45 584 3 A7 B7 經濟部中央標準局貝工消費合作社印製 五、發明説明（I ) 發明範圍 本發明係關於-種光學記錄媒體，以具有一預定波長之 輻射光束來寫入及讀取資料，包含-記錄層，#受到-輻 射光束知、射時孩記綠層會於一第一及—第二狀態間改變， 且以1¾第-狀態中某—區域之第二狀態的寫人記號來代 表琢記錄資料，該等記號係設置於包含一導向凹槽（guide groove)之記綠軌道上’該導向凹槽則具有某一深度以及因 光反射自記錄軌道上苛笛 „ k上忑罘一狀態 < 某一區域與記錄軌道上 該第^狀態之某-區域間而產生之第—光相位差，該第一 光相It差係以增強該第—狀態中介於記錄軌道間某一區域 與該第-狀態中^記綠軌道上某—區域之光相位差。 發明.背景 資料可以具有—料寫頭之掃描裝置於記錄媒體中加以 儲存起fm寫頭將一輕射A束聚焦在該媒體之資料層 上，並猎由來自軌道上凹槽之軌道資料將資料記錄至一未 寫入之軌道’當该媒體係圓磁碟形，該凹槽則爲圓形或 螺旋:，而該軌道資料則以—徑向軌道誤差信號之形式表 現^來n目對較高功率之輕射光束以代表欲寫入資料 乙一信號加以調變時’肖資料則以光學上可偵測之記號的 :1被寫入執道中，在讀取資，時該#射光束則相對有一 較低，功率’當該光束自該層反射回來時，同時也已 被以等5己號加以調變完a:在f取時’該軌道資料則可自 該凹槽或原寫入之資料中加以取得。 依據則段所述之光學記錄媒體實已見於日本專利申請案 -4*- 本紙張尺細中國 —：--.·------t------’玎 (請先聞讀背面之注意事項再填寫本頁) 455843第86118670號專利申請案 Α7 ϋ 中文說明書修正頁(88年6月） Β7 ζ lf;:£a實質内， 經濟部中央標準局員工消費合作社印製 五、發明説明（2 ) 一-——- JP-A 5 174380號’該媒體包含埋置有記錄層的光學性薄層 之堆疊區，調整與該記錄層相鄰之堆疊區中透明層的厚 度，使得介於軌道中未曾記錄和已記錄區域之第一光相位 差，得以增強該第一狀態中介於記錄軌道間某一區域與該 第一狀態中於記錄軌道上某一區域之光相位差，相位差間 之關係則增加來自被掃描記號的資料信號。此種已知記錄 媒體之缺點在於；當掃描裝置使用所謂的相位偵測方法自 寫入該資料層的記號來取得一軌道信號時，常常不能正確 地找到軌道。使用高頻相位偵測來取得軌道資料的方法也 已見於其他如美國專利第4 785 441號中。 發明概述 本發明的目的’在於提供一種光學記錄媒體，以便於根 據相位偵測方法與該凹槽可以自該寫入之記號中得到軌道 資料。 當上述之記錄媒體具有下列兩個特性時即可達成本發明 之目的：該導向凹槽之深度係於波長1/24至1/7倍範圍 内’以及該第一光相位差係於0.4至2.0徑度量（radian)之 範圍。相位偵測方法所要求的是一相對較淺的凹槽，最小 的凹槽深度係由一條件所限制一掃描裝置必須能由其中可 獲得到軌道資料。凹槽深度係給定為在該記錄媒體内以波 長為單元的機械性深度。該凹槽深度及該第一光相位差之 相互組合形成一參數範圍，依據相位偵測方法可以自其中 正確地得到軌道資料。 該第一光相位差最好係於〇4至1.1徑度量之範圍中，當 一媒體之相位差小於此數值時，利用相位偵測方法所得到 -5- 本紙張尺度適财ϋϋ家標準（CNS)赠21()><297公着^ ~~ (請先閩讀背面之注意事項再填寫本页) 策- 訂 經濟部中央標準局員工消費合作社印装 Α7 Β7 五、發明説明（3 ) 的軌道信號就會呈現出不對稱性。當輻射光束聚焦低於或 高於該記錄層時，此一不對稱性就會造成軌道信號的振幅 不相同，可利用公式（X-Y)/(2Z)來量度此一不對稱性，其 中X係爲當該輻射光束聚焦於該資料層上方i um處，利 用相位偵測方法所得的軌道誤差信號之最大値；γ係爲當 該II射光束聚焦於該資料層下方1 u m處，利用相位偵測 方法所得的軌道誤差信號之最大値；Z係爲當該輕射光束 正好聚焦於該資料層時’利用相位偵測方法所得的軌道誤 差信號之最大値。 相位偵測軌道信號之品質可準一步加以改善，即控制— 光強度反射在記錄軌道之第二狀態某一區域與反射在記錄 軌道之第一狀態某一區域的比値大於〇· 15，這樣的媒體稱 爲弱光寫入（dark-writing)媒體；對所謂強光寫入（whhe-writing) 媒 體而言 ，其 光強度 反射在 記綠軌 道之第 —狀能 某一區域與反射在έ己綠軌道之弟一狀態某一區域的比値則 最好係大於0.15 ’當對於弱光寫入及強光寫入媒體而言， 當此比値都在0.3至0_5的範圍内時，利用相位偵測法所獲 得軌道信號的對稱性就比較好。 對於一弱光窝入媒體而言，該光強度反射在記綠軌道之 第一狀態某一區域最好係大於—0.15，以使得自該資料層反 射回來的輕射光東中能獲得^圭之資料信號；對於—強光 窝入媒體而言，該光強度反射在記綠軌道之第二狀够某一 區域最好係大於0.15。 在該資料層中之凹槽可用來儲存例如用以觸及該資料的 -6 - 本紙掁尺度適用中國國家標準（CNS) Α4规格（2!〇Χ297公釐） ---；------裝------訂------泉 (請先閲讀背面之注意事項再填寫本頁) 4 5 584 3 A7 ---—____ B7 五、發明説明（4 ) 一~~ 位址資料，這種資料可以以暫時的形式儲存於該凹槽處， 孩凹槽深度最好係於該輻射光束波長丨/丨2至i / 7範圍間。 琢媒體之光相位差可利用將記錄層埋置於一層層的光學 薄層之堆螢區中並碉整這些薄層的厚度來造成，當該記錄 層的材吳於第一狀態中折射係數之虛部大於3 4時，這種 堆置區之設計爲很容易做到的。 孩死綠層的材質最好是屬於相位可變式（phase_change type)的材免’ $於一結晶層（crysta丨Hne iayer)上寫入非結 晶態的記號（amorphous mark)則可大大提昇資料寫入速 度，而這種情形下該第一狀態係一結晶態而該第二狀態則 係一非結晶態。 — 由以下將介紹之實施例中，可將本發明之各種利用方式 充份顯示及闡明出來。 圖示説明 圖1顯示本發明記錄媒體之橫截面圖； 圖2顯示該媒體記錄層之平面圖： 圖3顯示本發明作爲掃描媒介之掃描裝置； 經濟部中央標準局貝工消費合作社印製 — ：------ΐ衣------1Τ (請先閔讀背面之注意事項再填寫太頁) 圖4A顯示用以形成一推挽式徑向軌道誤差信號之裝置 電路圖；以及 圖，4B顯示用以形成一赴角時間差（diag〇nal iiine_ difference，DTD)式徑向軌道舉差信號之裝置電路圖。 .—m 發明之詳細説明 如圖1所示’本發明之資料記錄媒體1係以具有預定設計 波長之聚焦輻射光束來寫入及讀取資料，媒體1包含一透 本紙張尺度適用中國國家樣準（CNS ) Α4規格（210 X 297公楚） 455843 A7 B7 五、發明説明（5 ) 明基座（substrate) 2與一記錄層（recording layer) 3，該記 錄層可由一輻射光束以透過基座2的方式加以掃描，記綠 層3則被埋置於基座2上一層層光學薄層所構成之堆疊區 (stack) 4中’堆疊區包含由靠近基座側之一透明干涉層 (interference layer) 5、記錄層3 '另一干涉層6以及一反 射層（reflective layer) 7，並由一保護層（protective layer). 8將堆疊區4與週遭環境隔絕起來以免受其影響β 基座2包含蝕有刻痕之凹槽·圖案於安置有堆疊區4之侧， 對於圓磁碟形的媒體而言，該凹槽圖案係圓形或螺旋形之 凹槽。從堆疊區所在側來看，窣凹槽圖案於基座中所形成 之凹陷部份稱爲凹槽（groove) 9，從同方向來看，該凹槽 圖案所形成之凸起部份稱爲隆凸（land) H 〇，堆疊區4中各 層厚度是如此的薄以致於基座2中凹槽圖案也顯現於記錄 層3之中。45 584 3 A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (I) Scope of the Invention The present invention relates to an optical recording medium for writing and reading data with a radiation beam having a predetermined wavelength Contains-recording layer, # received-radiated beam, the green layer of the child will change between a first and a second state, and the writer's mark will be in the second state of a certain area in the first-second state. To represent recorded data, these marks are set on a green track that includes a guide groove. The guide groove has a certain depth and is reflected from the sirens on the recorded track due to light reflection. First state < The first optical phase difference between a certain region and a certain region of the third state on the recording track, the first optical phase It difference is to enhance a certain between the recording track in the first state The phase difference between a region and a certain region on the green track in the first state is described. Invention. Background information may have a scanning device for the writing head stored in a recording medium. The fm writing head will emit a light A beam. Focus on the data layer of the media On the other hand, the track data from the groove on the track records the data to an unwritten track. 