STACK BANK TYPE SEMICONDUCTOR MEMORY APPARATUS CAPABLE OF IMPROVING ALIGNMENT MARGIN

摘要

A semiconductor memory apparatus is capable of improving the alignment margin for a bank and sufficiently ensuring a space for forming a global input/output line. The semiconductor memory apparatus includes a stack bank structure having at least two sub-banks continuously stacked without disconnection of data signal lines, and a control block arranged at one side of the stack bank structure to simultaneously control column-related signals of the sub-banks.