GB2272089B - Method for improved programming of virtual ground eprom arrays - Google Patents
Method for improved programming of virtual ground eprom arraysInfo
- Publication number
- GB2272089B GB2272089B GB9324581A GB9324581A GB2272089B GB 2272089 B GB2272089 B GB 2272089B GB 9324581 A GB9324581 A GB 9324581A GB 9324581 A GB9324581 A GB 9324581A GB 2272089 B GB2272089 B GB 2272089B
- Authority
- GB
- United Kingdom
- Prior art keywords
- virtual ground
- improved programming
- eprom arrays
- ground eprom
- arrays
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
- G11C16/3418—Disturbance prevention or evaluation; Refreshing of disturbed memory data
- G11C16/3427—Circuits or methods to prevent or reduce disturbance of the state of a memory cell when neighbouring cells are read or written
-
- 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
- G11C16/10—Programming or data input circuits
- G11C16/12—Programming voltage switching 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0491—Virtual ground arrays
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/439,694 US5027321A (en) | 1989-11-21 | 1989-11-21 | Apparatus and method for improved reading/programming of virtual ground EPROM arrays |
GB9005481A GB2238410B (en) | 1989-11-21 | 1990-03-12 | Apparatus and method for improved reading/programming of virtual ground EPROM arrays |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9324581D0 GB9324581D0 (en) | 1994-01-19 |
GB2272089A GB2272089A (en) | 1994-05-04 |
GB2272089B true GB2272089B (en) | 1994-08-03 |
Family
ID=26296771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9324581A Expired - Lifetime GB2272089B (en) | 1989-11-21 | 1993-11-30 | Method for improved programming of virtual ground eprom arrays |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2272089B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20011150A1 (en) | 2001-05-30 | 2002-11-30 | St Microelectronics Srl | COLUMN MULTIPLATOR FOR SEMICONDUCTOR MEMORIES |
EP1262995B1 (en) | 2001-05-30 | 2010-01-27 | STMicroelectronics S.r.l. | A semiconductor memory system |
JP2005537597A (en) * | 2002-08-22 | 2005-12-08 | スパンション エルエルシー | Column decoding and precharging of flash memory devices |
US7142454B2 (en) | 2002-09-12 | 2006-11-28 | Spansion, Llc | System and method for Y-decoding in a flash memory device |
-
1993
- 1993-11-30 GB GB9324581A patent/GB2272089B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB9324581D0 (en) | 1994-01-19 |
GB2272089A (en) | 1994-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20100311 |