Coherer Patents (Class 365/165)
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Patent number: 8872150Abstract: Some embodiments include memory constructions having a plurality of bands between top and bottom electrically conductive materials. The bands include chalcogenide bands alternating with non-chalcogenide bands. In some embodiments, there may be least two of the chalcogenide bands and at least one of the non-chalcogenide bands. In some embodiments, the memory cells may be between a pair of electrodes; with one of the electrodes being configured as a lance, angled plate, container or beam. In some embodiments, the memory cells may be electrically coupled with select devices, such as, for example, diodes, field effect transistors or bipolar junction transistors.Type: GrantFiled: April 1, 2014Date of Patent: October 28, 2014Assignee: Micron Technology, Inc.Inventors: Andrea Redaelli, Agostino Pirovano
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Patent number: 8835990Abstract: A 3-D memory is provided. Each word line layer has word lines and gaps alternately arranged along a first direction. Gaps include first group and second group of gaps alternately arranged. A first bit line layer is on word line layers and has first bit lines along a second direction. A first conductive pillar array through word line layers connects the first bit line layer and includes first conductive pillars in first group of gaps. A first memory element is between a first conductive pillar and an adjacent word line. A second bit line layer is below word line layers and has second bit lines along the second direction. A second conductive pillar array through word line layers connects the second bit line layer and includes second conductive pillars in second group of gaps. A second memory element is between a second conductive pillar and an adjacent word line.Type: GrantFiled: August 12, 2011Date of Patent: September 16, 2014Assignee: Winbond Electronics Corp.Inventor: Wen-Yueh Jang
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Patent number: 8502184Abstract: A nonvolatile memory device and a method of fabricating the same are provided. The nonvolatile memory device includes a conductive pillar that extends from a substrate in a first direction, a variable resistor that surrounds the conductive pillar, a switching material layer that surrounds the variable resistor, a first conductive layer that extends in a second direction, and a first electrode that extends in a third direction and contacts the first conductive layer and the switching material layer. Not one of the first, second, and third directions is parallel to another one of the first, second, and third directions.Type: GrantFiled: May 6, 2011Date of Patent: August 6, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hyeong-Geun An, Sung-Lae Cho, Ik-Soo Kim, Dong-Hyun Im, Eun-Hee Cho
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Patent number: 8486745Abstract: Phase change devices, and particularly multi-terminal phase change devices, include first and second active terminals bridged together by a phase-change material whose conductivity can be modified in accordance with a control signal applied to a control electrode. This structure allows an application in which an electrical connection can be created between the two active terminals, with the control of the connection being effected using a separate terminal or terminals. Accordingly, the resistance of the heater element can be increased independently from the resistance of the path between the two active terminals. This allows the use of smaller heater elements thus requiring less current to create the same amount of Joule heating per unit area. The resistance of the heating element does not impact the total resistance of the phase change device.Type: GrantFiled: June 7, 2007Date of Patent: July 16, 2013Assignee: Agate Logic, Inc.Inventors: Louis Charles Kordus, II, Antonietta Oliva, Narbeh Derharcobian, Vei-Han Chan
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Patent number: 8440923Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.Type: GrantFiled: March 11, 2009Date of Patent: May 14, 2013Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Thomas J. Nugent, Jr., Lowell L. Wood, Jr.
