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1 7HUD6WRUªV1HDU)LHOG 5HFRUGLQJ 'U*RUGRQ.QLJKW &R)RXQGHU &KLHI7HFKQLFDO2IILFHU 7HUD6WRU&RUSRUDWLRQ Page 1
2 7HUD6WRU&RUSRUDWLRQ%DFNJURXQG l TeraStor founded December 1995» Jim McCoy - CEO (founder of Maxtor, co-founder of Quantum)» Gordon Knight - CTO (founder of Maxoptix & Optimem)» Bill Dobbin - CFO l Initial Seed Funding - February 1996» Demonstrate Near Field technology June 1996 l First Round Financing - July 1996» Begin full staffing of engineering team» Initiate product development l Over $85M investment to date Page 2
3 7HUD6WRU0LVVLRQ To deliver a new class of storage products, providing the highest areal density, based on near-field recording and the solid immersion lens. To develop and introduce products with target capacities approaching 20 gigabytes per disk surface. To develop product families with both removable and fixed media. Page 3
4 1HDU)LHOG5HFRUGLQJ7HFKQRORJ\(YROXWLRQ Optical flying head/first surface recording» Basic technology developed by Digital. Extensive patent portfolio (26 patents)» Patents acquired by Quantum as part of their acquisition of the Digital storage business» Co-exclusive patent rights granted to TeraStor by Quantum Solid Immersion Lens (SIL) technology» Basic technology developed and patented at Stanford University» Exclusive patent rights granted to TeraStor by Stanford Page 4
5 &RQYHQWLRQDO2SWLFV2YHUYLHZ An optical lens bends light according to the index of refraction (n) of the lens material Numerical Aperture, which limits the focused spot diameter is defined as: NA = n Sin θ max, which means NA 1 (in air) The highest commercially practical NA achieved to date is.65, common magneto-optical drives use NA.55 The diameter of a focused spot of light is dependent on the wavelength of light and the NA of the lens and is defined as: d.5λ/na Page 5
6 1XPHULFDO$SHUWXUHV Page 6
7 1HDUILHOG2SWLFV Spot Diameter without SIL.5λ/NA Light entering SIL is not bent but is slowed by a factor of n compared to air Wavelength of light in SIL = λ/n Spot diameter in SIL.5λ/(NA n)» Diameter reduced by factor of n 1XPHULFDO$SHUWXUHRI2EMHFWLYH/HQV 1$ 'LVN6XUIDFH 1RUPDO,QFLGHQFH$QJOH 6,/,QGH[RI5HIUDFWLRQ Q 'LDPHWHURI6SRW λ λq /LJKW:DYHOHQJWK Page 7
8 (YDQHVFHQW&RXSOLQJ Provides energy transfer from the SIL to the surface of the media» Unlike conventional magneto-optical products, the laser is not focused on the surface of the media, instead it is focused at the bottom of the SIL Well understood from Near-field Scanning Optical Microscopy Allows image of small spot inside SIL to be pulled to the surface of the media. Page 8
9 (YDQHVFHQW)LHOGV )RFXVHG6SRW 6XUIDFHRI0HGLD %RWWRPRI6,/ (YDQHVFHQW%RXQGDU\ Page 9
10 1)5&RPSRQHQWV Solid Immersion Lens» Based on liquid immersion microscopy» Allows Numerical Aperture of much greater than 1 by using high index of refraction material» Shape of the SIL allow for tighter focus of light spot First Surface Recording» Places recording films in near-field proximity to the head Flying Optical Head» Provides tight focus tolerances within the near-field and eliminates focus servo found in conventional magnetooptical products Crescent Recording» Allows for bit densities of > 200,000 bits per inch with SIL Page 10
11 $UFKLWHFWXUHRI7HUD6WRUªV 1HDU)LHOG5HFRUGLQJ7HFKQRORJ\ Laser Beam Folding Mirror Fixed Optics Module Objective Lens Air gap (fly ht.) <6µ avg. SIL Lens Slider Stand Off Magnetic Coils Evanescent Coupling Plastic Substrate Media Page 11
12 5HFRUGLQJ$UHD&RPSDUHG Magnetic Optical NFR Track center 2.5 micron 0.3 micron 0.6 micron Page 12
13 &UHVFHQW5HFRUGLQJ,QFUHDVHV /LQHDU'HQVLW\ Traditional Optical Crescent Recording Track direction Vertically recorded spots Page 13
