Patents Issued in November 21, 2017
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Patent number: 9824880Abstract: A method of polishing a silicon wafer, including performing a mirror polishing process on the silicon wafer, the mirror polishing process including: performing rough polishing on the silicon wafer; subsequently removing metallic impurities attached on a surface of the silicon wafer by performing both an oxidation process with ozone gas or ozone water and an oxide-film removing process with hydrofluoric acid vapor or hydrofluoric acid solution on the surface of the silicon wafer; and then performing final polishing. The invention provides a method of polishing a silicon wafer and a method of producing an epitaxial wafer that can prevent the occurrence of PID in the silicon wafer due to a mirror-polishing process and the degradation of surface quality of the silicon wafer after the mirror-polishing process and the epitaxial wafer having an epitaxial layer stacked thereon in a subsequent process.Type: GrantFiled: March 13, 2014Date of Patent: November 21, 2017Assignee: SHIN-ETSU HANDOTAI CO., LTDInventor: Hideki Sato
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Patent number: 9824881Abstract: Methods and precursors for depositing silicon nitride films by atomic layer deposition (ALD) are provided. In some embodiments the silicon precursors comprise an iodine ligand. The silicon nitride films may have a relatively uniform etch rate for both vertical and the horizontal portions when deposited onto three-dimensional structures such as FinFETS or other types of multiple gate FETs. In some embodiments, various silicon nitride films of the present disclosure have an etch rate of less than half the thermal oxide removal rate with diluted HF (0.5%).Type: GrantFiled: March 14, 2013Date of Patent: November 21, 2017Assignee: ASM IP HOLDING B.V.Inventors: Antti J. Niskanen, Shang Chen, Viljami Pore
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Patent number: 9824882Abstract: A method for manufacturing a protective layer for protecting an intermediate structural layer against etching with hydrofluoric acid, the intermediate structural layer being made of a material that can be etched or damaged by hydrofluoric acid, the method comprising the steps of: forming a first layer of aluminum oxide, by atomic layer deposition, on the intermediate structural layer; performing a thermal crystallization process on the first layer of aluminum oxide to form a first intermediate protective layer; forming a second layer of aluminum oxide, by atomic layer deposition, above the first intermediate protective layer; and performing a thermal crystallization process on the second layer of aluminum oxide to form a second intermediate protective layer and thereby completing the formation of the protective layer. The method for forming the protective layer can be used, for example, during the manufacturing steps of an inertial sensor such as a gyroscope or an accelerometer.Type: GrantFiled: December 29, 2015Date of Patent: November 21, 2017Assignee: STMicroelectronics S.r.l.Inventors: Stefano Losa, Raffaella Pezzuto, Roberto Campedelli, Matteo Perletti, Luigi Esposito, Mikel Azpeitia Urquia
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Patent number: 9824883Abstract: A method of manufacturing a semiconductor device by processing a substrate by supplying a processing space with a gas dispersed in a buffer space disposed at an upstream side of the processing space is provided. The method includes (a) transferring the substrate into the processing space while exhausting a transfer space of the substrate by a first vacuum pump; (b) closing a first valve disposed at a downstream side of the first vacuum pump; (c) supplying the gas into the processing space via the buffer space; and (d) exhausting the buffer space through an exhaust pipe connected to a downstream side of the first valve.Type: GrantFiled: July 21, 2015Date of Patent: November 21, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Hiroshi Ashihara, Arito Ogawa
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Patent number: 9824884Abstract: A method of depositing silicon nitride films on semiconductor substrates processed in a micro-volume of a plasma enhanced atomic layer deposition (PEALD) reaction chamber wherein a single semiconductor substrate is supported on a ceramic surface of a pedestal and process gas is introduced through gas outlets in a ceramic surface of a showerhead into a reaction zone above the semiconductor substrate, includes (a) cleaning the ceramic surfaces of the pedestal and showerhead with a fluorine plasma, (b) depositing a halide-free atomic layer deposition (ALD) oxide undercoating on the ceramic surfaces, (c) depositing a precoating of ALD silicon nitride on the halide-free ALD oxide undercoating, and (d) processing a batch of semiconductor substrates by transferring each semiconductor substrate into the reaction chamber and depositing a film of ALD silicon nitride on the semiconductor substrate supported on the ceramic surface of the pedestal.Type: GrantFiled: October 6, 2016Date of Patent: November 21, 2017Assignee: LAM RESEARCH CORPORATIONInventors: James S. Sims, Jon Henri, Ramesh Chandrasekharan, Andrew John McKerrow, Seshasayee Varadarajan, Kathryn Merced Kelchner
