the absorption coefficient E| b for polarized light of an electric vector in the same direction. Moreover, the curve 13 is
It shows the absorption coefficient E⊥b for polarized light of an electric vector perpendicular to the b-axis. These absorption coefficients are values obtained by converting the absorbance logIo/I to per cm, where Io is the incident light energy and I is the transmitted light energy. As is clear from Fig. 2, the oriented ( SN ) SN) X shows high absorption for similarly polarized light that enters the polymer.
尚、この（SN）Xポリマーによる情報記録薄膜
３は冒頭にも述べたように、黄金色を呈してい
る。 As mentioned at the beginning, the information recording thin film 3 made of the (SN) X polymer has a golden color.
又、この（SN）Xポリマーを得る方法は、例え
ばアーノルド氏法によりS4N4を合成し、このよ
うにして得たS4N4を、250℃前後に熱した銀綿中
を真空中で通過させることによつて容易に得るこ
とができる。 In addition , the method for obtaining this ( SN ) can be easily obtained by passing it through.
次に上述の本発明による情報記録媒体１に対し
ての情報記録を行う方法の一例を説明する。 Next, an example of a method for recording information on the information recording medium 1 according to the present invention described above will be explained.
この場合、この書き込みは、（SN）Xポリマー薄
膜３を書き込み情報に応じたパターンをもつて局
部的に昇華させて穿孔を形成することによつて行
う。この局部的昇華を効率よく行うには、（SN）X
ポリマーに対し、高い吸収係数率を示す光源、す
なわち、第２図中曲線１２に示すように、（SN）X
ポリマーのｂ軸と平行な電気ベクトルを有する偏
光で、しかもその波長が吸収係数のピーク近傍の
波長の光照射によつて行うことができる。第３図
は、その記録方法の一例を示すもので、この場
合、書き込み光源４として8000Å〜9000Å程度の
波長の偏光を得ることができる半導体レーザー、
例えばGaAlAs系半導体レーザーを用いる。そし
て、この半導体レーザー４を、記録しようとする
記録情報に応じて制御してこのレーザー４からの
レーザー光８を強度変調する。５は、このレーザ
ー光８の記録情報に応じた強度変調を行うための
制御装置を示す。レーザー４から、強度変調され
てとり出されたレーザー光８は、必要に応じてミ
ラー６を介して本発明による情報記録媒体１の情
報記録膜３へと向わしめ、集束レンズ７を通過さ
せることによつてこのレーザー光８が情報記録媒
体１の（SN）Xポリマーの情報記録膜３上にその
ｂ軸方向とレーザー光８の電気ベクトル方向とが
平行関係を保持した状態でフオーカスされたスポ
ツトを形成するようにし、この状態を保持してス
ポツトと媒体１とを相対的に移動させて、スポツ
トを媒体１上に走査するようにし、各位置で強度
変調されたレーザー光８によつて（SN）Xポリマ
ー膜３の局部的昇華による記録パターンを形成す
る。 In this case, the writing is performed by locally sublimating the (SN) X polymer thin film 3 in a pattern corresponding to the written information to form perforations. To efficiently perform this local sublimation, ( SN )
( SN )
This can be achieved by irradiating light with polarized light having an electric vector parallel to the b-axis of the polymer, and whose wavelength is near the peak of the absorption coefficient. FIG. 3 shows an example of the recording method. In this case, the writing light source 4 is a semiconductor laser that can obtain polarized light with a wavelength of about 8000 Å to 9000 Å.
For example, a GaAlAs semiconductor laser is used. Then, this semiconductor laser 4 is controlled in accordance with the recording information to be recorded, and the laser beam 8 from this laser 4 is intensity-modulated. Reference numeral 5 indicates a control device for performing intensity modulation of the laser beam 8 according to recorded information. The intensity-modulated laser beam 8 extracted from the laser 4 is directed to the information recording film 3 of the information recording medium 1 according to the present invention via a mirror 6 as necessary, and is passed through a focusing lens 7. As a result, this laser beam 8 was focused on the information recording film 3 of the ( SN ) A spot is formed, and while this state is maintained, the spot and the medium 1 are moved relative to each other to scan the spot on the medium 1, and the laser beam 8 whose intensity is modulated at each position is used to scan the spot. (SN) A recording pattern is formed by local sublimation of the X polymer film 3.
