【电子行业—DVDManufactureTechnology】

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,DVD,ManufactureTechnology,DVD,概,略,略,何,謂,謂,DVD,演,進,進,英文稱呼,中文稱呼,過去,Digital Video Disc,數字視頻光盤,現在,Digital Versatile Discs,數字通用光盤,過去,現在,下一代,CD (compact disc),Red light DVD,Blue light DVD,CD/DVD/BluelightDVDComparison,DISC,Optical Pick Up,道間距,最短訊息坑,容量,波長,數字孔徑,CD,1.6,m,m,0.8,m,m,650,MB,780nm,0.45,DVD,0.74m,m,0.4,m,m,4.7,GB,635/650nm,0.6,藍光,DVD,0.3,m,m,0.168,m,m,22,G,405nm,0.85,CD,光,盘,盘,坑,坑,纹,纹,DVD,光,盘,盘,坑,坑,纹,纹,蓝,光,光,DVD,光,盘,盘,坑,坑,纹,纹,DVD,ManufactureTechnologykeypoint,Opticalpickup,外,觀,觀,示,示,例,例,OB,側,面,面(,PDIC,所,在,在),Objectivelens,ACTcover,Holderlens,Suspensionwire,connector,Dampingholder,側,面,面(,LD,所,在,在),PCB,FPC,Opticalpickup,外,觀,觀,示,示,例,例,OBandhalfmirror/fullmirror/collimator/LD,Half mirror,collimator,Full mirror,Optical body,Laserdiode,Grating holderassy.,optical pickup,基本原,理,理(一),光電系,統,統動態,示,示意,optical pickup,基本原,理,理(三),读出技,术,术,要點:,聚焦到,衍,衍射极,限,限的最,小,小激光,束,束.,信息,面,的凹凸,(,pit/mirror),反射,光的,強弱,不同.,optical pickup,基本原,理,理(四),主動式,光,光電探,測,測系統: 信,號,號源,LD,過程要,點,點,DISC,Objective lens,collimator,Laser diode,PDIC (photo diode),Half-mirror,grating,LD,lens,Disc/pit,decoder,PDIC,Output equip.,lens,Signal modulation,Light signal,Electronic signal,audio/video,DVD-ROM OPUschematic,某公司,DVD-ROM OPU,完整的,光,光路示,意,意圖,PDIC,(,laserdiode),（,DVD,：,：650n,）,物镜(,objectivelens),（,DVD,CD,共用）,镜(,couplinglens,或,collimator),（,DVD,CD,共用）,光柵镜,Grating lens,CD：,（,（780,）,全反射,（,（）,镜,镜,reflection mirror,（,DVD,CD,共用）,H,棱镜(,PBS,或,dichroicmirror),光柵,grating,（,DVD,：,：650n,）,検出（,DT）,镜,detectionlens,（,DVD,CD,共用）,半透明,半,半反射,镜,镜,half mirror,(,laserdiode),（,CD:780n,）,disc,ACT,的结构,示例,Lens holderassy.,由,物镜和,AF,线圈、,TR,线圈,組成.,通过经,由,由,S,导线向,线,线圈通,电,电、以,及,及和磁,气,气回路,的,的作用,下依,弗来明,左,左手定,律,律，朝,AF(focus),方向和,TR(tracking),方向动,作,作。,Lens holderassy.,magnet,Actcover,Damping holder,TR(tracking),AF(focus),Suspension wire,optical pickup,基本原,理,理(二),LENS,YOKE,Focus coil,TR coil,MAGNET,DISC,vertical deviation,Tracking direction,Focus direction,FO/TR coil,和,lens,都固定在一個可活動的部件上,如果,coil,上通電流,受磁力作用,活動部就帶,lens,上下和左右運動,(,左,圖,示,ACT,循跡時垂直紙面運動,),。