Flash EEprom system

Details Flash EEprom system Flash EEprom system

2003-01-21

2008-07-08

Nguyen, Viet Q (Department: 2827)

Static information storage and retrieval

Read/write circuit

Bad bit

C365S230010, C365S230080, C714S710000

Reexamination Certificate

active

07397713

ABSTRACT:
A system of Flash EEprom memory chips with controlling circuits serves as non-volatile memory such as that provided by magnetic disk drives. Improvements include selective multiple sector erase, in which any combinations of Flash sectors may be erased together. Selective sectors among the selected combination may also be de-selected during the erase operation. Another improvement is the ability to remap and replace defective cells with substitute cells. The remapping is performed automatically as soon as a defective cell is detected. When the number of defects in a Flash sector becomes large, the whole sector is remapped. Yet another improvement is the use of a write cache to reduce the number of writes to the Flash EEprom memory, thereby minimizing the stress to the device from undergoing too many write/erase cycling.

REFERENCES:
patent: 3331058 (1967-07-01), Perkins
patent: 3442402 (1969-05-01), Baxter
patent: 3593037 (1971-07-01), Hoff, Jr.
patent: 3633175 (1972-01-01), Harper
patent: 3676877 (1972-07-01), Kobayashi
patent: 3693159 (1972-09-01), Hilberg
patent: 3735368 (1973-05-01), Beausoleil
patent: 3753244 (1973-08-01), Sumilas et al.
patent: 3765001 (1973-10-01), Beausoleil
patent: 3771143 (1973-11-01), Taylor
patent: 3772652 (1973-11-01), Hilberg
patent: 3778776 (1973-12-01), Hakozaki
patent: 3781826 (1973-12-01), Beausoleil
patent: 3800294 (1974-03-01), Lawlor
patent: 3810127 (1974-05-01), Hoff, Jr.
patent: 3821715 (1974-06-01), Hoff, Jr. et al.
patent: 3882470 (1975-05-01), Hunter
patent: 3955180 (1976-05-01), Hirtle
patent: 4007452 (1977-02-01), Hoff, Jr.
patent: 4037209 (1977-07-01), Nakajima et al.
patent: 4051354 (1977-09-01), Choate
patent: 4051460 (1977-09-01), Yamada et al.
patent: 4074236 (1978-02-01), Ishida
patent: 4093985 (1978-06-01), Das
patent: 4099069 (1978-07-01), Cricchi et al.
patent: 4115914 (1978-09-01), Harari
patent: 4188662 (1980-02-01), Ishibashi
patent: 4193128 (1980-03-01), Brewer
patent: 4210959 (1980-07-01), Wozniak
patent: 4214280 (1980-07-01), Halfhill et al.
patent: 4218742 (1980-08-01), Carlton et al.
patent: 4250570 (1981-02-01), Tsang et al.
patent: 4272830 (1981-06-01), Moench
patent: 4277827 (1981-07-01), Carlson et al.
patent: 4279024 (1981-07-01), Schrenk
patent: 4281398 (1981-07-01), McKenny et al.
patent: 4287570 (1981-09-01), Stark
patent: 4295205 (1981-10-01), Kunstadt
patent: 4297719 (1981-10-01), Hsu
patent: 4310901 (1982-01-01), Harding et al.
patent: 4319323 (1982-03-01), Ermolovich et al.
patent: 4354253 (1982-10-01), Naden
patent: 4355376 (1982-10-01), Gould
patent: 4380066 (1983-04-01), Spencer et al.
patent: 4398248 (1983-08-01), Hsia et al.
patent: 4405952 (1983-09-01), Slakmon
patent: 4422161 (1983-12-01), Kressel et al.
patent: 4426688 (1984-01-01), Moxley
patent: 4434487 (1984-02-01), Rubinson et al.
patent: 4443845 (1984-04-01), Hamilton et al.
patent: 4449205 (1984-05-01), Hoffman
patent: 4450559 (1984-05-01), Bond et al.
patent: 4456971 (1984-06-01), Fukuda et al.
patent: 4459661 (1984-07-01), Kaneda et al.
patent: 4463450 (1984-07-01), Haeusele
patent: 4466055 (1984-08-01), Kinoshita et al.
patent: 4466059 (1984-08-01), Bastian et al.
patent: 4467421 (1984-08-01), White
patent: 4475194 (1984-10-01), LaVallee et al.
patent: 4479214 (1984-10-01), Ryan
patent: 4482952 (1984-11-01), Akagi
patent: 4489351 (1984-12-01), d'Alayer de Costemore d'Arc
patent: 4493075 (1985-01-01), Anderson et al.
patent: 4495572 (1985-01-01), Bosen
patent: 4498146 (1985-02-01), Martinez
patent: 4503518 (1985-03-01), Iwahashi
patent: 4506324 (1985-03-01), Healy
patent: 4509113 (1985-04-01), Heath
patent: 4514830 (1985-04-01), Hagiwara et al.
patent: 4525839 (1985-06-01), Nozawa et al.
patent: 4527251 (1985-07-01), Nibby, Jr. et al.
patent: 4573141 (1986-02-01), Simon
patent: 4578774 (1986-03-01), Muller
patent: 4584681 (1986-04-01), Singh et al.
patent: 4586163 (1986-04-01), Koike
patent: 4601031 (1986-07-01), Walker et al.
