Silicide Patents (Class 438/682)
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Patent number: 12040373Abstract: A semiconductor device includes a substrate including designated source or drain (source/drain) regions. An active source/drain is in the designated source/drain regions, and a source/drain cap liner is on an upper surface of the active source/drain. The semiconductor device further includes trench silicide regions completely filed with a silicide material.Type: GrantFiled: December 15, 2021Date of Patent: July 16, 2024Assignee: International Business Machines CorporationInventors: Nicolas Loubet, Christian Lavoie, Adra Carr, Nicholas Anthony Lanzillo
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Patent number: 12027372Abstract: A method of forming a semiconductor device includes forming a source/drain region on a substrate, depositing a metal-rich metal silicide layer on the source/drain region, depositing a silicon-rich metal silicide layer on the metal-rich metal silicide layer, and forming a contact plug on the silicon-rich metal silicide layer. This disclosure also describes a semiconductor device including a fin structure on a substrate, a source/drain region on the fin structure, a metal-rich metal silicide layer on the source/drain region, a silicon-rich metal silicide layer on the metal-rich metal silicide layer, and a contact plug on the silicon-rich metal silicide layer.Type: GrantFiled: January 16, 2023Date of Patent: July 2, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Sung-Li Wang, Yasutoshi Okuno, Shih-Chuan Chiu
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Patent number: 11688811Abstract: A field-effect transistor including an active zone comprises a source, a channel, a drain and a control gate, which is positioned level with the channel, allowing a current to flow through the channel between the source and drain along an x-axis, the channel comprising: a first edge of separation with the source; and a second edge of separation with the drain; the channel being compressively or tensilely strained, wherein the channel includes a localized perforation or a set of localized perforations along at least the first and/or second edge of the channel so as to also create at least one shear strain in the channel. A process for fabricating the transistor is provided.Type: GrantFiled: December 16, 2020Date of Patent: June 27, 2023Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Emmanuel Augendre, Maxime Argoud, Sylvain Maitrejean, Pierre Morin, Raluca Tiron
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Patent number: 11631739Abstract: A method for producing a transistor includes producing on a substrate provided with a semiconductor surface layer in which an active area can be formed, a gate block arranged on the active area. Lateral protection areas are formed against lateral faces of the gate block. Source and drain regions based on a metal material-semiconductor material compound are formed on either side of the gate and in the continuation of a portion located facing the gate block. Insulating spacers are formed on either side of the gate resting on the regions based on a metal material-semiconductor material compound.Type: GrantFiled: November 13, 2019Date of Patent: April 18, 2023Assignee: Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Fabrice Nemouchi, Antonio Lacerda Santos Neto, Francois Lefloch
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Patent number: 11322387Abstract: The present disclosure relates to semiconductor structures and, more particularly, to bulk wafer switch isolation structures and methods of manufacture. The structure includes: a bulk substrate material; an active region on the bulk substrate material; an inactive region adjacent to the active region; and an amorphous material covering the bulk substrate material in the inactive region, which is adjacent to the active region.Type: GrantFiled: October 13, 2020Date of Patent: May 3, 2022Assignee: GLOBALFOUNDRIES U.S. INC.Inventors: Uzma Rana, Anthony K. Stamper, Steven M. Shank, Brett T. Cucci
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Patent number: 11282744Abstract: Device and method of forming the device are disclosed. A semiconductor device includes a back-end-of-line dielectric (BEOL) with a plurality of IMD levels over a substrate processed with front-end-of-line components. The BEOL includes an upper IMD level and upper metal lines, with a buffer layer over the upper metal lines. The buffer layer improves adhesion of the upper IMD layer which covers the upper metal lines. Improving the adhesion of the upper IMD layer improves the reliability of the device.Type: GrantFiled: September 30, 2019Date of Patent: March 22, 2022Assignee: Systems On Silicon Manufacturing Co. Pte. Ltd.Inventors: Pankaj Kumar Uttwani, Shankaran Chelliah, Yee Ming Chan
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Patent number: 11251034Abstract: There is provided a film forming method comprising an organic substance removal step of removing an organic substance adhering to an oxide film generated on a surface of a base by supplying a hydrogen-containing gas and an oxygen-containing gas to the base; an oxide film removal step of removing the oxide film formed on the surface of the base after the organic substance removal step; and a film forming step of forming a predetermined film on the surface of the base after the oxide film removal step.Type: GrantFiled: February 21, 2019Date of Patent: February 15, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Hiroyuki Hayashi, Rui Kanemura, Satoshi Takagi, Mitsuhiro Okada
