Update on BD-R LTH type disc: Production, market share, and development status of SL and DL AZO dye BD-R CD-R DVD-R dye dye dye Mitsubishi Kagaku Media Co., Ltd. (MKM) Global New Product Strategy Center MKM Confidential 2011/3/16 1
Contents 1. BD-R LTH production and market share - Introduction of technologies used in LTH - Advantages of production process for LTH - Market share of LTH 2. Development status of Higher speed SL LTH 3. Development status of DL LTH 2011/3/16 MKM Confidential 2
Disc structure of BD-R LTH Simple disc structure similar to CD-R/DVD-R Laser beam Hard coat layer Interface layer Cover layer Recording layer (organic dye) Reflective layer Substrate 2011/3/16 MKM Confidential 3
Technologies used in BD-R LTH type disc - Advantage from manufacturing point of view - BD-R (HTL type) BD-R LTH type Recording layer Inorganic material Organic dye material Spin-coating Sputtering Manufacturing - Air ambient - Vacuum process - Parallel operation - Sequential operation - Similar to CD-R, DVD-R - Similar to CD-RW, DVD-RW, DVD-RAM, Advantage BD-RE - Higher productivity - CD-R/DVD-R line can be utilized for LTH production 2011/3/16 MKM Confidential 4
Sputtering Process - Sequential operation - 5 sec/disc 5 sec/disc loading chamber A trouble in a chamber stops the whole line. process The whole line stops chamber during maintenance of a chamber. Multi-chambered - mask and/or shield change sputtering machine - target change a few hours/day resume evacuation for maintenance check sputtering rate etc., Then, restart production 2011/3/16 MKM Confidential 5
Spin-coating Process - Parallel operation - Spin-coater 10 sec/disc 5 sec/disc 10 sec/disc 5 sec/disc No line stoppage due to a spin-coater trouble. No need to stop the line during spin-coater maintenance 20sec/disc/coater coater cup change: - quick: 5minutes - less frequency: twice /week 2011/3/16 MKM Confidential 6
Recycle of Recordable DVD infrastructure Huge infrastructure of the recordable DVD disc manufacturing, with over 5 Billion discs/year capacity, can easily be converted to BD-R LTH manufacturing lines, preparing to future demand growth with lower cost products. The Infrastructure/resource itself can be recycled for economy and environment-conscious viewpoint! Finally, It is thought to be the benefits of the whole optical disc and BD industry as well as the end users through low cost production, flexible supply capability, and saving environment. Photo: DVD-R dual layer production lines at MCI 2011/3/16 MKM Confidential 7
LTH disc penetration in the whole BD-R SL market The ration of BD-R LTH type to the total single layer BD-R in Japan has been increasing and reached 20-25% in Q4 2010. *All speed combined By GFK in Japan 2011/3/16 MKM Confidential 8
Market Results and Forecast by FRL,2010/Dec. LTH share: LTH-SL share: 76% of all BD 15% of all BD-R SL 2011/3/16 MKM Confidential 9
Update on development status of Higher speed SL LTH 2011/3/16 MKM Confidential 10
Recording characteristics of LTH disc up to 12x speed 6x BD-R LTH type disc was released from MKM in 2009. Higher speed recordable LTH disc is under development. 1,E-01 1,E-02 2x 1,E-03 4x 6x SER 1,E-04 8x 10x 1,E-05 12x 1,E-06 3 6 9 12 15 18 21 24 27 Power [mW] 2011/3/16 MKM Confidential 11
