Patents Examined by Jesse Fenty
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Patent number: 7242094Abstract: A semiconductor device having a capacitor formed in a multilayer wiring structure, the semiconductor device comprising a multilayer wiring structure including a plurality of wiring layers formed on a substrate, a capacitor arranged in a predetermined wiring layer in the multilayer wiring structure and having a lower electrode, a dielectric film, and an upper electrode, a first via formed in the predetermined wiring layer and connected to a top surface of the upper electrode of the capacitor, and a second via formed in an overlying wiring layer stacked on the predetermined wiring layer, the second via being formed on the first via.Type: GrantFiled: July 25, 2003Date of Patent: July 10, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Matsunaga, Yuichi Nakashima, Koji Miyamoto
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Patent number: 7233027Abstract: The invention relates to an arrangement comprising at least two different electronic semiconductor circuits (HS) in which each of the semiconductor circuits (HS) is a component made of semiconductor material and which has an electrically active surface and electronic contacts, and corresponding contacts of the semiconductor circuits are connected to one another in an electrically conductive manner. In order to simplify production, the semiconductor circuits (HS) are produced in a common support (12) made of semiconductor material and are connected to one another in an electrically conductive manner. Electrically conductive contacts (18) that are connected to the semiconductor circuits (HS) are produced on the surface of the support (12) by metallizing the support. Said support (12) has an expansion (13), which is made of the same material, forming a unit with the same, and which is provided for accommodating additional switching elements or components.Type: GrantFiled: April 17, 2002Date of Patent: June 19, 2007Assignee: Merge Optics GmbHInventors: Dag Neumeuer, Martin Brahms
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Patent number: 7227172Abstract: In a Group-III-element nitride semiconductor device including a Group-III-element nitride crystal layer stacked on a Group-III-element nitride crystal substrate, the substrate is produced by allowing nitrogen of nitrogen-containing gas and a Group III element to react with each other to crystallize in a melt (a flux) containing at least one of alkali metal and alkaline-earth metal, and a thin film layer is formed on the substrate and the thin film has a lower diffusion coefficient than that of the substrate with respect to impurities contained in the substrate. The present invention provides a semiconductor device in which alkali metal is prevented from diffusing.Type: GrantFiled: October 19, 2004Date of Patent: June 5, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasuo Kitaoka, Hisashi Minemoto, Isao Kidoguchi, Kazuyoshi Tsukamoto
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Patent number: 7049676Abstract: The semiconductor device includes a multilevel interconnection formed on a semiconductor substrate. The multilevel interconnection includes a plurality of wiring layers each of which is insulated by an insulating layer. A metal member is formed as a shielding film in a same plane as a wiring layer. As a result, the shielding layer can be formed without increasing the number of process steps.Type: GrantFiled: January 8, 2004Date of Patent: May 23, 2006Assignee: Oki Electric Industry Co., Ltd.Inventors: Shinji Tanabe, Tuguto Maruko
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Patent number: 6984841Abstract: The nitride semiconductor light emitting device includes a nitride semiconductor underlayer (102) grown on a surface of a nitride semiconductor substrate or a surface of a nitride semiconductor substrate layer laminated over a base substrate of other than a nitride semiconductor, and a light emitting device structure having a light emitting layer (106) including a quantum well layer or a quantum well layer and a barrier layer in contact with the quantum well layer between an n type layer (103–105) and a p type layer (107–110) over the nitride semiconductor underlayer. It includes a depression (D) not flattened on a surface of the light emitting device structure even after growth of the light emitting device structure.Type: GrantFiled: January 30, 2002Date of Patent: January 10, 2006Assignee: Sharp Kabushiki KaishaInventors: Yuhzoh Tsuda, Daisuke Hanaoka, Takayuki Yuasa, Shigetoshi Ito, Mototaka Taneya
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Patent number: 6972452Abstract: In a semiconductor device including a first conductive layer, the first conductive layer is treated with a nitrogen/hydrogen plasma before an additional layer is deposited thereover. The treatment stuffs the surface with nitrogen, thereby preventing oxygen from being adsorbed onto the surface of the first conductive layer. In one embodiment, a second conductive layer is deposited onto the first conductive layer, and the plasma treatment lessens if not eliminates an oxide formed between the two layers as a result of subsequent thermal treatments. In another embodiment, a dielectric layer is deposited onto the first conductive layer, and the plasma treatment lessens if not eliminates the ability of the first conductive layer to incorporate oxygen from the dielectric.Type: GrantFiled: March 19, 2004Date of Patent: December 6, 2005Assignee: Micron Technology, Inc.Inventor: Vishnu K. Agarwal
