Patent · US Active

Method of forming germanium antimony tellurium film

US12431351B2 · kind B2 · utility

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6References
20Claims
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Key dates

Filing dateJan 10, 2023
Grant dateSep 30, 2025
Priority date
Expiry dateMar 23, 2044

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10B63/84
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A method of forming a germanium antimony tellurium (GeSbTe) layer includes forming a germanium antimony (GeSb) layer by repeatedly performing a GeSb supercycle; and forming the GeSbTe layer by performing a tellurization operation on the GeSb layer, wherein the GeSb supercycle includes performing at least one GeSb cycle; and performing at least one Sb cycle, the GeSbTe has a composition of Ge2Sb2+aTe5+b, in which a and b satisfy the following relations: −0.2<a<0.2 and −0.5<b<0.5.

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