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Class Information
Number: 257/E21.663
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) > Ferroelectric nonvolatile memory structures (epo)
Description: This subclass is indented under subclass E21.662. This subclass is substantially the same in scope as ECLA classification H01L21/8246F.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.664 With ferroelectric capacitor (epo) 530


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8614135 Methods of manufacturing phase change memory devices Dec. 24, 2013
8542519 Semiconductor memory device Sep. 24, 2013
8535953 Process for selectively patterning a magnetic film structure Sep. 17, 2013
8518791 Method for fabricating a damascene self-aligned ferroelectric random access memory (F-RAM) with simultaneous formation of sidewall ferroelectric capacitors Aug. 27, 2013
8518792 Method for fabricating a damascene self-aligned ferroelectric random access memory (F-RAM) having a ferroelectric capacitor aligned with a three dimensional transistor structure Aug. 27, 2013
8455266 Multi-stack ferroelectric polymer memory Jun. 4, 2013
8426301 Three-dimensional nonvolatile memory devices having sub-divided active bars and methods of manufacturing such devices Apr. 23, 2013
8368132 Ferroelectric memory and manufacturing method thereof Feb. 5, 2013
8361811 Electronic component with reactive barrier and hermetic passivation layer Jan. 29, 2013
8344434 Semiconductor device having ferroelectric capacitor Jan. 1, 2013
8278122 Method for forming MTJ cells Oct. 2, 2012
8258029 Semiconductor structure and process for reducing the second bit effect of a memory device Sep. 4, 2012
8222075 Nonvolatile semiconductor memory device using a variable resistance film and method of manufacturing the same Jul. 17, 2012
8206995 Method for manufacturing a resistive switching memory device and devices obtained thereof Jun. 26, 2012
8178405 Resistor random access memory cell device May. 15, 2012
8153485 Method for fabricating memory Apr. 10, 2012
8129767 Ferroelectric polymer memory module Mar. 6, 2012
8129766 Semiconductor memory device comprising shifted contact plugs Mar. 6, 2012
8129200 Nonvolatile ferroelectric memory device and method for manufacturing the same Mar. 6, 2012
8105850 Process for selectively patterning a magnetic film structure Jan. 31, 2012
8101982 Memory device which comprises a multi-layer capacitor Jan. 24, 2012
8093631 Non-volatile memory device and method for fabricating the same Jan. 10, 2012
8080432 High performance MTJ element for STT-RAM and method for making the same Dec. 20, 2011
8072016 EPI substrate with low doped EPI layer and high doped Si substrate layer for media growth on EPI and low contact resistance to back-side substrate Dec. 6, 2011
8043924 Methods of forming phase-change memory units, and methods of manufacturing phase-change memory devices using the same Oct. 25, 2011
8022454 Ferroelectric thin films Sep. 20, 2011
8013389 Three-dimensional nonvolatile memory devices having sub-divided active bars and methods of manufacturing such devices Sep. 6, 2011
7989790 Resistance random access memory Aug. 2, 2011
7982252 Dual-gate non-volatile ferroelectric memory Jul. 19, 2011
7977667 Memory cell that includes a carbon nano-tube reversible resistance-switching element and methods of forming the same Jul. 12, 2011
7964498 Phase-change memory device capable of improving contact resistance and reset current and method of manufacturing the same Jun. 21, 2011
7960770 Nonvolatile memory element array with storing layer formed by resistance variable layers Jun. 14, 2011
7932547 Nonvolatile ferroelectric memory device using silicon substrate, method for manufacturing the same, and refresh method thereof Apr. 26, 2011
7923264 Ferroelectric passive memory cell, device and method of manufacture thereof Apr. 12, 2011
7910967 Ferroelectric capacitor having three-dimensional structure, nonvolatile memory device having the same and method of fabricating the same Mar. 22, 2011
7898012 Capacitor and semiconductor device having a ferroelectric material Mar. 1, 2011
7897415 Ferroelectric recording medium and method of manufacturing the same Mar. 1, 2011
7893472 Ferroelectric memory device, ferroelectric memory manufacturing method, and semiconductor manufacturing method Feb. 22, 2011
7893473 Semiconductor memory device and method of fabricating the same Feb. 22, 2011
7888139 Fabricating method of nonvolatile semiconductor storage apparatus Feb. 15, 2011
7875543 Strain-silicon CMOS using etch-stop layer and method of manufacture Jan. 25, 2011
7867786 Ferroelectric layer with domains stabilized by strain Jan. 11, 2011
7867788 Spin-dependent tunnelling cell and method of formation thereof Jan. 11, 2011
7829352 Fabrication of nano-object array Nov. 9, 2010
7825445 Magnetoresistive memory elements with separate read and write current paths Nov. 2, 2010
7820499 Method for manufacturing a nonvolatile memory device Oct. 26, 2010
7821809 Nonvolatile memory device and method including resistor and transistor Oct. 26, 2010
7807478 Nonvolatile memory device and fabrication method thereof Oct. 5, 2010
7808024 Ferroelectric polymer memory module Oct. 5, 2010
7808026 Dry etching method and production method of magnetic memory device Oct. 5, 2010

1 2 3










 
 
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