- 专利标题: Test method of semiconductor memory device and semiconductor memory system transferring fail address data from a volatile to a non-volatile memory array using an error-correction code engine
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申请号: US14462843申请日: 2014-08-19
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公开(公告)号: US09747998B2公开(公告)日: 2017-08-29
- 发明人: Sua Kim , Dongsoo Kang , Chulwoo Park , Jun Hee Yoo , Hak-Soo Yu , Jaeyoun Youn , Sung Hyun Lee , Jinsu Jung , Hyojin Choi
- 申请人: Samsung Electronics Co., Ltd.
- 申请人地址: KR Gyeonggi-Do
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Gyeonggi-Do
- 代理机构: Harness, Dickey & Pierce, PLC
- 优先权: KR10-2013-0147480 20131129
- 主分类号: G11C17/16
- IPC分类号: G11C17/16 ; G11C29/02 ; G11C29/42 ; G11C29/44 ; G11C17/18
摘要:
A test method of the semiconductor memory device including a memory cell array and an anti-fuse array includes detecting failed cells included in the memory cell array; determining a fail address corresponding to the detected failed cells; storing the determined fail address in a first region of the memory cell array; and reading the fail address stored in the first region to program the read fail address in the anti-fuse array. According to the test method of a semiconductor memory device and the semiconductor memory system, since the test operation can be performed without an additional memory for storing an address, the semiconductor memory device and the test circuit can be embodied by a small area.
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