Advances in Tribology / 2013 / Article / Tab 2

Review Article

The Head-Disk Interface Roadmap to an Areal Density of Tbit/in2

Table 2

HMS breakdown scenarios for 4 Tb/in2.

HMS Budget 1 Tb/in² 4 Tb/in²HMS adder
ComponentsINSIC 2010Target HMS by ~2014 INSIC 2010Target HMS by ~2020-21 (effect of HAMR, BPM)
ComponentHiLoMedium riskHigh riskBPMHAMR

Disc overcoat
Disk lubricant
Head overcoat


The HMS adder columns corresponding to HAMR and BPM will be discussed in Section 4.