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Patent number: 11239336Abstract: Embodiments of the disclosure provide an integrated circuit (IC) structure with a niobium-based silicide layer. An IC structure according to the disclosure includes a transistor on a substrate, the transistor including a gate structure above the substrate and a source/drain (S/D) region on the substrate adjacent the gate structure. A niobium-based silicide layer is on at least an upper surface the S/D region of the transistor, and extends across substantially an entire width of the S/D region. An S/D contact to the S/D region is in contact with the niobium-based silicide layer.Type: GrantFiled: February 12, 2020Date of Patent: February 1, 2022Assignee: GlobalFoundries U.S. Inc.Inventors: Wei Hong, Yanping Shen, Domingo A. Ferrer, Hong Yu
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Patent number: 10903202Abstract: A semiconductor device includes a first semiconductor region of a first conductivity type, a plurality of second semiconductor regions of a second conductivity type, each comprising a first part, on the first semiconductor region, wherein the second semiconductor regions are spaced apart in a first direction, a third semiconductor region of the first conductivity type on each of the second semiconductor regions, an insulation portion between two of the second semiconductor regions, the insulation portion having one side in contact with one of the first parts and the other side in contact with one of the third semiconductor regions, a first electrode within the insulation portion, a gate electrode spaced apart from the first electrode and within the insulation portion, and a second electrode on the third semiconductor region and electrically connected to the first electrode and the third semiconductor region.Type: GrantFiled: November 13, 2018Date of Patent: January 26, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hiroaki Katou, Masatoshi Arai, Chikako Yoshioka
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Patent number: 10825771Abstract: A semiconductor device includes a semiconductor substrate, an insulating film provided on the semiconductor substrate, a first element disposed at least in a lower layer portion of the insulating film, a second element disposed at least in the lower layer portion of the insulating film, and a hydrogen barrier member provided on the semiconductor substrate. The hydrogen barrier member is made from a material transmitting hydrogen less easily than does a material of the insulating film. The hydrogen barrier member and the semiconductor substrate surround the second element. The hydrogen barrier member does not surround the first element.Type: GrantFiled: September 7, 2018Date of Patent: November 3, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Nobuyuki Toda, Takeshi Yamamoto, Shinji Kawahara, Kazuaki Yamaura, Takashi Ishikawa
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Patent number: 10819553Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4m to-be-sent higher order modulation symbols on different carriers of two antennas. The to-be-sent higher order modulation symbols include some or all to-be-sent information bits. Therefore, the same signal can be simultaneously sent on different carriers of multiple antennas, and frequency diversity and space diversity are implemented, so that transceiving performance of data transmission is improved.Type: GrantFiled: August 20, 2019Date of Patent: October 27, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Tao Wu
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Patent number: 9691917Abstract: A photovoltaic device (e.g., solar cell) includes: a front substrate (e.g., glass substrate); a semiconductor absorber film; a back contact including a first conductive layer of or including copper (Cu) and a second conductive layer of or including molybdenum (Mo); and a rear substrate (e.g., glass substrate). A selenium blocking layer is provided between at least the Cu inclusive layer and the Mo inclusive layer.Type: GrantFiled: September 17, 2015Date of Patent: June 27, 2017Assignee: Guardian Industries Corp.Inventor: Alexey Krasnov
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Patent number: 9543167Abstract: A method includes conducting a laser-based anneal treatment on a metal layer positioned above and in direct contact with a first diamond shaped epitaxial layer surrounding a first fin and a second diamond shaped epitaxial layer surrounding a second fin, the metal layer extends from the first diamond shaped epitaxial layer to the second diamond shaped epitaxial layer, the laser-based anneal treatment forms a silicide layer, a portion of the silicide layer between the first and the second diamond shaped epitaxial layers is substantially thicker than a portion of the silicide layer in contact with the first and the second diamond shaped epitaxial layers, and the silicide layer takes on a crystal orientation of the first and the second epitaxial layers.Type: GrantFiled: July 15, 2014Date of Patent: January 10, 2017Assignee: GLOBALFOUNDRIES INC.Inventors: Brent A. Anderson, Nicolas Breil, Christian Lavoie
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Patent number: 9142430Abstract: Packaged devices and methods for making and using the same are described. The packaged devices contain one or more circuit components, such as a die, that is attached to a leadframe having a first lead, a second lead, and a third lead (although, higher lead counts may be employed in some implementations). A portion of the circuit component and the leadframe are encapsulated in a molded housing so that the first lead is exposed from a first end of the housing while the second and third leads are exposed from a second end of the housing. In some configurations, the packaged device does not contain a fourth lead that is both electrically connected to the first lead and that is exposed from the second end of the molded housing. In other configurations, an area extending from the second lead to the third lead in the molded housing comprises an insulating material having a substantially uniform conductivity.Type: GrantFiled: December 17, 2014Date of Patent: September 22, 2015Assignee: Fairchild Semiconductor CorporationInventor: Richard A. Dunipace
