Patents for G11C 16 - Erasable programmable read-only memories (44,373) |
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06/04/1991 | US5022000 Semiconductor memory device |
06/04/1991 | US5021999 Non-volatile semiconductor memory device with facility of storing tri-level data |
06/04/1991 | US5021693 Control circuit for floating gate four-quadrant analog multiplier |
06/04/1991 | US5021680 Voltage supply circuit for programming circuits of programmable logic arrays |
05/30/1991 | WO1991007753A1 In-circuit programming of integrated circuits |
05/28/1991 | US5020026 Method and apparatus for reading and programming electrically programmable memory cells |
05/21/1991 | US5018108 Nonvolatile semiconductor memory |
05/21/1991 | US5018107 Semiconductor memory device |
05/21/1991 | US5018104 Redundant circuit incorporated in semiconductor memory device |
05/21/1991 | US5017978 EPROM having a reduced number of contacts |
05/15/1991 | EP0427260A2 Non-volatile memory devices |
05/15/1991 | CN1051448A Word erasable buried bit line eeprom |
05/14/1991 | US5016222 Circuit responsive to a voltage change for detecting erroneous writing into a memory |
05/14/1991 | US5016218 Nonvolatile memory with data write circuitry to reduce write errors |
05/14/1991 | US5016217 Logic cell array using CMOS EPROM cells having reduced chip surface area |
05/14/1991 | US5016216 Decoder for a floating gate memory |
05/14/1991 | US5016215 High speed EPROM with reverse polarity voltages applied to source and drain regions during reading and writing |
05/14/1991 | US5015890 Sense amplifier having pull-up circuit controlled by feedback |
05/14/1991 | US5014418 Method of forming a two piece chip carrier |
05/08/1991 | EP0426417A2 Non-volatile semiconductor memory device |
05/08/1991 | EP0426282A2 Three transistor EEPROM cell |
05/07/1991 | US5014097 On-chip high voltage generator and regulator in an integrated circuit |
05/07/1991 | US5013943 Single ended sense amplifier with improved data recall for variable bit line current |
05/02/1991 | EP0425284A2 Non-volatile semiconductor memory device with improved layout |
04/30/1991 | US5012448 Sense amplifier for a ROM having a multilevel memory cell |
04/30/1991 | US5012445 Programmable read only memory being capable of controlling internal writing voltage of external voltage |
04/30/1991 | US5012132 Dual mode high voltage coupler |
04/24/1991 | EP0424191A2 Device and method for defect handling in semi-conductor memory |
04/24/1991 | EP0424172A2 Nonvolatile semiconductor memory apparatus |
04/24/1991 | EP0423833A1 Non-volatile memory device |
04/23/1991 | US5010520 Nonvolatile semiconductor memory device with stabilized data write characteristic |
04/23/1991 | US5010024 Passivation for integrated circuit structures |
04/18/1991 | WO1991005407A1 Dual mode high voltage coupler |
04/17/1991 | EP0422347A2 Bitline segmentation in logic memory arrays |
04/16/1991 | US5008856 Electrically programmable nonvolatile semiconductor memory device with NAND cell structure |
04/16/1991 | US5008566 Power supply voltage drop detection circuit for use in EEPROM memory |
04/16/1991 | US5008212 Selective asperity definition technique suitable for use in fabricating floating-gate transistor |
04/10/1991 | EP0421839A1 Memory with improved reading time |
04/10/1991 | EP0421425A2 Memory control system |
04/09/1991 | US5007023 Bitline precharge circuit of multi-sectional memory array |
04/09/1991 | US5006974 On-chip high voltage generator and regulator in an integrated circuit |
04/09/1991 | CA1282875C Device for testing the operation of an eprom or an eeprom memory cell readingsystem |
04/03/1991 | EP0420822A1 Method of storing analogue values and device for its implementation |
04/03/1991 | EP0420752A1 Integrated programmable logic array |
04/03/1991 | EP0420477A2 A decoder circuit for a PROM |
04/03/1991 | EP0420182A2 Nonvolatile memory cell and its manufacturing method |
04/03/1991 | EP0419663A1 Nonvolatile semiconductor memory and method of producing the same |
04/02/1991 | US5005155 Optimized electrically erasable PLA cell for minimum read disturb |
03/27/1991 | EP0419260A2 Electrically erasable and programmable non-volatile semiconductor memory device |
03/27/1991 | EP0419202A2 A semiconductor memory device |
03/26/1991 | US5003512 Integrated memory circuit having a high-voltage switch |