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Patent number: 9824885Abstract: One aspect of the present invention is a double sided hybrid crystal structure including a trigonal Sapphire wafer containing a (0001) C-plane and having front and rear sides. The Sapphire wafer is substantially transparent to light in the visible and infrared spectra, and also provides insulation with respect to electromagnetic radio frequency noise. A layer of crystalline Si material having a cubic diamond structure aligned with the cubic <111> direction on the (0001) C-plane and strained as rhombohedron to thereby enable continuous integration of a selected (SiGe) device onto the rear side of the Sapphire wafer. The double sided hybrid crystal structure further includes an integrated III-Nitride crystalline layer on the front side of the Sapphire wafer that enables continuous integration of a selected III-Nitride device on the front side of the Sapphire wafer.Type: GrantFiled: September 13, 2016Date of Patent: November 21, 2017Assignee: The Unites States of America as represented by the Administrator of NASAInventors: Yeonjoon Park, Sang Hyouk Choi
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Patent number: 9824886Abstract: A method of forming a REO dielectric layer and a layer of a-Si between a III-N layer and a silicon substrate. The method includes depositing single crystal REO on the substrate. The single crystal REO has a lattice constant adjacent the substrate matching the lattice constant of the substrate and a lattice constant matching a selected III-N material adjacent an upper surface. A uniform layer of a-Si is formed on the REO. A second layer of REO is deposited on the layer of a-Si with the temperature required for epitaxial growth crystallizing the layer of a-Si and the crystallized silicon being transformed to amorphous silicon after transferring the lattice constant of the selected III-N material of the first layer of REO to the second layer of REO, and a single crystal layer of the selected III-N material deposited on the second layer of REO.Type: GrantFiled: October 27, 2014Date of Patent: November 21, 2017Assignee: TRANSLUCENT, INC.Inventors: Rytis Dargis, Andrew Clark, Erdem Arkun
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Patent number: 9824887Abstract: A nitride semiconductor device includes a substrate; a nitride semiconductor multilayer structure which is formed on the substrate, includes a first nitride semiconductor layer and a second nitride semiconductor layer having a different composition from that of the first nitride semiconductor layer, and generates two dimensional electron gas on a hetero interface between the first nitride semiconductor layer and the second nitride semiconductor layer; and an insulating film which covers at least a portion of a surface of the nitride semiconductor multilayer structure, has a concentration of Si—H bonds equal to or less than 6.0×1021 cm?3, and is formed of silicon nitride.Type: GrantFiled: August 27, 2015Date of Patent: November 21, 2017Assignee: Sharp Kabushiki KaishaInventors: Yoshimi Tanimoto, Koichiro Fujita, Yushi Inoue, Takao Kinoshita
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Patent number: 9824888Abstract: To provide a crystalline oxide semiconductor film. By collision of ions with a target including a crystalline In—Ga—Zn oxide, a flat-plate-like In—Ga—Zn oxide is separated. In the flat-plate-like In—Ga—Zn oxide, a first layer including a gallium atom, a zinc atom, and an oxygen atom, a second layer including a zinc atom and an oxygen atom, a third layer including an indium atom and an oxygen atom, and a fourth layer including a gallium atom, a zinc atom, and an oxygen atom are stacked in this order. After the flat-plate-like In—Ga—Zn oxide is deposited over a substrate while maintaining the crystallinity, the second layer is gasified and exhausted.Type: GrantFiled: May 15, 2014Date of Patent: November 21, 2017Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 9824889Abstract: Methods for depositing silicon include cycling dosing between 1 and 100 cycles of one or more first chlorosilane precursors on a III-V surface at a temperature between 300° C. and 500° C. to form a first layer. Methods may include desorbing chlorine from the first layer by treating the first layer with atomic hydrogen to form a second layer. Methods may include forming a silicon multilayer on the second layer by cycling dosing between 1 and 100 cycles of one or more second chlorosilane precursors and atomic hydrogen at a temperature between 300° C. and 500° C. A layered composition includes a first layer selected from the group consisting of InxGa1-xAs, InxGa1-xSb, InxGa1-xN, SiGe, and Ge, wherein X is between 0.1 and 0.99, and a second layer, wherein the second layer comprises Si—H and Si—OH.Type: GrantFiled: April 15, 2015Date of Patent: November 21, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Andrew C. Kummel, Mary Edmonds, Mei Chang, Jessica S. Kachian
