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Class Information
Number: 257/314
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Field effect device > Having insulated electrode (e.g., mosfet, mos diode) > Variable threshold (e.g., floating gate memory device)
Description: Subject matter wherein the device has a threshold voltage for current conduction which may be varied (e.g., by storage of charge in an insulator layer adjacent the channel in response to an electrical "write" signal).










Sub-classes under this class:

Class Number Class Name Patents
257/324 Multiple insulator layers (e.g., mnos structure) 1,532
257/315 With floating gate electrode 2,754


Patents under this class:

Patent Number Title Of Patent Date Issued
8710571 Polarity switching member of dot inversion system Apr. 29, 2014
8704314 Mechanical memory transistor Apr. 22, 2014
8704287 Semiconductor memory device and method of fabricating the same Apr. 22, 2014
8704286 Method and structure for integrating capacitor-less memory cell with logic Apr. 22, 2014
8691648 Methods for fabricating semiconductor memory with process induced strain Apr. 8, 2014
8686491 Memory devices capable of reducing lateral movement of charges Apr. 1, 2014
8686485 Semiconductor devices and methods of manufacturing the same Apr. 1, 2014
8685813 Method of integrating a charge-trapping gate stack into a CMOS flow Apr. 1, 2014
8680605 Stacked memory devices and method of manufacturing the same Mar. 25, 2014
8680602 Semiconductor device and method of manufacturing the same Mar. 25, 2014
8680601 Nonvolatile charge trap memory device having a deuterated layer in a multi-layer charge-trapping region Mar. 25, 2014
8674424 Memory device with charge storage layers at the sidewalls of the gate and method for fabricating the same Mar. 18, 2014
8669606 Semiconductor device and method for manufacturing thereof Mar. 11, 2014
8664708 EEPROM cell Mar. 4, 2014
8664707 Semiconductor device Mar. 4, 2014
8664702 Shallow trench isolation for a memory Mar. 4, 2014
8664640 Non-volatile memory device including semiconductor charge-trapping material particles Mar. 4, 2014
8659069 Gate structures Feb. 25, 2014
8659067 EEPROM cell Feb. 25, 2014
8658499 Three dimensional NAND device and method of charge trap layer separation and floating gate formation in the NAND device Feb. 25, 2014
8658496 Etch stop layer for memory cell reliability improvement Feb. 25, 2014
8654592 Memory devices with isolation structures Feb. 18, 2014
8654579 Non-volatile memory device and method of manufacturing the same Feb. 18, 2014
8653596 Integrated circuit including DRAM and SRAM/logic Feb. 18, 2014
8653585 Nonvolatile memory device including a channel pad having a channel extending portion and a spacer and method of manufacturing the same Feb. 18, 2014
8653578 Semiconductor device comprising string structures formed on active region Feb. 18, 2014
8653577 Nonvolatile semiconductor memory device Feb. 18, 2014
8653576 Method of fabricating a SONOS gate structure with dual-thickness oxide Feb. 18, 2014
8653574 Flash memory and method for fabricating the same Feb. 18, 2014
8652902 Floating gate semiconductor memory device and method for producing such a device Feb. 18, 2014
8648404 Nonvolatile semiconductor memory device, three-dimensional semiconductor device, and method of manufacturing the same Feb. 11, 2014
8644759 Offset cancellation for DC isolated nodes Feb. 4, 2014
8637917 Semiconductor devices including vertical channel pattern Jan. 28, 2014
8637914 Memory cells having a plurality of control gates and memory cells having a control gate and a shield Jan. 28, 2014
8637913 Nonvolatile memory device and method for fabricating the same Jan. 28, 2014
8637366 Nonvolatile memory cell without a dielectric antifuse having high- and low-impedance states Jan. 28, 2014
8634222 Memory devices having select gates with P type bodies, memory strings having separate source lines and methods Jan. 21, 2014
8633548 Non-volatile programmable memory cell and array for programmable logic array Jan. 21, 2014
8629491 Semiconductor memory device and method of manufacturing the same Jan. 14, 2014
8629489 Nonvolatile memory devices Jan. 14, 2014
8629385 Solid-state imaging element and driving method of the solid-state imaging element Jan. 14, 2014
8624317 Nonvolatile semiconductor memory device and method for manufacturing same Jan. 7, 2014
8624314 Semiconductor device and method for manufacturing semiconductor device Jan. 7, 2014
8624216 Planar electronic semiconductor device Jan. 7, 2014
8618596 Semiconductor memory device and method of fabricating the same Dec. 31, 2013
8614477 Nonvolatile semiconductor memory device Dec. 24, 2013
8614475 Void free interlayer dielectric Dec. 24, 2013
8614474 Thin film transistor memory and display unit including the same Dec. 24, 2013
8614473 Flash memory with recessed floating gate Dec. 24, 2013
8610194 Semiconductor device with vertical gate and method for fabricating the same Dec. 17, 2013











 
 
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