このようにして情報記録信号が記録された情報
記録媒体１よりその情報の読み出しを行なうに
は、（SN）Xポリマー薄膜３に対し、高い反射率を
示す光、すなわち、第２図中曲線１１で高い反射
率を示す波長の偏光を薄膜３に照射し、この薄膜
３よりの反射光、或いは透過光によつて読み出
す。したがつて、この読み出し（再生）に際して
も、（SN）Xポリマー薄膜３のｂ軸に対し、平行な
電気ベクトルを有する偏光でしかも曲線１１のピ
ーク近傍の波長範囲の光、例えばGaAlAs系のよ
うな半導体レーザーによる無変調のレーザー光、
あるいは、He−Neレーザーのようなガスレーザ
ー管よりのレーザー光を偏光板を介して得た同様
に無変調のレーザー光を用いることによつて読み
出すことが望ましい。 In order to read the information from the information recording medium 1 on which the information recording signal is recorded in this way, the ( SN ) The thin film 3 is irradiated with polarized light having a wavelength that exhibits a high reflectance, and the light reflected from or transmitted through the thin film 3 is read out. Therefore, during this readout (reproduction), polarized light having an electric vector parallel to the b axis of the ( SN ) Unmodulated laser light from a semiconductor laser,
Alternatively, it is desirable to read out a laser beam from a gas laser tube such as a He--Ne laser by using a similarly unmodulated laser beam obtained through a polarizing plate.
この読み出しにおいて、例えば媒体１として、
表面が鏡面に仕上げられたガラスベース２上に、
上述の（SN）Xポリマー薄膜３を形成した場合、
情報記録を有する部分と有さない部分とでは、そ
の反射率が約10倍程度に達するのでその再生信号
レベルは十分高く、しかも高Ｓ／Ｎ比をもつて行
うことができ、これに伴つて高密度記録化が可能
となる。 In this reading, for example, as medium 1,
On the glass base 2 with a mirror-finished surface,
When the above-mentioned (SN) X polymer thin film 3 is formed,
Since the reflectivity of the part with information recording and the part without it reaches approximately 10 times, the level of the reproduced signal is sufficiently high, and it is possible to perform the reproduction with a high S/N ratio. High-density recording becomes possible.
尚、媒体１に対する情報記録に際して、この記
録と共に、この記録状態の例えば良否を確認する
ための記録モニターを行うことができる。このモ
ニターは、前述の記録のための光８と干渉が生ず
ることのないように、この光８の波長とは異る波
長を有する無変調の光で、しかも体述の読み出し
方法で説明したように高い反射率を示す例えば
6300Åの波長のHe−Neレーザー管からのレーザ
ー光を、媒体１上における記録のための光８の走
査に追従して走査させ、これの反射、若しくは透
過光を読み出すことによつて行い得る。 Incidentally, when recording information on the medium 1, it is possible to perform recording monitoring in order to check whether the recording state is good or bad, along with this recording. This monitor uses unmodulated light having a wavelength different from that of light 8 to avoid interference with the recording light 8 mentioned above, and also as explained in the reading method described above. For example,
This can be done by scanning a laser beam from a He--Ne laser tube with a wavelength of 6300 Å, following the scanning of the recording light 8 on the medium 1, and reading out the reflected or transmitted light.
