KR970051446A - Redundancy Roo Decoder Circuit - Google Patents
Redundancy Roo Decoder Circuit Download PDFInfo
- Publication number
- KR970051446A KR970051446A KR1019950066143A KR19950066143A KR970051446A KR 970051446 A KR970051446 A KR 970051446A KR 1019950066143 A KR1019950066143 A KR 1019950066143A KR 19950066143 A KR19950066143 A KR 19950066143A KR 970051446 A KR970051446 A KR 970051446A
- Authority
- KR
- South Korea
- Prior art keywords
- block
- signal
- decoder
- word line
- redundancy
- Prior art date
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- Dram (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
Abstract
본 발명은 반도체 기억 장치의 리던던시 로오 디코더 회로에관한 것으로, 결함된 정상 워드 라인을 리페어함에 있어서 퓨즈 박스의 수를 늘리지 않고도 한 블럭에서 최대 4개까지 리페어어가 가능하도록, 결합된 정상 워드 라인이 있는 블럭 제1블럭인지 제2블럭인지를 선택하기 위한 신호를 출력하는 블럭선수단과, 상기 블럭선 택수단의 출력 신호와 리페어 인에이블 신호 및 로오 어데레스에 의해 상기 제1블럭 및 제1블럭의 스페어 워드라인을 선택하기 위한 출력하는 4개의 주 디코더 주단과 상기 주 디코더 수단의 출력 신호에 의해 선택된 스페어 워드 라인으로 고전위를 공급한 4개의 부 디코더 수단을 구비하여 리페어 효율을 증대시켰다.The present invention relates to a redundancy row decoder circuit of a semiconductor memory device, in which there is a combined normal word line for repairing up to four blocks in one block without increasing the number of fuse boxes in repairing a defective normal word line. A block selecting means for outputting a signal for selecting whether the block is a first block or a second block, and a spare of the first block and the first block by an output signal of the block selecting means, a repair enable signal and a row address; The repair efficiency was increased by including four main decoder main stages for outputting word lines and four sub decoder means for supplying high potentials to the spare word lines selected by the output signal of the main decoder means.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명의 일실시예에 의한 리던던시 로오 디코더 회로도.2 is a redundancy row decoder circuit diagram according to an embodiment of the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950066143A KR970051446A (en) | 1995-12-29 | 1995-12-29 | Redundancy Roo Decoder Circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950066143A KR970051446A (en) | 1995-12-29 | 1995-12-29 | Redundancy Roo Decoder Circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970051446A true KR970051446A (en) | 1997-07-29 |
Family
ID=66637141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950066143A KR970051446A (en) | 1995-12-29 | 1995-12-29 | Redundancy Roo Decoder Circuit |
Country Status (1)
Country | Link |
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KR (1) | KR970051446A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100546176B1 (en) * | 1998-12-30 | 2006-04-12 | 주식회사 하이닉스반도체 | Redundancy Circuit |
KR100546175B1 (en) * | 1998-10-28 | 2006-04-14 | 주식회사 하이닉스반도체 | Roo Repair Device |
-
1995
- 1995-12-29 KR KR1019950066143A patent/KR970051446A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100546175B1 (en) * | 1998-10-28 | 2006-04-14 | 주식회사 하이닉스반도체 | Roo Repair Device |
KR100546176B1 (en) * | 1998-12-30 | 2006-04-12 | 주식회사 하이닉스반도체 | Redundancy Circuit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |