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)
11/1993
11/30/1993US5267207 Electrically programmable read only memory device with reliable sense amplifier circuit
11/30/1993US5267202 Reading device for EPROM memory cells with the operational field independent of the threshold jump of the written cells with respect to the virgin cells
11/25/1993WO1993023806A1 Method and apparatus for reducing memory wearout in a computer system
11/24/1993CN1078821A Music player with chip memory as carrier
11/23/1993US5265062 Row decoder circuit for non-volatile memory device
11/23/1993US5265061 Apparatus for preventing glitch for semiconductor non-volatile memory device
11/23/1993US5264741 Low current, fast, CMOS static pullup circuit for static random-access memories
11/18/1993EP0569658A1 Signals generator having not-overlapping phases and high frequency
11/16/1993US5263000 Drain power supply
11/16/1993US5262984 Non-volatile memory device capable of storing multi-state data
11/16/1993US5262919 Semiconductor memory device including programming circuitry
11/09/1993US5261055 Externally updatable ROM (EUROM)
11/02/1993US5258959 Memory cell reading circuit
11/02/1993US5258949 Nonvolatile memory with enhanced carrier generation and method for programming the same
11/02/1993US5258947 MOS fuse with programmable tunnel oxide breakdown
10/1993
10/26/1993US5257225 Method for programming programmable devices by utilizing single or multiple pulses varying in pulse width and amplitude
10/26/1993US5257222 Antifuse programming by transistor snap-back
10/19/1993US5255237 Method of erasing a nonvolatile semiconductor storage
10/19/1993US5255236 Ultraviolet radiation windows
10/19/1993US5255233 Non-volatile semiconductor memory device equipped with sense amplifier circuit for discriminating small differential voltage level
10/19/1993US5255222 Output control circuit having continuously variable drive current
10/14/1993DE4311705A1 NOR or NAND type mask ROM - has two transistors of high and low threshold respectively, with two impurity atom regions and common impurity atom region, all of opposite conductivity to that of substrate
10/13/1993EP0565024A2 Row decoder for driving word line at a plurality of points thereof
10/12/1993US5253210 Paritioned bit line structure of EEPROM and method of reading data therefrom
10/12/1993US5253206 Electrically erasable programmable read-only memory with threshold value measurement circuit
10/12/1993US5253201 Writing control circuit employed in non-volatile semiconductor memory device
10/07/1993DE4302223A1 Semiconductor flash EPROM used as one-time programmable ROM if cells excessively erased - has information memory indicating if cell has been classified as over-erased by energy beam or not during testing
10/07/1993DE4242810A1 Elektrisch löschbares und programmierbares "Read Only Memory" mit einem Fehlerprüf- und Korrektur-Schaltkreis Electrically erasable and programmable "Read Only Memory" with error checking and correction circuit
10/06/1993CN1077049A Electrically erasable and programmable read only memory with an error check and correction circuit
10/05/1993US5251169 Non-volatile erasable and programmable interconnect cell
10/05/1993US5250857 Dynamic logic circuit with reduced operating current
09/1993
09/28/1993US5249158 Flash memory blocking architecture
09/28/1993US5248908 3-state bidirectional buffer and portable semiconductor storage device incorporating the same
09/21/1993US5247483 Sense amplifier circuit
09/21/1993US5247477 Method of programming floating gate memory devices aided by potential applied to read channel
09/21/1993US5247476 Semiconductor memory device having a mask rom and a prom
09/21/1993US5247213 Programmable sense amplifier power reduction
09/21/1993CA1322414C Programmable memory data protection scheme
09/16/1993WO1993018553A1 Method for reducing resistance for programmed antifuse
09/16/1993WO1993018519A1 Electrically programmable memory cell
09/16/1993WO1993018518A1 A floating gate memory array device having improved immunity to write disturbance
09/14/1993US5245572 Floating gate nonvolatile memory with reading while writing capability
09/14/1993US5245570 Floating gate non-volatile memory blocks and select transistors
09/07/1993US5243575 Address transition detection to write state machine interface circuit for flash memory
09/07/1993US5243573 Sense amplifier for nonvolatile semiconductor storage devices
09/07/1993US5243569 Differential cell-type eprom incorporating stress test circuit
09/07/1993US5243226 Programming of antifuses