'When the medium is a circular disk, the groove is circular or spiral: and the track data is —The performance of the radial orbit error signal ^ In the case of a light beam with a higher power to modulate the signal to be written, the signal is modulated. 'Xiao data is written with optically detectable marks: 1 is written When entering the channel, when reading the data, the #ray beam is relatively low. When the beam is reflected back from the layer, it has also been adjusted by waiting for 5 a. "The track data can be obtained from the groove or the original written data. The optical recording medium according to the paragraph has been found in the Japanese patent application-4 *-This paper ruler China-:- . · ------ t ------ '玎 (Please read the precautions on the reverse side before filling out this page) 455843 No. 86118670 Patent Application A7 修正 Chinese Manual Correction Page (June 88) Β7 ζ lf ;: In substance, printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economy -JP-A 5 174380 'This medium contains a stacking area of an optical thin layer with a recording layer embedded, and the thickness of the transparent layer in the stacking area adjacent to the recording layer is adjusted so that it has not been recorded in the track and has been recorded. The first optical phase difference of the recording area can enhance the optical phase difference between an area between the recording tracks in the first state and an area on the recording track in the first state. The relationship between the phase differences increases from Scanning the data signal of the mark. The disadvantage of this known recording medium is that when the scanning device uses a so-called phase detection method to obtain a track signal from the mark written in the data layer, the track is often not found correctly. The method of obtaining phase data by frequency phase detection has also been seen in other patents such as US Pat. No. 4,785,441. SUMMARY OF THE INVENTION An object of the present invention is to provide an optical recording medium, so that track data can be obtained from the written mark according to a phase detection method and the groove. The purpose of the present invention can be achieved when the above-mentioned recording medium has the following two characteristics: the depth of the guide groove is in the range of 1/24 to 1/7 times the wavelength 'and the first optical phase difference is in the range of 0.4 to 2.0 Range of Radian. The phase detection method requires a relatively shallow groove. The minimum groove depth is limited by a condition. A scanning device must be able to obtain track data from it. The groove depth is given as a mechanical depth in units of wavelength within the recording medium. The groove depth and the first optical phase difference are combined with each other to form a parameter range, and the track data can be correctly obtained therefrom according to the phase detection method. The first optical phase difference is preferably in the range of 0.4 to 1.1 diameter. When the phase difference of a medium is less than this value, the phase detection method is used to obtain the paper size. CNS) Gift 21 () > < 297 public works ^ ~~ (Please read the precautions on the back before filling out this page) Policy-Order printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Α7 Β7 V. Description of the invention ( 3) The orbital signal will show asymmetry. When the focus of the radiation beam is lower or higher than the recording layer, this asymmetry will cause the amplitude of the track signal to be different. The asymmetry can be measured using the formula (XY) / (2Z), where X is When the radiation beam is focused on i um above the data layer, the maximum 値 of the orbit error signal obtained