Patent ID: 7522512
Filing Date: 2009-04-21
Classification: B82Y,G11B

Abstract:
1. A method of storing and reading data, comprising: storing data by forming permanent indents by thermomechanically activating a preceramic polymer, that is on a substrate, via a chemical reaction that transforms the polymer through a permanent phase change into a hardened, ceramic material, wherein the chemical reaction is activated with a prescribed activation energy supplied by heat and pressure applied by a nanoscale probe tip; reading the data with the nanoscale probe tip by obtaining a topographical signal during readout of the bits; reading the data with the nanoscale probe tip, wherein both the substrate and the locally-transformed ceramic material are conducting, by recording the varying electrical resistance measured through a tip-sample contact as the nanoscale probe tip slides along the surface; wherein a separate surface layer formed over the preceramic material comprising a polymeric thin film with or without cross-linking protects the probe tip during both writing and readout.