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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
6927128 Method for manufacturing low voltage flash memory Aug. 9, 2005
6927133 Semiconductor memory capable of being driven at low voltage and its manufacture method Aug. 9, 2005
6927150 Method of manufacturing a semiconductor device Aug. 9, 2005
6927151 Method of manufacturing semiconductor device Aug. 9, 2005
6924186 Method of forming a memory device and semiconductor device Aug. 2, 2005
6924197 Method of fabricating an integrated circuit with a dielectric layer exposed to a hydrogen-bearing nitrogen source Aug. 2, 2005
6924241 Method of making a silicon nitride film that is transmissive to ultraviolet light Aug. 2, 2005
6924527 Split gate flash memory cell structure and method of manufacturing the same Aug. 2, 2005
6921690 Method of fabricating enhanced EPROM structures with accentuated hot electron generation regions Jul. 26, 2005
6921937 Integrated circuit with a dielectric layer exposed to a hydrogen-bearing nitrogen source Jul. 26, 2005
6916709 Non-volatile semiconductor memory device and manufacturing method for the same Jul. 12, 2005
6917070 Single-poly EPROM and method for forming the same Jul. 12, 2005
6913975 Non-volatile floating gate memory cell with floating gates formed in cavities, and array thereof, and method of formation Jul. 5, 2005
6914310 Semiconductor isolator system Jul. 5, 2005
6911690 Flash memory cell, flash memory cell array and manufacturing method thereof Jun. 28, 2005
6908818 Contactless channel write/erase flash memory cell and its fabrication method Jun. 21, 2005
6909138 P-channel dynamic flash memory cells with ultrathin tunnel oxides Jun. 21, 2005
6897112 Method for fabricating an integrated semiconductor configuration with the aid of thermal oxidation, related semiconductor configuration, and related memory unit May. 24, 2005
6897113 Single poly EEPROM with improved coupling ratio May. 24, 2005
6893920 Method for forming a protective buffer layer for high temperature oxide processing May. 17, 2005
6893981 Method of manufacturing a semiconductor device by RTA process in nitrogen atmosphere May. 17, 2005
6894339 Flash memory with trench select gate and fabrication process May. 17, 2005
6887758 Non-volatile memory device and method for forming May. 3, 2005
6888749 P-channel dynamic flash memory cells with ultrathin tunnel oxides May. 3, 2005
6885058 Semiconductor device and method of manufacturing such a semiconductor device Apr. 26, 2005
6881624 P-channel dynamic flash memory cells with ultrathin tunnel oxides Apr. 19, 2005
6881636 Methods of forming deuterated silicon nitride-containing materials Apr. 19, 2005
6881994 Monolithic three dimensional array of charge storage devices containing a planarized surface Apr. 19, 2005
6882571 Low voltage non-volatile memory cell Apr. 19, 2005
6882573 DMOS device with a programmable threshold voltage Apr. 19, 2005
6878589 Method and system for improving short channel effect on a floating gate device Apr. 12, 2005
6878591 Self aligned method of forming non-volatile memory cells with flat word line Apr. 12, 2005
6878988 Non-volatile memory with induced bit lines Apr. 12, 2005
6873003 Nonvolatile memory cell Mar. 29, 2005
6873004 Virtual ground single transistor memory cell, memory array incorporating same, and method of operation thereof Mar. 29, 2005
6873005 Programmable memory devices supported by semiconductor substrates Mar. 29, 2005
6869848 Method of manufacturing flash memory device Mar. 22, 2005
6867097 Method of making a memory cell with polished insulator layer Mar. 15, 2005
6867119 Nitrogen oxidation to reduce encroachment Mar. 15, 2005
6867128 Method for making an electronic component with self-aligned drain and gate, in damascene architecture Mar. 15, 2005
6867999 Memory device including a transistor having functions of RAM and ROM Mar. 15, 2005
6868015 Semiconductor memory array of floating gate memory cells with control gate spacer portions Mar. 15, 2005
6864530 High density flash memory architecture with columnar substrate coding Mar. 8, 2005
6861306 Method of forming a split-gate memory cell with a tip in the middle of the floating gate Mar. 1, 2005
6858498 Method for manufacturing memory Feb. 22, 2005
6855979 Multi-bit non-volatile memory device and method therefor Feb. 15, 2005
6855980 Semiconductor memory array of floating gate memory cells with low resistance source regions and high source coupling Feb. 15, 2005
6849490 Semiconductor device having a memory cell region and a peripheral circuit region and method of manufacturing thereof Feb. 1, 2005
6849506 Non-volatile memory device and fabrication method Feb. 1, 2005

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