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Patent number: 9824890Abstract: A reactor for growing or depositing semiconductor films or devices. The reactor may be designed for inline production of III-V materials grown by hydride vapor phase epitaxy (HVPE). The operating principles of the HVPE reactor can be used to provide a completely or partially inline reactor for many different materials. An exemplary design of the reactor is shown in the attached drawings. In some instances, all or many of the pieces of the reactor formed of quartz, such as welded quartz tubing, while other reactors are made from metal with appropriate corrosion resistant coatings such as quartz or other materials, e.g., corrosion resistant material, or stainless steel tubing or pipes may be used with a corrosion resistant material useful with HVPE-type reactants and gases. Using HVPE in the reactor allows use of lower-cost precursors at higher deposition rates such as in the range of 1 to 5 ?m/minute.Type: GrantFiled: July 16, 2015Date of Patent: November 21, 2017Assignees: Alliance for Sustainable Energy, LLC, Wisconsin Alumni Research FoundationInventors: David L. Young, Aaron Joseph Ptak, Thomas F. Kuech, Kevin Schulte, John D. Simon
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Patent number: 9824891Abstract: The invention disclosed a method of manufacturing the thin film, which belongs to the technological field of SOI wafer manufacture. By growing a layer of dielectric material (silicon oxide) on the provided high-resistivity silicon wafer, then to grow a layer of amorphous silicon on the dielectric material, to transfer a layer of silicon oxide to the amorphous silicon, to make the mono crystalline silicon exist on the oxidation layer, so that a SOI wafer with a layer of amorphous silicon is manufactured. The process above is completed in specific process conditions. The manufactured thin film, e.g. SOI wafer with amorphous silicon layer, is used main for RF apparatus.Type: GrantFiled: November 22, 2016Date of Patent: November 21, 2017Assignee: Shenyang Silicon Technology Co., Ltd.Inventor: Wei Sun
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Patent number: 9824892Abstract: A method for growing semiconductor wafers by lateral diffusion liquid phase epitaxy is described. Also provided are a refractory device for practicing the disclosed method and semiconductor wafers prepared by the disclosed method and device. The disclosed method and device allow for significant cost and material waste savings over current semiconductor production technologies.Type: GrantFiled: May 17, 2012Date of Patent: November 21, 2017Assignee: McMaster UniversityInventors: Adrian Kitai, Haoling Yu, Bo Li
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Patent number: 9824893Abstract: Thin tin oxide films are used as spacers in semiconductor device manufacturing. In one implementation, thin tin oxide film is conformally deposited onto a semiconductor substrate having an exposed layer of a first material (e.g., silicon oxide or silicon nitride) and a plurality of protruding features comprising a second material (e.g., silicon or carbon). For example, 10-100 nm thick tin oxide layer can be deposited using atomic layer deposition. Next, tin oxide film is removed from horizontal surfaces, without being completely removed from the sidewalls of the protruding features. Next, the material of protruding features is etched away, leaving tin oxide spacers on the substrate. This is followed by etching the unprotected portions of the first material, without removal of the spacers. Next, underlying layer is etched, and spacers are removed. Tin-containing particles can be removed from processing chambers by converting them to volatile tin hydride.Type: GrantFiled: June 28, 2016Date of Patent: November 21, 2017Assignee: Lam Research CorporationInventors: David Charles Smith, Richard Wise, Arpan Mahorowala, Patrick A. Van Cleemput, Bart J. van Schravendijk
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Patent number: 9824894Abstract: Described herein are methods for flattening a substrate, such as a semiconductor wafer, to reduce bowing in such substrates. Methods include treating or bombarding a backside surface of a substrate with particles of varying doses, densities, and spatial locations. Particle bombardment and selection is such that the substrate becomes more planar by selectively increasing or decreasing z-height points to reduce overall deflection. One or more tensile or compressive films can be added to the backside surface to be selectively relaxed at specific point locations. Such methods can correct bowing in substrates resulting from various fabrication processes such as thermal annealing.Type: GrantFiled: April 9, 2015Date of Patent: November 21, 2017Assignee: TOKYO ELECTRON LIMITEDInventor: Anton J. deVilliers
