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Update on BD-R LTH type disc: Production, market share, and - - PowerPoint PPT Presentation

May 10, 2023 270 likes •492 views

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

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Mitsubishi Kagaku Media Co., Ltd. (MKM) Global New Product Strategy Center

2011/3/16 1

MKM Confidential

Update on BD-R LTH type disc: Production, market share, and development status of SL and DL

AZO dye

CD-R dye DVD-R dye BD-R dye

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2011/3/16 MKM Confidential 2

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
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2011/3/16 MKM Confidential 3

Cover layer Substrate Interface layer Reflective layer Hard coat layer Recording layer

(organic dye)

Laser beam

Disc structure of BD-R LTH

 Simple disc structure similar to CD-R/DVD-R

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Recording layer material BD-R LTH type BD-R (HTL type) Organic dye Inorganic material Manufacturing process Spin-coating Sputtering

  • Vacuum
  • Sequential operation
  • Similar to CD-RW,

DVD-RW, DVD-RAM, BD-RE

  • Air ambient
  • Parallel operation
  • Similar to CD-R, DVD-R

Technologies used in BD-R LTH type disc

  • Advantage from manufacturing point of view -
  • Higher productivity
  • CD-R/DVD-R line can

be utilized for LTH production Advantage

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2011/3/16 MKM Confidential 5

Multi-chambered sputtering machine loading chamber

Sputtering Process

  • Sequential operation -

 A trouble in a chamber stops the whole line.  The whole line stops during maintenance of a chamber.

  • mask and/or shield change
  • target change

resume evacuation check sputtering rate etc., Then, restart production

a few hours/day for maintenance

process chamber 5 sec/disc 5 sec/disc

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Spin-coater

Spin-coating Process

  • Parallel operation -

 No line stoppage due to a spin-coater trouble.  No need to stop the line during spin-coater maintenance

coater cup change:

  • quick: 5minutes
  • less frequency: twice /week

5 sec/disc 5 sec/disc 20sec/disc/coater 10 sec/disc 10 sec/disc

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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

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2011/3/16 MKM Confidential 8

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

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Market Results and Forecast by FRL,2010/Dec.

LTH-SL share: 15% of all BD-R SL LTH share: 76% of all BD

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Update on development status of Higher speed SL LTH

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1,E-06 1,E-05 1,E-04 1,E-03 1,E-02 1,E-01 3 6 9 12 15 18 21 24 27 SER Power [mW] 2x 4x 6x 8x 10x 12x

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.

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Recording characteristics of LTH disc up to 12x speed

  • Normalized by optimum write power -

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1,E-06 1,E-05 1,E-04 1,E-03 1,E-02 1,E-01 0,7 0,8 0,9 1 1,1 1,2 1,3 SER Relative power (Pw/Pwo) 2x 4x 6x 8x 10x 12x

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Update on development status of DL LTH

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6x speed recording performance of DL LTH

  • Comparison DL and SL -

Upper limit : 7.0% for SL/L0 Upper limit : 8.5% for L1 The write strategy and power were optimized within the Ver.1.3 framework.

2011/3/16 MKM Confidential 14

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5 7 9 11 13 15

  • 0,3
  • 0,2
  • 0,1

0,1 0,2 0,3 LEQ Jitter(%) (Pw-Popt) / Popt 5 7 9 11 13 15

  • 0,3
  • 0,2
  • 0,1

0,1 0,2 0,3 LEQ Jitter(%) (Pw-Popt) / Popt

  • --1x ---2x ---4x ---6x

Layer 0 Layer 1

Recording performance at 1x to 6x speed

Upper limit: 7.0% for L0 Upper limit: 8.5% for L1

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L0 L1

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.

Transparency through L1 is changed after L1 recording. LD beam

2011/3/16 MKM Confidential 16

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2 4 6 8 10 12 14 16 8 9 10 11 12 13 14 15 16 17 LEQ Jitter(%) Pw(mW) Before After

Impact of L0 status on L1 recording performance

LEQ jitter(both edge) on L0 Before and after L1 recording

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

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4 6 8 10 12 1 10 100 1.000 10.000 100.000 1.000.000 LEQ jitter (%) Read Cycle Trailing Leading 4 6 8 10 12 1 10 100 1.000 10.000 100.000 1.000.000 LEQ jitter (%) Read Cycle Trailing Leading

2X record 1x-DC(0.7mW) read

Layer 0 Layer 1

Read stability test

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item Layer 0 Layer 1 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 Modulation at 1x 0.40  0.40 0.49  0.40 Modulation at 6x 0.43  0.40 0.49  0.40 Jitter at 1x 5.8%  7.0% 6.2%  8.5% Jitter at 6x 6.8%  7.0% 6.9%  8.5% Wobble CNR(rec.)at 1x 39dB  26dB 36dB  26dB NWS 0.30 0.20 to 0.55 0.28 0.20 to 0.55

Current sample disc performance to the physical

  • spec. parameters derived from Ver. 1.3
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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.

CD-R dye DVD-R dye BD-R dye AZO dye for the three generations of recordable OD

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2011/3/16 MKM Confidential 21

Thank you for your attention