,Inner yoke,focus,track,Magnetic direction,collimator,Light beam,ACT,工作原理圖示,TR coil,Actuatorprofile,Objective lens,yoke,Inner yoke,magnet,Focus coil,Tracking coil,Laser ray,Inner yoke,Tracking coil,Focus coil,yoke,Lens/coil holder,collimator,disc,magnet,optical pickup,基本原,理,理(五),Actuator,的作用:,驅動,lens,作,focusandtracking,Tracking,存在的,主,主要原,因,因:,圖,圖1(,軌,軌道的,螺,螺旋排,列,列);,圖,圖2(軌道,中,中心和,轉,轉心的,偏,偏離),Focus,存在的,原,原因:,圖,圖3,各,各種原,因,因造成,的,的,disc,轉動,過,過程,信,信號,面,面的,上,上下,振,振動,Disc turning center,track,Track center,Disc turning shaft,Lens tracking direction,ACT,ACT,Lens focus direction,圖1,圖2,圖3,disc,Pickup,結構,動,動態,演,演示,圖,圖,OPU,製造,技,技術,一般,作,作業,條,條件,要,要求,防塵,防靜,電,電.,溫溼,度,度控,制,制.,OPU,產品,製,製造,關,關鍵,點,點可,分,分為:,零件,部,部品,的,的來,料,料品,質,質控,制,制,光電,零,零件,的,的組,立,立,Actuator,的組,立,立和,測,測試,產品,光,光電,系,系統,的,的調,整,整和,評,評價.,OPU,製造,技,技術,O,PU,的,基本,零,零件,結構零件,光電零件,電,/磁零件,1,OB(optical body),LD(laser diode),Magnet,2,ACT plate (yoke),Grating,Coil,3,Lens holder,Half-mirror,FPC,(flexible printed circuit),4,Damper holder,Full-mirror,Connector,5,Suspension wire,Collimator,VR (variable resistant),6,ACT cover,PDIC,OPU,製造,技,技術,O,PU,的,基本,零,零件-,objectivelens,一般,為,為高,分,分子,樹,樹脂,材,材料,壓,壓注,成,成型,的,的,non-sphericalsurfaceconvexlens,.,作用:,聚焦,光束,圖,圖3,實際,圖,圖片,profile,圖3,正面,示,示意,圖,圖,OPU,製造,技,技術,O,PU,的,基本,零,零件-,Collimator(,准直,透,透鏡,),也有,叫,叫,CP,鏡的,(couplinglens),高分,子,子樹,脂,脂材,料,料壓,注,注成,型,型的,non-sphericalsurfaceconvexlens.,作用:,將發,散,散的,光,光束,准直,成,成平,行,行光,束,束,正面,示,示意,圖,圖,profile,圖3,OPU,製造,技,技術,O,PU,的,基本,零,零件,Fullmirror,圖1,reflector(,反射,鏡,鏡,),也有,叫,叫折,光,光鏡,的,的,(foldingmirror),光學,玻,玻璃,材,材料,加工,成,成的,長,長方,體,體,反,反,射,射面,鍍,鍍反,射,射膜.,作用:,反射,/,轉折,光,光束,half-mirror(,半鏡,半透,半,半反,鏡,鏡,),也有,叫,叫,beam-splitter,圖,2,光學,玻,玻璃,材,材料,加工,成,成的,長,長方,體,體,反,反,射,射面,鍍,鍍有,半,半反,射,射膜,反射,轉,轉折,和,和透,射,射光,束,束,甚至,有,有時,兼,兼作,像,像散,元,元件,圖1,fullmirror,入射光,反射光,透射光,圖,2,halfmirror,OPU,製造,技,技術,O,PU,的,基本,零,零件,grating(,光柵,),一般,由,由由,高,高分,子,子樹,脂,脂通,過,過注,塑,塑射,出,出成,型,型,也有,用,用平,板,板玻,璃,璃蝕,刻,刻加,工,工而,成,成,作用,:,通過,衍,衍射,將一,束,束光,變,變成,若,若干,束,束衍,射,射光,光頭,中,中僅,僅,僅使,用,用,0,級和,+/-,1,級光,。