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Class Information
Number: 257/E21.208
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) > Manufacture of electrode on semiconductor body using process other than by epitaxial growth, diffusion of impurities, alloying of impurity materials, or radiation bombardment (epo) > Comprising layer having ferroelectric properties (epo)
Description: This subclass is indented under subclass E21.158. This subclass is substantially the same in scope as ECLA classification H01L21/28K.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8653510 Enhanced E-field sensing using negative capacitance FET subthreshold slope enhancement Feb. 18, 2014
8557645 Semiconductor device with a gate electrode having a shape formed based on a slope and gate lower opening and method of manufacturing the same Oct. 15, 2013
8558294 Semiconductor device and fabrication process thereof Oct. 15, 2013
8502291 Memory cells, memory cell constructions, and memory cell programming methods Aug. 6, 2013
8405134 Magnetic tunnel junction device Mar. 26, 2013
8372662 Nonvolatile ferroelectric perpendicular electrode cell, FeRAM having the cell and method for manufacturing the cell Feb. 12, 2013
8319263 Magnetic tunnel junction device Nov. 27, 2012
8304823 Integrated circuit including a ferroelectric memory cell and method of manufacturing the same Nov. 6, 2012
8263419 Semiconductor device and method for manufacturing the same Sep. 11, 2012
8257984 Ferroelectric capacitor and method of manufacturing the same Sep. 4, 2012
8247855 Enhanced local interconnects employing ferroelectric electrodes Aug. 21, 2012
8237264 Method of manufacturing semiconductor device and thermal annealing apparatus Aug. 7, 2012
8216857 Ferroelectric memory device and fabrication process thereof, fabrication process of a semiconductor device Jul. 10, 2012
8153447 Nonvolatile ferroelectric perpendicular electrode cell, FeRAM having the cell and method for manufacturing the cell Apr. 10, 2012
8133745 Method of magnetic tunneling layer processes for spin-transfer torque MRAM Mar. 13, 2012
8134194 Memory cells, memory cell constructions, and memory cell programming methods Mar. 13, 2012
8124526 Methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device including the same Feb. 28, 2012
8102022 Semiconductor device manufacturing method and semiconductor device Jan. 24, 2012
8080432 High performance MTJ element for STT-RAM and method for making the same Dec. 20, 2011
8026111 Dielectric enhancements to chip-to-chip capacitive proximity communication Sep. 27, 2011
8022454 Ferroelectric thin films Sep. 20, 2011
8008097 MgO tunnel barriers and method of formation Aug. 30, 2011
7985667 Method for patterning semiconductor device having magnetic tunneling junction structure Jul. 26, 2011
7973350 Strained-channel transistor device Jul. 5, 2011
7927890 Method of manufacturing a semiconductor device Apr. 19, 2011
7927891 Semiconductor device and method for manufacturing the same Apr. 19, 2011
7927946 Semiconductor device and manufacturing method of the same Apr. 19, 2011
7897414 Method of manufacturing semiconductor device and thermal annealing apparatus Mar. 1, 2011
7888138 Ferroelectric thin film device and method of manufacturing the same Feb. 15, 2011
7884403 Magnetic tunnel junction device and memory device including the same Feb. 8, 2011
7851785 Magnetic tunnel transistor with thin read gap for head applications Dec. 14, 2010
7829446 Method for dividing wafer, method for manufacturing silicon devices, and method for manufacturing liquid ejecting heads Nov. 9, 2010
7795659 DRAM device and method of manufacturing the same Sep. 14, 2010
7772014 Semiconductor device having reduced single bit fails and a method of manufacture thereof Aug. 10, 2010
7768050 Ferroelectric thin films Aug. 3, 2010
7732847 Semiconductor memory device including a semiconductor film made of a material having a spontaneous polarization and method for fabricating the same Jun. 8, 2010
7645618 Dry etch stop process for eliminating electrical shorting in MRAM device structures Jan. 12, 2010
7645619 Magnetic random access memory device and method of forming the same Jan. 12, 2010
7605436 Manufacture of semiconductor device having insulation film of high dielectric constant Oct. 20, 2009
7547621 LPCVD gate hard mask Jun. 16, 2009
7535745 Ferroelectric memory device and method of manufacturing the same May. 19, 2009
7517702 Method for making an electronic device including a poled superlattice having a net electrical dipole moment Apr. 14, 2009
7492001 High K stack for non-volatile memory Feb. 17, 2009
7482175 Method of manufacturing substrate having periodically poled regions Jan. 27, 2009
7479405 PRAMS having a plurality of active regions located vertically in sequence and methods of forming the same Jan. 20, 2009
7473599 Memory capable of storing information and the method of forming and operating the same Jan. 6, 2009
7449346 Method of manufacturing ferroelectric thin film for data storage and method of manufacturing ferroelectric recording medium using the same method Nov. 11, 2008
7445943 Magnetic tunnel junction memory and method with etch-stop layer Nov. 4, 2008
7413912 Microsensor with ferroelectric material and method for fabricating the same Aug. 19, 2008
7410812 Manufacture of semiconductor device having insulation film of high dielectric constant Aug. 12, 2008

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