Noncomplimentary rewriting and serial-data coding scheme for shared-sense-amplifier open-bit-line DRAM

A noncomplimentary rewriting scheme is proposed for open-bit-line DRAM's adopting a shared subsense amplifier. The scheme can theoretically cancel inter-bit-line coupling noise down to zero. In order to suppress the peak in unselected word line noise, a serial-data coding scheme was also developed, This scheme can reduce unselected word-line noise by at least 50%.