by the phase detection method is used; γ is when the II beam is focused on 1 um below the data layer, using phase detection The maximum value of the orbit error signal obtained by the measurement method; Z is the maximum value of the orbit error signal obtained by using the phase detection method when the light beam is just focused on the data layer. The quality of the phase detection track signal can be improved step by step, that is, control—the ratio 光 of the light intensity reflected in a certain region of the second state of the recording track to that reflected in a certain state of the first state of the recording track is greater than 0.15. Media is called dark-writing media; for the so-called whhe-writing media, its light intensity is reflected in the first track of the green track—a certain area with reflection The ratio of a certain area of the brother of the green track is preferably greater than 0.15 'For low-light writing and strong-light writing media, when this ratio is in the range of 0.3 to 0_5, use The symmetry of the track signal obtained by the phase detection method is better. For a weak light into the medium, the light intensity reflection in a certain area of the first state of the green track is preferably greater than -0.15, so that the light beam reflected from the data layer can obtain the data Signal; For the strong light nested into the medium, the light intensity reflected in the second shape of the green track is preferably greater than 0.15. The grooves in the data layer can be used to store, for example, -6 to reach the data.-The standard of this paper is applicable to the Chinese National Standard (CNS) A4 specification (2! 〇 × 297 mm) ---; ----- -Install ------ order ------ quan (please read the notes on the back before filling this page) 4 5 584 3 A7 -------____ B7 V. Description of the invention (4) I ~~ Address data. This kind of data can be stored in the groove in a temporary form. The depth of the groove is preferably between the wavelength of the radiation beam 丨 / 丨 2 and i / 7. The optical phase difference of the recording medium can be caused by burying the recording layer in a stack of optical thin layers of the optical thin layer and trimming the thickness of these thin layers. When the material of the recording layer is in the first state, the refractive index is When the imaginary part is greater than 34, the design of this stacking area is easy to achieve. The material of the childish green layer is preferably a phase_change type material. $ Amorphous mark is written on a crystal layer (Hry iayer), which can greatly improve the data. Write speed, in which case the first state is a crystalline state and the second state is an amorphous state. — Various embodiments of the present invention can be fully shown and clarified from the embodiments described below. Figure 1 shows a cross-sectional view of the recording medium of the present invention; Figure 2 shows a plan view of the recording layer of the medium: Figure 3 shows the scanning device of the present invention as a scanning medium; Printed by the Bayer Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs-: ------ ΐ 衣 ------ 1T (Please read the notes on the back before filling in the page) Figure 4A shows the circuit diagram of the device used to form a push-pull radial orbit error signal; and 4B shows a circuit diagram of a device for forming a radial difference signal of a radial orbit difference (DTD). .-M Detailed description of the invention is shown in Figure 1. 'The data recording medium 1 of the present invention writes and reads data with a focused radiation beam having a predetermined design wavelength. The medium 1 contains a paper standard that is applicable to Chinese national samples. Standard (CNS) A4 specification (210 X 297 Gongchu) 455843 A7 B7 V. Description of the invention (5) Substrate 2 and a recording layer 3, the recording layer can be transmitted by a radiation beam through the base The 2 method is used to scan, and the green layer 3 is buried in the stacking area (layer) formed by a layer of optical thin layers on the base 2. The 'stacking area contains a transparent interference layer near the base side. layer) 5. Recording layer 3 'Another interference layer 6 and a reflective layer 7 and a protective layer. 