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7376011 Method and structure for efficient data verification operation for non-volatile memories  
An improved flash EEPROM memory-based storage subsystem includes one or more flash memory arrays, each with three data registers and a controller circuit. During a flash program operation, one data...
7376010 Nonvolatile semiconductor memory device having protection function for each memory block  
A nonvolatile semiconductor memory device includes a memory cell array constituted by a plurality of memory blocks, an interface, a write circuit, and a read circuit. A protect flag is written in...
7360049 Non-volatile semiconductor memory device having a password protection function  
In a nonvolatile semiconductor memory device according to the present invention, a password protection function is enabled or disabled based on a first specified value M and a second state...
7359232 Multi-context memory cell  
The multi-context memory cell comprises a first memory means for storing an item of data information and also a plurality of second memory means, it being possible for the data information stored...
7336542 Nonvolatile latch  
A nonvolatile latch includes a memory element for storing an input data value. A write protect element is coupled to the memory element for utilizing a write protect signal to ensure the input data...
7325114 Selectable block protection for non-volatile memory  
A semiconductor non-volatile memory device, particularly a flash memory array, having a chip configuration with a plurality of pins including a write protect pin, a serial in pin and an optional...
7319610 MTP storage medium and access algorithm method with traditional OTP  
A method for performing multi-programmable function with one-time programmable (OTP) memories includes: generating a newest word in a OTP memory array; receive a word-to-be-record; comparing the...
7310277 Non-volatile semiconductor storage device with specific command enable/disable control signal  
The non-volatile semiconductor storage device 101 includes the specific command Enable/Disable signal lines 120 connected to the command decoder 108 . The specific command Enable/Disable...
7307894 Semiconductor device and control method of the same  
The semiconductor device includes a memory cell array that includes memory cells for storing data and is managed on a sector basis, a memory that stores the information determining the activation...
7307880 One time programming memory cell using MOS device  
An electroless plating apparatus is provided. The electroless plating apparatus includes a wafer holder; a chemical dispensing nozzle over the wafer holder; a conduit connected to the chemical...
7295469 Nonvolatile semiconductor memory device with a ROM block settable in a write/erase inhibit mode  
A memory cell array has a first and a second storage area. The first storage area has a memory elements selected by an address signal. The second storage area has a memory elements selected by a...
7286398 Semiconductor device and method of controlling said semiconductor device  
A semiconductor device includes: groups of memory cells that are connected to word lines; and select gates that are controlled by control word lines and are connected to the groups of memory cells,...
7254086 Method for accessing memory  
The present invention provides a method for accessing a memory. The memory contains M one-time programmable memory blocks, and each has a first memory sector and a second memory sector. The method...
7230849 Data write apparatus for nonvolatile memory  
A data write apparatus for nonvolatile memory includes a control device for transmitting or receiving data, and a nonvolatile memory connected to the control device through a communication line,...
7228152 Memory system for portable telephone  
A memory system is constituted of a file storage flash memory storing a control program required for a control portion and a large amount of data, and a random access memory storing a program used...
7224602 Semiconductor memory device and control method having data protection feature  
A semiconductor device includes a first memory cell array that includes memory cells for storing data and is managed on a sector basis, a second memory cell array including memory cells storing...
7187582 Erroneous operation preventing circuit of non-volatile memory device  
An erroneous operation preventing circuit of an electrically rewritable non-volatile memory device is for setting one or more operational modes of a plurality of operational modes including at...
7180777 System and method for destructive purge of memory device  
A memory purge system destructively purges the memory circuits of a memory device. The system includes a power supply for supplying a selectable voltage and current. Switching circuits electrically...
7180776 Systems and methods for programming a secured CPLD on-the-fly  
On-the-fly reconfiguration of a secured CPLD. In one embodiment, a CPLD includes a novel security circuit that provides two different security control signals: an EEPROM/SRAM security signal and an...
7177187 Semiconductor device having a nonvolatile memory array and an authentication circuit arranged in a vertical stack configuration  
A data processor includes an authentication circuit for judging access right. The data processor further includes a nonvolatile memory cell array formed on an insulator film of a chip, and a...
7145799 Chip protection register unlocking  
An improved Flash memory device is described with a protection register lock bit erase enable circuit. A bond pad coupled to the lock bit erase enable circuit of the improved Flash memory is not...
7142452 Method and system for securing data in a multi-time programmable non-volatile memory device  
A method and system for storing secure data in a multi-time programmable, non-volatile electrically-alterable memory device are disclosed. Accordingly, in an embodiment, a memory device may include...
7135886 Field programmable gate arrays using both volatile and nonvolatile memory cell properties and their control  
The embodiments of the present invention relate to the general area of Field Programmable Gate Arrays and, in particular, to Field Programmable Gate Arrays (“FPGAs”) comprising memory cells...
7123511 Systems and methods for write protection of non-volatile memory devices  
A write protection mechanism may be implemented that is external to a non-volatile memory device and/or that is external to controller/s that interface with the non-volatile memory device, thus...
7120053 Semiconductor intergrated circuit device with a main cell array and a fuse cell array whose word lines and bit lines are extended in the same directions  
A semiconductor integrated circuit device includes a main cell array, a fuse cell array, main cell word lines arranged at the main cell array, and fuse cell word lines arranged at the fuse cell...
7106627 Nonvolatile semiconductor memory device with redundancy and security information circuitry  
A memory cell array has a first and a second storage area. The first storage area has memory elements selected by an address signal. The second storage area has memory elements selected by a...
7102925 Flash memory device  
A flash memory device including a boot location select signal for selecting location of a boot region is generated by coding it in a CFI block, generated depending on the state of the OTP cell in...
7092288 Non-volatile memory array with simultaneous write and erase feature  
A non-volatile transistor memory array has individual cells with a current injector and a non-volatile memory transistor. Injector current gives rise to charged particles that can be stored in the...
7085158 Nonvolatile semiconductor memory device and one-time programming control method thereof  
A nonvolatile semiconductor memory device is provided, comprising a nonvolatile memory cell array which has a one-time programming region accessed in response to a first decoding signal and a...
7085155 Secured phase-change devices  
An electronic device for securing the contents of data storage and processing elements. The device includes a security element and a phase-change element connected in a parallel arrangement. The...
7072211 Systems and methods for write protection of non-volatile memory devices  
A write protection mechanism may be implemented that is external to a non-volatile memory device and/or that is external to controller/s that interface with the non-volatile memory device, thus...
7068538 Memory circuit with non-volatile identification memory and associated method  
A memory circuit comprising a memory area for storing data, a non-volatile memory area for storing at least one identification code, and a pin for storing the identification code in the...
7046570 Programmable logic devices optionally convertible to one time programmable devices  
Programmable logic devices (PLDs) that can be repeatedly erased and reprogrammed, e.g., during the testing and/or design phases, and then converted to one-time programmable (OTP) devices on a...
7036005 Method and apparatus for modifying the contents of revision identification register  
An embodiment for modifying the contents of a revision identification register includes a revision identification register that is both readable and writable (the contents of the revision...
7032039 Method for identification of SPI compatible serial memory devices  
A method for identifying Serial Peripheral Interface (SPI) compatible serial interface memory devices. A microprocessor sends a single command requesting identification information to an SPI device...
7031188 Memory system having flash memory where a one-time programmable block is included  
A memory system includes a flash memory device and an interface device. The flash memory device includes a one-time programmable block where protection data information is stored in a predetermined...
7020019 System and method for destructive purge of memory device  
A memory purge system destructively purges the memory circuits of a memory device. The system includes a power supply for supplying a selectable voltage and current. Switching circuits electrically...
7009879 Test terminal negation circuit for protecting data integrity  
A test terminal negation circuit comprises a switch circuit which receives a test signal from a test terminal and outputs it in an asserted state as it is or in a predetermined negated state to a...
7006377 Apparatus and method for booting NAND flash memory of a mobile terminal  
An apparatus and method for booting a NAND flash memory of a mobile terminal. The apparatus comprises a NAND flash memory, a synchronous dynamic random access memory (SDRAM), a main read only...
6996006 Semiconductor memory preventing unauthorized copying  
A memory mat is provided separately from a memory mat that is a normal memory area, and data therein cannot be read from the outside. In a page buffer, information input from the outside is stored....
6990026 Data processing apparatus and memory card  
A CPU locks a memory card attached to a card mount with a password by a lock/unlock processing according to an access limit application program, and unlocks the lock based on a predetermined...
6970386 Method and apparatus for detecting exposure of a semiconductor circuit to ultra-violet light  
A method and apparatus are disclosed for detecting if a semiconductor circuit has been exposed to ultra-violet light. An ultra-violet light detection circuit detects exposure to ultra-violet light...
6970381 Semiconductor memory  
A semiconductor memory in which the protection state of data in a nonvolatile memory can be changed quickly and which provides sufficient security. A volatile protection state specification section...
6963501 Nonvolatile memory  
An aspect of the present invention provides a nonvolatile memory that includes a memory cell array including a data storage area to store a data, and a data invert flag storage area to store a data...
6956773 Circuit for programming a non-volatile memory device with adaptive program load control  
A circuit ( 115,145,150 ), for programming a non-volatile memory device ( 100 ) having a plurality of memory cells ( 105 ), includes a plurality of driving elements ( 115 ) each one for applying a...
6950345 Nonvolatile semiconductor memory device  
A nonvolatile semiconductor memory device with a function of executing a verify operation for write data that is input from outside includes a memory cell array including memory cells arranged in a...
6947323 Chip protection register unlocking  
An improved Flash memory device is described with a protection register lock bit erase enable circuit. A bond pad coupled to the lock bit erase enable circuit of the improved Flash memory is not...
6940764 Memory with a bit line block and/or a word line block for preventing reverse engineering  
A method and circuit for blocking unauthorized access to at least one memory cell in a semiconductor memory. The method includes providing a switch and/or a link which assumes an open state when...
6906960 Semiconductor memory device  
A semiconductor memory device includes: a plurality of banks with electrically rewritable memory cells arranged therein, the banks being configured to be simultaneously accessible in such a manner...
6898125 Semiconductor device and method for driving the same  
A semiconductor device has a memory cell array composed of a plurality of electrically rewritable nonvolatile memory cells and output disabling means for disabling data held in the memory cell...
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