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)
01/1982
01/19/1982US4312047 Memory array having improved isolation between sense lines
01/19/1982US4312046 Vertical fuse and method of fabrication
01/06/1982EP0042964A1 Memory matrix using one-transistor floating gate MOS cells
12/1981
12/30/1981EP0042604A2 Selective access array integrated circuit
12/29/1981US4308596 Memory driving method
12/16/1981EP0041770A2 A programmable read-only-memory element and method of fabrication thereof
12/16/1981EP0041603A1 Read only storage matrix
12/10/1981WO1981003571A1 Memory array having improved isolation between sense lines
12/08/1981US4305139 State detection for storage cells
12/02/1981EP0040701A1 FET cell usable in storage or switching devices
11/1981
11/25/1981EP0040495A1 Read-only memory device
11/25/1981EP0040251A1 Semiconductor memory device
11/18/1981EP0040045A1 Read-only memory device
11/18/1981EP0039733A1 Quiet row select circuitry
11/17/1981US4301535 Programmable read only memory integrated circuit with bit-check and deprogramming modes and methods for programming and testing said circuit
11/17/1981US4301518 Differential sensing of single ended memory array
11/11/1981EP0039449A1 A memory refreshing arrangement
10/1981
10/20/1981CA1111147A1 Method of modifying electrical characteristics of mos devices using ion implantation
10/13/1981US4295209 Silicon nitride, glass, layers
10/13/1981US4294001 Method of making implant programmable metal gate MOS read only memory
10/13/1981EP0025054A4 Static volatile/non-volatile ram system.
10/07/1981EP0036868A1 Program decoder for shared contact eprom
10/06/1981US4293783 Storage/logic array
10/06/1981US4292729 Electron-beam programmable semiconductor device structure
09/1981
09/22/1981US4291326 Semiconductor device
09/22/1981US4291119 Recording material
09/22/1981US4290184 Method of making post-metal programmable MOS read only memory
09/16/1981EP0035646A2 Integrated semiconductor memory matrix using one-FET cells
09/15/1981US4289982 Apparatus for programming a dynamic EPROM
09/09/1981EP0035160A1 Semi-conductor floating gate memory cell with write and erase electrodes
09/01/1981US4287571 High density transistor arrays
09/01/1981US4287570 Multiple bit read-only memory cell and its sense amplifier
09/01/1981US4287569 Semiconductor memory device
08/1981
08/20/1981WO1981002360A1 Block redundancy for memory array
08/19/1981EP0034070A2 Fault tolerant memory system
08/11/1981US4282646 Method of making a transistor array
08/05/1981EP0032958A1 Semiconductor memory device
08/04/1981US4282446 High density floating gate EPROM programmable by charge storage
07/1981
07/28/1981US4281398 Block redundancy for memory array
07/28/1981US4281397 Virtual ground MOS EPROM or ROM matrix
07/15/1981EP0032015A2 Field programmable device with test-bits
07/14/1981US4279024 Word-by-word electrically reprogrammable nonvolatile memory
07/14/1981US4278756 Reflective data storage medium made by silver diffusion transfer
07/08/1981EP0031643A1 Semiconductor memory device
07/08/1981EP0031539A2 Voltage distribution system of an LSI chip
07/08/1981EP0031496A2 Cell state detection for binary signal storage device
07/08/1981EP0031492A2 Semi-conductor memory matrix with static memory cells
07/08/1981EP0031380A1 Programmable read only memory integrated circuit with bit-check and deprogramming modes and methods for programming and testing said circuit.
07/01/1981EP0031024A1 High density integrated permanent memory
06/1981
06/30/1981CA1104264A1 Data processing system with improved bit field handling
06/17/1981EP0030280A1 Matrix array of semiconductor elements
06/16/1981US4274147 Static read only memory
06/10/1981EP0029855A1 Microcomputer with mpu-programmable eprom.
06/09/1981US4272303 Method of making post-metal ion beam programmable MOS read only memory
06/03/1981EP0029716A2 Semiconductor prom device
06/02/1981US4271421 High density N-channel silicon gate read only memory
05/1981
05/28/1981WO1981001484A1 Semiconductor memory device
05/28/1981WO1981001482A1 Quiet row select circuitry
05/26/1981US4270190 Small signal memory system with reference signal
05/26/1981US4270189 Read only memory circuit
05/26/1981US4270188 Nonvolatile semiconductor memory apparatus
05/20/1981EP0028916A2 A semiconductor memory device
05/19/1981US4268911 ROM Program security circuits
05/13/1981EP0028313A2 Integral memory circuit with a single pulse train timing control
04/1981
04/21/1981US4263663 VMOS ROM Array
03/1981
03/31/1981US4259731 Quiet row selection circuitry
03/25/1981EP0025717A2 A semiconductor device comprising two insulating films and process for producing the same
03/24/1981US4258429 Multiphase clocking for MOS electronic calculator or digital processor chip
03/19/1981WO1981000783A1 Program decoder for shared contact eprom
03/18/1981EP0025347A2 Semiconductor devices having fuses
03/18/1981EP0025155A2 Nonvolatile semiconductor memory device
03/18/1981EP0025130A2 High-density read-only memory
03/18/1981EP0025054A1 Static volatile/non-volatile ram system
03/11/1981EP0024436A1 Sequence control data conversion apparatus
03/10/1981US4255210 Method for manufacturing a read-only memory device
03/10/1981CA1097415A1 Matrix terminal block
03/04/1981EP0024311A2 Process for producing a high-density integrated read-only memory
03/03/1981US4254427 Semiconductor device having a compact read-only memory
02/1981
02/24/1981US4253059 EPROM Reliability test circuit
02/19/1981WO1981000490A1 Semiconductor memory device
02/18/1981EP0024001A2 Fast MOS transistors circuitry for fast detection of the logical state of a data line
02/11/1981EP0023821A2 Apparatus and method for checking a memory and a computer system including a memory and apparatus for checking the memory
02/11/1981EP0023798A2 An address buffer circuit
02/11/1981EP0023782A2 Semiconductor device comprising EAROM cells
01/1981
01/27/1981US4247918 Electrically alterable nonvolatile memory
01/22/1981WO1981000154A1 Programmable read only memory integrated circuit with bitcheck and deprogramming modes and methods for programming and testing said circuit
01/13/1981US4245165 Reversible electrically variable active parameter trimming apparatus utilizing floating gate as control
01/07/1981EP0021776A1 Semiconductor memory device and method of making same
01/07/1981EP0020648A1 Read-only memory with field effect transistors having variable conductance value channels.
01/06/1981US4243937 Microelectronic device and method for testing same
12/1980
12/30/1980US4242605 Transient array drive for bipolar ROM/PROM
12/24/1980WO1980002881A1 Microcomputer with mpu-programmable eprom
12/23/1980CA1092247A1 Zero detector
12/23/1980CA1092240A1 Semiconductor memory device
12/16/1980US4240151 Semiconductor read only memory
12/10/1980EP0020054A1 Semiconductor memory device using one transistor memory cell
12/10/1980EP0019987A1 High speed IGFET sense amplifier/latch
12/09/1980US4238839 Laser programmable read only memory
12/09/1980US4238694 Silicon or gallium arsenide
12/02/1980US4237547 Program decoder for shared contact eprom
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