发明名称 |
Operating method of memory having redundancy circuitry |
摘要 |
In a method of operating a memory circuit, which includes a plurality of memory arrays each coupled with a corresponding input/output (IO) interface and a redundancy memory page a failing address of a failing bit cell is determined. The failing address is located in a memory page of one of the memory arrays. The method further includes repairing the failing bit cell by replacing the memory page with the redundancy memory page. |
申请公布号 |
US8929137(B2) |
申请公布日期 |
2015.01.06 |
申请号 |
US201414168257 |
申请日期 |
2014.01.30 |
申请人 |
Taiwan Semiconductor Manufacturing Company, Ltd. |
发明人 |
Yang Tien-Chun;Chih Yue-Der;Liu Shang-Hsuan |
分类号 |
G11C11/34;G11C29/04;G11C16/04;G11C29/00 |
主分类号 |
G11C11/34 |
代理机构 |
Lowe Hauptman & Ham, LLP |
代理人 |
Lowe Hauptman & Ham, LLP |
主权项 |
1. A method of operating a memory circuit,
the memory circuit comprising:
a plurality of memory arrays each coupled with a corresponding input/output (IO) interface;at least one information row, anda redundancy memory page; the method comprising:
determining a failing address of a failing bit cell, wherein the failing address is located in a memory page of one of the memory arrays;registering bits of the failing address in the at least one information row, wherein the at least one information row includes a plurality of word lines; andrepairing the failing bit cell by replacing the memory page with the redundancy memory page. |
地址 |
TW |