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