14 1)50HGLD Uses conventional MO recording films Stamped plastic substrate and first surface recording allows media costs to be competitive with tape Vertical magnetic domains allow for smaller spots than magnetic recording Proven domain stability, no super-paramagnetic effects» Magnetic recording domains become unstable at room temperature somewhere between 20Gb/in 2 and 40Gb/in 2» Magneto-optical media has been proven stable at densities beyond the superparamagnetic limit (AT&T 1992) Long shelf life approaching that of conventional magnetooptical products Infinite rewrite passes, unlike phase change media Page 14
15 7HUD6WRU'LVN6WUXFWXUH Land Groove MO recording films Plastic single sided injection molded disk Page 15
16 0DJQHWLF'RPDLQV 0)0,PDJH $)0,PDJH Page 16
17 7HUD6WRU'LVN6WUXFWXUH Traditional MO Near Field Recording Lube Plastic Substrate Dielectric Magneto/Optical Storage Layer Dielectric Reflector Overcoat Dielectric Magneto/Optical Storage Layer Dielectric Reflector Plastic Substrate Page 17
18 7KH7ZR6WDJH6HUYR Combines movements of a primary actuator and laser scanning Radial run out taken out with rotary actuator Instantaneous near track seeks with galvanometer mirror High bandwidth micro-mirror galvanometer allows for order of magnitude increase in track densities over magnetic recording Improved track acquisition capability Improved shock resilience Page 18
19 7HUD6WRU6HUYR'HVLJQ Page 19
20 7HUD6WRU3URGXFW+LJKOLJKWV Page 20 High capacity removable cartridge drive» target 20GB capacity» Removable NFR media» near hard disk performance» target availability Q498 Announced automation solutions coming from:» ATL Products» Exabyte» DISC» Spectra Logic» Overland Data» Plasmon IDE» Others to follow Storage Management software commitments from 17 UNIX, NT, and Novell backup and nearline application developers
21 )HDWXUHVRI7HUD6WRU1)5 > 10Gb/in 2 with red laser for first product ~ 20 GB per disk surface for first product Removable and fixed products will be developed Desktop hard drive performance Known growth path to >100Gb/in 2» different SIL material and shapes» Shorter wavelength laser Areal density not limited by superparamagnetic effects Page 21
22 2SWLFDO&RPSDULVRQV Conventional* Near-Field Blue Laser Blue laser Magneto-Optical Magneto-Optical Conventional* Near-Field Laser Wavelength 685 nm 685 nm 410nm 410nm Numerical Aperture Index of refraction of SIL n/a 2 n/a 3** Potential Spot Size 0.53 micron 0.26 micron 0.29 micron.07 micron Maximum Areal Density 4Gb/in 2 16Gb/in2 13Gb/in2 238Gb/in2 * Conventional optics products include CD, DVD, ASMO, MO, and OAW ** SuperSIL shape Page 22
23 7HFKQRORJ\&RPSDULVRQ Near-Field MO Far Field MO Phase Change Magnetic Recording Mechanism Vertical Magnetic Media Vertical Magnetic Media Amorpous Crystal Molecular change In-plane Magnetic Media Cyclability Data Rate Areal Density Infinite >160 Mb/sec > 10 Gb/in 2 today => >200 Gb/in 2 Infinite ~48 Mb/sec ~ 1Gb/in 2 10,000 to 500,000 cycles ~ 24 Mb/sec today (slow process) Infinite > 200 Mb/sec today today => <20 Gb/in 2 ~ 1Gb/in 2 today => <15 Gb/in 2 > 3Gb/in 2 today => < 40 Gb/in 2 Page 23
24 &RQFOXVLRQV Near-field recording with a Solid Immersion Lens combines the best advantages of magnetic and optical recording» many components from HDD vendors» Low cost plastic media Near-field recording is practical today Conventional far-field optical recording has fallen behind magnetic recording and cannot keep up (even for DVD-RAM, ASMO, and OAW) NFR technology can maintain a significant areal density advantage over magnetic recording for both fixed and removable media products Page 24
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