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Class Information
Number: 257/E21.683
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) > With conductive layer as control gate (epo) > With source and drain on same level and without cell select transistor (epo) > Simultaneous fabrication of periphery and memory cells (epo)
Description: This subclass is indented under subclass E21.682. This subclass is substantially the same in scope as ECLA classification H01L21/8247M2P.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.684 Including one type of peripheral fet (epo) 62
257/E21.689 Including different types of peripheral fets (epo) 387


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8691622 Memory cells and methods of forming memory cells Apr. 8, 2014
8574987 Integrating formation of a replacement gate transistor and a non-volatile memory cell using an interlayer dielectric Nov. 5, 2013
8309425 Method of manufacturing semiconductor device Nov. 13, 2012
8247862 Method of enhancing charge storage in an E.sup.2PROM cell Aug. 21, 2012
8178408 Methods of manufacturing charge trap-type non-volatile memory devices May. 15, 2012
8097913 Electrically erasable and programmable read only memory device comprising common source region and method of manufacturing same Jan. 17, 2012
8076199 Method and device employing polysilicon scaling Dec. 13, 2011
8044451 Method of manufacturing semiconductor device having notched gate MOSFET Oct. 25, 2011
8034681 Method of forming flash memory device having inter-gate plug Oct. 11, 2011
7977218 Thin oxide dummy tiling as charge protection Jul. 12, 2011
7972929 Method for manufacturing semicondcutor device Jul. 5, 2011
7968405 Nonvolatile memory devices and methods of manufacturing the same Jun. 28, 2011
7955920 Field effect transistor with self-aligned source and heavy body regions and method of manufacturing same Jun. 7, 2011
7927950 Method of fabricating trap type nonvolatile memory device Apr. 19, 2011
7919369 Method of fabricating a flash memory device Apr. 5, 2011
7919772 Semiconductor device and manufacturing method thereof Apr. 5, 2011
7911005 Dram having deeper source drain region than that of an logic region Mar. 22, 2011
7884005 Method of manufacturing a semiconductor device Feb. 8, 2011
7879658 Semiconductor device and method for manufacturing the same Feb. 1, 2011
7855421 Embedded phase-change memory and method of fabricating the same Dec. 21, 2010
7750384 Flash memory device having intergated plug Jul. 6, 2010
7745827 Memory device Jun. 29, 2010
7687847 Semiconductor device and fabricating method thereof Mar. 30, 2010
7638430 Method of forming contact plug of semiconductor device Dec. 29, 2009
7585731 Semiconductor integrated circuit device and its manufacturing method Sep. 8, 2009
7582550 Semiconductor memory device and manufacturing method thereof Sep. 1, 2009
7573095 Memory cells with improved program/erase windows Aug. 11, 2009
7560388 Self-aligned pitch reduction Jul. 14, 2009
7550363 Method of fabricating a semiconductor device having first and second trenches using non-concurrently formed hard mask patterns Jun. 23, 2009
7547602 Semiconductor integrated circuit device and its manufacturing method Jun. 16, 2009
7427552 Method for fabricating isolation structures for flash memory semiconductor devices Sep. 23, 2008
7390749 Self-aligned pitch reduction Jun. 24, 2008
7250322 Method of making microsensor Jul. 31, 2007
7202522 Erasable and programmable read only memory (EPROM) cell of an EPROM device and method of manufacturing a semiconductor device having the EPROM cell Apr. 10, 2007
7087489 Method of fabricating trap type nonvolatile memory device Aug. 8, 2006
7026241 Superconductor device and method of manufacturing the same Apr. 11, 2006
7012008 Dual spacer process for non-volatile memory devices Mar. 14, 2006
6999350 Data line disturbance free memory block divided flash memory and microcomputer having flash memory therein Feb. 14, 2006
6995425 Semiconductor memory device having memory cell section and peripheral circuit section and method of manufacturing the same Feb. 7, 2006
6943453 Superconductor device and method of manufacturing the same Sep. 13, 2005
6927449 Nonvolatile semiconductor memory device having element isolating region of trench type Aug. 9, 2005
6921960 Capacitor element with an opening portion formed in a peripheral circuit Jul. 26, 2005
6916709 Non-volatile semiconductor memory device and manufacturing method for the same Jul. 12, 2005
6916702 Gate process and gate structure for an embedded memory device Jul. 12, 2005
6853028 Non-volatile memory device having dummy pattern Feb. 8, 2005
6849502 Semiconductor device and method of manufacturing the same Feb. 1, 2005
6835978 Nonvolatile semiconductor memory device having element isolating region of trench type Dec. 28, 2004
6815292 Flash memory having improved core field isolation in select gate regions Nov. 9, 2004
6804152 Method for manufacturing a printed board on which a semiconductor device having two modes is mounted Oct. 12, 2004
6794248 Method of fabricating semiconductor memory device and semiconductor memory device driver Sep. 21, 2004

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