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Class Information
Number: 257/E21.422
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 semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for the manufacture of unipolar device (epo) > Field-effect transistor (epo) > With an insulated gate (epo) > With floating gate (epo)
Description: This subclass is indented under subclass E21.409. This subclass is substantially the same in scope as ECLA classification H01L21/336F.










Patents under this class:

Patent Number Title Of Patent Date Issued
8354335 Apparatus and associated method for making a floating gate cell with increased overlay between the control gate and floating gate Jan. 15, 2013
8354318 Semiconductor memory device and method of fabrication of the same Jan. 15, 2013
8349686 Nonvolatile semiconductor memory device and method of manufacturing the same Jan. 8, 2013
8338244 Methods of fabricating three-dimensional nonvolatile memory devices using expansions Dec. 25, 2012
8334560 Reverse disturb immune asymmetrical sidewall floating gate devices Dec. 18, 2012
8330207 Flash memory device including multilayer tunnel insulator and method of fabricating the same Dec. 11, 2012
8329530 Method and system for providing contact to a first polysilicon layer in a flash memory device Dec. 11, 2012
8324676 Memory cell storage node length Dec. 4, 2012
8324675 Flash memory device having vertical channel structure Dec. 4, 2012
8324051 Methods of manufacturing NOR-type nonvolatile memory devices including impurity expansion regions Dec. 4, 2012
8319267 Device including nonvolatile memory element Nov. 27, 2012
8283224 Ammonia pre-treatment in the fabrication of a memory cell Oct. 9, 2012
8278696 Semiconductor device and method of manufacturing the same Oct. 2, 2012
8274108 Nonvolatile semiconductor memory device and method for manufacturing the same Sep. 25, 2012
8273665 Nonvolatile memory device using semiconductor nanocrystals and method forming same Sep. 25, 2012
8273625 Structure for flash memory cells Sep. 25, 2012
8268685 NAND flash memory device and method of manufacturing the same Sep. 18, 2012
8264029 Convex shaped thin-film transistor device Sep. 11, 2012
8258565 Nonvolatile semiconductor memory device and fabricating the same Sep. 4, 2012
8247857 Nonvolatile semiconductor memory device and method for manufacturing same Aug. 21, 2012
8247292 Nonvolative memory device using semiconductor nanocrystals and method of forming same Aug. 21, 2012
8241975 System and method for providing low voltage high density multi-bit storage flash memory Aug. 14, 2012
8241974 Nonvolatile memory device with multiple blocking layers and method of fabricating the same Aug. 14, 2012
8236647 Method for fabricating nonvolatile memory device Aug. 7, 2012
8236646 Non-volatile memory manufacturing method using STI trench implantation Aug. 7, 2012
8223546 Multi-dot flash memory Jul. 17, 2012
8222687 Nonvolatile semiconductor storage device and method of manufacture thereof Jul. 17, 2012
8222678 Semiconductor structure Jul. 17, 2012
8211762 Non-volatile memory Jul. 3, 2012
8183106 Apparatus and associated method for making a floating gate memory device with buried diffusion dielectric structures and increased gate coupling ratio May. 22, 2012
8173505 Method of making a split gate memory cell May. 8, 2012
8163609 Nanocrystal memory with differential energy bands and method of formation Apr. 24, 2012
8148768 Non-volatile memory cell with self aligned floating and erase gates, and method of making same Apr. 3, 2012
8138077 Flash memory device and method of fabricating the same Mar. 20, 2012
8138044 Method for manufacturing semiconductor flash memory and flash memory cell Mar. 20, 2012
8134177 Switching element, semiconductor device and method of manufacturing the same Mar. 13, 2012
8133782 Nonvolatile semiconductor memory device and manufacturing method thereof Mar. 13, 2012
8120091 Non-volatile memory devices including a floating gate and methods of manufacturing the same Feb. 21, 2012
8114735 Method of manufacturing a non-volatile memory device Feb. 14, 2012
8110465 Field effect transistor having an asymmetric gate electrode Feb. 7, 2012
8089116 FLOTOX-TYPE EEPROM and method for manufacturing the same Jan. 3, 2012
8084785 III-nitride power semiconductor device having a programmable gate Dec. 27, 2011
8084326 Method for manufacturing semiconductor device Dec. 27, 2011
8084303 Semiconductor device and a method of manufacturing the same Dec. 27, 2011
8068370 Floating gate memory device with interpoly charge trapping structure Nov. 29, 2011
8062944 Method for fabricating non-volatile storage with individually controllable shield plates between storage elements Nov. 22, 2011
8043914 Methods of fabricating flash memory devices comprising forming a silicide on exposed upper and side surfaces of a control gate Oct. 25, 2011
8039345 Methods of forming semiconductor devices Oct. 18, 2011
8039337 Nonvolatile memory device with multiple blocking layers and method of fabricating the same Oct. 18, 2011
8030150 Method of fabricating non-volatile memory integrated circuit device and non-volatile memory integrated circuit device fabricated using the same Oct. 4, 2011











 
 
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