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Patent number: 8288748Abstract: According to one embodiment, an information recording and reproducing device includes a first layer, a second layer, and a recording layer between the first and second layers, which is capable of a transition between a first state of a low resistance and a second state of a high resistance by flowing a current between the first and second layers. A peripheral portion of the recording layer has a composition different from that of a center portion of the recording layer. The center portion includes two kinds of cation elements. And the center portion is different from the peripheral portion in a ratio of the two kinds of cation elements.Type: GrantFiled: September 24, 2010Date of Patent: October 16, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Takayuki Tsukamoto, Chikayoshi Kamata, Takeshi Yamaguchi, Takahiro Hirai, Shinya Aoki, Kohichi Kubo
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Patent number: 8178903Abstract: A semiconductor device in accordance with an exemplary aspect of the present invention includes: an even number of transistor pairs; connection nodes connecting the n-type transistors and the p-type transistors of the transistor pairs; and inter-gate wiring lines connected to the connection nodes, each inter-gate wiring line connecting a gate of the p-type transistor of one of the transistor pairs disposed in the subsequent stage of one of the transistor pairs for which each connection node is provided, wherein the n-type transistor of a first transistor pair is disposed in a p-well region different from both a p-well region in which the n-type transistor of a second transistor pair disposed in two stages preceding of the first transistor pair is disposed and a p-well region in which the n-type transistor of a third transistor pair disposed in two stages subsequent of the first transistor pair is disposed.Type: GrantFiled: October 6, 2009Date of Patent: May 15, 2012Assignee: Renesas Electronics CorporationInventor: Hideyuki Nakamura
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Patent number: 7859385Abstract: Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical contacts is determined by the selected sheet resistance of the nanofabric, the area of nanofabric, and the spaced relation of the first and second electrical contacts. The bulk resistance is tunable.Type: GrantFiled: April 29, 2008Date of Patent: December 28, 2010Assignee: Nantero, Inc.Inventors: Claude L. Bertin, Thomas Rueckes, Brent M. Segal, Jonathan W. Ward
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Patent number: 6826712Abstract: According to an aspect of the present invention, a redundant file memory for recording first replacement information having an address of a defective cell to be replaced with a redundant cell is configured by a memory cell having the same configuration as an ordinary memory cell, and when accessing the ordinary memory cell, the redundant file memory can be accessed at the same time. Furthermore, second replacement information indicating whether or not the ordinary cell in correspondence with the stored address is a defective one is recorded in the redundant file memory. When accessing the ordinary memory cell, the first and second replacement information recorded in the redundant file memory are read out at the same time, and the defective cell is replaced with the redundant cell according to the replacement information.Type: GrantFiled: February 15, 2001Date of Patent: November 30, 2004Assignee: Fujitsu LimitedInventor: Chikai Ono
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Patent number: 6599796Abstract: A cross point memory array is fabricated on a substrate with a plurality of memory cells, each memory cell including a diode and an anti-fuse in series. First and second conducting materials are disposed in separate strips on the substrate to form a plurality of first and second orthogonal electrodes with cross points. A plurality of semiconductor layers are disposed between the first and second electrodes to form a plurality of diodes between the cross points of the first and second electrodes. A passivation layer is disposed between the first electrodes and the diodes to form a plurality of anti-fuses adjacent to the diodes at the cross points of first and second electrodes. Portions of the diode layers are removed between the electrode cross points to form the plurality of memory cells with rows of trenches between adjacent memory cells to provide a barrier against crosstalk between adjacent memory cells. The trenches extend substantially to the depth of the n-doped layer in each diode.Type: GrantFiled: June 29, 2001Date of Patent: July 29, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ping Mei, Carl P. Taussig, Patricia A. Beck
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Patent number: 6549450Abstract: The present invention provides an SOI SRAM architecture system which holds all the bitlines at a lower voltage level, for example, ground, or a fraction of Vdd, during array idle or sleep mode. Preferably, the bitlines are held at a voltage level approximately equal to Vdd minus Vth, where Vth represents the threshold voltage of the transfer devices of the SRAM cells. This prevents the body regions of the transfer devices of each cell of the array from fully charging up, and thus the system avoids the parasitic bipolar leakage current effects attributed to devices fabricated on a partially-depleted SOI substrate. Also, during idle or sleep mode, if all the bitlines are kept at about the Vdd minus Vth voltage level, power consumption by the SRAM architecture system is decreased. This is because the leakage path via one of the transfer gates of all the SRAM cells is greatly minimized.Type: GrantFiled: November 8, 2000Date of Patent: April 15, 2003Assignee: IBM CorporationInventors: Louis L. Hsu, Rajiv V. Joshi, Fariborz Assaderaghi, Mary J. Saccamango
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Patent number: 5943258Abstract: An integrated circuit (10). The integrated circuit comprises a first SOI transistor (AT3) having a body and for performing first function. The integrated circuit further comprises a second SOI transistor (DT3) having a body and for performing a second function different than the first function. Lastly, the integrated circuit comprises a conductor (BT1) connecting the body of the first SOI transistor to the body of the second SOI transistor such that the bodies of the first SOI transistor and the second SOI transistor float together.Type: GrantFiled: December 24, 1997Date of Patent: August 24, 1999Assignee: Texas Instruments IncorporatedInventors: Theodore W. Houston, Patrick W. Bosshart