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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
7425482 Non-volatile memory device and method for fabricating the same Sep. 16, 2008
7416935 Method of manufacturing nonvolatile semiconductor memory device having adjacent selection transistors connected together Aug. 26, 2008
7411243 Nonvolatile semiconductor device and method of fabricating the same Aug. 12, 2008
7410871 Split gate type flash memory device and method for manufacturing same Aug. 12, 2008
7396722 Memory device with reduced cell area Jul. 8, 2008
7391078 Non-volatile memory and manufacturing and operating method thereof Jun. 24, 2008
7387933 EEPROM device and method of fabricating the same Jun. 17, 2008
7374995 Nonvolatile semiconductor memory device May. 20, 2008
7372098 Low power flash memory devices May. 13, 2008
7365383 Method of forming an EPROM cell and structure therefor Apr. 29, 2008
7358558 Flash memory device Apr. 15, 2008
7358129 Nonvolatile semiconductor memory device and a method of the same Apr. 15, 2008
7351631 Flash memories and methods of fabricating the same Apr. 1, 2008
7342272 Flash memory with recessed floating gate Mar. 11, 2008
7341912 Split gate flash memory device having self-aligned control gate and method of manufacturing the same Mar. 11, 2008
7338859 Non-volatile memory cells having floating gate and method of forming the same Mar. 4, 2008
7329578 Method of forming floating-gate tip for split-gate flash memory process Feb. 12, 2008
7319058 Fabrication method of a non-volatile memory Jan. 15, 2008
7315057 Split gate non-volatile memory devices and methods of forming same Jan. 1, 2008
7314798 Method of fabricating a nonvolatile storage array with continuous control gate employing hot carrier injection programming Jan. 1, 2008
7314797 Semiconductor device and its manufacturing method Jan. 1, 2008
7312498 Nonvolatile semiconductor memory cell and method of manufacturing the same Dec. 25, 2007
7303956 Flash memory cell arrays having dual control gates per memory cell charge storage element Dec. 4, 2007
7301194 Shrinkable and highly coupled double poly EEPROM with inverter Nov. 27, 2007
7279385 Flash memory device and manufacturing method thereof Oct. 9, 2007
7271065 Horizontal memory devices with vertical gates Sep. 18, 2007
7268042 Nonvolatile semiconductor memory and making method thereof Sep. 11, 2007
7265015 Use of chlorine to fabricate trench dielectric in integrated circuits Sep. 4, 2007
7262096 NAND flash memory cell row and manufacturing method thereof Aug. 28, 2007
7259051 Method of forming SI tip by single etching process and its application for forming floating gate Aug. 21, 2007
7256443 Semiconductor memory and method of manufacturing the same Aug. 14, 2007
7256091 Method of manufacturing a semiconductor device with a self-aligned polysilicon electrode Aug. 14, 2007
7256085 Semiconductor memory device and manufacturing method thereof Aug. 14, 2007
7253054 One time programmable EPROM for advanced CMOS technology Aug. 7, 2007
7244651 Fabrication of an OTP-EPROM having reduced leakage current Jul. 17, 2007
7238982 Split gate type flash memory device and method for manufacturing same Jul. 3, 2007
7217621 Self-aligned split-gate NAND flash memory and fabrication process May. 15, 2007
7208796 Split gate flash memory Apr. 24, 2007
7198993 Method of fabricating a combined fully-depleted silicon-on-insulator (FD-SOI) and partially-depleted silicon-on-insulator (PD-SOI) devices Apr. 3, 2007
7160775 Method of discharging a semiconductor device Jan. 9, 2007
7151021 Bi-directional read/program non-volatile floating gate memory cell and array thereof, and method of formation Dec. 19, 2006
7125769 Method of fabricating flash memory device Oct. 24, 2006
7112491 Methods of forming field effect transistors including floating gate field effect transistors Sep. 26, 2006
7075139 Method of manufacturing semiconductor device Jul. 11, 2006
7064016 Semiconductor device and method of fabricating thereof Jun. 20, 2006
7064381 Non-volatile memory device having upper and lower trenches and method for fabricating the same Jun. 20, 2006
7060554 PECVD silicon-rich oxide layer for reduced UV charging Jun. 13, 2006
7060559 Method of manufacturing a nonvolatile semiconductor memory device Jun. 13, 2006
7056785 Non-volatile memory cell fabricated with slight modification to a conventional logic process and methods of operating same Jun. 6, 2006
7057230 Nonvolatile semiconductor memory device employing transistors having different gate withstand voltages for enhanced reading speed Jun. 6, 2006

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