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Patent number: 9093425Abstract: Metal semiconductor alloy contacts are provided on each of a source region and a drain region which are present in a semiconductor substrate. A transition metal is then deposited on each of the metal semiconductor alloy contacts, and during the deposition of the transition metal, the deposited transition metal reacts preferably, but not necessarily always, in-situ with a portion of each the metal semiconductor alloy contacts forming a transition metal-metal semiconductor alloy liner atop each metal semiconductor alloy contact. Each transition metal-metal semiconductor alloy liner that is provided has outer edges that are vertically coincident with outer edges of each metal semiconductor alloy contact. The transition metal-metal semiconductor alloy liner is more etch resistant as compared to the underlying metal semiconductor alloy. As such, the transition metal-metal semiconductor alloy liner can serve as an effective etch stop layer during any subsequently performed etch process.Type: GrantFiled: February 11, 2014Date of Patent: July 28, 2015Assignee: International Business Machines CorporationInventors: Nicolas Breil, Christian Lavoie, Ahmet S. Ozcan, Kathryn T. Schonenberg, Jian Yu
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Patent number: 9070664Abstract: A device includes a substrate and a metal-oxide-semiconductor (MOS) device. The MOS device includes a gate dielectric over the substrate, a gate electrode over the gate dielectric, a source/drain region adjacent the gate dielectric, and a source/drain silicide over and contacting the source/drain region. The source/drain silicide comprises silicon, nickel, and a secondary metal. A ratio of a volume percentage of the secondary metal to a volume percentage of the silicon in the source/drain silicide is between about 0.005 and about 0.1. The secondary metal has a density between about 5,000 kg/m3 and about 15,000 kg/m3.Type: GrantFiled: August 16, 2013Date of Patent: June 30, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Shih-Chieh Chang, Ying-Lang Wang, Kei-Wei Chen
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Publication number: 20150137794Abstract: The present invention generally relates to nanoscale wires for use in sensors and other applications. In various embodiments, a probe comprising a nanotube (or other nanoscale wire) is provided that can be directly inserted into a cell to determine a property of the cell, e.g., an electrical property. In some cases, only the tip of the nanoscale wire is inserted into the cell; this tip may be very small relative to the cell, allowing for very precise study. In some aspects, the tip of the probe is held by a holding member positioned on a substrate, e.g., at an angle, which makes it easier for the probe to be inserted into the cell. The nanoscale wire may also be connected to electrodes and/or form part of a transistor, such that a property of the nanoscale wire, and thus of the cell, may be determined. Such probes may also be useful for studying other samples besides cells.Type: ApplicationFiled: May 2, 2013Publication date: May 21, 2015Inventors: Charles M. Lieber, Ruixuan Gao, Steffen Strehle, Xiaojie Duan, Bozhi Tian, Itzhaq Cohen-Karni, Ping Xie, Quan Qing
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Publication number: 20150111381Abstract: Provided are method of fabricating semiconductor device and computing system for implementing the method. The method of fabricating a semiconductor device includes forming a target layer, forming a first mask on the target layer to expose a first region, subsequently forming a second mask on the target layer to expose a second region separated from the first region in a first direction, subsequently forming a third mask in the exposed first region to divide the first region into a first sub region and a second sub region separated from each other in a second direction intersecting the first direction, and etching the target layer using the first through third masks such that the first and second sub regions and the second region are defined in the target layer.Type: ApplicationFiled: October 8, 2014Publication date: April 23, 2015Inventors: Yoon-Hae KIM, Jong-Shik YOON, Hwa-Sung RHEE, Byung-Sung KIM
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Patent number: 9006104Abstract: In one example, the method includes forming a metal layer on a silicon-containing structure, after forming the metal layer, performing an ion implantation process to implant silicon atoms into at least one of the metal layer and the silicon-containing structure and performing a first millisecond anneal process so as to form a first metal silicide region in the silicon-containing structure.Type: GrantFiled: June 5, 2013Date of Patent: April 14, 2015Assignee: GLOBALFOUNDRIES Inc.Inventor: Vidmantas Sargunas
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Patent number: 9000494Abstract: A structure includes a silicon layer disposed on a buried oxide layer that is disposed on a substrate; at least one transistor device formed on or in the silicon layer, the at least one transistor having metallization; a released region of the silicon layer disposed over a cavity in the buried oxide layer; a back end of line (BEOL) dielectric film stack overlying the silicon layer and the at least one transistor device; a nitride layer overlying the BEOL dielectric film stack; a hard mask formed as a layer of hafnium oxide overlying the nitride layer; and an opening made through the layer of hafnium oxide, the layer of nitride and the BEOL dielectric film stack to expose the released region of the silicon layer disposed over the cavity in the buried oxide layer. The hard mask protects the underlying material during a MEMS/NEMS HF vapor release procedure.Type: GrantFiled: September 21, 2012Date of Patent: April 7, 2015Assignee: International Business Machines CorporationInventors: Michael A. Guillorn, Fei Liu, Ying Zhang
