KR100223264B1 - 플래쉬 메모리 셀의 소거확인 방법 - Google Patents
플래쉬 메모리 셀의 소거확인 방법 Download PDFInfo
- Publication number
- KR100223264B1 KR100223264B1 KR1019960025546A KR19960025546A KR100223264B1 KR 100223264 B1 KR100223264 B1 KR 100223264B1 KR 1019960025546 A KR1019960025546 A KR 1019960025546A KR 19960025546 A KR19960025546 A KR 19960025546A KR 100223264 B1 KR100223264 B1 KR 100223264B1
- Authority
- KR
- South Korea
- Prior art keywords
- memory cell
- erase
- data
- circuit
- address
- Prior art date
Links
- 238000012790 confirmation Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004904 shortening Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/34—Determination of programming status, e.g. threshold voltage, overprogramming or underprogramming, retention
- G11C16/3436—Arrangements for verifying correct programming or erasure
- G11C16/344—Arrangements for verifying correct erasure or for detecting overerased cells
- G11C16/3445—Circuits or methods to verify correct erasure of nonvolatile memory cells
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/08—Address circuits; Decoders; Word-line control circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/26—Sensing or reading circuits; Data output circuits
Landscapes
- Read Only Memory (AREA)
Abstract
Description
Claims (1)
- 어드레스 패드를 통해 어드레스를 입력으로 하는 어드레스 버퍼와, 상기 어드레스를 입력으로 하는 어드레스 버퍼의 출력에 따라 동작되는 워드라인 디코더 및 비트라인 디코더와, 상기 워드라인 디코더 및 비트라인 디코더의 출력에 따라 어느 한 셀이 선택되는 메모리셀 블럭과, 상기 메모리셀 블럭에서 선택된 어느 한 셀의 데이터를 독출하기 위한 센스앰프와, 상기 센스앰프에 의해 독출된 데이터와 칩 내부에 설정된 메모리셀의 소거 확인 데이터를 비교하기 위한 데이터 비교회로와, 상기 데이터 비교회로에서 비교된 데이터를 데이터 입출력 회로를 통해 출력하기 위한 출력 버퍼 및 멀티플렉스 회로를 포함하여 구성된 플래쉬 메모리셀의 소거 확인 회로를 이용한 메모리셀의 소거 확인 방법에 있어서,상기 데이터 비교회로에서 메모리셀의 소거 상태가 정상적으로 확인되는 시간을 주기호 하는 로컬-클럭을 사용하여 또 다른 메모리셀의 소거 확인 동작이 이루어지도록 하는 것을 특징으로 하는 플래쉬 메모리셀의 소거 확인 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960025546A KR100223264B1 (ko) | 1996-06-29 | 1996-06-29 | 플래쉬 메모리 셀의 소거확인 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960025546A KR100223264B1 (ko) | 1996-06-29 | 1996-06-29 | 플래쉬 메모리 셀의 소거확인 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR980005025A KR980005025A (ko) | 1998-03-30 |
KR100223264B1 true KR100223264B1 (ko) | 1999-10-15 |
Family
ID=19464582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960025546A KR100223264B1 (ko) | 1996-06-29 | 1996-06-29 | 플래쉬 메모리 셀의 소거확인 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100223264B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980052496A (ko) * | 1996-12-24 | 1998-09-25 | 김영환 | 플래쉬 메모리셀의 과소거 된 셀 확인 방법 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100390945B1 (ko) * | 2000-12-29 | 2003-07-10 | 주식회사 하이닉스반도체 | 플래쉬 메모리 셀의 소거 속도 측정 회로 |
-
1996
- 1996-06-29 KR KR1019960025546A patent/KR100223264B1/ko not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980052496A (ko) * | 1996-12-24 | 1998-09-25 | 김영환 | 플래쉬 메모리셀의 과소거 된 셀 확인 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR980005025A (ko) | 1998-03-30 |
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