Patent · US Active

Method for fabricating a DRAM capacitor

US8828836B2 · kind B2 · utility

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4References
8Claims
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Key dates

Filing dateJun 6, 2011
Grant dateSep 9, 2014
Priority date
Expiry dateJun 6, 2031

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D1/694

Abstract

A method for fabricating a dynamic random access memory (DRAM) capacitor stack is disclosed wherein the stack includes a first electrode, a dielectric layer, and a second electrode. The first electrode is formed from a conductive binary metal. A dielectric layer is formed over the first electrode. The dielectric layer is subjected to a milliseconds anneal process that serves to crystallize the dielectric material and decrease the concentration of oxygen vacancies.

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