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Patent number: 9824895Abstract: A method of integrating a silicon-oxide-nitride-oxide-silicon (SONOS) transistor into a complementary metal-oxide-silicon (CMOS) baseline process. The method includes the steps of forming the gate oxide layer of at least one metal-oxide-silicon (MOS) transistor prior to forming a non-volatile (NV) gate stack of the SONOS transistor.Type: GrantFiled: December 6, 2016Date of Patent: November 21, 2017Assignee: Cypress Semiconductor CorporationInventor: Krishnaswamy Ramkumar
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Patent number: 9824896Abstract: A substrate is disposed on a substrate holder within a process module. The substrate includes a mask material overlying a target material with at least one portion of the target material exposed through an opening in the mask material. A plasma is generated in exposure to the substrate. For a first duration, a bias voltage is applied at the substrate holder at a first bias voltage setting corresponding to a high bias voltage level. For a second duration, after completion of the first duration, a bias voltage is applied at the substrate holder at a second bias voltage setting corresponding to a low bias voltage level. The second bias voltage setting is greater than 0 V. The first and second durations are repeated in an alternating and successive manner for an overall period of time necessary to remove a required amount of the target material exposed on the substrate.Type: GrantFiled: November 4, 2015Date of Patent: November 21, 2017Assignee: Lam Research CorporationInventors: Zhongkui Tan, Qian Fu, Ying Wu, Qing Xu, John Drewery
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Patent number: 9824897Abstract: A method is provided for the processing of a device having a crystalline silicon region containing an internal hydrogen source. The method comprises: i) applying encapsulating material to each of the front and rear surfaces of the device to form a lamination; ii) applying pressure to the lamination and heating the lamination to bond the encapsulating material to the device; and iii) cooling the device, where the heating step or cooling step or both are completed under illumination.Type: GrantFiled: July 24, 2014Date of Patent: November 21, 2017Assignee: NEWSOUTH INNOVATIONS PTY LIMITEDInventors: Brett Jason Hallam, Matthew Bruce Edwards, Stuart Ross Wenham, Phillip George Hamer, Catherine Emily Chan, Chee Mun Chong, Pei Hsuan Lu, Ly Mai, Li Hui Song, Adeline Sugianto, Alison Maree Wenham, Guang Qi Xu
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Patent number: 9824898Abstract: To provide a highly reliable semiconductor device using an oxide semiconductor. The semiconductor device includes a first electrode layer; a second electrode layer positioned over the first electrode layer and including a stacked-layer structure of a first conductive layer and a second conductive layer; and an oxide semiconductor film and an insulating film positioned between the first electrode layer and the second electrode layer in a thickness direction. The first conductive layer and the insulating film have a first opening portion in a region overlapping with the first electrode layer, The oxide semiconductor film has a second opening portion in a region overlapping with the first opening portion. The second conductive layer is in contact with the first electrode layer exposed in the first opening portion and the second opening portion.Type: GrantFiled: February 10, 2017Date of Patent: November 21, 2017Assignee: Semiconductor Energy Laboratory Co., LTD.Inventors: Shinya Sasagawa, Motomu Kurata, Katsuaki Tochibayashi
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Patent number: 9824899Abstract: The present invention provides an etching liquid which has a suitable etching rate for etching of an oxide containing zinc and tin and is suppressed in change of the etching rate due to dissolution of the oxide, while being free from the generation of a precipitate. The corrosiveness of this etching liquid to wiring materials is low enough to be ignored, and this etching liquid has excellent linearity of a pattern shape. The present invention uses an etching liquid which contains (A) one or more substances selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, methanesulfonic acid, perchloric acid and salts of these acids, and (B) oxalic acid or a salt thereof and water, and which has a pH of from ?1 to 1.Type: GrantFiled: December 16, 2014Date of Patent: November 21, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Mari Shigeta, Kunio Yube
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Patent number: 9824900Abstract: The deterioration of the resin base materials in the bonded structure is prevented. In a bonded structure containing two base materials at least one of which is a resin, an oxide which contains either P or Ag, V, and Te, and are formed by softening on the two base materials, bond the two base materials. In addition, in a method for producing a bonded structure containing two base materials at least one of which is a resin containing: supplying an oxide containing either P or Ag, V, and Te to the base material; and applying electromagnetic waves to the oxide, whereby the oxide, which soften on the substrates, bond the two base material.Type: GrantFiled: November 9, 2012Date of Patent: November 21, 2017Assignee: Hitachi, Ltd.Inventors: Motomune Kodama, Takashi Naito, Yuichi Sawai, Tadashi Fujieda, Takuya Aoyagi, Masanori Miyagi