8 The stacking area 4 is isolated from the surrounding environment to avoid its influence β base 2 Contains etched grooves and patterns on the side where the stacking area 4 is arranged. For circular magnetic disk-shaped media, the groove patterns are circular or spiral grooves. From the side of the stacking area, the concave portion formed by the 窣 groove pattern in the base is called groove 9. From the same direction, the convex portion formed by the groove pattern is called ridge The land H0, the thickness of each layer in the stacking area 4 is so thin that the groove pattern in the base 2 also appears in the recording layer 3.
實施例I 經濟部中央標準局員工消費合作社印製 -- If .^1 4^1 I— -I - i— n - - 1 - T 09 、v9 (請先閏讀背面之注$項界填寫本頁) *己綠媒體之基座是由聚合碳（P〇lycarb〇naj;e，ρ〇所構 成’折射係數爲1.58，設計使用之波長爲670 nm ;干涉 層5厚度爲90 nm ’由80%之硫化鋅（ZnS)和20 %之二氧 化矽（Si〇2)所構成’折射係數爲2 1 3 ;記錄層3厚度爲3 〇 nm’由鍺銻碲化合物（GeSb2Te4)之相位可變式材質所構 成’折射係數於非結晶態^4.26-i 1.69，於結晶態爲 4_44-i j.〇8 ;干涉層6厚度爲30 nm，其與干涉層5之材 裔相同；反射層7厚度爲1〇〇 ttm ’由鋁合金構成，折射 係數爲1.98-i 7.81。凹槽9的厚度爲40 nm，寬度爲5〇〇 -8 - 本紙張尺度適用中ϊϊί"標皁（CNS)六4齡（训乂別公楚）- -----Example I Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs-If. ^ 1 4 ^ 1 I— -I-i— n--1-T 09 、 v9 (This page) * The base of the green media is made of polymerized carbon (PolycarbOnaj; e, ρ〇) 'refractive index is 1.58, the designed wavelength is 670 nm; the thickness of the interference layer 5 is 90 nm' 80% of zinc sulfide (ZnS) and 20% of silicon dioxide (SiO2) constitute a 'refractive index of 2 1 3; the thickness of the recording layer 3 is 30 nm'. The phase of the germanium antimony tellurium compound (GeSb2Te4) can be The refractive index of the modified material is in the amorphous state ^ 4.26-i 1.69 and in the crystalline state 4_44-i j.〇8; the thickness of the interference layer 6 is 30 nm, which is the same as the material of the interference layer 5; the reflective layer 7 The thickness is 100 ttm 'consisting of aluminum alloy, the refractive index is 1.98-i 7.81. The thickness of the groove 9 is 40 nm, and the width is 500-8.-This paper is applicable to the standard soap (CNS) Age 6 and 4 (Excuse me, don't do it)------
Ui 4 5 534 3 8^6. 2 8修正 補充 第86118670號專利申請案 A7 中文說明書修正頁(88年6月)_B7 克、發明説明（6 ) nm，而凹槽間距也就是記錄軌道間距為9〇〇 nm。 I n^— m t—^1 ·11 nn I'^i/x. ^^^1 ^^^1 n^i I 3.-¾ (請先閲讀背面之注意事項再填寫本頁) 圖2顯示出具有凹槽9和隆凸1〇之記錄層3的一部份，資 料係寫入於凹槽中’記錄層3最初係為結晶態，在寫入的 過程中記錄層上即產生一非結晶態的區域1丨（稱為記 號），該等記號的長度和位置則代表了記錄於媒體上的資 料，堆疊區4中記錄層之非結晶態區域的光強度反射為 0.07 ’堆疊區4之結晶態區域的光強度反射為〇.丨8，非結 晶態反射比上結晶態反射之比值因而為0.39，兩種光強度 反射係由聚焦之輻射光束於沒有凹槽的區域中量測而得。 於軌道内之結晶態區域所得光反射（圖2中標示為，a，者） 比起於軌道之間亦為結晶態4) ’之區域，在相位上提前了 1.2控度I，於軌道内之非結晶態區域所得光反射（圖2中 標示為1 c 1者）比起於軌道上亦為結晶態之區域，在相位上 提前了 〇‘6徑度量’因此隆a和凹槽之間的相位差則為記 號與記號之間區域的相位差所相對增強加大，若不如此擺 置，則凹槽的有效深度將於有記號之位置所增強加大。 經濟部中央標準局員工消費合作社印聚Ui 4 5 534 3 8 ^ 6. 2 8 Amendment Supplementary Patent Application No. 86118670 A7 Chinese Correction Sheet (June 88) _B7 grams, invention description (6) nm, and the groove pitch is the recording track pitch as 900 nm. I n ^ — mt— ^ 1 · 11 nn I '^ i / x. ^^^ 1 ^^^ 1 n ^ i I 3.-¾ (Please read the precautions on the back before filling this page) Figure 2 shows Part of the recording layer 3 with grooves 9 and ridges 10 was written in the grooves. 'The recording layer 3 was originally crystalline. During the writing process, a non- The crystalline region 1 丨 (called a mark). The length and position of these marks represent the data recorded on the medium. The light intensity reflection of the non-crystalline region of the recording layer in the stacking zone 4 is 0.07 'stacking zone 4 The light intensity reflection in the crystalline region is 0.18, and the ratio of the crystalline reflection on the amorphous reflection ratio is therefore 0.39. The two types of light intensity reflection are measured by the focused radiation beam in the area without the groove. Got. The light reflection obtained in the crystalline region in the orbit (labeled as a, in Figure 2) is 1.2 degrees earlier in phase than that in the crystalline region 4) 'between the orbits. The light reflection obtained from the amorphous region (marked as 1 c 1 in FIG. 2) is phase-shifted by 6 in diameter compared to the region that is also crystalline on the orbit. The phase difference is the relative increase in the phase difference between the mark and the mark. If it is not placed in this way, the effective depth of the groove will be strengthened and increased. Consumers' Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs
推挽式軌道誤差信號之最大量測值，相當於具有為求得 最大推挽式信號而將深度作最加化考量的媒體中所得數值 之9 0 %，右以下面將介紹之知描裝置來量測，則相位憤測 轨道誤差信號之最大值為0.24 ’軌道誤差信號的數值係以 記錄媒體中用來窝入資料之頻道時脈周期（channel cl〇ck period)^基礎作正規化（normalize)後之時間差β 實施例I I 記錄媒體之基座在此也是由聚合碳（PC)所構成，折射 -9 - 本紙張尺度適用令國國家標隼（CNS ) A4規格（210X297公釐） - 455843 A7 B7 年 第86118670號專利申請案 中文說明書修正頁(88年6月） 五、發明说明（7 ) β ^^^1 ^^^^1 ^^^^1 ^—^1« HH I - -1 ^—>1 ^^^^1 (請先閲讀背面之注意事項再填窩本頁) 係數為1.5 8 ’设計使用之波長為6 7 0 n m ;堆疊區之各層 構造如同圖1所示，干涉層5厚度為95 nm，由80%之硫 化鋅（ZnS)和2 0 %之二氧化沙（Si〇2)所構成，折射係數為 2.13，圮錄層3厚度為25 nm，由緒鋒碑化合物（Gesb2Te4) 之相位可變式材質所構成，折射係數於非結晶態為4 26“ 1.69 ’於結晶態為4_44-i 3.08 ;干涉層6厚度為35 nm，其 與干涉層5之材質相同；反射層7厚度為1〇〇 nm，由銘合 金構成，折射係數為1.98-i 7.81。凹槽9的厚度為5 5 n m，寬度為400 n m，凹槽間距為900 n m。 資料係以非結晶έ己號的形式寫入於凹槽之結晶態環境 中，堆疊區4中之非結晶態區域的光強度反射為〇 〇5，堆 叠區4之結晶態區域的光強度反射為〇. 16，非結晶態反射 比上結晶態反射之比值因而為0.3 1，此兩個數值皆於沒有 凹槽的區域中量測而得。 於軌道内之結晶態區域所得光反射（圖2中標示為，a，者） 比起於軌道之間亦為結晶％之區域，在相位上提前了 1 6 徑度量，於軌道内之非結晶態區域所得光反射（圖2中標示 為’ c '者）比起於軌道之間亦為結晶態之區域（圖2中標示為 者），在相位上提前了 0.7徑度量。 經濟部中央標準局員工消费合作社印装 推挽式軌道誤差信號之最大量測值，相當於具有為求得 最大推挽式信號而將深度作最加化考量的媒體中所得數值 之9 5 %，而相位偵測軌道誤差信號之最大值為〇 24。The maximum measurement value of the push-pull track error signal is equivalent to 90% of the value obtained in the media with the maximum depth for the maximum push-pull signal. To measure, the maximum value of the phase error orbit error signal is 0.24. The value of the orbit error signal is normalized based on the channel clock period of the channel used to embed data in the recording medium. The time difference β after normalize) Example II The base of the recording medium is also made of polymerized carbon (PC), which is refracted -9-This paper size applies the national standard (CNS) A4 specification (210X297 mm)- 455843 A7 B7 No. 86118670 Patent Application Chinese Correction Sheet (June 88) V. Description of Invention (7) β ^^^ 1 ^^^^ 1 ^^^^ 1 ^ — ^ 1 «HH I- -1 ^ — > 1 ^^^^ 1 (Please read the precautions on the back before filling in this page) Coefficient is 1.5 8 'Designed to use a wavelength of 6 7 0 nm; the structure of the layers in the stacking area is as shown in Figure 1 As shown, the interference layer 5 has a thickness of 95 nm and is composed of 80% zinc sulfide (ZnS) and 20% sand dioxide (SiO2). The refractive index is 2.13, and the thickness of the recording layer 3 is 25 nm. It is composed of a phase-variable material of the Xu Fengbei compound (Gesb2Te4). The refractive index is 4 26 in the amorphous state and 1.69 in the crystalline state. i 3.08; The thickness of the interference layer 6 is 35 nm, which is the same as the material of the interference layer 5. The thickness of the reflective layer 7 is 100 nm, which is composed of a Ming alloy, and the refractive index is 1.98-i 7.81. The thickness of the groove 9 is 5 5 nm, width is 400 nm, and groove pitch is 900 nm. The data is written in the crystalline environment of the groove in the form of an amorphous horn, and the light intensity reflection of the amorphous area in the stacking area is 〇05, the light intensity reflection of the crystalline region of the stacking region 4 is 0.16, and the ratio of the crystalline reflection on the amorphous reflection ratio is therefore 0.3 1. These two values are measured in the area without the groove. The light reflections obtained from the crystalline regions in the orbits (labeled as "a" in Fig. 2) are 16 degrees earlier in phase than the regions that are also crystalline% between the orbits. Ratio of light reflection (marked as 'c' in Figure 2) obtained in the amorphous region The area starting from the track is also crystalline (marked in Figure 2), which is 0.7 metric advance in phase. The maximum measured value of the push-pull track error signal printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs , Which is equivalent to 95% of the value obtained in the medium with the maximum depth for the maximum push-pull signal, and the maximum value of the phase detection track error signal is 024.
