Patents
Sitemap › G11 - Information storage › G11C - Static stores › G11C 17 - Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
Patents for G11C 17 - Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards (10,133)
10/1991
10/29/1991US5061980 Semiconductor integrated circuit device
10/23/1991EP0453351A1 Fuse-detection circuit
10/23/1991EP0453206A2 Memory device
10/23/1991EP0452724A2 Circuit and method for erasing EEPROM memory arrays
10/22/1991US5060190 Read only memory with write operation using mask
10/17/1991WO1991015856A1 Output circuit of sense amplifier used in semiconductor memory
10/16/1991EP0452047A2 ROM card unit
10/16/1991EP0440653A4 High density integrated circuit analog signal recording and playback system
10/15/1991US5058071 Semiconductor memory device having means for repairing the memory device with respect to possible defective memory portions
10/15/1991US5058063 Nonvolatile semiconductor memory device incorporating level shifting circuits
10/15/1991US5058062 Nonvolatile semiconductor memory circuit including a reliable sense amplifier
10/15/1991CA1290823C Programmable sense amplifier for read only memory
10/09/1991EP0450921A2 Information transfer method, information transfer apparatus, and its driving method
10/09/1991EP0450632A2 Nonvolatile semiconductor memory device
10/09/1991EP0450389A2 A low-capacitance, high breakdown voltage programmed cell structure for read-only memory circuits
10/08/1991US5056062 Method of operating an eprom including delaying and boosting steps
10/08/1991US5056061 Circuit for encoding identification information on circuit dice using fet capacitors
10/02/1991EP0449610A2 Electrically erasable programmable read-only memory with threshold value measurement circuit
10/02/1991EP0448958A2 Semiconductor integrated circuit having non-volatile memory cells for controlling a predetermined function
10/02/1991DE4110371A1 EEPROM of NAND cell type - has memory cell transistors determining number of cell units with preset number of transistors in series
10/01/1991US5054001 Transistor breakdown protection circuit
10/01/1991US5053992 Prevention of inspection of secret data stored in encapsulated integrated circuit chip
10/01/1991US5053990 Program/erase selection for flash memory
10/01/1991US5053648 Master slice cmos array having complementary columns
09/1991
09/25/1991EP0448118A2 Differential cell-type EPROM incorporating stress test circuit
09/25/1991EP0447976A1 Read-only semiconductor memory device
09/25/1991EP0447856A1 Nonvolatile semiconducteur memory
09/24/1991US5052002 Method of detecting and indicating errors in a memory device
09/24/1991US5051956 Memory cell having means for maintaining the gate and substrate at the same potential
09/24/1991US5051953 EEPROM device including read, write, and erase voltage switching circuits
09/24/1991US5051794 Non-volatile semiconductor memory device and method for manufacturing the same
09/18/1991EP0447242A2 Semiconductor integrated circuit device having output stabilizing means
09/10/1991US5048019 Method of testing a read-only memory and device for performing the method
09/10/1991US5047981 Bit and block erasing of an electrically erasable and programmable read-only memory array
09/10/1991US5047924 Microcomputer
09/04/1991EP0444524A1 Semiconductor integrated circuit
09/03/1991US5046180 Semiconductor integrated circuit device comprising non-reprogrammable internal memory device
09/03/1991US5046045 Method of storing data in a read only memory to enhance access time
09/03/1991US5045726 Low power programming circuit for user programmable digital logic array
08/1991
08/29/1991DE4025640A1 Semiconductor EEPROM with matrix of memory cells - has first writing word line, and second one coupled to different memory cell
08/28/1991EP0443989A2 Sense circuit for reading data stored in nonvolatile memory cells
08/28/1991EP0443777A2 Write circuit for non-volatile memory device
08/28/1991EP0443776A2 Sense circuit for non-volatile memory device
08/28/1991EP0443775A2 Signature circuit for non-volatile memory device
08/27/1991US5043942 Nand cell type programmable read-only memory with common control gate driver circuit
08/27/1991US5043941 Non-volatile memory
08/21/1991CN2083323U 应用程序卡 Application Card
08/20/1991US5042009 Method for programming a floating gate memory device
08/20/1991US5041746 Sense amplifier providing a rapid output transition
08/14/1991EP0441518A2 Built-in self-test technique for read-only memories
08/14/1991EP0441510A2 Method for programming programmable elements in programmable devices
08/14/1991EP0440653A1 High density integrated circuit analog signal recording and playback system.
