Patent · US Active

Void free interlayer dielectric

US8614475B2 · kind B2 · utility

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7References
20Claims
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Key dates

Filing dateDec 31, 2012
Grant dateDec 24, 2013
Priority date
Expiry dateDec 31, 2032

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D84/038
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A method of manufacturing a non-volatile memory device includes forming a number of memory cells. The method also includes depositing a first dielectric layer over the memory cells, where the first dielectric layer is a conformal layer having a substantially uniform thickness. The method further includes depositing a second dielectric layer over the first dielectric layer. Together, the first and second dielectric layers form an interlayer dielectric without voids.

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