Patents
Patents for G11C 16 - Erasable programmable read-only memories (44,373)
01/1991
01/02/1991EP0277152A4 One-time programmable data security system for programmable logic device
01/01/1991US4982377 Erasable programmable read only memory device improved in operation speed and in the amount of read out current
01/01/1991US4982372 Semiconductor memory device having divided word or bit line drivers and operating method therefor
01/01/1991US4982364 Semiconductor memory having a stabalized reference potential for use in detecting a data read out from a memory cell
01/01/1991US4982363 Sensing structure for single ended input
01/01/1991US4982360 Memory subsystem
01/01/1991US4982113 Signal distributing unit for various input signals different in voltage level
12/1990
12/27/1990WO1990016069A1 Semiconductor memory device
12/27/1990EP0403822A1 Circuit and method for conditioning erased eeproms prior to programming
12/25/1990US4980859 NOVRAM cell using two differential decouplable nonvolatile memory elements
12/21/1990CA2010122A1 Integrated circuit including programmable circuit
12/19/1990EP0402683A2 Method and apparatus for updating firmware resident in an electrically erasable programmable read-only memory
12/18/1990US4979146 Electrically erasable non-volatile semiconductor device
12/18/1990CA1277887C Cleaner - all-purpose concentrate
12/14/1990CA2015305A1 Method and apparatus for updating firmware resident in an electrically erasable programmable read-only memory
12/13/1990WO1990015413A1 Programming voltage control circuit for eproms
12/13/1990WO1990015412A1 A high reliability non-volatile memory circuit and structure
12/11/1990US4977543 Control circuit for EEPROM
12/11/1990US4977541 EPROM programming
12/05/1990EP0400483A2 Programming method for semiconductor memory device
12/04/1990US4975883 Method and apparatus for preventing the erasure and programming of a nonvolatile memory
12/04/1990US4975384 Semiconductor substrate, floating gate transistor
12/04/1990US4975383 Method for making an electrically erasable programmable read only memory cell having a three dimensional floating gate
11/1990
11/28/1990EP0399820A2 Semiconductor memories
11/28/1990EP0399527A2 Non-volatile semiconductor memory device
11/28/1990EP0399362A2 A sense amplifier circuit
11/28/1990EP0399258A2 Semiconductor memory device having self-correcting function
11/27/1990US4974208 Microcomputer incorporating a nonvolatile semiconductor memory
11/27/1990US4974207 Semiconductor memory device
11/27/1990US4974206 Nonvolatile semiconductor memory device having reference potential generating circuit
11/27/1990US4974204 Non-volatile programmable interconnection circuit
11/22/1990EP0398654A2 Apparatus for writing data to an eeprom
11/22/1990EP0398545A1 Method and apparatus for storing data in a non-volatile memory
11/22/1990EP0398048A2 High-speed data reading semiconductor memory device
11/20/1990US4972378 Nonvolatile memory circuit device performing stable operation in wide range of power source voltage level
11/20/1990US4972371 Semiconductor memory device
11/20/1990US4971930 EPROM semiconductor device erasable with ultraviolet rays and manufacturing process thereof
11/14/1990EP0397194A2 Semiconductor memory device having two types of memory cell
11/13/1990US4970727 Semiconductor integrated circuit having multiple self-test functions and operating method therefor
11/13/1990US4970692 Circuit for controlling a flash EEPROM having three distinct modes of operation by allowing multiple functionality of a single pin
11/13/1990US4970691 2-cell/1-bit type EPROM
11/13/1990US4970565 Sealed charge storage structure
11/13/1990US4970409 Voltage multiplier for nonvolatile semiconductor memory
11/07/1990EP0396263A2 EEPROM device
11/07/1990EP0395894A2 Electronic circuit for analog multiplication, differential amplification or charge accumulation
10/1990
10/31/1990EP0394705A1 A nonvolatile memory system for multiple value storing
10/30/1990US4967415 EEPROM system with bit error detecting function
10/30/1990US4967399 Erasable and programmable read-only memory system
10/30/1990US4967394 Semiconductor memory device having a test cell array
10/30/1990US4967393 Flash erasable and programmable nonvolatile semiconductor memory
10/24/1990EP0393737A2 Electrically-programmable semiconductor memories
10/23/1990US4965768 Semiconductor device having programmable read only memory cells for specific mode
10/23/1990US4965473 Eprom low voltage sense amplifier
10/18/1990WO1990012402A1 Improved novram cell using two differential, decouplable nonvolatile memory elements
10/18/1990WO1990012400A1 Multi-state eeprom read and write circuits and techniques
10/17/1990EP0392895A2 Flash EEprom system
10/16/1990US4964079 Electrically programmable memory with several information bits per cell
10/10/1990EP0390859A1 Low power voltage clamp circuit.