,。,外觀,多,多為,圓,圓餅,形,形,或,或,長,長方,體,體,Grating,表面,的,diffraction,溝槽,One beam,grating,Three beam or more,lens,Three spot,Sub spot,Sub spot,Main spot,OPU,製造,技,技術,O,PU,的,基本,零,零件,Laserdiode(,簡,稱,稱,L,D,激,光,光,二,二,極,極,管,管,鐳,射,射,二,二,極,極,管,管,半,導,導,體,體,激,激,光,光,器,器,),。,半,導,導,體,體,光,光,電,電,器,器,件,件,。,。,Chip,通,常,常,用,用,MOCVD,的,方,方,式,式,生,生,長,長,。,。,在,OPU,里,作,作,為,為,光,光,源,源,。,。,該,部,部,品,品,易,易,被,被,靜,靜,電,電,所,所,劣,劣,化,化,(,所,謂,謂,劣,劣,化,化,是,指,指,部,部,品,品,性,性,能,能,降,降,低,低,甚,至,至,功,功,能,能,喪,喪,失,失,),。,。,。,MD ANODE,LEAD,SUB MOUNT,STEM,基準面,CAP,COVER GLASS,LASER CHIP,（,）,放熱器,COMMON,LEAD,LD ANODE LEAD,光出力,（,power,）,自然発光域,誘導発振域,（激光発振）,th,threshold current,1,IOP,kink,Monitor diode,OPU,製,造,造,技,技,術,術,O,PU,的,基,本,本,零,零,件,件,PDIC(photodiodeIC.,亦,稱,稱,OEIC,opticalelectronicIC),。,半,導,導,體,體,光,光,電,電,器,器,件,件,。,。,光,光,電,電,轉,轉,換,換,器,器,件,件,將,光,光,信,信,號,號,轉,轉,換,換,成,成,電,電,信,信,號,號,。,。,在,OPU,里,作,作,為,為,接,接,收,收,器,器,件,件。,透明,窗,口,光,敏,面,IC,管腳,光,敏,面,OPU,製,造,造,技,技,術,術,O,PU,的,基,本,本,零,零,件,件,FPC(flexibleprintedcircuit)assy.,connector,VR,PDIC,OPU,製造技術,O,PU,的,基本零件,Lensholder anddamping holder/ suspension wire,Suspensionwire,Damping holder,coil,Lensholder,lens,OPU,製造技術,Actuator,的組立要點,Suspensionwire,的有效長度,Suspensionwire,不得變形,Damping glue,的量的大小,組立後,actuator,的性能測量,Fo/Qo,DC sensitivity/AC sensitivity,Fh (,高頻振動頻,率,率),ObjectivelensDynamic tilt,有時需測,bode-plot,測量,ACT,的幅頻特性,和,和相頻特性,.,Act,測試設備是,光,光頭製造的,核,核心設備之,一,一.,OPU,製造技術,Fo/Qo.,Fo,: actuator,最低共振頻,率,率 .,Qo :,共振鋭度.,一,一般定義,也称半功率点,f,L,f,H,f,0,幅度,max,幅度,max,/,2,OPU,製造技術,OPU,的光電調整. 使用專,用,用的,OPU,調整機, 是光頭,製,製造中最核,心,心的設備.,PD-X/PD-Y,調整,PD-X/PD-Y:,它的物理意,義,義,表征的是光,電,電接收器的,光,光敏面對准,光,光軸的程度,(,alignment),。,一般地定義,PD-X=(A+C)-(B+D)/(A+B+C+D),PD-Y=(A+D)-(B+C)/(A+B+C+D),A,B,D,C,OPU,製造技術,OPU,的光電調整,TILT-R/TILT,-T,調整,它,表,征,的,物理,意義,就是,OB LENS,的光軸與系,統,統的光軸的,夾,夾角。