Recording characteristics of LTH disc up to 12x speed - Normalized by optimum write power - 1,E-01 1,E-02 1,E-03 2x SER 4x 1,E-04 6x 8x 1,E-05 10x 12x 1,E-06 0,7 0,8 0,9 1 1,1 1,2 1,3 Relative power (Pw/Pwo) 2011/3/16 MKM Confidential 12
Update on development status of DL LTH 2011/3/16 MKM Confidential 13
6x speed recording performance of DL LTH - Comparison DL and SL - Upper limit : 8.5% for L1 Upper limit : 7.0% for SL/L0 The write strategy and power were optimized within the Ver.1.3 framework. 2011/3/16 MKM Confidential 14
Recording performance at 1x to 6x speed Layer 1 Layer 0 15 15 13 13 LEQ Jitter(%) LEQ Jitter(%) 11 11 9 9 Upper limit: Upper limit: 7 7 8.5% for L1 7.0% for L0 5 5 -0,3 -0,2 -0,1 0 0,1 0,2 0,3 -0,3 -0,2 -0,1 0 0,1 0,2 0,3 (Pw-Popt) / Popt (Pw-Popt) / Popt ---1x ---2x ---4x ---6x 2011/3/16 MKM Confidential 15
A Concern to dye-based dual layer *L1 recording status dependency on L0 recording characteristics? *How is the impact of the transparency change due to L1 recording? These concerns are raised from the experience in DVD recordable Dual-Layer, where only dye-recording layer technology is adopted. Sometime more than 10% recording power shift was observed. LD beam L1 Transparency through L1 is changed after L1 recording. L0 2011/3/16 MKM Confidential 16
Impact of L0 status on L1 recording performance No significant impact on L0 recording performance and power regardless of L1 status. The reflectivity and modulation are also not affected by L1 status. i.e., no change of L1 transparency before and after L1 recording 16 LEQ jitter(both edge) on L0 Before and after L1 recording 14 12 LEQ Jitter(%) 10 8 Before 6 After 4 2 8 9 10 11 12 13 14 15 16 17 Pw(mW) 2011/3/16 MKM Confidential 17
Read stability test 2X record 12 1x-DC(0.7mW) read Layer 0 Trailing 10 LEQ jitter (%) Leading 8 6 4 0 1 10 100 1.000 10.000 100.000 1.000.000 Read Cycle 12 Trailing Layer 1 10 LEQ jitter (%) Leading 8 6 4 0 1 10 100 1.000 10.000 100.000 1.000.000 Read Cycle 2011/3/16 MKM Confidential 18
Current sample disc performance to the physical spec. parameters derived from Ver. 1.3 Layer 0 Layer 1 item typical data Spec typical data Spec Reflectivity(unrec.) 4% 4 to 8% 4% 4 to 8% P-P level(unrec.) 0.59 0.21 to 0.60 0.46 0.21 to 0.60 P-P level (rec.) at 1x 0.44 0.21 to 0.60 0.34 0.21 to 0.60 P-P level (rec.) at 6x 0.47 0.21 to 0.60 0.39 0.21 to 0.60 PPr at 1x 0.75 0.5 to 1.0 0.74 0.5 to 1.0 PPr at 6x 0.80 0.5 to 1.0 0.85 0.5 to 1.0 Pwo at 1x 8.6mW 6.0 to 12.0mW 11.0mW 6.0 to 12.0mW Pwo at 6x 22.0mW 8.5 to 22.0mW 19.2mW 8.5 to 22.0mW 0.40 0.40 Modulation at 1x 0.40 0.49 0.40 0.40 Modulation at 6x 0.43 0.49 7.0% 8.5% Jitter at 1x 5.8% 6.2% 7.0% 8.5% Jitter at 6x 6.8% 6.9% 26dB 26dB Wobble CNR(rec.)at 1x 39dB 36dB NWS 0.30 0.20 to 0.55 0.28 0.20 to 0.55 2011/3/16 MKM Confidential 19
Summary 1. Advantages of BD-R LTH type disc in production, leading to user benefits, were discussed. 2. Market share of LTH type disc is increasing: 20%-25% of the whole BD-R SL in Q4 2010 in Japan 3. Higher speed recordable SL LTH disc is under development. Recording performance up to 12x was shown. 4. Examined feasibility of 6x speed recording of DL LTH disc. Improving DL disc to secure more margin for some items. BD-R dye DVD-R dye CD-R dye AZO dye for the three generations of recordable OD 2011/3/16 20 MKM Confidential
Thank you for your attention 2011/3/16 MKM Confidential 21
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