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Publication number: 20150084183Abstract: Methods and apparatus are provided for an integrated circuit with a transistor and a resistor. The method includes depositing a first dielectric layer over the transistor and the resistor, followed by an amorphous silicon layer. The amorphous silicon layer is implanted over the resistor to produce an etch mask, and the amorphous silicon layer and first dielectric layer are removed over the transistor. A contact location on the transistor is then silicided.Type: ApplicationFiled: September 23, 2013Publication date: March 26, 2015Applicant: GLOBALFOUNDRIES, Inc.Inventors: Joachim Patzer, Hans-Peter Moll
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Patent number: 8987071Abstract: A thin-film transistor comprises a semiconductor panel, a dielectric layer, a semiconductor film layer, a conduct layer, a source and a drain. The semiconductor panel comprises a base, an intra-dielectric layer, at least one metal wire layer and at least one via layer. The dielectric layer is stacked on the semiconductor panel. The semiconductor film layer is stacked on the dielectric layer. The conduct layer is formed on the semiconductor film layer. The source is formed on the via of the vias that is adjacent to and connects to the gate via. The drain is formed on another via of the vias that is adjacent to and connects to the gate via. A fabricating method for a thin-film transistor with metal-gates and nano-wires is also disclosed.Type: GrantFiled: December 16, 2013Date of Patent: March 24, 2015Assignee: National Applied Research LaboratoriesInventors: Min-Cheng Chen, Chang-Hsien Lin, Chia-Yi Lin, Tung-Yen Lai, Chia-Hua Ho
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Patent number: 8987127Abstract: The present invention discloses a method for manufacturing a semiconductor device, comprising: forming a gate stacked structure on a silicic substrate; depositing a Nickel-based metal layer on the substrate and the gate stacked structure; performing a first annealing so that the silicon in the substrate reacts with the Nickel-based metal layer to form a Ni-rich phase of metal silicide; performing an ion implantation by implanting doping ions into the Ni-rich phase of metal silicide; performing a second annealing so that the Ni-rich phase of metal to silicide is transformed into a Nickel-based metal silicide source/drain, and meanwhile, forming a segregation region of the doping ions at an interface between the Nickel-based metal silicide source/drain and the substrate.Type: GrantFiled: March 23, 2012Date of Patent: March 24, 2015Assignee: Institute of Microelectronics, Chinese Academy of SciencesInventors: Jun Luo, Chao Zhao, Huicai Zhong, Junfeng Li, Dapeng Chen
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Publication number: 20150079767Abstract: A semiconductor device includes semiconductor bodies formed substantially perpendicular to a semiconductor substrate, buried bit lines formed in the semiconductor bodies and including a metal silicide; and barrier layers formed under and over the buried bit lines and containing germanium.Type: ApplicationFiled: November 19, 2014Publication date: March 19, 2015Inventors: Ju-Hyun MYUNG, Eui-Seong HWANG, Eun-Shil PARK, Tae-Yoon KIM
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Patent number: 8981565Abstract: In one aspect, a method of fabricating a metal silicide includes the following steps. A semiconductor material selected from the group consisting of silicon and silicon germanium is provided. A metal(s) is deposited on the semiconductor material. A first anneal is performed at a temperature and for a duration sufficient to react the metal(s) with the semiconductor material to form an amorphous layer including an alloy formed from the metal(s) and the semiconductor material, wherein the temperature at which the first anneal is performed is below a temperature at which a crystalline phase of the alloy is formed. An etch is used to selectively remove unreacted portions of the metal(s). A second anneal is performed at a temperature and for a duration sufficient to crystallize the alloy thus forming the metal silicide. A device contact and a method of fabricating a FET device are also provided.Type: GrantFiled: March 23, 2012Date of Patent: March 17, 2015Assignee: International Business Machines CorporationInventors: Christian Lavoie, Dong-Ick Lee, Ahmet Serkan Ozcan, Zhen Zhang
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Patent number: 8969202Abstract: A method of manufacturing a metal silicide is disclosed below. A substrate having a first region and a second region is provided. A silicon layer is formed on the substrate. A planarization process is performed to make the silicon layer having a planar surface. A part of the silicon layer is removed to form a plurality of first gates on the first region and to form a plurality of second gates on the second region. The height of the first gates is greater than the height of the second gates, and top surfaces of the first gates and the second gates have the same height level. A dielectric layer covering the first gates and the second gates is formed and exposes the top surfaces of the first gates and the second gates. A metal silicide is formed on the top surfaces of the first gates and the second gates.Type: GrantFiled: February 7, 2014Date of Patent: March 3, 2015Assignee: Macronix International Co., Ltd.Inventors: Yen-Hao Shih, Ying-Tso Chen, Shih-Chang Tsai, Chun-Fu Chen