,它主要調整,的,的是,laserspot,在,disc,上的,coma.,tangential,radial,TILT,Lens optic-axis,System optic-axis,OPU,製造技術,OPU,的光電調整,Defocus,調整,:,它表征的物,理,理意義就是,當,當光電,IC,上輸出的聚,焦,焦誤差信號,為,為零的時候,OB lens,的焦點偏離,DISC,訊息面的量,度,度。,a,b,defocus,從,圖,示,知,a,/b,兩種情況，在光電,IC,上的光照情形一樣。,FE=(A+C)-(B+D)=0, defocus,就表征焦點和光碟訊息面的偏離程度,.,v,c,Fcs bias at Minimum jitter,V,2,V,1,FES,OPU,製造技術,Defocus and jitter/defocus curve,OPU,製造技術,OPU,的光電調整,EF phase,調整,:,當,optical pickup,使用,threebeam,的循跡誤差,方,方式時,它,它,表征的物理,意,意義就,是: 主光,點,點兩側的輔,助,助光點在跨,軌,軌時,PDIC,上對應的,E/F,光敏區所產,生,生的信號的,相,相位差,。,E/F,的相位差愈,接,接近180,度,度, 循跡,誤,誤差信號的,幅,幅,值,愈大,循跡靈敏度,愈,愈高,.,E signal,F signal,圖1,E/F,利薩如波形, 大約180+/-15度,一光道,E/F,利薩如波形180度,OPU,製造技術,OPU,的光電調整,RF,調整,:,它表征的,就是光碟上,訊,訊息信號的,大,大小,。,綜合考慮信,噪,噪比/激光,頭,頭的,laserdiode,的工作壽命/後續系統,的,的放大工作,情,情形,RF,的幅值必須,調,調節到一定,範,範圍內.,RF p-p,OPU,製造技術,OPU,的評價.,使,使用專用的,光頭評價機,. 評價,機,機也是光頭,製,製造的核心,設,設備之一,光頭評價主,要,要測試以下,參,參數,item,1,IOP,2,RF level,3,PD-X/PD-Y,4,Jitter,5,Defocus,6,FES level,7,TES level,8,FES balance,9,TES balance,10,Lens-tilt (tilt-R, tilt-T),11,E/F phase,12,View character,Viewcharacter,當,objectivelens,在,tracking,方向,左,左,右,右移動大約0.3,mm,時,pickup signal,的變化.,主要指:,jitter/ RF/ TES/TE balance,OPU,製造技術,Pickup parameter-jitter,光,頭,的,綜合,評價,參數,它可以這樣,來,來描述,表徵的是,pickup,輸出的,RF,信號對標准,信,信號或者對,標,標准時鐘在,時,時間軸上的,偏,偏離。時間,抖,抖晃,的物理意義,就,就是,jitter.,它是光頭最,重,重要的評價,指,指標。,t,t,Actual RF signal,Clock signal,OPU,製造技術,TE,光,點,track,中央,TE=0,A+C,B+D,A+C,A+C,B+D,B+D,光點偏左,光,點,正中,光,點,偏,右,A,B,C,D,A+C,B+D,TE =,(A+C)-(B+D),即,TE=PHASE(A+C), PHASE(B+D),DVD TE signal,形成 .,DPD,方式,differential phase detection method,OPU,製造技術,E/F crosstracksignal,E=A,E,SIN (wt ),F=A,F,SIN (wt +,),TE=E-F,Sub spot (E ),Mainspot,Sub spot (F ),radial,0.8,E,F,A,E,A,F, means TEbalance0,Threebeamtrackingmethod,Tracking Errorsignal,形成,OPU,製造技術,FESfocuserror signaland FE balance,即,FE balance,FES,OPU,製造技術,TES (trackingerror signal)and TE balance,即,TE balance,TES,Mecha-deck,製造技術,Mecha-deck:,承載,和轉動,disc,和,optical pickup,的工作平台.,如下圖:,TT onspindle motor,shaft,shaft,Pickup,Geargroup,chassis,Sledmotor,rack,gear,Spindle