发明名称 |
Self repair device and method thereof |
摘要 |
A self repair device may include: an electrical fuse array configured to store bit information of a failed address in a fuse; an electrical fuse controller configured to store a row address or column address corresponding to a failed bit when a failure occurs, generate a repair address by comparing a failed address inputted during a test to the address stored therein, output a rupture enable signal for controlling a rupture operation of the electrical fuse array, and output row fuse set data or column fuse set data in response to the failed address; and a row/column redundancy unit configured to perform a row redundancy or column redundancy operation in response to the row fuse set data or the column fuse set data applied from the electrical fuse array. |
申请公布号 |
US9508456(B1) |
申请公布日期 |
2016.11.29 |
申请号 |
US201514878081 |
申请日期 |
2015.10.08 |
申请人 |
SK HYNIX INC. |
发明人 |
Shim Young Bo |
分类号 |
G11C17/00;G11C29/00;G11C17/16;G11C17/18 |
主分类号 |
G11C17/00 |
代理机构 |
William Park & Associates Ltd. |
代理人 |
William Park & Associates Ltd. |
主权项 |
1. A self repair device comprising:
an electrical fuse array configured to store information of a failed address in a fuse; an electrical fuse controller configured to store a row address or column address corresponding to a failed bit when a failure occurs, generate a repair address by comparing a failed address inputted during a test to the address stored therein, output a rupture enable signal for controlling a rupture operation of the electrical fuse array, and output row fuse set data or column fuse set data in response to the failed address; and a row/column redundancy unit configured to perform a row redundancy or column redundancy operation in response to the row fuse set data or the column fuse set data applied from the electrical fuse array; wherein the electrical fuse controller is configured to control the rupture operation when the failed address is a multi-bit address in response to a multi-bit enable signal. |
地址 |
Icheon-Si KR |