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Patent number: 8962431Abstract: A method of forming metal silicide-comprising material includes forming a substrate which includes a first stack having second metal over first metal over silicon and a second stack having second metal over silicon. The first and second metals are of different compositions. The substrate is subjected to conditions which react the second metal with the silicon in the second stack to form metal silicide-comprising material from the second stack. The first metal between the second metal and the silicon in the first stack precludes formation of a silicide comprising the second metal and silicon from the first stack. After forming the metal silicide-comprising material, the first metal, the second metal and the metal silicide-comprising material are subjected to an etching chemistry that etches at least some remaining of the first and second metals from the substrate selectively relative to the metal silicide-comprising material.Type: GrantFiled: January 16, 2014Date of Patent: February 24, 2015Assignee: Micron Technology, Inc.Inventors: David H. Wells, John Mark Meldrim, Rita J. Klein
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Patent number: 8962439Abstract: A method of programming a memory cell includes causing a current to flow through a first silicide-containing portion and a second silicide-containing portion of the memory cell; and causing, by the current, an electron-migration effect to form an extended silicide-containing portion within the gap such that the memory cell is converted from a first state into a second state. The memory cell includes a silicon-containing line continuously extending between a first region and a second region; the first silicide-containing portion over the silicon-containing line and adjacent to the first region; and the second silicide-containing portion over the silicon-containing line and adjacent to the second region. The first silicide-containing portion and the second silicide-containing portion are separated by a gap if the memory cell is at the first state. The extended silicide-containing portion extends from the second silicide-containing portion towards the first silicide-containing portion.Type: GrantFiled: June 11, 2014Date of Patent: February 24, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jyun-Ying Lin, Chun-Yao Ko, Ting-Chen Hsu
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Patent number: 8952541Abstract: A contact may be fabricated by a method including depositing a dielectric layer on a substrate having a transistor, etching a first opening in the dielectric layer that extends to a source region, forming an insulator on the source region, forming a contact metal on the insulator, the insulator separating the contact metal from the source region, and filling substantially all of the first opening, wherein the contact metal remains separated from the source region after the first opening is filled.Type: GrantFiled: January 17, 2012Date of Patent: February 10, 2015Assignee: Intel CorporationInventors: Niloy Mukherjee, Gilbert Dewey, Matthew V. Metz, Jack Kavalieros, Robert S. Chau
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Patent number: 8946071Abstract: The present invention discloses a method for manufacturing a semiconductor device, comprising: forming a gate stacked structure on a substrate; forming a source/drain region and a gate sidewall spacer at both sides of the gate stacked structure; depositing a Nickel-based metal layer at least in the source/drain region; performing a first annealing so that the silicon in the source/drain region reacts with the Nickel-based metal layer to form a Ni-rich phase of metal silicide; performing an ion implantation by implanting doping ions into the Ni-rich phase of metal silicide; performing a second annealing so that the Ni-rich phase metal silicide is transformed into a Nickel-based metal silicide, and meanwhile, forming a segregation region of the doping ions at an interface between the Nickel-based metal silicide and the source/drain region.Type: GrantFiled: March 23, 2012Date of Patent: February 3, 2015Assignee: Institute of Microelectronics, Chinese Academy of SciencesInventors: Jun Luo, Chao Zhao, Huicai Zhong, Junfeng Li, Dapeng Chen
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Publication number: 20150024593Abstract: A semiconductor device production method includes forming a transition metal film, irradiating a surface of the transition metal film with a mono-silane gas to form a silicon-containing transition metal film, and oxidizing the silicon-containing transition metal film by an oxygen plasma treatment, thereby forming a transition metal silicate film.Type: ApplicationFiled: August 1, 2014Publication date: January 22, 2015Inventors: Ippei Kume, Naoya Inoue, Yoshihiro Hayashi
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Patent number: 8927366Abstract: A method of manufacturing a non-volatile memory device, wherein the method includes: alternately stacking interlayer sacrificial layers and interlayer insulating layers on a substrate; forming a plurality of first openings that pass through the interlayer sacrificial layers and the interlayer insulating layers to expose a first portion of the substrate; forming a semiconductor region on a side wall and a lower surface of each of the first openings; forming an embedded insulating layer in each of the first openings; forming a first conductive layer on the embedded insulating layer inside each of the first openings; forming a second opening exposing a second portion of the substrate and forming an impurity region on the second portion; forming a metal layer to cover the first conductive layer and the impurity region; and forming the metal layer into a metal silicide layer.Type: GrantFiled: September 11, 2012Date of Patent: January 6, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-hae Lee, Ki-hyun Hwang, Jin-gyun Kim
