ME Technology-AIT,S-AIT and Bi-directional recording

Transcription

1 ME Technology-AIT,S-AIT and Bi-directional recording Seiichi Onodera Advanced Tape Storage Development Department Metal Evaporated Media Division, Recording Media Company Sony Corporation Micro Systems Network Company Sendai TEC Sakuragi, Tagajo-shi, Miyagi-ken Japan Phone: FAX: Presented at the THIC Meeting at the Sony Auditorium, 3300 Zanker Rd, San Jose CA March 9-10, 2004

2 Contents Background-Areal Density Migration ME Technologies -Process -Structure -Properties AIT S-AIT Migration & future Technologies Bi-directional Recording Summary

3 Background Areal Density Migration Areal Density [ Gbits/inch 2 ] Year of Commercialization

4 ME Technologies: Process

5 ME Technologies Process Particle Evaporation Layer Binder Base Film Base Film

6 ME Technologies: Structures Advanced Metal Evaporated Tape Structure Magnetic Layer Structure of Metal Evaporated Media with DLC Layer Evaporated Layer DLC Protective Layer Lubricant Layer Base Film Back Coating

7 ME Technologies: For Higher Recording Density Very fine structure Low media noise & high resolution Easy to obtain thinner magnetic layer Suitable for MR/GMR Heads Magnetic/Protective Layers Hard disk like thin film process 40nm 100nm Double layer Cross-sectional TEM image of ME tape (DVC) Noize Spectra (Inductive Head) 20nm Co crystallites CoO crystallites Structural Model

8 ME Technologies: T.Ito et al., J.Appl.Phys.91(2002)4468 FFT Inverse FFT Cross-sectional HREM image (JEOL JEM-3000F at 300kV) Processed image

9 ME Technologies: Properties AIT using SONY AME Technology Structure of AME Protective Layer Lubricant Magnetic Layer Effect of Protective Layer Output[dB] AME Non-Protective Back Coating Base Film Still Time[H] 1.0E+00 AIT Short Shuttle (Write / Read both) Environment : 23deg.C/55%R.H. Drive:SDX-500C Media:SDX2-50C Superb durability BER 1.0E E E E E Pass

10 Application Data NON. CONSUMER ME A-ME AIT Mammoth NON. CONSUMER Hi8 Editor DVCAM Video CONSUMER Hi8ME Audio NON. CONSUMER CONSUMER NT DTR SONY AME Tape Total Shipment: Over 200 Million Cartridges (DV60 equivalent)

11 AIT AME AIT Advanced Intelligent Tape Data Cartridge: The Next Generation Storage Solution High density recording, High Durability with using DLC Protective layer High-Capacity and compact SDX-100C offer 100GB, less than 40% of the size of a half-inch single reel Cartiridge of equivalent capasity R-MIC(Remote Memory In Cassette) SDX3-100C and SDX2-50W cartridges feature the newly developed non-contact R-MIC(Remote Memory In Cassette) system, in which IC-card memory technology is used to enable faster and easier control

12 AIT Specification) AIT-3 AIT-2 100GB 12MB/sec Aramid(230m) 50GB 6MB/sec Aramid(230m) 35GB 6MB/sec PET(170m AIT-1 25GB 3MB/sec PET(170 35GB 4MB/sec Aramid(230m)

13 AIT AIT Roadmap Area Density [Gbpsi] Mbpsi AIT- 2 50GB 11.5Gbpsi 6.5Gbpsi Sony s Lab 720Mbpsi AIT GB 1.4Gbpsi AIT- 4 AIT GB 2.8Gbpsi AIT GB 5.6Gbpsi 800GB

14 AIT WORM Secure WORM media with updated R-MIC AIT-2 & 3 WORM is compliant with SEC Regulation 17 CFR Specially a-4 coded red color (A - Lid) and logo Drive does not allow rewriting of existing data Drive does allow appending onto unwritten portion of tape Media does not allow reformatting Compliance: SEC Regulation 17 CFR a-4

15 S-AIT Applied AIT proven media technology Tape design of S-AIT1 is basically same as AIT-3 media DLC Protective layer gives high durability Optimum surface design for higher recording density and durability 5um Low friction lubricant for smooth surface Achievement of low head wear 8mm to ½ inch Precision Technology from Professional Media SEM Images of Tape Edge

16 S-AIT Specifications Capacity 500GB / 1.3TB (Compressed) Transfer Rate:30MB/s / 78Mb/s(Compressed) AME tape 600m x ½ Single Real 105.4(W) x 21.5(H) x (D)mm S-AIT Tape Technology Achieved High Capacity with High Durability and Reliability Applied Proven Sony AME Technology Roadmap can be extended to 10TB per cartridge Demonstrated 11.5Gbit/in2 Areal Density with MR/GMR Head and AME Tape Technology We are in process to introduce WORM media.

17 S-AIT Roadmap Area Density [Gbpsi] Mbpsi AIT Gbpsi 6.5Gbpsi Sony s Lab 720Mbpsi AIT- 3 S-AIT1 500GB 1.4Gbpsi AIT- 4 S-AIT2 1TB 2.8Gbpsi AIT- 5 S-AIT3 2TB 5.6Gbpsi AIT- 6 S-AIT4 4TB 10TB

18 ME Technologies:

19 ME Technologies:Demo. ME Tape Technology for MR/GMR Heads Tape/Head/System : Total Solution Demonstration using GMR Heads Sony s Advantage Highest Magnetic Recording Density of Tape Recording!

20 Migration&future Technologies

21 Bi-directional recording AME Tape for Linear Recording System AME Tape can be used with Linear Recording System Possible Solutions for the different performance between forward and reverse directions Adjust Equalizer for each direction Dual Magnetic layers with opposite evaporation directions Herringbone Structure) Linear System Helical Scan System

22 Bi-directional recording AME Sample Data Sheet

23 Bi-directional recording Frequency Response Frequency dependence of signal amplitude signal amplitude [dbm] ME001 ME001 (reverse) ME002 ME002 (reverse) Frequency [MHz]

24 Conventional Double Layer A-ME Characteristics 80nm 80nm Regular Double Layer For Helical Scan Forward Direction Reverse Direction

25 Herringbone Layer A-ME Characteristics 30nm Herringbone Double Layer For Linear 60nm Forward Direction Reverse Direction

26 Summary AME s Diamond-Like Carbon (DLC) provides the extraordinary durability and reliability characteristics of headlife(50,000hours) and media use(30,000pass) Double layer structure provides low noise, high output and high resolution media In order to achieve high capacity and high data integrity, AIT uses only AME tape technology, which provides the exceptional capacity and head/media reliability of AIT products AME tape continues to be one of the key enable technologies for a S-AIT and store up to 500GB of uncompressed data on a single-reel, half-inch tape cartiridge To achieve a migration of AIT and S-AIT we investigated a core technology such as ME tapes for MR/GMR head and high Hc media By using a herringbone structure, ME tapes can be used with linear recording system

27 Thank you for your attention!