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Patent number: 9824901Abstract: Molded electronics package cavities are formed by placing a sacrificial material in the mold and then decomposing, washing, or etching away this sacrificial material. The electronics package that includes this sacrificial material is then overmolded, with little or no change needed in the overmolding process. Following overmolding, the sacrificial material is removed such as using a thermal, chemical, optical, or other decomposing process. This proposed use of sacrificial material allows for formation of complex 3-D cavities, and reduces or eliminates the need for precise material removal tolerances. Multiple instances of the sacrificial material may be removed simultaneously, replacing a serial drilling process with a parallel material removal manufacturing process.Type: GrantFiled: March 30, 2016Date of Patent: November 21, 2017Assignee: Intel CorporationInventors: Sasha Oster, Adel A. Elsherbini, Joshua D. Heppner, Shawna M. Liff
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Patent number: 9824902Abstract: An integrated fan-out package including a chip module, a second integrated circuit, a second insulating encapsulation, and a redistribution circuit structure is provided. The chip module includes a first insulating encapsulation and a first integrated circuit embedded in the first insulating encapsulation, and the first integrated circuit includes a first surface and first conductive terminals on the first surface. The second integrated circuit includes a second surface and second conductive terminals on the second surface. The chip module and the second integrated circuit are embedded in the second insulating encapsulation. The first and second conductive terminals are accessibly exposed from the first and second insulating encapsulation. The redistribution circuit structure covers the first surface, the second surfaces, the first insulating encapsulation, and the second insulating encapsulation. The redistribution circuit structure is electrically connected to the first and second conductive terminals.Type: GrantFiled: July 12, 2016Date of Patent: November 21, 2017Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Hao-Cheng Hou, Chien-Hsun Lee, Chen-Hua Yu, Chung-Shi Liu, Jung-Wei Cheng, Ping-Kang Huang, Sao-Ling Chiu, Tsung-Ding Wang
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Patent number: 9824903Abstract: A substrate cleaning apparatus including a self-cleaning device is disclosed. The substrate cleaning apparatus includes a self-cleaning device configured to clean a cylindrical scrub-cleaning tool that is rubbed against a substrate surface. The self-cleaning device includes a cleaning body having an inner circumferential surface that is shaped along an circumferential surface of the scrub-cleaning tool, and at least one cleaning nozzle configured to eject a cleaning fluid toward the circumferential surface of the scrub-cleaning tool through a gap between the circumferential surface of the scrub-cleaning tool and the inner circumferential surface of the cleaning body.Type: GrantFiled: April 23, 2014Date of Patent: November 21, 2017Assignee: EBARA CORPORATIONInventor: Tomoatsu Ishibashi
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Patent number: 9824904Abstract: A chuck for a plasma processor comprises a temperature-controlled base, a thermal insulator, a flat support, and a heater. The temperature-controlled base is controlled in operation a temperature below the desired temperature of a workpiece. The thermal insulator is disposed over at least a portion of the temperature-controlled base. The flat support holds a workpiece and is disposed over the thermal insulator. A heater is embedded within the flat support and/or mounted to an underside of the flat support. The heater includes a plurality of heating elements that heat a plurality of corresponding heating zones. The power supplied and/or temperature of each heating element is controlled independently. The heater and flat support have a combined temperature rate change of at least 1° C. per second.Type: GrantFiled: January 12, 2015Date of Patent: November 21, 2017Assignee: LAM RESEARCH CORPORATIONInventors: Neil Benjamin, Robert Steger
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Patent number: 9824905Abstract: A semiconductor manufacturing device has an upper cover configured to be arranged above top surface of unshielded semiconductor device which are mounted on a tray placed on a carrier to go through electromagnetic shielding, and a displacement detector configured to detect an abnormality when the upper cover is raised by at least one of the semiconductor device which is brought into contact with a bottom surface of the upper cover.Type: GrantFiled: September 10, 2014Date of Patent: November 21, 2017Assignee: TOSHIBA MEMORY CORPORATIONInventors: Katsunori Shibuya, Takashi Imoto, Soichi Homma, Takeshi Watanabe, Yuusuke Takano
