Patent · US Expired

Capacitor including a dielectric layer having an inhomogeneous crystalline region and method of fabricating the same

US7002788B2 · kind B2 · utility

15Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 11, 2005
Grant dateFeb 21, 2006
Priority date
Expiry dateJan 11, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D1/694
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

In a capacitor, and a method of fabricating the same, the capacitor includes a lower electrode, a dielectric layer on the lower electrode, and an upper electrode on the dielectric layer, wherein the dielectric layer includes a lower dielectric region contacting the lower electrode, an upper dielectric region contacting the upper electrode, and at least one middle dielectric region between the lower dielectric region and the upper dielectric region, the at least one middle dielectric region having a less crystalline region than both the lower dielectric region and the upper dielectric region.

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