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)
03/1999
03/03/1999	EP0898786A1 Method and apparatus for programming anti-fuses using internally generated programming voltage
03/02/1999	US5878048 Mask ROM having redundancy function
03/02/1999	US5877986 Multi-state Flash EEprom system on a card that includes defective cell substitution
03/02/1999	US5877985 Intermediate voltage generating circuit and nonvolatile semiconductor memory having the same
03/02/1999	US5877537 Semiconductor device having first transistor rows with second transistor rows connected therebetween
02/1999
02/23/1999	US5875128 Semiconductor memory
02/23/1999	US5874761 Semiconductor memory device with three-dimensional cluster distribution
02/23/1999	US5874759 Flash memory cell and method of fabricating the same
02/23/1999	CA2137683C Data writing to non-volatile memory
02/16/1999	US5872994 Flash memory incorporating microcomputer having on-board writing function
02/16/1999	US5872740 System and method for an antifuse bank
02/16/1999	US5872734 Semiconductor nonvolatile memory device and computer system using the same
02/16/1999	US5872476 Level converter circuit generating a plurality of positive/negative voltages
02/09/1999	US5870334 Nonvolatile semiconductor memory device
02/09/1999	US5870326 Information encoding by multiple line selection
02/09/1999	US5870218 Nonvolatile semiconductor memory device which stores multi-value information
02/09/1999	US5869373 Source/drain regions for metal oxide semiconductor field effective transitor memory cells are formed from intrinsic amorphous silicon, instead of highly doped polysilicon
02/03/1999	CN1206918A Semiconductor storage device
02/02/1999	US5867427 Electrically writable nonvolatile semiconductor memory device
02/02/1999	US5866456 Method for fabricating a semiconductor memory device
01/1999
01/26/1999	US5864696 Circuit and method for setting the time duration of a write to a memory cell
01/26/1999	US5864504 Voltage generating circuit
01/26/1999	CA1340340C Non-volatile memory circuit using ferroelectric capacitor storage element
01/20/1999	EP0891601A1 Smart card
01/20/1999	CN1205523A Read only memory
01/19/1999	US5862091 Memory accessible in read mode only
01/19/1999	US5862087 Redundancy circuit for memory devices having high frequency addressing cycles
01/19/1999	US5862080 Multi-state flash EEprom system with defect handling
01/19/1999	US5862076 Fast EPROM array
01/12/1999	US5860135 File managing device of a non-volatile memory, a memory card and method for controlling a file system
01/12/1999	US5860121 Method and apparatus for programming electrically reprogrammable non-volatile memory and a unit including such apparatus
01/12/1999	US5859562 Programming circuit for antifuses using bipolar and SCR devices
12/1998
12/30/1998	CN1203687A Read-only memory and method of commanding same
12/29/1998	US5854766 Non-volatile semiconductor memory device with diagnostic potential generator for individually checking whether memory cells are over-erased
12/29/1998	US5854111 ROM device using a schuckly diode
12/23/1998	WO1998058385A1 Memory element with energy control mechanism
12/23/1998	WO1998058383A2 Electrically addressable passive device, method for electrical addressing of the same and uses of the device and the method
12/23/1998	EP0886279A2 Address decoder, simiconductor memory and semiconductor device
12/23/1998	EP0601207B1 Data read method and read only memory circuit
12/22/1998	US5852583 Semiconductor memory device that can realize high speed data read out
12/22/1998	US5852570 Semiconductor memory using select transistors coupled to sub-bitlines from different blocks
12/17/1998	DE19713173A1 New ROM with multiple intersecting conductor line levels
12/16/1998	EP0884734A1 Nonvolatile semiconductor memory
12/15/1998	US5850092 Integrated circuit
12/15/1998	US5850091 Semiconductor memory device and method of reading a data therefrom
12/09/1998	EP0882294A2 Read-only memory and method of commanding same
12/09/1998	CN1041137C Semiconductor memory circuit
12/08/1998	US5848010 Circuit and method for antifuse stress test
12/08/1998	US5847996 Eeprom with split gate source side injection
12/08/1998	US5847995 Nonvolatile semiconductor memory device having a plurality of blocks provided on a plurality of electrically isolated wells
12/08/1998	US5847988 ROM storage cell and method of fabrication
12/08/1998	US5847987 Low currency redundancy anti-fuse method and apparatus
12/08/1998	US5847442 Structure for read-only-memory
12/08/1998	US5847441 Semiconductor junction antifuse circuit
12/08/1998	US5847374 Method for preventing removal of a smart card used in a purse mode
12/08/1998	US5846863 Method for manufacturing a semiconductor ROM device
12/02/1998	EP0721644B1 Process for fully re-programming an erasable non-volatile store
12/02/1998	EP0664046A4 Remotely re-programmable program memory for a microcontroller.