上述したように本発明による情報記録媒体１に
よれば、その情報記録薄膜３を窒化硫黄（SN）X
ポリマーによつて形成したことによつてその記録
を低エネルギで行なうことができるので、記録装
置が小型簡易化され、又その取扱いが簡便とな
り、例えばビデオデイスク等に用いて末端使用者
においての情報記録が可能となる。 As described above, according to the information recording medium 1 according to the present invention, the information recording thin film 3 is made of sulfur nitride (SN)
Since it is made of polymer, it can be recorded with low energy, so the recording device can be made smaller and easier to handle, and it can be used for example in video discs, etc. to provide information to the end user. Recording becomes possible.
又この情報記録は、フオトエツチング等の湿式
法等によらず、単に例えばレーザー光の媒体１と
の相対的走査によつて行なうことができるので、
記録と共に順次同時に再生を行なつて記録モニタ
を行なうことができ、実用に供してその便益は大
である。 Furthermore, this information recording can be performed simply by scanning the laser beam relative to the medium 1, without using a wet method such as photo etching.
Recording can be monitored by sequentially and simultaneously reproducing as well as recording, which is of great practical benefit.
又、窒化硫黄（SN）Xポリマーは、これがある
程度の電気伝導性を有するので使用時あるいは取
扱い時等において情報記録薄膜に静電気の帯電が
生じ塵埃等が付着するような欠点も回避できる利
点がある。 In addition, sulfur nitride (SN) X polymer has a certain degree of electrical conductivity, so it has the advantage of avoiding the disadvantages of static electricity charging and dust adhesion to the information recording thin film during use or handling. .
尚、上述した例では、（SN）Xポリマーの光学的
特性を利用して、その情報の記録、読み出しを効
率良く行うために半導体レーザー、或いはレーザ
ー管を用いた場合であるが、或る場合は、他の各
種ランプ等による光等によることもできる。 In the above example, a semiconductor laser or a laser tube is used to efficiently record and read information by utilizing the optical properties of (SN) X polymer. It is also possible to use light from various other lamps.
第１図は本発明による情報記録媒体の一例の断
面図、第２図は本発明の説明に供する（SN）Xポ
リマーの特性図、第３図は情報記録方法の一例を
示す構成図である。
１は本発明による情報記録媒体、２はそのベー
ス、３は情報記録薄膜を示す。
FIG. 1 is a sectional view of an example of an information recording medium according to the present invention, FIG . 2 is a characteristic diagram of (SN) . 1 is an information recording medium according to the present invention, 2 is its base, and 3 is an information recording thin film.
Claims (1)
薄膜を有し、記録情報を光反射率変化によるパタ
ーンとして記録するようにしたことを特徴とする
情報記録媒体。1. An information recording medium having an information recording thin film made of sulfur nitride ( SN )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1655479A JPS55108944A (en) | 1979-02-15 | 1979-02-15 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1655479A JPS55108944A (en) | 1979-02-15 | 1979-02-15 | Information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55108944A JPS55108944A (en) | 1980-08-21 |
| JPS6213730B2 true JPS6213730B2 (en) | 1987-03-28 |
Family
ID=11919489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1655479A Granted JPS55108944A (en) | 1979-02-15 | 1979-02-15 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55108944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11565676B2 (en) | 2018-05-30 | 2023-01-31 | Hl Mando Corporation | Electric brake system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58155543A (en) * | 1982-03-10 | 1983-09-16 | Toshiba Corp | Information recording memory |
| JPS58158097A (en) * | 1982-03-15 | 1983-09-20 | Toshiba Corp | Information recording memory |
| US8133554B2 (en) | 2004-05-06 | 2012-03-13 | Micron Technology, Inc. | Methods for depositing material onto microfeature workpieces in reaction chambers and systems for depositing materials onto microfeature workpieces |
| US7699932B2 (en) | 2004-06-02 | 2010-04-20 | Micron Technology, Inc. | Reactors, systems and methods for depositing thin films onto microfeature workpieces |
-
1979
- 1979-02-15 JP JP1655479A patent/JPS55108944A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11565676B2 (en) | 2018-05-30 | 2023-01-31 | Hl Mando Corporation | Electric brake system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55108944A (en) | 1980-08-21 |
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