03/26/1991 | US5003511 Voltage supply switching device for nonvolatile memories in MOS technology |
03/26/1991 | US5003507 EPROM emulator for selectively simulating a variety of different paging EPROMs in a test circuit |
03/26/1991 | US5003205 Buffer circuit used in a semiconductor device operating by different supply potentials and method of operating the same |
03/26/1991 | US5003203 Adaptive reference voltage generation circuit for PLA sense amplifiers |
03/19/1991 | US5001668 Nonvolatile memory circuit device with low power consumption and wide operating voltage range |
03/19/1991 | US5001332 Method and circuit for manipulation-proof devaluation of EEPROMS |
03/13/1991 | EP0417008A1 Locking device composed of a never programmable floating gate cell |
03/12/1991 | US4999812 Architecture for a flash erase EEPROM memory |
03/07/1991 | WO1991003054A1 Memory cell |
03/06/1991 | EP0415221A2 Non-volatile programmable interconnection circuit |
03/05/1991 | US4998223 Programmable semiconductor memory apparatus |
03/05/1991 | US4998220 EEPROM with improved erase structure |
02/28/1991 | DE4025158A1 Encased PROM with memory cell field - has field cells in matrix of lines and columns, and replacement memory cell |
02/27/1991 | EP0238549B1 Nonvolatile memory cell |
02/26/1991 | US4996669 Electrically erasable programmable read-only memory with NAND memory cell structure |
02/26/1991 | US4996668 Erasable programmable memory |
02/26/1991 | US4996571 Non-volatile semiconductor memory device erasing operation |
02/26/1991 | US4996451 Programmable static selection circuit for programmable devices |
02/21/1991 | WO1991002409A1 Single ended sense amplifier with improved data recall from variable bit line current |
02/20/1991 | EP0413347A2 Semiconductor nonvolatile memory device |
02/13/1991 | EP0412837A2 Ultraviolet erasable non-volatile memory devices |
02/13/1991 | EP0412781A1 Test method for an integrated circuit including non-volatile memory cell capable of temporarily holding information |
02/12/1991 | US4992980 Electrically programmable memory |
02/10/1991 | CA2022864A1 Integrated circuit including non-volatile memory cell capable of temporarily holding information |
02/06/1991 | EP0411573A2 Nonvolatile semiconductor memory device and method of operating the same |
02/05/1991 | US4990719 Hermetically sealed chip carrier with metal cover having pre-poured glass window |
01/29/1991 | US4989184 Semiconductor memory device having current type sense amplifier improved for high speed operation and operating method therefor |
01/29/1991 | US4989179 High density integrated circuit analog signal recording and playback system |
01/23/1991 | EP0409697A1 MOS integrated circuit with adjustable threshold voltage |
01/23/1991 | EP0409672A1 Erasing procedure for memory cells, means for its implementation and its use in a powerless memory device |
01/23/1991 | EP0409042A2 Word erasable buried bit line EEPROM |
01/16/1991 | EP0408419A1 Use of an electrically programmable MOS cell to implement a fuse |
01/16/1991 | EP0408368A2 Semi-conductor non-volatile memory device |
01/16/1991 | EP0408234A2 A non-volatile counter |
01/16/1991 | EP0408233A2 A non-volatile RAM bit cell |
01/16/1991 | EP0408057A2 Semiconductor memory device |
01/16/1991 | EP0408037A2 Semiconductor memory device |
01/16/1991 | EP0408002A2 A programmable semiconductor memory apparatus |
01/09/1991 | EP0407170A2 Charge pump |
01/09/1991 | EP0406996A1 Integrated circuit including programmable circuit |
01/09/1991 | EP0406861A2 Non-volatile semiconductor memory device |
01/08/1991 | US4984212 Semiconductor memory |
01/08/1991 | US4984191 Limited write non-volatile memory and a franking machine making use thereof |
01/08/1991 | US4983317 Solvent, nonionic or anionic surfactant, builder system which includes polyacrylic acid or salt, fatty acid dimer alkali sal t hydrotrope |
01/03/1991 | DE4018977A1 EEPROM with NAND memory cells - has potential stabiliser above semiconductor support layer, next to respective data transmission line |
01/02/1991 | EP0406007A2 Non volatile semiconductor memory device |
01/02/1991 | EP0405220A2 Semiconductor memory device |
01/02/1991 | EP0405140A1 Bit- and block-erasing of an electrically erasable and programmable read-only memory array |
01/02/1991 | EP0405009A2 Integrated voltage multiplier for a low-voltage supply |