Carl CheSamsung Information Systems America

Dec. 7, IDEMA PMR Symposium

Carl CheCarl CheSamsung Information Systems AmericaSamsung Information Systems America

Dec. 7, IDEMA PMR SymposiumDec. 7, IDEMA PMR Symposium

22 PMR IntegrationsPMR Integrations

33

Samsung HDD FocusSamsung HDD Focus11

On the fast trackOn the fast track

Samsung HDD HistorySamsung HDD History

Started HDD BusinessStarted HDD Business

Established R&D Center in San JoseEstablished R&D Center in San Jose

Started Production in Gumi FactoryStarted Production in Gumi Factory

Launched 2.5” HDD to Worldwide MarketLaunched 2.5” HDD to Worldwide Market

Launched 300GB HDD, SATA 3.0 GbpsLaunched 300GB HDD, SATA 3.0 Gbps

Reached 5 Million Monthly ShipmentReached 5 Million Monthly Shipment

Started Major OEM BusinessStarted Major OEM Business

Reached 10 Million Units / YearReached 10 Million Units / Year

19961996

19861986

20012001

20052005

20042004

20062006

19891989

19991999

Highest PMR AD DemoHighest PMR AD Highest PMR AD DemoDemo

2.5” PMR HDD Product2.52.5”” PMR HDD ProductPMR HDD Product

Samsung HDD ProductSamsung HDD Product

From Hyung Lee’s Technology Roadmap 10/06

1

10

100

1000

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

YEAR

Are

al D

ensi

ty (G

b/sq

.in)

LMR Demos

PMR Demos

Samsung 3.5"

Samsung 2.5"

TDK 437Gb/in 2 Demo using DTR/CPP

Seagate 421Gb/in 2 Demo using PMR/TuMR

INSIC/EHDR 1Tb/in 2 Demo

SISA/SAIT 500Gb/indemo using DTR

By 10/31/2006

1

10

100

1000

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

YEAR

Are

al D

ensi

ty (G

b/sq

.in)

LMR Demos

PMR Demos

Samsung 3.5"

Samsung 2.5"

TDK 437Gb/in 2 Demo using DTR/CPP

Seagate 421Gb/in 2 Demo using PMR/TuMR

INSIC/EHDR 1Tb/in 2 Demo

By 10/31/2006

TuMRTuMRTuMRMR/GMRMR/GMRMR/GMR

PMRPMRPMRLMRLMRLMR

TFTFTF

22 PMR IntegrationsPMR Integrations

33 On the fast trackOn the fast track

Samsung HDD FocusSamsung HDD Focus11

Advantages of PMRAdvantages of PMR

BERBERHigher Linear Density is achieved

Larger signal amplitudes from mediaLess media noise penalty at HFHF write quality is better

Higher Linear Density is achievedHigher Linear Density is achievedLarger signal amplitudes from mediaLarger signal amplitudes from mediaLess media noise penalty at HFLess media noise penalty at HFHF write quality is betterHF write quality is better

StabilityStability Smaller Grains are possibleLarger volume due to vertical heightLess Demag field at high frequency patternsSUL effects

Smaller Grains are possibleSmaller Grains are possibleLarger volume due to vertical heightLarger volume due to vertical heightLess Less DemagDemag field at high frequency patternsfield at high frequency patternsSUL effectsSUL effects

WritabilityWritability Flux is enhanced with SULLarger write field for H/M optimization trade offEasier to write HF than LFRoom for TPI increase (narrower TP)

Flux is enhanced with SULFlux is enhanced with SULLarger write field for H/M optimization trade offLarger write field for H/M optimization trade offEasier to write HF than LFEasier to write HF than LFRoom for TPI increase (narrower TP)Room for TPI increase (narrower TP)

Head & Media MatchingHead & Media Matching

Writer OptimizationWriter OptimizationWriter Optimization Media MatchingMedia MatchingMedia Matching

y = 3.1909x - 8.401R2 = 0.7647

y = 0.7478x + 8.1378R2 = 0.1194

4

6

8

10

12

14

16

4.5 4.75 5 5.25 5.5 5.75 6 6.25 6.5 6.75 7

MWW (uin)

