Patent Number: 6,166,980

Title: Refresh controller in semiconductor memory

Abstract: Semiconductor memory includes a plurality of cell blocks, with each cell block including a plurality of memory cells. The refresh controller refreshes a refresh defect cell in one of the cell blocks when a memory cell in a different one of the cell blocks and designated by a same address as the refresh defect cell is refreshed.

Inventors: Chun; Jun-Hyun (Cheongju, KR)

Assignee: Hyundai Electronics Ind., Co., Ltd.

International Classification: G11C 11/406 (20060101); G11C 007/00 ()

Expiration Date: 12/26/2017