Patent · US Expired

Shape memory alloy recording medium, storage devices based thereon, and method for using these storage devices

US6084849A · kind A · utility

66Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 7, 1998
Grant dateJul 4, 2000
Priority date
Expiry dateJan 7, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S977/856
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

The present invention concerns a storage medium for scanning probe storage devices. This storage medium comprises a substrate (20) carrying a shape memory alloy layer (24). The shape memory alloy layer (24) is chosen such that an indent (23) can be formed by mechanically deforming said shape memory alloy layer (24), if a local probe (21, 22) of said scanning probe system exerts pressure on said alloy layer (24). An indent (23) can be removed by locally heating said shape memory alloy layer (24) to its transformation temperature (Tc) or above such that the shape memory alloy returns to its Martensite form.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.