12/01/1998	US5845332 Non-volatile memory, memory card and information processing apparatus using the same and method for software write protect control of non-volatile memory
12/01/1998	US5844910 Flash-erase-type nonvolatile semiconductor storage device
12/01/1998	US5844847 Method and Nonvolatile semiconductor memory for repairing over-erased cells
12/01/1998	US5844841 Memory system
12/01/1998	US5844298 Method and apparatus for programming anti-fuses
11/1998
11/25/1998	EP0880144A2 Read only memory
11/24/1998	US5841723 Method and apparatus for programming anti-fuses using an isolated well programming circuit
11/24/1998	US5841721 Multi-block erase and verification circuit in a nonvolatile semiconductor memory device and a method thereof
11/24/1998	US5841719 Data latching circuit for read-out operations of data from memory device
11/24/1998	US5841699 Storage device and method to detect its degradation
11/24/1998	US5841693 Non-volatile memory using field effect transistors having dual floating gates for storing two bits per cell
11/24/1998	US5841314 Charge pump type of negative voltage generator circuit and method
11/24/1998	US5840608 High density ROM and a method of making the same
11/18/1998	CN1040809C High-density mask type read-only memory
11/17/1998	US5838626 Non-volatile memory
11/17/1998	US5838625 Providing a programmed signal in an integrated circuit
11/17/1998	US5838624 Circuits for improving the reliability of antifuses in integrated circuits
11/17/1998	US5838617 Method for changing electrically programmable read-only memory devices
11/17/1998	US5838612 Reading circuit for multilevel non volatile memory cell devices
11/17/1998	US5838190 Negative voltage drive circuit
11/17/1998	US5838046 Operating method for ROM array which minimizes band-to-band tunneling
11/11/1998	CN1198574A Microcomputer capable of suppresing energy comsumption in capacity increasing of program memory
11/10/1998	US5835936 Single-chip flash-memory device using serial command, address, and data communcations
11/10/1998	US5835706 Method of controlling data writing into on-board microcomputer
11/10/1998	US5835402 Non-volatile storage for standard CMOS integrated circuits
11/10/1998	US5835398 Flat NOR type mask ROM having off-cells disposed at every predetermined number of memory cells
11/10/1998	US5835396 Three-dimensional read-only memory
11/10/1998	US5834970 In an integrated circuit
11/10/1998	US5834808 Non-volatile semiconductor memory device
11/05/1998	DE19755405A1 ROM with columns of memory cell groups
11/04/1998	EP0875903A1 Control method for memory cell and CMOS PROM
11/04/1998	CN1197985A Semiconductor read-only memory
11/03/1998	US5831933 Programmable semiconductor memory device
11/03/1998	US5831923 Antifuse detect circuit
11/03/1998	US5831905 Method for controlling erasure of nonvolatile semiconductor memory
11/03/1998	US5831903 Electrically erasable programmable read-only memory with threshold value controller for data programming and method of programming the same
11/03/1998	US5831893 Memory cell
11/03/1998	US5831892 Matrix memory in virtual ground architecture
11/03/1998	US5831844 High voltage generating circuit able to generate positive high voltage and negative high voltage at the same time
11/03/1998	US5831302 Voltage reference circuit
10/1998
10/29/1998	WO1998048427A1 Embedded rom with ram valid bits for fetching rom-code updates from external memory
10/29/1998	WO1998048426A1 A memory device having a power supply-independent low power consumption bit line voltage clamp

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