10/09/1990US4962484 Non-volatile memory device
10/09/1990US4962482 Nonvolatile memory device using a sense circuit including variable threshold transistors
10/09/1990US4962481 EEPROM device with plurality of memory strings made of floating gate transistors connected in series
10/09/1990US4962322 Nonvolatible capacitor random access memory
10/03/1990EP0390404A2 Sense amplifier
10/03/1990EP0389721A2 Flash EPROM cell and method of making such cell
10/03/1990EP0389693A1 EPROM enabling multiple use of bit line contacts
10/03/1990EP0389584A1 Transistor breakdown protection circuit.
09/1990
09/26/1990EP0388752A2 Reference cell for reading eeprom memory devices
09/25/1990US4959812 Electrically erasable programmable read-only memory with NAND cell structure
09/20/1990WO1990006579A3 Improved disc unit
09/19/1990EP0387936A1 Table cloth matrix of EPROM memory cells with buried junctions, individually accessible by a traditional decoder
09/19/1990EP0387935A1 Table cloth matrix of EPROM memory cells with an asymmetrical fin
09/19/1990EP0387889A2 Nonvolatile semiconductor memory
09/18/1990US4958321 Electrically programmable/erasable semiconductor
09/18/1990US4958317 Nonvolatile semiconductor memory device and a writing method using electron tunneling
09/12/1990EP0387102A2 Semi-conductor non-volatile memory and method of writing the same
09/12/1990EP0387101A2 Semi-conductor non-volatile memory and method of writing the same
09/11/1990US4956816 Non-volatile semiconductor memory having improved testing circuitry
09/05/1990EP0385469A2 Potential detecting circuit
09/04/1990US4954991 Semiconductor memory with p-channel load transistor
09/04/1990US4954990 Programming voltage control circuit for EPROMS
08/1990
08/28/1990US4953133 Decoder buffer circuit incorporated in semiconductor memory device
08/28/1990US4953129 Nonvolatile semiconductor memory device capable of reliably writing data and a data writing method therefor
08/22/1990EP0383009A2 Sense amplifier in use with a semiconductor memory device
08/22/1990EP0382929A2 Voltage regulator circuit
08/22/1990EP0382927A1 ECL EPROM with CMOS programming
08/21/1990US4951257 Reference setting circuit for determining written-in content in nonvolatile semiconductor memories
08/14/1990US4949309 EEPROM utilizing single transistor per cell capable of both byte erase and flash erase
08/14/1990US4949307 Circuit for sensing the state of matrix cells in MOS EPROM memories including an offset current generator
08/14/1990US4949305 Erasable read-only semiconductor memory device
08/08/1990EP0381404A2 Non-volatile memory
08/07/1990US4947378 Memory element exchange control circuit capable of automatically refreshing a defective address
08/01/1990EP0380122A1 Thin-film memory element and method of manufacturing the same
08/01/1990EP0379693A2 A non-volatile semiconductor memory device having a circuit for applying a program voltage
07/1990
07/31/1990US4945393 Floating gate memory circuit and apparatus
07/30/1990CA2008406A1 Non-volatile memory
07/24/1990US4943962 Nonvolatile semiconductor memory having page mode programming function
07/24/1990US4943948 Program check for a non-volatile memory
07/24/1990US4943943 Read-out circuit for semiconductor nonvolatile memory
07/18/1990EP0377841A2 Semiconductor integrated circuit capable of preventing occurrence of erroneous operation due to noise
07/18/1990EP0377840A2 Nonvolatile semiconductor memory device having reference potential generating circuit