08/13/1991US5040147 Nonvolatile semiconductor memory
08/07/1991EP0440265A2 Nonvolatile semiconductor memory device
08/06/1991US5038327 Decoder circuit of erasable programmable read only memory for avoiding erroneous operation caused by parasitic capacitors
08/01/1991DE4002794A1 Data carrier for contactless goods identification - has insulating support plate with matrix of printed, parallel-connected coils
07/1991
07/31/1991EP0439188A2 Semiconductor integrated circuit
07/24/1991EP0438172A1 Semiconductor memory device having monitoring function
07/24/1991EP0438050A2 Nonvolatile semiconductor memory system
07/24/1991EP0437791A2 Nonvolatile semiconductor memory wherein dummy cells are used for generating a potential for detecting data
07/24/1991EP0368859B1 Programmable circuits
07/24/1991EP0366656B1 Connection network for adjustable circuit connection, in particular programmable circuits
07/24/1991EP0262193B1 Process for forming a fuse programmable read-only memory device
07/24/1991EP0217846B1 Electrically programmable read-only memory
07/24/1991CN1053319A Method and apparatus for reading and programming electrically programming memory cells
07/23/1991US5034927 Read only memory
07/23/1991US5034926 Non-volatile semiconductor memory
07/23/1991US5034925 Semiconductor memory device with redundancy responsive to advanced analysis
07/17/1991EP0436814A2 Method and apparatus for reading and programming electrically programmable memory cells
07/16/1991US5032877 Quantum-coupled ROM
07/16/1991US5032708 Write-once-read-once batteryless authentication token
07/10/1991EP0436247A2 Circuit for encoding identification information on circuit dice
07/09/1991US5031149 Non-volatile semiconductor memory device having, at the prestage of an address decoder, a level shifter for generating a program voltage
07/09/1991US5031148 MOS semiconductor memory device
07/03/1991EP0205258B1 Semiconductor integrated circuit having a function for switching the operational modes of an internal circuit
07/02/1991US5029138 Sense amplifier circuit coupled to a bit line pair for increasing a difference in voltage level at an improved speed
07/02/1991US5029131 Fault tolerant differential memory cell and sensing
06/1991
06/26/1991EP0434252A2 Sense amplifier
06/26/1991EP0434104A1 Integrated semiconductor circuit of the master slice type
06/26/1991EP0433799A2 PROM speed measuring method
06/25/1991US5027321 Apparatus and method for improved reading/programming of virtual ground EPROM arrays
06/25/1991US5027053 Low power VCC /2 generator
06/19/1991EP0432481A2 Methods and apparatus for verifying the state of a plurality of electrically programmable memory cells
06/18/1991US5025418 Semiconductor device for performing automatic replacement of defective cells
06/18/1991US5025417 Semiconductor memory device capable of preventing data of non-selected memory cell from being degraded
06/14/1991CA2005486A1 Inventor
06/12/1991EP0432050A1 Programming voltage generating circuit for programmable memory
06/12/1991EP0432049A1 MOS blow-out fuse with programmable tunnel oxide
06/12/1991EP0431911A2 Memory cell having floating gate and semiconductor memory using the same
06/12/1991EP0431862A2 Sense circuitry
06/11/1991US5023839 Redundant semiconductor memory device
06/05/1991EP0430191A2 Semiconductor memory
06/04/1991US5022009 Semiconductor memory device having reading operation of information by differential amplification
06/04/1991US5022008 PROM speed measuring method
06/04/1991US5022003 Semiconductor memory device
06/04/1991US5022002 Programmable ROM having a reduced number of power source terminals
06/04/1991US5022001 Method for the programming of the memory cells of a memory and a circuit to implement this method
06/04/1991US5022000 Semiconductor memory device
06/04/1991US5021693 Control circuit for floating gate four-quadrant analog multiplier
05/1991
05/29/1991CN1051823A Integrated semiconductor circuit of master slice type
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