Scaling the Areal Density Mountain Dave Anderson Seagate
Recording Technology Progression - ASTC
Challenges to Higher Capacity Drives Rdr2 Rdr1 100 nm Thermal Stability Writer/Reader/HMS Scalability Fixed Form Factor 3
Innovative Technologies HDMR He SMR PMR/CMR TDMR HAMR Heated Dot Heat Assisted Shingled Perpendicular 2D Magnetic Helium Filled Magnetic Magnetic Magnetic Magnetic Recording Hard Drives Recording Recording Recording Recording AD Up to ~1.0 Tb/in 2 ~5.0 to 10.0 AD ~1.2 to 4.0 Product Tb/in 2 AD Currently Tb/in 2 Current Shipping in Integration 2016 Shipping Mainstream Initial Product Product various markets - 2018 Products Integration >2025 Integration 2016+
Innovative Technologies SMR He TDMR HDMR HAMR PMR/CMR Shingled 2D Magnetic Helium Filled Heat Assisted Heated Dot Perpendicular Magnetic Recording Magnetic Magnetic Magnetic Hard Drives Recording Recording Recording Recording AD Up to ~1.0 AD ~1.2 to 4.0 Tb/in 2 ~5.0 to 10.0 Product Currently Tb/in 2 Ramping Tb/in 2 AD Integration 2016 Current Shipping - 2018 Product Mainstream Initial Product Integration 2016+ Products Integration >2025
Two Dimensional Magnetic Recording (TDMR) Problem Reducing the reader width difficult Reader sees more of adjacent tracks = noise TDMR solution Read adjacent tracks Calculate interference effects and cancel out noise Longer term knowledge of adjacent tracks & clever encoding extend the areal density further by writing tracks closer and closer together Challenge: How to implement TDMR Reading multiple tracks with a single reader is too slow Multiple readers on a single head has engineering challenges 6
2D Magnetic Recording Works TDMR 2D Magnetic Recording Compatible with PMR, SMR and HAMR Product Integration 2016 - 2018 • 2 or more readers on the same track or partially on adjacent tracks Takeaways • Current areal density gains in the 5-10% range • Future work to get larger areal density gains • Also get 2x read data rate
Innovative Technologies SMR He TDMR HDMR HAMR PMR/CMR Shingled 2D Magnetic Helium Filled Heat Assisted Heated Dot Perpendicular Magnetic Recording Magnetic Magnetic Magnetic Hard Drives Recording Recording Recording Recording AD Up to ~1.0 AD ~1.2 to 4.0 Tb/in 2 ~5.0 to 10.0 Product Currently Tb/in 2 Ramping Tb/in 2 AD Integration 2016 Current Shipping - 2018 Product Mainstream Initial Product Integration 2016+ Products Integration >2025
Heat Assisted Magnetic Recording Making Significant Progress • Very stable media to extend areal density • Media is heated so it can be written. HAMR • Laser is integrated into the HAMR NFT HAMR head Heat Assisted HAMR Integrated Recording Head • Near field optics allow very Magnetic Recording narrow and sharp bits to be written. AD ~1.2 to 4.0 Tb/in 2 • Heated, written and cooled in Product Integration Laser 2016+ Diode less than a nano-second. •HAMR need for increase in areal density. Takeaways •Significant progress made, still focusing on reliability and area density.
HAMR ADC Growth and Product readiness- It Works! Integrated NFT heads Accomplishments: • ADC = +1.6 Tb/in 2 • Reliability • Integrated heads/drive ADC Demo 2015 ADC demo: 2012 1402 Gfpsi 1007 Gfpsi =2084kfci x 673 kTPI =1975kfci x 510 kTPI
Innovative Technologies SMR TDMR He HDMR HAMR PMR/CMR Shingled 2D Magnetic Heat Assisted Heated Dot Helium Filled Magnetic Perpendicular Recording Magnetic Magnetic Recording Magnetic Hard Drives Recording Recording Recording AD Up to ~1.0 Tb/in 2 AD ~1.2 to 4.0 ~5.0 to 10.0 Product Shipping in Currently Tb/in 2 Tb/in 2 AD Integration 2016 Current various markets Shipping - 2018 Mainstream Product Initial Product Products Integration 2016+ Integration >2025
Heated Dot Magnetic Recording= BPM + HAMR Continuous FePt film patterned @ 1Tdpsi to 5Tdpsi HDMR Heated Dot Magnetic Recording ~5.0 to 10.0 Tb/in 2 AD Initial Product Integration >2025 BER = -2.43 @ 1Tb/in2 Spinstand testing and drive integration • BPM:Multiple grains per bit to a single magnetic island per bit Takeaways 5 T • Demonstrated 1.5 Tdpsi Spinstand • HDMR at 5Tdpsi and beyond looks feasible
WHY HARD DISK DRIVES REMAIN ESSENTIAL
2005: Installation Pope Benedict
2013: Installation Pope Francis 2005: Installation Pope Benedict
Move Toward Mobility: Shifting the Location of Data 2010 2020 dramatic shift to the cloud 2020 HDD 62% of the storage Shipments: was shipped into the client market… 1.6 - 2 ZB 77 Exabytes 1,121 Exabytes Source: Seagate Strategic Marketing and Research 17
No Replacement for HDD Soon 2020 HDD HDDs dominate the storage market Shipments: 1.6 - 2 ZB 900 800 700 600 NAND 2020 Forecasts: < ¼ (HDD EBs) Exabytes 500 500 400 400 300 EBs 300 200 200 100 100 0 2014 2015 2016 2017 2018 2019 2020 0 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 IBS Forward Insights Gartner HDD NAND 18
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