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Patent number: 8927422Abstract: A method for forming a raised silicide contact including depositing a layer of silicon at a bottom of a contract trench using a gas cluster implant technique which accelerates clusters of silicon atoms causing them to penetrate a surface oxide on a top surface of the silicide, a width of the silicide and the contact trench are substantially equal; heating the silicide including the silicon layer to a temperature from about 300° C. to about 950° C. in an inert atmosphere causing silicon from the layer of silicon to react with the remaining silicide partially formed in the silicon containing substrate; and forming a raised silicide from the layer of silicon, wherein the thickness of the raised silicide is greater than the thickness of the silicide and the raised silicide protrudes above a top surface of the silicon containing substrate.Type: GrantFiled: June 18, 2012Date of Patent: January 6, 2015Assignee: International Business Machines CorporationInventors: Emre Alptekin, Nathaniel Berliner, Christian Lavoie, Kam-Leung Lee, Ahmet Serkan Ozcan
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Patent number: 8912096Abstract: Methods for precleaning native oxides or other contaminants from a surface of a substrate prior to forming a metal silicide layer on the substrate. In one embodiment, a method for removing native oxides from a substrate includes transferring a substrate having an oxide layer disposed thereon into a processing chamber, performing a pretreatment process on the substrate by supplying a pretreatment gas mixture into the processing chamber, performing an oxide removal process on the substrate by supplying a cleaning gas mixture into the processing chamber, wherein the cleaning gas mixture includes at least an ammonium gas and a nitrogen trifluoride, and performing a post treatment process on the cleaned substrate by supplying a post treatment gas mixture into the processing chamber.Type: GrantFiled: April 28, 2011Date of Patent: December 16, 2014Assignee: Applied Materials, Inc.Inventors: Bo Zheng, Arvind Sundarrajan, Manish Hamkar
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Patent number: 8912059Abstract: Various embodiments disclosed include semiconductor structures and methods of forming such structures. In one embodiment, a method includes: providing a semiconductor structure including: a substrate; at least one gate structure overlying the substrate; and an interlayer dielectric overlying the substrate and the at least one gate structure; removing the ILD overlying the substrate to expose the substrate; forming a silicide layer over the substrate; forming a conductor over the silicide layer and the at least one gate structure; forming an opening in the conductor to expose a portion of a gate region of the at least one gate structure; and forming a dielectric in the opening in the conductor.Type: GrantFiled: September 20, 2012Date of Patent: December 16, 2014Assignee: International Business Machines CorporationInventors: Brent A. Anderson, David V. Horak, Edward J. Nowak
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Patent number: 8901740Abstract: A contact may be fabricated by a method including depositing a dielectric layer on a substrate having a transistor, etching a first opening in the dielectric layer that extends to a source region, forming an insulator on the source region, forming a contact metal on the insulator, the insulator separating the contact metal from the source region, and filling substantially all of the first opening, wherein the contact metal remains separated from the source region after the first opening is filled.Type: GrantFiled: January 17, 2012Date of Patent: December 2, 2014Assignee: Intel CorporationInventors: Niloy Mukherjee, Gilbert Dewey, Matthew V. Metz, Jack Kavalieros, Robert S. Chau
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Patent number: 8895426Abstract: A gate-last method for forming a metal gate transistor is provided. The method includes forming an opening within a dielectric material over a substrate. A gate dielectric structure is formed within the opening and over the substrate. A work function metallic layer is formed within the opening and over the gate dielectric structure. A silicide structure is formed over the work function metallic layer.Type: GrantFiled: May 20, 2010Date of Patent: November 25, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Jeff J. Xu
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Publication number: 20140342556Abstract: A method of silicide formation in a semiconductor fabrication process is disclosed. An active area (RX) mask is used to form an active silicon area, and is then reused to form a trench transfer (TT) area. A trench block (TB) mask is logically ANDed with the active area (RX) mask to form a trench silicide (TS) region.Type: ApplicationFiled: May 20, 2013Publication date: November 20, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Mohamed Salama, Tuhin Guha Neogi, Scott Beasor
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Patent number: 8889552Abstract: A semiconductor device is manufactured using dual metal silicide layers. The semiconductor device includes a substrate having first and second regions, a first metal gate electrode on the substrate in the first region, a second metal gate electrode on the substrate in the second region, a first epitaxial layer on and in the substrate at both sides of the first metal gate electrode, a second epitaxial layer on and in the substrate at both sides of the second metal gate electrode, a first metal silicide layer on the first epitaxial layer, a second metal silicide layer on the second epitaxial layer, an interlayer dielectric layer on the first and second metal silicide layers, contact plugs passing through the interlayer dielectric layer and electrically connected to the first and second metal silicide layers.Type: GrantFiled: November 19, 2013Date of Patent: November 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sangline Park, Boun Yoon, Jeongnam Han, Kee-Sang Kwon, Byung-Kwon Cho, Wongsang Choi