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Patent number: 6958523Abstract: An integrated circuit programmable structure (60) is formed for use a trim resistor and/or a programmable fuse. The programmable structure comprises placing heating elements (70) in close proximity to the programmable structure (60) to heat the programmable structure (60) during programming.Type: GrantFiled: September 7, 2001Date of Patent: October 25, 2005Assignee: Texas Instruments IncorporatedInventors: Jeffrey A. Babcock, Angelo Pinto, Gregory E. Howard, Philipp Steinmann, Scott Balster
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Patent number: 6897476Abstract: According to one exemplary embodiment, a test structure for determining electromigration and interlayer dielectric failure comprises a first metal line situated in a metal layer of the test structure. The test structure further comprises a second metal line situated adjacent and substantially parallel to the first metal line, where the second metal line is separated from the first metal line by a first distance, and where the first distance is substantially equal to minimum design rule separation distance. The test structure further comprises an interlayer dielectric layer situated between the first metal line and the second metal line. According to this exemplary embodiment, electromigration failure is determined when a first resistance of the first metal line or a second resistance of the second metal line is greater than a predetermined resistance, and interlayer dielectric failure is determined when a first current is detected between the first and second metal lines.Type: GrantFiled: August 7, 2003Date of Patent: May 24, 2005Assignee: Advanced Micro Devices, Inc.Inventors: Hyeon-Seag Kim, Seung-Hyun Rhee, Christine S Hau-Riege, Amit P Marathe
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Patent number: 6700155Abstract: A device and method uses charge trapping to configure and adjust a threshold voltage (Vt) for a field effect transistor (FET). The charge trapping mechanism can be controlled by bias voltages applied to the FET, so that rapid/dynamic changes can be made to Vt without the use of conventional program/erase cycles. The threshold voltage can thus be set as a function of applied operating voltages.Type: GrantFiled: September 23, 2002Date of Patent: March 2, 2004Assignee: Progressent Technologies, Inc.Inventors: Tsu-Jae King, David K. Y. Liu
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Patent number: 6693321Abstract: A method of making and a semiconductor device formed on a semiconductor substrate having an active region. The semiconductor device includes a gate dielectric layer disposed on the semiconductor substrate. A floating gate is formed on the gate dielectric layer and defines a channel interposed between a source and a drain formed within the active region of the semiconductor substrate. A control gate is formed above the floating gate. Further, the semiconductor device includes an intergate dielectric layer interposed between the floating gate and the control gate. The intergate dielectric layer including a first, a second and a third layers. The first layer formed on the floating gate. The second layer formed on the first layer. The third layer formed on the second layer. Each of the first, second and third layers has a dielectric constant greater than SiO2 and an electrical equivalent thickness of less than about 50 angstroms (Å) of SiO2.Type: GrantFiled: May 15, 2002Date of Patent: February 17, 2004Assignee: Advanced Micro Devices, Inc.Inventors: Wei Zheng, Arvind Halliyal, Mark W. Randolph
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Patent number: 6661038Abstract: A semiconductor device of the present invention includes a systematic structure layer of first conductivity type and having a systematically arranged structure. The systematic structure layer is formed on a collector contact layer of first conductivity type, which is connected to collector electrodes. A compensation layer of first conductivity type is formed on the systematic structure layer. A collector layer of first conductivity type is formed on the compensation layer. A base layer is formed on the collector layer and connected to base electrodes. An emitter layer is formed on the base electrode and connected to an emitter electrode. The semiconductor device reduces collector resistance and thereby improves reliability.Type: GrantFiled: February 28, 2002Date of Patent: December 9, 2003Assignee: NEC Compound Semiconductor Devices, Ltd.Inventors: Kouji Azuma, Yousuke Miyoshi, Fumio Harima, Masahiro Tanomura, Hidenori Shimawaki
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Patent number: 6359293Abstract: An integrated optoelectronic circuit chip for optical data communication systems includes a silicon substrate, at least one MOS field effect transistor (MOSFET) formed on a portion of the silicon substrate, and an avalanche photodetector operatively responsive to an incident optical signal and formed on another portion of the substrate. The avalanche photodetector includes a light absorbing region extending from a top surface of the silicon substrate to a depth h and doped to a first conductivity type. The light absorbing region is ionizable by the incident optical signal to form freed charge carriers in the light absorbing region. A light responsive region is formed in the light absorbing region and extends from the top surface of the silicon substrate to a depth of less than h. The light responsive region is doped to a second conductivity type of opposite polarity to the first conductivity type.Type: GrantFiled: August 17, 1999Date of Patent: March 19, 2002Assignee: Agere Systems Guardian Corp.Inventor: Ted Kirk Woodward