實施例III 記綠媒體之基座在此也是由聚合碳（PC)所構成，折射 -10- 本纸張尺度適用中國國家標準（CNS ) A4規格（21〇Χ297公釐） 4 5 5 8 4 3 A7 B7 年ί!日 ____ V. 第86118670號專利申請案 中文說明書修正頁(88年6月） 五、發明説明（8 ) I I In n^i I— I 1^1 ^^ (請先閲讀背面之注意事項再填寫本頁) 係數為1.58，設计使用之波長為67〇 nm ;堆疊區之各層 構造如同圖1所示，干涉層5厚度為7〇 nm，由8〇%之硫 化鋅（ZnS)和20%之二氧化矽（Si〇2)所構成’折射係數為 2.13 ,記綠層3厚度為25 nm，由鍺銻碲化合物（GeSb2Te4) 之相位可變式材質所構成，折射係數於非結晶態為4 4〇^ 1.96，於結晶態為4‘65-i 3.81 ;干涉層6厚度為25 nm，其 與干涉層5之材質相同；反射層7厚度為1〇〇 nm，由鋁合 金構成’折射係數為1.98-i 7.81 凹槽9的厚度為51 nm ’寬度為500 nm ’凹槽間距為87〇 。 Η料係以非結晶態記號的形式寫入於凹槽之結晶態環境 中，堆疊區4中之非結晶態區域的光強度反射為〇 〇43，堆 疊區4之結晶態區域的光強度反射為〇. 17，非結晶態反射 比上結晶反射之比值因而為〇 25，此兩個數值皆於沒有 凹槽的區域中量測而得。 於軌道内之結晶態區域所得光反射（圖2中標示為，a _者） 比起於軌道之間亦為結晶態之區域，在相位上提前了 15 徑度量，於軌道内之非結晶態區域所得光反射（圖2中標示 為_ c 1者）比起於軌道上為結晶態之區域，在相位上提前了 0.8徑度量。 經濟部中央標準局負工消费合作社印笨 推谠式軌道誤差信號之最大量測值，相當於具有為求得 最大推挽式信號而將深度作最佳化考量的媒體中所得數值 足9 5 %，而相位偵測軌道誤差信號之最大值為〇3。 雖然上述本發明三個實施例之記錄媒體係以非結晶態之 记號寫入結晶態的周遭環境中，本發明同樣可適用於以結 -11 本紙張从通财nil緖準（CNS ) M規格⑼㈤97公幻 經濟部中央標準局員工消費合作社印製 45 584 3 A7 B7 五、發明説明（9 ) 晶態之記號寫入非結晶態周遭環境中之記錄媒體；衣發明 亦不只限於將記錄訊息寫入凹槽之記錄媒體，其同樣可適 用於將記綠訊息寫入凹槽間之隆凸之記錄媒體。堆疊區4 可以有各種不同形式，也可以於圖1之基座2與堆疊區4中 干涉層5之間再加入一反射層，同樣也可於堆疊區與基座 間再加入干涉層與反射層，堆憂區也可僅包含3、4、5 層，如此之堆疊設計很適合用於僅窝入一次之記錄媒體， 記錄層的材質可爲相位可變式材質、染料（dye)或適合以 光學方式窝入資料的其他材質。 掃瞒裝置 _ 圖3顯示適合於本發明中用來於該媒體中寫入及讀取資 料之一光學掃瞄裝置，圖上顯示了記錄載體1之一部份， 其包含了在凹凸形狀中以凸起之部份所代表的資料，該資 料層經由基座2而被掃瞄，而該記錄載體也可包含不止一 層之資料層而排列成一層層之堆疊結構。 掃瞄裝置包含可發出輻射光束13之一輻射光源〗2，舉 例而言，可爲一種半導體型雷射，該輻射光束經由一接物 鏡系統1 4而聚焦於資料層3，圖中爲簡化起見僅以單—透 鏡來表示，由資料層反射回之輕射光束經由一分光儀被導 向至一偵、測系統1 5，該分光儀可爲一半穿透式平台，— 繞射光栅（diffraction gratjng)或者具極化依賴性 (polarization-dependent)，該偵測系統將入射光束轉化成一 個或多個電子信號及控制信號，而該電子信號則饋入一電 子式電路16中以得出代表自該記錄載體讀出資料之一資 -12- 本紙張尺度適用t囡國家標準（CNS ) A4規格（210X297公釐） I n I— I— I n n n l J— u .^1 n T n 1 n . I ! --- 0¾ ,1'y (請先閱讀背面之注意事項再填寫本肓) 455843 經濟部中央標準局員工消费合作社印製 A7 B7 五、發明説明（10 ) - 料信號Si。該徑向軌道誤差信號1爲控制信號之―，代表 該卷射光束於該資料平面所形&光點《中心至,!被掃睹軌道 之中心線之間的距離；聚焦誤差信號Sf爲另—控制信號， 代表該輻射光束之焦點與該資料平面之距離，此兩個誤差 L號則被積入用以控制該輻射光束的焦點位置之一伺服電 路（servo circuit) 1 7。由圖中可知焦距的控制是根據該焦 距誤差信號，將接物鏡系統1 4依其光學軸方向移動，·而 极向軌逍調整是根據該徑向軌道誤差信號，將接物鏡系統 依垂直於軌道的方向移動，在寫入時，該輻射光源的強度 則由記錄資料來加以調變。 圖4顯示出·ί貞測系統1 5之電路結構’以及由侦測信號如 何取得一徑向軌道誤差信號之相關電子式電路16之部份 圖示。圖4Α顯示依據該推挽式方法來取得一徑向軌道誤 差信號之電路設計，該偵測系統1 5包含一具有四個輕射 光感應偵測元件A、Β、C和D之四相偵測器（quadrant detector) ’由偵測元件A和B所得的偵測信號於放大器i 8 中相加並放大，相同地，由偵測元件C和D所得的偵測信 號於放大器1 9中相加並放大，放大器1 8和1 9的輸出則連 至一差動放大器20中以形成兩個輸入信號的差値，差動 放大器20的輸出信號即爲該_推挽式徑向軌道誤差信號Example III The pedestal of the green media is also made of polymerized carbon (PC), which is refracted -10- This paper size applies the Chinese National Standard (CNS) A4 specification (21〇 × 297 mm) 4 5 5 8 4 3 A7 B7 years! Date! __ V. Revised Chinese Manual of Patent Application No. 86118670 (June 88) V. Description of Invention (8) II In n ^ i I—I 1 ^ 1 ^^ (please first Read the notes on the back and fill in this page again.) The coefficient is 1.58, and the designed wavelength is 67nm. The structure of the layers in the stacked area is as shown in Figure 1. The thickness of the interference layer 5 is 70nm. Zinc (ZnS) and 20% silicon dioxide (SiO2) are composed of a refractive index of 2.13, the thickness of the green layer 3 is 25 nm, and is composed of a phase-variable material of germanium antimony tellurium (GeSb2Te4). The refractive index is 4 4 0 ^ 1.96 in the amorphous state and 4'65-i 3.81 in the crystalline state; the thickness of the interference layer 6 is 25 nm, which is the same material as the interference layer 5; the thickness of the reflective layer 7 is 100 nm It is made of aluminum alloy. The refractive index is 1.98-i 7.81 The thickness of the groove 9 is 51 nm, and the width of the groove is 500 nm. The groove pitch is 87. The material is written in the crystalline environment of the groove in the form of an amorphous mark. The light intensity reflection of the amorphous region in the stacking region 4 is 〇43, and the light intensity reflection of the crystalline region in the stacking region 4 is It is 0.17, and the ratio of the crystalline reflection on the amorphous reflection ratio is therefore 025. Both of these values are measured in the area without the groove. The light reflection in the crystalline region in the orbit (labeled as a_ in Figure 2) is 15 degrees ahead of the phase in the phase compared to the crystalline region between the orbits. The amorphous state in the orbit The light reflection obtained in the area (the one marked as _ c 1 in FIG. 2) is 0.8 metric earlier in phase than the area in which the orbit is crystalline. The maximum measured value of the Indian stupid push-type orbital error signal of the Central Standards Bureau of the Ministry of Economic Affairs of the Consumer Cooperative is equivalent to the value obtained in media with a depth of optimization for the maximum push-pull signal. 