Chemical labeling of the surfaces of solids on an atomic scale, and the storage of information units in the atomic range

US5265046A · kind A · utility

Assignee

• BASF SE

Inventors

• Harald Fuchs · Eisenberg (Pfalz), DE
• Thomas Schimmel · Karlsruhe, DE

Key dates

• Filing date: Dec 30, 1991
• Grant date: Nov 23, 1993
• Expiry date: Dec 30, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/857
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process useful for the reversible storage of information units involves the targeted, positionally selective and time-stable labeling of individual atomic positions or groups of such positions on the surface of a solid by chemical reaction with foreign atoms or molecules or by chemisorption, with the lateral atomic order of the surface in each case being retained, even on a local level.