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Class Information
Number: 257/390
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > Insulated gate field effect transistor in integrated circuit > Matrix or array of field effect transistors (e.g., array of fets only some of which are completed, or structure for mask programmed read-only memory (rom))
Description: Subject matter wherein the integrated circuit contains a two dimensional array of IGFETs, only some of which are completed devices, or the integrated circuit contains structure for a mask programmed read-only memory device.


Sub-classes under this class:

Class Number Class Name Patents
257/391 Selected groups of complete field effect devices having different threshold voltages (e.g., different channel dopant concentrations) 346


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
7619286 Liquid crystal display device and method of fabricating the same Nov. 17, 2009
7619287 Method of forming a low capacitance semiconductor device and structure therefor Nov. 17, 2009
7612438 Active matrix substrate with height control member Nov. 3, 2009
7605430 Nonvolatile memory devices having a fin shaped active region and methods of fabricating the same Oct. 20, 2009
7605434 Semiconductor memory device to which test data is written Oct. 20, 2009
7602028 NAND flash memory devices having 3-dimensionally arranged memory cells and methods of fabricating the same Oct. 13, 2009
7602010 Multi-bit multi-level non-volatile memory device and methods of operating and fabricating the same Oct. 13, 2009
7598541 Semiconductor device comprising transistor pair isolated by trench isolation Oct. 6, 2009
7592661 CMOS embedded high voltage transistor Sep. 22, 2009
7588987 Semiconductor device and method for fabricating the same Sep. 15, 2009
7589368 Three-dimensional memory devices Sep. 15, 2009
7569889 Memory integrated circuit, in particular an SRAM memory integrated circuit, and corresponding fabrication process Aug. 4, 2009
7563699 Semiconductor devices having line type active regions and methods of fabricating the same Jul. 21, 2009
7554151 Low voltage non-volatile memory cell with electrically transparent control gate Jun. 30, 2009
7553728 Method of fabricating a non-volatile semiconductor memory Jun. 30, 2009
7547935 Semiconductor devices including buried digit lines that are laterally offset from corresponding active-device regions Jun. 16, 2009
7547936 Semiconductor memory devices including offset active regions Jun. 16, 2009
7545019 Integrated circuit including logic portion and memory portion Jun. 9, 2009
7541653 Mask ROM devices of semiconductor devices and method of forming the same Jun. 2, 2009
7541649 Semiconductor device having SOI substrate Jun. 2, 2009
7541654 Semiconductor memory device and semiconductor device including multilayer gate electrode Jun. 2, 2009
7538368 Standard cell, standard cell library, and semiconductor integrated circuit with suppressed variation in characteristics May. 26, 2009
7531867 Method for forming an integrated memory device and memory device May. 12, 2009
7528452 Semiconductor memory May. 5, 2009
7525137 TFT mask ROM and method for making same Apr. 28, 2009
7521764 One-time programmable memory device Apr. 21, 2009
7511340 Semiconductor devices having gate structures and contact pads that are lower than the gate structures Mar. 31, 2009
7504688 Semiconductor device with integrated flash memory and peripheral circuit and its manufacture method Mar. 17, 2009
7495294 Flash devices with shared word lines Feb. 24, 2009
7495296 Semiconductor integrated circuit device Feb. 24, 2009
7489010 Semiconductor memory device Feb. 10, 2009
7489027 Accessible electronic storage apparatus Feb. 10, 2009
7485935 Semiconductor memory device Feb. 3, 2009
7482630 NAND memory arrays Jan. 27, 2009
7476943 Semiconductor device having diffusion layers as bit lines and method for manufacturing the same Jan. 13, 2009
7476945 Memory having reduced memory cell size Jan. 13, 2009
7453125 Double mesh finfet Nov. 18, 2008
7442997 Three-dimensional memory cells Oct. 28, 2008
7439594 Stacked non-volatile memory with silicon carbide-based amorphous silicon thin film transistors Oct. 21, 2008
7436078 Line layout structure of semiconductor memory device Oct. 14, 2008
7436032 Semiconductor integrated circuit comprising read only memory, semiconductor device comprising the semiconductor integrated circuit, and manufacturing method of the semiconductor integrated cir Oct. 14, 2008
RE40532 Non-volatile memory cell and fabrication method Oct. 7, 2008
7432561 Non-volatile semiconductor memory and method for manufacturing a non-volatile semiconductor memory Oct. 7, 2008
7420248 Programmable random logic arrays using PN isolation Sep. 2, 2008
7417283 CMOS device with dual polycide gates and method of manufacturing the same Aug. 26, 2008
7411255 Dopant barrier for doped glass in memory devices Aug. 12, 2008
7411284 Accessible electronic storage apparatus Aug. 12, 2008
7408230 EEPROM device having first and second doped regions that increase an effective channel length Aug. 5, 2008
7405470 Adaptable electronic storage apparatus Jul. 29, 2008
7399678 Method for reading an array of multi-bit ROM cells with each cell having bi-directional read Jul. 15, 2008

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