Table 1 Performance comparison of various probe memories [121]
Phase-change | Magnetic | Thermomech | Ferroelectric | |
|---|---|---|---|---|
Density | 3.3 Tb/in2 | 60 Gb/in2 | 4.0 Tb/in2 | 4.0 Tb/in2 |
Est. Max. density | ≈10 Tb/in2 | ≈100 Tb/in2 | ≈10 Tb/in2 | >10 Tb/in2 |
Read speed per probe | 50 Mb s−1 | <10 b/s | 40 kb s−1 | 2 Mb s−1 |
Write speed per probe | 50 Mb s−1 | <10 b/s | 1 Mb s−1 | 50 kb s−1 |
Travel per probe | 2.5 m | 0.5 m | 750 m | 5000 m |