9 5 %, And the maximum value of the phase detection track error signal is 0.3. Although the recording medium of the above three embodiments of the present invention is written in a crystalline surrounding environment with an amorphous mark, the present invention is also applicable to the use of the -11 paper from the National Bank of China (CNS) M Specifications⑼㈤97 Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Public Affairs and Economics 45 584 3 A7 B7 V. Description of the invention (9) The crystalline mark is written into the recording medium in the surrounding environment of the amorphous state; The recording medium written into the groove is also applicable to the recording medium in which the green message is written into the convexity between the grooves. The stacking area 4 may have various forms, and a reflective layer may be added between the base 2 and the interference layer 5 in the stacking area 4, and an interference layer and a reflective layer may also be added between the stacking area and the base. The stacking area can also contain only 3, 4, and 5 layers. This stacking design is very suitable for recording media that are nested only once. The material of the recording layer can be phase-variable material, dye, or suitable for Optically embed other materials of data. Concealment device_ Figure 3 shows an optical scanning device suitable for writing and reading data in the medium of the present invention. A part of the record carrier 1 is shown in the figure, which is included in the concave-convex shape. The data represented by the raised portion is scanned through the base 2, and the record carrier may also include more than one data layer arranged in a layered structure. The scanning device includes a radiation light source that can emit a radiation beam 13. For example, it can be a semiconductor laser. The radiation beam is focused on the data layer 3 through an objective lens system 14. See only the single-lens representation, the light beam reflected by the data layer is directed to a detection and measurement system 15 through a spectrometer, which can be a semi-transmissive platform, a diffraction grating (diffraction (gratjng) or polarization-dependent, the detection system converts the incident beam into one or more electronic signals and control signals, and the electronic signals are fed into an electronic circuit 16 to obtain a representative One of the data read from this record carrier -12- This paper size applies to the national standard (CNS) A4 specification (210X297 mm) I n I— I— I nnnl J— u. ^ 1 n T n 1 n I! --- 0¾, 1'y (Please read the notes on the back before filling in this card) 455843 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (10)-Material signal Si. The radial orbit error signal 1 is one of the control signals, and represents the distance between the convergent beam and the light spot "center to ,! centerline of the track being scanned; the focus error signal Sf is In addition, the control signal represents the distance between the focal point of the radiation beam and the data plane. The two error L numbers are integrated into a servo circuit 1 7 which is used to control the focal position of the radiation beam. It can be seen from the figure that the focus control is based on the focal length error signal, and the objective lens system 14 is moved according to the direction of its optical axis, and the polar track adjustment is based on the radial orbit error signal, and the objective lens system is perpendicular to The direction of the track moves, and the intensity of the radiation source is adjusted by the recorded data during writing. Fig. 4 shows a schematic diagram of the circuit structure of the