William P. King, Thomas W. Kenny, et al.
Applied Physics Letters
A scalable CMOS sensing architecture for highly parallel readback of signals from large two-dimensional local probe arrays for AFM(atomic force microscope)-based data storage is presented. The main challenge to the detection scheme comes from the fact that information signals are superimposed on carrier signals that are more than three orders of magnitude higher. In addition, local memories are needed because of carrier variations, and parallel operation requires local data conversion. Therefore, analog-to-digital conversion of the probe signals is performed locally in a two-dimensional scheme fitting the probe array. A scalable prototype array fabricated in a 0.35 μm CMOS technology demonstrates the required functionality and performance for future large arrays of 32 × 32 or more AFM cantilevers. © 2002 Non IEEE.
William P. King, Thomas W. Kenny, et al.
Applied Physics Letters
Mark A. Lantz, Gerd K. Binnig, et al.
Nanotechnology
Neric Fong, Calvin Plett, et al.
ESSCIRC 2002
Graham L. W. Cross, Michel Despont, et al.
Materials Research Society Symposium-Proceedings