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Patent number: 9824906Abstract: In one embodiment, a tray that includes a dielectric frame structure, a re-adherable pad and a marking is disclosed. The dielectric frame structure includes a recessed region where the re-adherable pad is formed. A plurality of integrated circuits is placed on a re-adherable surface of the re-adherable pad. The marking on the dielectric frame that is reflective of a given input-output pin position for each integrated circuit in the plurality of integrated circuits in the tray. In addition to that, two methods are also disclosed. First, a method of handling the integrated circuits using the tray is disclosed. Second, a method of forming the tray is also disclosed.Type: GrantFiled: August 27, 2014Date of Patent: November 21, 2017Assignee: Altera CorporationInventor: Terry Lynne Barrette
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Patent number: 9824907Abstract: A gas purge apparatus, a load port apparatus, and a gas purge method are capable of filling a container with a cleaning gas without leaning the container to be purged. The first and second purge nozzles are configured to be escalated so that the first purge nozzle 30-1 contacts with the first purge port 5-1 whose distance to the regulating distance 90 is near before the second purge nozzle 30-2 contacts with the second purge port 5-2.Type: GrantFiled: March 18, 2016Date of Patent: November 21, 2017Assignee: TDK CORPORATIONInventors: Hiroshi Igarashi, Tomoshi Abe, Nozomu Kato
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Patent number: 9824908Abstract: In this system, regarding an conveyance object placed on a rotary table, based on positions temporarily set previously as a taking position of the disk-shaped conveyance object in a storing container and a reference position of the rotary table, information of the taking position of the conveyance object in the storing container and of the reference position of the rotary table is acquired based on information of the deviation of the conveyance object placed on the rotary table with respect to the reference position of the rotary table acquired by a sensor portion so as to teach a conveying operation of the conveyance object from the storing container to the rotary table by the robot based on the acquired position information.Type: GrantFiled: May 5, 2015Date of Patent: November 21, 2017Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, KAWASAKI ROBOTICS (USA), INC.Inventors: Hiroyuki Yoshida, Masaya Yoshida, Takao Yamaguchi, Daniel Chan
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Patent number: 9824909Abstract: A chuck for aligning a first planar substrate in parallel to a second planar substrate includes a top plate having a top surface for arrangement of the first planar substrate. A bottom plate is at least one distance measuring sensor configured to measure a distance between the top surface of the top plate and a surface of the second planar substrate, and at least three linear actuators in contact with the top plate and the bottom plate. The method for setting a gap between the first and second planar substrate includes measuring the thickness of the first planar substrate and measuring between a surface of the second planar substrate and the top surface of the top plate. The tilt adjusts between a top surface of the first planar substrate or the chuck and the surface of the second planar substrate by using at least three linear actuators of the chuck.Type: GrantFiled: December 4, 2013Date of Patent: November 21, 2017Assignee: SUSS MICROTEC LITHOGRAPHY GMBHInventors: Sven Hansen, Thomas Huelsmann, Katrin Schindler
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Patent number: 9824910Abstract: An electrostatic chuck is disclosed. In one aspect, the electrostatic chuck includes a top plate, wherein first and second regions adjacent to each other are formed at a surface of the top plate. The electrostatic chuck also includes a first absorption plate positioned at the first region and a second absorption plate positioned at the second region to be separated from the first absorption plate. The first and second absorption plates are configured to support the absorption target.Type: GrantFiled: June 16, 2015Date of Patent: November 21, 2017Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Min Soo Kim, Sok Won Noh
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Patent number: 9824911Abstract: A substrate support for supporting a substrate when forming a film on a surface of the substrate by chemical vapor deposition. The substrate support includes a graphite material having a recessed portion for accommodating the substrate, a multilayer film on the recessed portion and consisting of a first degassing prevention film of SiC and a sublimation prevention film of TaC or HfC stacked together, and a second degassing prevention film of SiC located on portions of the graphite material other than the recessed portion.Type: GrantFiled: March 5, 2013Date of Patent: November 21, 2017Assignee: Mitsubishi Electric CorporationInventors: Akihito Ohno, Zempei Kawazu