measurement system 15 and the relevant electronic circuit 16 of how to obtain a radial orbit error signal from the detection signal. FIG. 4A shows a circuit design for obtaining a radial orbit error signal according to the push-pull method. The detection system 15 includes a four-phase detection with four light-emitting light-sensing detection elements A, B, C, and D. (Quadrant detector) 'The detection signals obtained by the detection elements A and B are added and amplified in the amplifier i 8. Similarly, the detection signals obtained by the detection elements C and D are added in the amplifier 19. And amplified, the outputs of the amplifiers 18 and 19 are connected to a differential amplifier 20 to form the difference between the two input signals. The output signal of the differential amplifier 20 is the _push-pull radial orbit error signal
Sr(PP)，此一誤差信號非常噢合用來控制徑向軌道伺服電 — ~~ ^ _ 路中具有未被窝入記號之軌道的記錄媒體。 圖4 B顯示依據高頻相位偵測方法來取得一徑向軌道誤 差信號之電路設計，由偵測系統1 5之偵測元件A和C所得 -13- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I--.^------ΐτ------Λ (請先閏讀背面之注意事項再填寫本ί ) 455843 A7 B7 經濟部中央揉準局貝工消費合作社印製 五、發明説明（11 的偵測信號於放大器21中相加並放大，放大器2〇之輸出 則饋入切波裝置（slicer) 2 2中，該切波裝置則以一偵測位 準來偵測輸入仏號之位準重疊（level cr〇ssingS)以將輸入信 號數位化。由偵測系統2 0之偵測元件B和D所得的偵測信 號於放大器23中相加並放大，其輸出則連至切波装置24 足輸入端，放大器2 1和2 3的輸出信號可以在分別餚入切 波裝置2 2和2 4之前被等化器依偵測信號波形加以修整， 以便補償掃描裝置光學系統之響應的影響。切波裝置2 2 和2 4之數位輸出信號則饋入相位比較器2 5 ,以便產生和 比較器兩個輸入脈衝間相位有所關聯之輸出信號，比較器 2 5之輸出信號則由濾波器2 6再加以進行低通濾波，濾波 器26之輸出信號Sr即爲依據對角時間差方法（DTD)所得出 之把向軌道誤差信號，此爲相位偵測方法中之一特殊實施 例，此一誤差信號非常適合用來控制徑向軌道伺服電路中 包含寫入記號之記錄媒體。 本發明記錄媒體之記錄軌道也可依其他高頻相位偵測方 法所得到之徑向軌道誤差信號來加以追蹤，例如圖4 B所 示之方法而改以類比方式，或者特別是見於美國專利案序 號4 785 441之類比或數位式之相位偵測方法。 14- &紙張尺度適用中國國家標準（〇\5)六4規格（210乂297公釐 I^、1τ-------'·Λ (請先閲讀背面之注意事項再填茛本頁)Sr (PP), this error signal is very suitable for controlling the radial track servo power — ~~ ^ _ recording media with orbital marks in the road. Figure 4B shows a circuit design for obtaining a radial orbit error signal according to the high-frequency phase detection method, which is obtained by the detection elements A and C of the detection system 15-13. This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) I-. ^ ------ ΐτ ------ Λ (Please read the precautions on the back before filling this one) 455843 A7 B7 Central Ministry of Economic Affairs Printed by the Industrial and Consumer Cooperatives 5. Invention Description (The detection signal of 11 is added and amplified in the amplifier 21, and the output of the amplifier 20 is fed into a slicer 2 (2). Positioning level to detect the level cr0ssing of the input signal to digitize the input signal. The detection signals obtained by the detection elements B and D of the detection system 20 are added to the amplifier 23 And amplified, its output is connected to the 24-foot input of the cutting wave device, the output signals of the amplifiers 2 1 and 2 3 can be trimmed by the equalizer according to the detection signal waveform before entering the cutting wave device 2 2 and 2 4 respectively. In order to compensate the influence of the response of the optical system of the scanning device. Digital output signals of the wave-cutting devices 2 2 and 24 Then feed the phase comparator 25 to generate an output signal that is related to the phase between the two input pulses of the comparator. The output signal of the comparator 25 is low-pass filtered by the filter 26, and the filter 26 The output signal Sr is the steering orbit error signal obtained according to the diagonal time difference method (DTD). This is a special embodiment of the phase detection method. This error signal is very suitable for controlling the radial orbit servo circuit. A recording medium including a writing mark is included in the recording medium. The recording track of the recording medium of the present invention can also be tracked according to the radial orbit error signal obtained by other high-frequency phase detection methods, such as the method shown in FIG. Method, or an analog or digital phase detection method especially found in US Patent No. 4 785 441. 14- & Paper size applies Chinese National Standard (0 \ 5) 6-4 specifications (210 乂 297 mm I ^) 、 1τ ------- '· Λ (Please read the notes on the back before filling this page)