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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
8680619 Method of fabricating hybrid impact-ionization semiconductor device Mar. 25, 2014
8674414 Three-dimensional nonvolatile memory devices including interposed floating gates Mar. 18, 2014
8664712 Flash memory cell on SeOI having a second control gate buried under the insulating layer Mar. 4, 2014
8664062 Method of manufacturing flash memory cell Mar. 4, 2014
8664059 Non-volatile memory device formed by dual floating gate deposit Mar. 4, 2014
8652902 Floating gate semiconductor memory device and method for producing such a device Feb. 18, 2014
8642442 Memory device having three-dimensional gate structure Feb. 4, 2014
RE44730 Method of manufacturing a MOSFET structure Jan. 28, 2014
8624315 Field effect transistor having an asymmetric gate electrode Jan. 7, 2014
8592290 Cut-very-last dual-EPI flow Nov. 26, 2013
8592275 Semiconductor device and production method thereof Nov. 26, 2013
8587036 Non-volatile memory and fabricating method thereof Nov. 19, 2013
8580662 Manufacture method of a split gate nonvolatile memory cell Nov. 12, 2013
8574986 Method for fabricating nonvolatile memory device Nov. 5, 2013
8569828 Nonvolatile semiconductor storage device and method of manufacture thereof Oct. 29, 2013
8558301 Semiconductor device, and method for manufacturing semiconductor device Oct. 15, 2013
8557656 Cross-hair cell based floating body device Oct. 15, 2013
8557650 Patterning a gate stack of a non-volatile memory (NVM) using a dummy gate stack Oct. 15, 2013
8541277 Non-volatile memory device and method for fabricating the same Sep. 24, 2013
8541273 Dielectric stack Sep. 24, 2013
8536639 I-shape floating gate for flash memory device and fabricating the same Sep. 17, 2013
8530305 Nanodot charge storage structures and methods Sep. 10, 2013
8530297 Process for fabricating non-volatile storage Sep. 10, 2013
8524590 Memory device and method for manufacturing memory devices Sep. 3, 2013
8497172 Method of manufacturing a read-only memory device with contacts formed therein Jul. 30, 2013
8481387 Method of forming an insulation structure and method of manufacturing a semiconductor device using the same Jul. 9, 2013
8455939 Stacked metal fin cell Jun. 4, 2013
8450789 Memory array with an air gap between memory cells and the formation thereof May. 28, 2013
8450176 Methods of manufacturing rewriteable three-dimensional semiconductor memory devices May. 28, 2013
8450174 Non-volatile storage having a connected source and well May. 28, 2013
8445351 Floating-gate nonvolatile semiconductor memory device and method of making May. 21, 2013
8445347 3D vertical NAND and method of making thereof by front and back side processing May. 21, 2013
8440528 Method for manufacturing a vertical nonvolatile semiconductor memory device including forming floating gates within the recesses created on the interlayer insulating films May. 14, 2013
8435856 Floating gate flash cell device and method for partially etching silicon gate to form the same May. 7, 2013
8431983 Non-volatile memory device and method of fabricating the same Apr. 30, 2013
8426272 Non-volatile memory devices including shared bit lines and methods of fabricating the same Apr. 23, 2013
8426270 Memory device with a textured lowered electrode Apr. 23, 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
RE44156 Method for forming single-level electrically erasable and programmable read only memory operated in environment with high/low-voltage Apr. 16, 2013
8410543 Semiconductor storage device and manufacturing method thereof Apr. 2, 2013
8409945 Method of fabricating a charge trapping non-volatile memory cell Apr. 2, 2013
8404542 Semiconductor device having transistor with vertical gate electrode and method of fabricating the same Mar. 26, 2013
8395202 Nanoscale floating gate Mar. 12, 2013
8389356 Flash cell with floating gate transistors formed using spacer technology Mar. 5, 2013
8384142 Non-planar thin fin transistor Feb. 26, 2013
8383476 EEPROM cell Feb. 26, 2013
8383475 EEPROM cell Feb. 26, 2013
8372712 Memory device and method of manufacturing the same Feb. 12, 2013
8372707 Methods of forming non-volatile memory Feb. 12, 2013
8357966 Semiconductor device and method for manufacturing semiconductor device Jan. 22, 2013











 
 
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