WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017070050) DRAM ADJACENT ROW DISTURB MITIGATION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/070050 International Application No.: PCT/US2016/057361
Publication Date: 27.04.2017 International Filing Date: 17.10.2016
IPC:
G11C 11/4078 (2006.01) ,G11C 7/24 (2006.01)
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
11
Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
21
using electric elements
34
using semiconductor devices
40
using transistors
401
forming cells needing refreshing or charge regeneration, i.e. dynamic cells
4063
Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
407
for memory cells of the field-effect type
4078
Safety or protection circuits, e.g. for preventing inadvertent or unauthorised reading or writing; Status cells; Test cells
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
7
Arrangements for writing information into, or reading information out from, a digital store
24
Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
Applicants: INVENSAS CORPORATION[US/US]; 3025 Orchard Parkway San Jose, CA 95134, US
Inventors: FISCH, David, Edward; US
PLANTS, William, C.; US
Agent: LATTIN, Christopher, W.; US
Priority Data:
15/019,78809.02.2016US
62/244,49421.10.2015US
Title (EN) DRAM ADJACENT ROW DISTURB MITIGATION
(FR) ATTÉNUATION DE PERTURBATION DE RANGÉES ADJACENTES DE DRAM
Abstract:
(EN) The invention pertains to mitigation of row hammer attacks in DRAM integrated circuits. Apparatus and methods are disclosed for an embedded target row refresh (TRR) solution with modest overhead. In operation it is nearly transparent to the user. Except for enablement via the mode register and an increase in the average refresh rate on the order of half of one percent, no further user action is required. The stream of row addresses accompanying ACTIVE commands is monitored and filtered to only track addresses that occur at a dangerous rate and reject addresses that occur at less than a dangerous rate.
(FR) L'invention concerne l'atténuation d'attaques par martèlement de rangées dans des circuits intégrés de DRAM. Un appareil et des procédés sont décrits pour une solution incorporée de rafraîchissement de rangées de destination (TRR) avec une surcharge modérée. En cours d'utilisation, elle est quasiment transparente pour l'utilisateur. A l'exception d'une activation via le registre de modes et d'une augmentation de la fréquence moyenne de rafraîchissement de l'ordre d'un demi pour cent, aucune autre action de l'utilisateur n'est nécessaire. Le flux d'adresses de rangées accompagnant les commandes ACTIVE est surveillé et filtré pour ne suivre que les adresses qui apparaissent à une fréquence dangereuse et rejeter les adresses qui apparaissent à une fréquence trop basse pour être dangereuse.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)