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Patent number: 8890106Abstract: A hybrid circuit comprises a nitride-based transistor portion and a memristor portion. The transistor includes a source and a drain and a gate for controlling conductance of a channel region between the source and the drain. The memristor includes a first electrode and a second electrode separated by an active switching region. The source or drain of the transistor forms one of the electrodes of the memristor.Type: GrantFiled: December 18, 2012Date of Patent: November 18, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jianhua Yang, Gilberto Medeiros Ribeiro, Byung-Joon Choi, Stanley Williams
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Patent number: 8859431Abstract: The invention discloses a method for cleaning residues from a semiconductor substrate during a nickel platinum silicidation process. Post silicidation residues of nickel and platinum may not be removed adequately just by an aqua regia solution (comprising a mixture of nitric acid and hydrochloric acid). Therefore, embodiments of the invention provide a multi-step residue cleaning, comprising exposing the substrate to an aqua regia solution, followed by an exposure to a chlorine gas or a solution comprising dissolved chlorine gas, which may further react with remaining platinum residues, rendering it more soluble in aqueous solution and thereby dissolving it from the surface of the substrate.Type: GrantFiled: June 6, 2013Date of Patent: October 14, 2014Assignee: Intermolecular, Inc.Inventors: Anh Duong, John Foster, Olov Karlsson, James Mavrinac, Usha Raghuram
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Patent number: 8853079Abstract: A method of forming a device includes forming a silicon-containing line continuously extending between a first node and a second node. A first silicide-containing portion and a second silicide-containing portion are formed over the silicon-containing line. The first silicide-containing portion is separated from the second silicide-containing portion by a predetermined distance, and the predetermined distance is substantially equal to or less than a length of the silicon-containing line.Type: GrantFiled: January 10, 2014Date of Patent: October 7, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jyun-Ying Lin, Chun-Yao Ko, Ting-Chen Hsu
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Patent number: 8841190Abstract: This invention relates to a MOS device for making the source/drain region closer to the channel region and a method of manufacturing the same, comprising: providing an initial structure, which includes a substrate, an active region, and a gate stack; performing ion implantation in the active region on both sides of the gate stack, such that part of the substrate material undergoes pre-amorphization to form an amorphous material layer; forming a first spacer; with the first spacer as a mask, performing dry etching, thereby forming a recess, with the amorphous material layer below the first spacer kept; performing wet etching using an etchant solution that is isotropic to the amorphous material layer and whose etch rate to the amorphous material layer is greater than or substantially equal to the etch rate to the {100} and {110} surfaces of the substrate material but is far greater than the etch rate to the {111} surface of the substrate material, thus removing the amorphous material layer below the first spaceType: GrantFiled: April 10, 2012Date of Patent: September 23, 2014Assignee: The Institute of Microelectronics Chinese Academy of ScienceInventors: Changliang Qin, Huaxiang Yin
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Patent number: 8835316Abstract: The disclosure provides a transistor, a method for manufacturing the transistor, and a semiconductor chip comprising the transistor. The transistor comprises: an active area, a gate stack, a primary spacer, and source/drain regions, wherein the active area is on a semiconductor substrate; the gate stack, the primary spacer, and the source/drain regions are on the active area; the primary spacer surrounds the gate stack; the source/drain regions are embedded in the active area and self-aligned with opposite sides of the primary spacer. Wherein the transistor further comprises: a silicide spacer, wherein the silicide spacer is located at opposite sides of the primary spacer, and a dielectric material is filled between the two ends of the silicide spacer in the width direction of the gate stack, so as to isolate the source/drain regions from each other.Type: GrantFiled: August 9, 2011Date of Patent: September 16, 2014Assignee: Institute of Microelectronics, Chinese Academy of SciencesInventors: Haizhou Yin, Jun Luo, Huilong Zhu, Zhijiong Luo
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Patent number: 8835318Abstract: Ni and Pt residuals are eliminated by replacing an SPM cleaning process with application of HNO3 in an SWC tool. Embodiments include depositing a layer of Ni/Pt on a semiconductor substrate, annealing the deposited Ni/Pt layer, removing unreacted Ni from the annealed Ni/Pt layer by applying HNO3 to the annealed Ni/Pt layer in an SWC tool, annealing the Ni removed Ni/Pt layer, and removing unreacted Pt from the annealed Ni removed Ni/Pt layer. Embodiments include forming first and second gate electrodes on a substrate, spacers on opposite sides of each gate electrode, and Pt-containing NiSi on the substrate adjacent each spacer, etching back the spacers, forming a tensile strain layer over the first gate electrode, applying a first HNO3 in an SWC tool, forming a compressive strain layer over the second gate electrode, and applying a second HNO3 in an SWC tool.Type: GrantFiled: March 8, 2012Date of Patent: September 16, 2014Assignee: GlobalFoundries Inc.Inventors: Clemens Fitz, Jochen Poth, Kristin Schupke