motor,PCB,holder,Mecha-deck,製造技術,Mecha-deck,的基本零/,組,組件(上頁,所,所示圖面),Turning table,簡稱,TT,也有稱作,platter.,碟片轉檯.,NO.,ITEM,1,Chassis,2,Spindle motor assy. (spindle motor + turning table),3,Sled motor,4,Gear group,5,rack,6,Shaft,7,Pickup assy.,8,Holder shaft,9,PCB,Mecha-deck,製造技術,Mecha,組立的,key point(,1 ),Spindle motor center,到,mainshaft,的距離和,lenscenter,到,mainshaft,的距離的差,值,值要在一個,小,小的公差範,圍,圍內.,即,d,1,-d,2, tolerance(about 0.08mm),Spindle T T centre,Lens centre,d,1,Sub shaft,Main shaft,d,2,Mecha-deck,製造技術,Mecha,組立的,key point(,2 ),Pickup,基準平面到,disc,的距離(圖,中,中,H),要,控,控,制,制,在,在,一,一,個,個,公,公,差,差,範,範,圍,圍,內,內.,T T,Pick up datum,H,Optical pick up,Objective lens,disc,Mecha-deck,製,造,造,技,技,術,術,Mecha,組,立,立,的,的,keypoint(,3),SpindlemotorTT,面,要,要,和,和,pickupdatum,面,平,平,行,行.,或,者,者,使,使,pickup,的,RF,信,號,號,jitter,最,小,小.,方,式,式,一,一,通,通,過,過,調,調,整,整,spindlemotor,使,TT,傾,斜,斜,方,式,式,二,二,通,通,過,過,調,調,整,整,shaft,的,傾,傾,斜,斜.,是,是,目,目,前,前,的,的,通,通,用,用,的,的,方,方,式,式.,TT,Pickup datum plain,由,shaft,構成,圖,中,中,mecha-deck,就,是,是,通,通,過,過,調,調,整,整,三,三,個,個,holder,處,的,的,螺,螺,釘,釘,調,調,動,動,shaft,位,置,置,的,的,高,高,低,低,來,來,完,完,成,成,的,的.,Mecha-deck,製,造,造,技,技,術,術,Mecha,組,立,立,的,的,keypoint(4,),移,動,動,pickup,從,內,內,周,周,到,到,外,外,周,周,或,或,者,者,從,從,外,外,周,周,到,到,內,內,周,周,sledMotor,的,工,工,作,作,電,電,流,流,應,應,該,該,在,在,一,一,定,定,範,範,圍,圍,內,內.,Sledmotor,OPUposition,IOP,UCL,LCL,OPUposition,UCL,LCL,IOP,Systemevaluation,整,個,個,系,系,統,統,主,要,要,構,成,成,pickupassy.,+chassis/spindlemotor/sledmotor/geargroup/shaft/etc.=,mecha.-deck,mecha.-deck,+mechanismframe/etc.,=loader,servo/decoder,+loader/etc.,=,basesystem,Systemevaluation,系,統,統,的,的,評,評,價,價,主,主,要,要,點,點,對,各,各,種,種,碟,碟,片,片,的,的,播,播,放,放,能,能,力,力,常,用,用,disc,種,類,類,標準測試碟,普通碟片,1,Run out(eccentric),CD/VCD,2,Wobble (vertical deviation),DVD-5,3,Scratch,DVD-9,4,Black dots,SVCD,5,fingerprints,DVCD,6,interruption,CD-R/RW,7,unbalance,DVD-/+R,Systemevaluation,系統的,評,評價主,要,要點,可靠性(,reliability).,一般碟,機,機的信,賴,賴性測,試,試項目:,NO.,item,1,高溫,2,低溫,3,溫度衝擊,4,振動,5,震動衝擊,6,高溫高溼,7,跌落,8,EMC/EMI,