KR930017041A - Redundancy Circuit of Semiconductor Memory Devices - Google Patents
Redundancy Circuit of Semiconductor Memory Devices Download PDFInfo
- Publication number
- KR930017041A KR930017041A KR1019920001322A KR920001322A KR930017041A KR 930017041 A KR930017041 A KR 930017041A KR 1019920001322 A KR1019920001322 A KR 1019920001322A KR 920001322 A KR920001322 A KR 920001322A KR 930017041 A KR930017041 A KR 930017041A
- Authority
- KR
- South Korea
- Prior art keywords
- source
- flash rom
- circuit
- gate
- drain
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
본 발명은 메모리 소자의 구제에 관한 것으로, 특히 플레쉬ROM(Flash ROM)을 특정 어드레스의 구제용 정보에 사용하는 ROM으로 사용하여 구제용 정보를 프로그래밍 하거나 프로그램된 특정 어드레스를 지우거나 수정할 수 있도록 하는 리던던시 회로에 관한 것이다. 이를 위하여 본 발명에서는, 리던던시 회로에 있어서, 스페어 셀선택 신호선에는 구제용 정보를 프로그래맹하기 위한 플레시ROM드레인이 연결되고, 상기 플레쉬ROM의 게이트 및 소스에는 상기 플레쉬ROM을 제어하기 위한FRPE회로가 연결되며, 상기 플레쉬ROM의 소스는 드레인이 접지되는 nMOS트랜지스터의 소스 및 게이트에 연결되며, 상기 FRPE회로의 한 단자는 어드레스 라인에 연결되어 구성되는 리던던시 회로이다.TECHNICAL FIELD The present invention relates to the relief of memory devices, and in particular, redundancy for using flash ROM as a ROM used for relief information of a specific address so that the relief information can be programmed or a programmed specific address can be erased or modified. It is about a circuit. To this end, in the present invention, in the redundancy circuit, a flash ROM drain for programming rescue information is connected to a spare cell selection signal line, and a FRPE circuit for controlling the flash ROM is provided at a gate and a source of the flash ROM. The source of the flash ROM is connected to a source and a gate of an nMOS transistor whose drain is grounded, and one terminal of the FRPE circuit is a redundancy circuit configured to be connected to an address line.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 플레쉬 ROM을 갖는 리던던시 회로도.4 is a redundancy circuit diagram with flash ROM.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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KR930017041A true KR930017041A (en) | 1993-08-30 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100763122B1 (en) * | 2005-03-31 | 2007-10-04 | 주식회사 하이닉스반도체 | Repair control circuit of semiconductor memory device with reduced size |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100763122B1 (en) * | 2005-03-31 | 2007-10-04 | 주식회사 하이닉스반도체 | Repair control circuit of semiconductor memory device with reduced size |
US7333375B2 (en) | 2005-03-31 | 2008-02-19 | Hynix Semiconductor Inc. | Repair control circuit of semiconductor memory device with reduced size |
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