09/02/1993WO1993017435A1 Semiconductor memory
09/02/1993WO1993017389A1 Externally updatable rom (eurom)
09/01/1993EP0557968A2 Method of rewriting data in EEPROM, and EEPROM card
09/01/1993EP0557736A2 A method and system for file system management using a flash-erasable, programmable, read-only memory
08/1993
08/31/1993US5241507 One transistor cell flash memory assay with over-erase protection
08/31/1993US5241505 Read only memory device with high speed data output unit
08/31/1993US5241498 Non-volatile semiconductor memory device
08/31/1993US5241497 VLSI memory with increased memory access speed, increased memory cell density and decreased parasitic capacitance
08/31/1993US5241496 Array of read-only memory cells, eacch of which has a one-time, voltage-programmable antifuse element constructed within a trench shared by a pair of cells
08/25/1993CN1075572A Nonvolatile semiconductor memory device and an optimizing programming method thereof
08/24/1993US5239657 Counted value storage system with recirculative addressing
08/17/1993US5237535 Method of repairing overerased cells in a flash memory
08/17/1993US5237530 Frasable non-volatile semiconductor memory device having read/write test function
08/11/1993EP0555039A2 Alternate metal/source virtual ground flash EPROM cell array
08/10/1993CA1321247C Ecl eprom with cmos programming
08/03/1993US5233610 Semiconductor memory device having error correcting function
08/03/1993US5233561 Composite semiconductor storage device and operating method therefor
08/03/1993US5233559 Row redundancy for flash memories
08/03/1993US5233206 Double digitlines for multiple programming of prom applications and other anti-fuse circuit element applications
07/1993
07/28/1993EP0552964A2 Reference circuit
07/27/1993US5231603 Variable page ROM
07/27/1993US5231592 Counter
07/22/1993WO1993014555A1 Feedback circuit for cmos high voltage generator to program (e)eprom-memory cells
07/22/1993WO1993014521A1 Eeprom with split gate source side injection
07/22/1993CA2127803A1 Feedback circuit for cmos high voltage generator to program (e)eprom-memory cells
07/20/1993US5229972 Nonvolatile semiconductor memory system
07/20/1993US5229968 Nonvolatile semiconductor memory wherein dummy cells are used for generating a potential for detecting data
07/14/1993EP0550751A1 Nonvolatile semiconductor memory
07/14/1993EP0250479B1 Current metering apparatus
07/07/1993EP0550404A1 A method of making a capacitive coupling device, especially in an EEPROM
07/06/1993US5226015 Semiconductor memory system
07/06/1993US5226014 Low power pseudo-static ROM
06/1993
06/30/1993EP0549193A2 Nonvolatile semiconductor memory device with redundancy
06/30/1993EP0548866A2 Non-volatile semiconductor memory device
06/30/1993EP0548681A2 Recording and reproducing apparatus provided with a batch erasable nonvolatile semiconductor memory device for batch erasing of specific data group(s)
06/29/1993US5224070 Apparatus for determining the conditions of programming circuitry used with flash EEPROM memory
06/23/1993EP0547806A2 Semiconducteur integrated circuit
06/23/1993EP0547711A2 Electrically erasable and programmable read-only memory with source and drain regions along sidewalls of a trench structure
06/22/1993US5222109 Nonvolatile storage means
06/22/1993US5222040 Single transistor eeprom memory cell
06/19/1993CA2084713A1 Semiconductor integrated circuit
06/16/1993EP0546048A1 Method and device for updating information in a memory and use thereof in memory cards.
06/15/1993US5220533 Method and apparatus for preventing overerasure in a flash cell
06/10/1993WO1993011540A1 Nonvolatile random access memory device
06/10/1993WO1993011491A1 Memory card device
06/09/1993EP0545074A2 Method for producing electrically erasable and programmable read-only memory cells with a single polysilicon level
06/08/1993US5218570 Sense circuit for reading data stored in nonvolatile memory cells
06/02/1993EP0544252A2 Data management system for programming-limited type semiconductor memory and IC memory card having the data management system
06/01/1993US5216633 Nonvolatile semiconductor memory device including access code circuitry
06/01/1993US5215934 Process for reducing program disturbance in eeprom arrays
05/1993
05/26/1993EP0543703A1 Single-transistor electrically programmable integrated memory
05/26/1993EP0542856A1 Integrated memory having improved testing means.
05/25/1993US5214606 Non-volatile semiconductor memory and method for driving the same
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