SpiS

NR (d

B)

y = 3.1909x - 8.401R2 = 0.7647

y = 0.7478x + 8.1378R2 = 0.1194

4

6

8

10

12

14

16

4.5 4.75 5 5.25 5.5 5.75 6 6.25 6.5 6.75 7

MWW (uin)

SpiS

NR (d

B)

y = -0.0008x + 9.3467R2 = 0.5827

4.0

5.0

6.0

7.0

8.0

3500 4000 4500 5000 5500

Coercivity (Oe)M

WW

(uin

)

y = -0.0008x + 9.3467R2 = 0.5827

4.0

5.0

6.0

7.0

8.0

3500 4000 4500 5000 5500

Coercivity (Oe)M

WW

(uin

)

Maximize Areal DensityMinimize Stray field Erasure and ATE/ATIMeet reliability requirement

Maximize Areal DensityMaximize Areal DensityMinimize Stray field Erasure and ATE/ATIMinimize Stray field Erasure and ATE/ATIMeet reliability requirementMeet reliability requirement

Recording Sub-system ImpactRecording Sub-system Impact

Preamp OptimizationPreamp OptimizationPreamp Optimization Easier to write HF Easier to write HF

Risetime is more important than overshot Risetime is more important than overshot

OSA OSD

0 8 15 2 8 15

1.1850

1.1875

1.1900

1.1925

1.1950

T50

OSA OSD

0 8 15 2 8 15

1.1850

1.1875

1.1900

1.1925

1.1950

T50

T50

OSA OSD

0 8 15 2 8 15

13.0

13.2

13.4

13.6

13.8

SNR

OSA OSD

0 8 15 2 8 15

13.0

13.2

13.4

13.6

13.8

SNR

SNR

OSA OSD

0 8 15 2 8 15

6.300

6.325

6.350

6.375

6.400

MW

W

OSA OSD

0 8 15 2 8 15

6.300

6.325

6.350

6.375

6.400

MW

W

MWW

Recording Sub-system ImpactRecording Sub-system Impact

Channel OptimizationChannel OptimizationChannel Optimization

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5

Normalized Frequency(MHz)

Nor

mal

ized

Am

plitu

de(V

)

LMR-SignalEPR4PMR-SignalFull DC Target for PMR

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5

Normalized Frequency(MHz)

Nor

mal

ized

Am

plitu

de(V

)

LMR-SignalEPR4PMR-SignalFull DC Target for PMR

Target Target

200 400 600 800 1000 1200 1400 1600 1800

0

0.02

0.04

0.06

0.08

Nonlinear DistortionsNonlinear Distortions

BaselineWaving

BaselineWaving

HDD System IntegrationHDD System Integration

Servo Servo Servo

Avoid DCAvoid DC

Utilize DCUtilize DC

Burn-inBurnBurn--inin

Bevel AngleBevel Angle

DefectsDefects

“Old” Concerns:“Old” Concerns:

Pole ErasurePole ErasurePole Erasure Pass million writes

Stray FieldStray FieldStray Field Pass million writes

These issues are well controlled with H/M design awarenessThese issues are well controlled with H/M design awareness

Ready for the Main StageReady for the Main Stage

3.5in 250G/p3.5in 250G/p

22 PMR IntegrationsPMR Integrations

33 On the fast trackOn the fast track

Samsung HDD FocusSamsung HDD Focus11

Take advantage of the scalingTake advantage of the scaling

H/M SpacingH/M SpacingH/M Spacing

-4

-3.6

-3.2

-2.8

-2.4

-2

1 2 3 4 5 6Read clearance (nm)

BE

R

W3W4

W5W6

Linear Density: 1109 kbpi

-4

-3.6

-3.2

-2.8

-2.4

-2

1 2 3 4 5 6Read clearance (nm)

BE

R

W3W4

W5W6

Linear Density: 1109 kbpi

M edia signal and noise:

)()()(

xMxMxM

Ns +=

R ead signal:

vxttMtMth

tNtS

Nsd

mm

/))()((*)(

)()(

=+=+

W rite signal

W rite head clearance

R ead head clearance

H ead and electronics noise:

)(tN s

Equalization Equalized signal:

)(*)()(*)(*)(

)(*)(*)(

tNtftMthtf

tMthtf

s

Nd

sd

++

)(tT

)()(*)(

tMtMtT

s

N

Target:

)(*)()(*)(

tMthtNtT

sd

s

M edia signal and noise:

)()()(

xMxMxM

Ns +=

R ead signal:

vxttMtMth

tNtS

Nsd

mm

/))()((*)(

)()(

=+=+

W rite signal

W rite head clearance

R ead head clearance

H ead and electronics noise:

)(tN s

Equalization Equalized signal:

)(*)()(*)(*)(

)(*)(*)(

tNtftMthtf

tMthtf

s

Nd

sd

++

)(tT

)()(*)(

tMtMtT

s

N

Target:

)(*)()(*)(

tMthtNtT

sd

s

-6.5

-5.5

-4.5

-3.5

-2.5

-1.5

800 900 1000 1100 1200Linear Density (Kbpi)

BE

R

OffR2-W3R3-W4R4-W5R5-W6

-6.5

-5.5

-4.5

-3.5

-2.5

-1.5

800 900 1000 1100 1200Linear Density (Kbpi)

BE

R

OffR2-W3R3-W4R4-W5R5-W6

Reducing H/M magnetic spacing is criticalReducing H/M magnetic spacing is critical

Take advantage of the scalingTake advantage of the scaling

Demo and Product TPI/BPI Summary

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

50 100 150 200 250 300 350 400 450 500 550

Areal Density (Gbpsi)

Asp

ect R

atio

(BPI

/TPI

)

500

700

900

1100

1300

1500

1700

1900

2100

2300

2500

Line

ar D

ensi

ty (k

bpi)

LMR PMR BPI

T400

T500P250

300Gb(SG)

345Gb(H)

359Gb(SG)

420Gb(SG)

500Gb Target

230Gb(T)

Demo and Product TPI/BPI Summary

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

50 100 150 200 250 300 350 400 450 500 550

Areal Density (Gbpsi)

Asp

ect R

atio

(BPI

/TPI

)

500

700

900

1100

1300

1500

1700

1900

2100

2300

2500

Line

ar D

ensi

ty (k

bpi)

LMR PMR BPI

T400

T500P250

300Gb(SG)

345Gb(H)

359Gb(SG)

420Gb(SG)

500Gb Target

230Gb(T)

Reducing Aspect RatioReducing Aspect RatioReducing Aspect Ratio

TPI will increase faster than BPITPI will increase faster than BPI

H/M ImprovementH/M Improvement

Higher Amplitude Higher Amplitude Higher Amplitude

High ResolutionHigh ResolutionHigh Resolution

Reducing transition curvature

Reducing transition Reducing transition curvaturecurvature

0.00%

2.00%

4.00%

6.00%

8.00%

10.00%

12.00%

3 4 5 6 7 8 9 10

Bevel Angle (Degree)

Cap

caci

ty lo

ss in

(%)

280 @ 180 KTPI

0.00%

2.00%

4.00%

6.00%

8.00%

10.00%

12.00%

3 4 5 6 7 8 9 10

Bevel Angle (Degree)

Cap

caci

ty lo

ss in

(%)

280 @ 180 KTPI

Reducing Bevel AngleReducing Bevel AngleReducing Bevel AngleH/M Integration is criticalH/M Integration is criticalH/M Integration is critical

H/M ImprovementH/M Improvement

Media ImprovementMedia ImprovementMedia Improvement

Grain size controlGrain size controlGrain size control

Easy axisEasy axisEasy axis

IL reductionIL reductionIL reduction

SUL OptimizationSUL OptimizationSUL Optimization

COC Reduction(No Corrosion)

COC ReductionCOC Reduction(No Corrosion)(No Corrosion)

Courtesy of KomagCourtesy of Komag

New ConceptsNew ConceptsNew Concepts

Writability/StabilityWritability/StabilityWritability/Stability

Eraseband ReductionErasebandEraseband ReductionReduction

SummarySummary

PMR HDD integration challenges have been overcomePMR HDD integration challenges have been overcome

Enabling technologies for areal density increase are availableEnabling technologies for areal density increase are available

Samsung is running on the PMR racing track full speed!Samsung is running on the PMR racing track full speed!