patent: 4612640 (1986-09-01), Mehrotra et al.
patent: 4616311 (1986-10-01), Sato
patent: 4617624 (1986-10-01), Goodman
patent: 4617651 (1986-10-01), Ip et al.
patent: 4630230 (1986-12-01), Sundet
patent: 4638465 (1987-01-01), Rosini et al.
patent: 4642759 (1987-02-01), Foster
patent: 4644494 (1987-02-01), Muller
patent: 4648076 (1987-03-01), Schrenk
patent: 4653023 (1987-03-01), Suzuki et al.
patent: 4654829 (1987-03-01), Jiang et al.
patent: 4654847 (1987-03-01), Dutton
patent: 4672240 (1987-06-01), Smith et al.
patent: 4680736 (1987-07-01), Schrenk
patent: 4688170 (1987-08-01), Waite et al.
patent: 4713756 (1987-12-01), Mackiewicz et al.
patent: 4718041 (1988-01-01), Baglee et al.
patent: 4727512 (1988-02-01), Birkner et al.
patent: 4733375 (1988-03-01), Terashima
patent: 4733394 (1988-03-01), Giebel
patent: 4737935 (1988-04-01), Wawersig et al.
patent: 4742215 (1988-05-01), Daughters et al.
patent: 4744062 (1988-05-01), Nakamura et al.
patent: 4746998 (1988-05-01), Robinson et al.
patent: 4748320 (1988-05-01), Yorimoto et al.
patent: 4750158 (1988-06-01), Giebel et al.
patent: 4751703 (1988-06-01), Picon et al.
patent: 4768193 (1988-08-01), Takemae
patent: 4774652 (1988-09-01), Dhuey et al.
patent: 4774700 (1988-09-01), Satoh et al.
patent: 4780855 (1988-10-01), Iida et al.
patent: 4783745 (1988-11-01), Brookner et al.
patent: 4785425 (1988-11-01), Lavelle
patent: 4789967 (1988-12-01), Liou et al.
patent: 4791604 (1988-12-01), Lienau et al.
patent: 4791615 (1988-12-01), Pelley, III et al.
patent: 4794568 (1988-12-01), Lim et al.
patent: 4796233 (1989-01-01), Awaya et al.
patent: 4797543 (1989-01-01), Watanabe
patent: 4798941 (1989-01-01), Watanabe
patent: 4800520 (1989-01-01), Iijima
patent: 4803554 (1989-02-01), Pape
patent: 4805109 (1989-02-01), Kroll et al.
patent: 4817002 (1989-03-01), Sansone et al.
patent: 4819211 (1989-04-01), Takagi
patent: 4821240 (1989-04-01), Nakamura et al.
patent: 4829169 (1989-05-01), Watanabe
patent: 4831245 (1989-05-01), Ogasawara
patent: 4839705 (1989-06-01), Tigelaar et al.
patent: 4841482 (1989-06-01), Kreifels et al.
patent: 4847808 (1989-07-01), Kobatake
patent: 4853522 (1989-08-01), Ogasawara
patent: 4853853 (1989-08-01), Yamamura et al.
patent: 4862200 (1989-08-01), Hicks
patent: 4862416 (1989-08-01), Takeuchi
patent: 4882474 (1989-11-01), Anderi et al.
patent: 4882642 (1989-11-01), Tayler et al.
patent: 4887234 (1989-12-01), Iijima
patent: 4891506 (1990-01-01), Yoshimatsu
patent: 4896262 (1990-01-01), Wayama et al.
patent: 4899274 (1990-02-01), Hansen et al.
patent: 4914529 (1990-04-01), Bonke
patent: 4916605 (1990-04-01), Beardsley et al.
patent: 4920478 (1990-04-01), Furuya et al.
patent: 4920518 (1990-04-01), Nakamura et al.
patent: 4924331 (1990-05-01), Robinson et al.
patent: 4931943 (1990-06-01), Vermesse
patent: 4933906 (1990-06-01), Terada et al.
patent: 4939598 (1990-07-01), Kulakowski et al.
patent: 4942556 (1990-07-01), Sasaki et al.
patent: 4945535 (1990-07-01), Hosotani et al.
patent: 4949240 (1990-08-01), Iijima
patent: 4949309 (1990-08-01), Rao
patent: 4953122 (1990-08-01), Williams
patent: 4958315 (1990-09-01), Balch
patent: 4964074 (1990-10-01), Suzuki et al.
patent: 4977503 (1990-12-01), Rudnick et al.
patent: 4984191 (1991-01-01), Vermesse
patent: 5033990 (1991-07-01), Silverman
patent: 5043940 (1991-08-01), Harari
patent: 5051887 (1991-09-01), Berger et al.
patent: 5053990 (1991-10-01), Kreifels et al.
patent: 5093731 (1992-03-01), Watanabe et al.
patent: 5095344 (1992-03-01), Harari
patent: 5101249 (1992-03-01), Hijiya et al.
patent: 5136546 (1992-08-01), Fukuda et al.
patent: 5146571 (1992-09-01), Logan
patent: 5163021 (1992-11-01), Mehrotra et al.
patent: 5167021 (1992-11-01), Needham
patent: 5168465 (1992-12-01), Harari
patent: 5172338 (1992-12-01), Mehrotra et al.
patent: 5198380 (1993-03-01), Harari
patent: 5218691 (1993-06-01), Tuma et al.
patent: 5222046 (1993-06-01), Kreifels et al.
patent: 5226136 (1993-07-01), Nakagawa
patent: 5226168 (1993-07-01), Kobayashi et al.
patent: 5239662 (1993-08-01), Danielson et al.
patent: 5253350 (1993-10-01), Foster et al.
patent: 5268318 (1993-12-01), Harari
patent: 5268319 (1993-12-01), Harari
patent: 5297148

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