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Class Information
Number: 257/E21.68
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of devices consisting of plurality of solid-state components formed in or on common substrate or of parts thereof; manufacture of integrated circuit devices or of parts thereof (epo) > Manufacture or treatment of devices consisting of plurality of solid-state components or integrated circuits formed in, or on, common substrate (epo) > With subsequent division of substrate into plural individual devices (epo) > To produce devices each consisting of plurality of components, e.g., integrated circuits (epo) > Substrate being semiconductor, using silicon technology (epo) > Field-effect technology (epo) > Mis technology (epo) > Dynamic random access memory structures (dram) (epo) > Read-only memory structures (rom), i.e., nonvolatile memory structures (epo) > Electrically programmable (eprom), i.e., floating gate memory structures (epo)
Description: This subclass is indented under subclass E21.662. This subclass is substantially the same in scope as ECLA classification H01L21/8247.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.681 With conductive layer as control gate (epo) 72
257/E21.694 With doped region as control gate (epo) 99


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8703566 Transistors comprising a SiC-containing channel Apr. 22, 2014
8674414 Three-dimensional nonvolatile memory devices including interposed floating gates Mar. 18, 2014
8664059 Non-volatile memory device formed by dual floating gate deposit Mar. 4, 2014
8633548 Non-volatile programmable memory cell and array for programmable logic array Jan. 21, 2014
8629018 Methods of forming NAND memory constructions Jan. 14, 2014
8623671 ALD processing techniques for forming non-volatile resistive switching memories Jan. 7, 2014
8610193 Semiconductor constructions, NAND unit cells, methods of forming semiconductor constructions, and methods of forming NAND unit cells Dec. 17, 2013
8592275 Semiconductor device and production method thereof Nov. 26, 2013
8592889 Memory structure Nov. 26, 2013
8592885 Nonvolatile semiconductor memory device and method for manufacturing the same Nov. 26, 2013
8587036 Non-volatile memory and fabricating method thereof Nov. 19, 2013
8574992 Contact architecture for 3D memory array Nov. 5, 2013
8546275 Atomic layer deposition of hafnium and zirconium oxides for memory applications Oct. 1, 2013
8541829 Nonvolatile semiconductor memory and fabrication method for the same Sep. 24, 2013
8519464 Non-volatile memory device and method for fabricating the same Aug. 27, 2013
8502296 Non-volatile memory cell with asymmetrical split gate and related system and method Aug. 6, 2013
8497544 Repairing defects in a nonvolatile semiconductor memory module utilizing a heating element Jul. 30, 2013
8481388 Non-volatile memory device having a nitride-oxide dielectric layer Jul. 9, 2013
8481338 ALD processing techniques for forming non-volatile resistive-switching memories Jul. 9, 2013
8450783 Semiconductor device May. 28, 2013
8426263 Patterning a gate stack of a non-volatile memory (NVM) with formation of a metal-oxide-semiconductor field effect transistor (MOSFET) Apr. 23, 2013
8426270 Memory device with a textured lowered electrode Apr. 23, 2013
8426272 Non-volatile memory devices including shared bit lines and methods of fabricating the same Apr. 23, 2013
8426906 Method and structure for a semiconductor charge storage device Apr. 23, 2013
8421144 Electrically erasable programmable read-only memory and manufacturing method thereof Apr. 16, 2013
8409944 Process of forming an electronic device including a nonvolatile memory cell having a floating gate electrode or a conductive member with different portions Apr. 2, 2013
8394683 Methods of forming semiconductor constructions, and methods of forming NAND unit cells Mar. 12, 2013
8357966 Semiconductor device and method for manufacturing semiconductor device Jan. 22, 2013
8350344 Semiconductor device and method of fabricating the same Jan. 8, 2013
8338244 Methods of fabricating three-dimensional nonvolatile memory devices using expansions Dec. 25, 2012
8329530 Method and system for providing contact to a first polysilicon layer in a flash memory device Dec. 11, 2012
8314457 Non-volatile memory devices Nov. 20, 2012
8288225 Method of reducing coupling between floating gates in nonvolatile memory Oct. 16, 2012
8288297 Atomic layer deposition of metal oxide materials for memory applications Oct. 16, 2012
8274108 Nonvolatile semiconductor memory device and method for manufacturing the same Sep. 25, 2012
8268686 Nonvolatile semiconductor memory device with twin-well Sep. 18, 2012
8264025 Nonvolatile memory device and method of forming the nonvolatile memory device including giving an upper portion of an insulating layer an etching selectivity with respect to a lower portion Sep. 11, 2012
8247860 Nonvolatile semiconductor memory device and method for manufacturing same Aug. 21, 2012
8247862 Method of enhancing charge storage in an E.sup.2PROM cell Aug. 21, 2012
8211755 Method for multi-level interconnection memory device Jul. 3, 2012
8198662 Semiconductor memory device and method of manufacturing the same Jun. 12, 2012
8198667 Semiconductor memory device and method for manufacturing same Jun. 12, 2012
8193573 Repairing defects in a nonvolatile semiconductor memory device utilizing a heating element Jun. 5, 2012
8188530 Nonvolatile semiconductor memory device and method for manufacturing same May. 29, 2012
8183110 Memory cells, methods of forming dielectric materials, and methods of forming memory cells May. 22, 2012
8173505 Method of making a split gate memory cell May. 8, 2012
8169018 Non-volatile memory device May. 1, 2012
8164135 Non-diffusion junction split-gate nonvolatile memory cells and arrays, methods of programming, erasing, and reading thereof, and methods of manufacture Apr. 24, 2012
8143122 Nonvolatile semiconductor memory and method of manufacturing the same Mar. 27, 2012
8119479 Scalable flash EEPROM memory cell with floating gate spacer wrapped by control gate and method of manufacture Feb. 21, 2012

1 2 3 4 5 6 7 8 9 10 11










 
 
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