Patent · US Expired

Integrated circuit device having non-linear active area pillars

US7224020B2 · kind B2 · utility

46Cited by
2References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 23, 2005
Grant dateMay 29, 2007
Priority date
Expiry dateNov 23, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/982

Abstract

An integrated circuit device having non-linear active area pillars. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a conductive layer to form a channel through the pillars. The pillars are patterned to form non-linear active area lines having angled segments. The conductive layer is patterned to form word lines that intersect the active area lines at the angled segments.

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