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Patent number: 8828868Abstract: A method for forming a hard mask in semiconductor device fabrication comprises: forming first and second patterned material layers on a third material layer, the second patterned material layer only covering the top of predetermined regions of the first patterned material layer; changing a property of exposed top and side portions of the first patterned material layer using the second patterned material layer as a mask, forming property-changed roofs at the exposed top portions of the first patterned material layer and forming property-changed sidewalls with a predetermined width at the exposed side portions of the first patterned material layer; removing the second patterned material layer and portions of the first patterned material layer with exposed tops and an unchanged property located between the property-changed sidewalls, to form the hard mask.Type: GrantFiled: December 7, 2011Date of Patent: September 9, 2014Assignee: Semiconductor Manufacturing International (Beijing) CorporationInventor: Zhongshan Hong
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Publication number: 20140242796Abstract: To improve a semiconductor device having a nonvolatile memory. a first MISFET, a second MISFET, and a memory cell are formed, and a stopper film made of a silicon oxide film is formed thereover. Then, over the stopper film, a stress application film made of a silicon nitride film is formed, and the stress application film over the second MISFET and the memory cell is removed. Thereafter, heat treatment is performed to apply a stress to the first MISFET. Thus, a SMT is not applied to each of elements, but is applied selectively. This can reduce the degree of degradation of the second MISFET due to H (hydrogen) in the silicon nitride film forming the stress application film. This can also reduce the degree of degradation of the characteristics of the memory cell due to the H (hydrogen) in the silicon nitride film forming the stress application film.Type: ApplicationFiled: November 13, 2013Publication date: August 28, 2014Applicant: Renesas Electronics CorporationInventors: Koichi TOBA, Hiraku CHAKIHARA, Yoshiyuki KAWASHIMA, Kentaro SAITO, Takashi HASHIMOTO
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Patent number: 8815736Abstract: Disclosed herein are various methods of forming metal silicide regions on semiconductor devices by using different temperatures during the silicidation processes. In one example, the method includes forming a plurality of N-doped source/drain regions and a plurality of P-doped source/drain regions in a semiconducting substrate and performing a first heating process at a first temperature to initially form a first metal silicide region in each of the P-doped source/drain regions. The method further includes performing a second heating process at a second temperature to initially form a second metal silicide region in each of the N-doped source/drain regions, wherein the second temperature is less than the first temperature and performing a third heating process at a third temperature to complete the formation of the first and second metal silicide regions, wherein the third temperature is greater than the first temperature.Type: GrantFiled: August 25, 2011Date of Patent: August 26, 2014Assignee: GLOBALFOUNDRIES Inc.Inventors: Thilo Scheiper, Peter Javorka, Stefan Flachowsky, Clemens Fitz
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Patent number: 8809077Abstract: In a method of manufacturing of a semiconductor device according to an embodiment, an inspection transistor is subjected to silicidation and subsequently a characteristic of the inspection transistor is measured after the inspection transistor and a product transistor on a substrate are subjected to an annealing process. Thereafter, based on the measured characteristic, a characteristic adjustment annealing process to make a characteristic of the product transistor close to a desired characteristic is performed, and then the product transistor is subjected to silicidation.Type: GrantFiled: March 15, 2012Date of Patent: August 19, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Amane Oishi
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Patent number: 8803243Abstract: A complementary metal oxide semiconductor (CMOS) device including a substrate including a first active region and a second active region, wherein each of the first active region and second active region of the substrate are separated by from one another by an isolation region. A n-type semiconductor device is present on the first active region of the substrate, in which the n-type semiconductor device includes a first portion of a gate structure. A p-type semiconductor device is present on the second active region of the substrate, in which the p-type semiconductor device includes a second portion of the gate structure. A connecting gate portion provides electrical connectivity between the first portion of the gate structure and the second portion of the gate structure. Electrical contact to the connecting gate portion is over the isolation region, and is not over the first active region and/or the second active region.Type: GrantFiled: January 3, 2012Date of Patent: August 12, 2014Assignee: International Business Machines CorporationInventors: Yue Liang, Dureseti Chidambarrao, Brian J. Greene, William K. Henson, Unoh Kwon, Shreesh Narasimha, Xiaojun Yu