Orthogonal transpose-RAM cell array architecture with alternate bit-line to bit-line contact scheme

Abstract

An orthogonal RAM cell array architecture suitable for efficient transposing is proposed, and layout and simulation results are presented. The cell is developed to adopt folded bit-line sensing scheme area-efficiently. The proposed alternate bit-line to bit-line contact scheme in the orthogonal RAM cell array architecture leads to asymmetric bit-line sensing scheme and (i, 2i) bit-line transposing scheme, and results in fast response time of the sense amplifier and low power dissipation for restoring.