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Patent number: 9824912Abstract: There is provided a method for transforming an electronic device from an initial state, wherein the device includes a first substrate and a second substrate, the first and second substrates being joined by means of a bonding interfaced using their respective first faces, wherein the first substrate includes at least one cavity, produced using the first face of the first substrate, the cavity including a bottom bordered by at least one peripheral region and being at least partially filled with a buffer layer, in the bottom of the cavity, and wherein the first face of the second substrate is at least partly opposite the cavity of the first substrate. The method also includes a step of removing the bottom of the cavity of the first substrate from a first face, opposite to the first face of the first substrate.Type: GrantFiled: December 16, 2015Date of Patent: November 21, 2017Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Michel Pellat, Franck Fournel, Pierre Montmeat
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Patent number: 9824913Abstract: The invention provides an isolation structure and a manufacturing method thereof for a high-voltage device in a high-voltage BCD process, the isolation structure comprising: a semiconductor substrate having a first type of doping; an epitaxial layer having a second type of doping over the semiconductor substrate, wherein the first type of doping is opposite to the second type of doping; an isolation region having the first type of doping, wherein the isolation region extends through the epitaxial layer into the semiconductor substrate, and wherein the isolation region has a doping concentration on the same order as a doping concentration of the epitaxial layer; a field oxide layer over the isolation region. This invention effectively isolates the epitaxial island where the BCD high-voltage device is located, thereby increasing the breakdown voltage of the high-voltage device in the BCD process.Type: GrantFiled: March 29, 2013Date of Patent: November 21, 2017Assignees: Hangzhou Silan Integrated Circuit Co., Ltd., Hangzhou Silan Microelectronics Co., Ltd.Inventors: Yongxiang Wen, Shaohua Zhang, Yulei Jiang, Yanghui Sun, Guoqiang Yu
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Patent number: 9824914Abstract: A method for forming a semiconductor device includes forming a buried doped layer in a semiconductor substrate and forming a plurality of first trenches that expose the buried doped layer. A first dielectric layer is formed covering sidewalls of the first trenches, and a doped polysilicon layer is formed covering side surfaces of the first dielectric layer and bottom portions of the first trenches. The method also includes forming a second trench in each of the plurality of first trenches, and each second trench extending through a bottom portion of the doped polysilicon layer and the buried doped layer into a lower portion of the substrate. The method also includes forming a second dielectric layer inside each second trench. An isolation pocket structure is formed that includes the doped buried layer at the bottom and sidewalls that includes the doped polysilicon layer sandwiched between the first and second dielectric layers.Type: GrantFiled: February 21, 2017Date of Patent: November 21, 2017Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Guangli Yang, Xianyong Pu, Li Liu, Chihchung Tai, Gangning Wang, Hong Sun
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Patent number: 9824915Abstract: The invention relates to a structure for radiofrequency applications comprising: a monocrystalline substrate, a polycrystalline silicon layer directly on the monocrystalline substrate, and an active layer on the polycrystalline silicon layer intended to receive radiofrequency components. At least a first portion of the polycrystalline silicon layer extending from an interface of the polycrystalline silicon layer with the monocrystalline substrate layer includes carbon and/or nitrogen atoms located at the grain boundaries of the polycrystalline silicon layer at a concentration of between 2% and 20%. A process for manufacturing such a structure includes, during deposition of at least a first portion of such a polycrystalline silicon layer located at the interface with the monocrystalline substrate, depositing carbon and/or atoms in the at least a first portion.Type: GrantFiled: September 14, 2016Date of Patent: November 21, 2017Assignees: Soitec, Peregrine Semiconductor CorporationInventors: Bich-Yen Nguyen, Christophe Maleville, Sinan Goktepeli, Anthony Mark Miscione, Alain Duvallet
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Patent number: 9824916Abstract: A method of forming a mask layout includes forming a layout of a first mask including a lower wiring structure pattern and a dummy lower wiring structure pattern. A layout of a second mask overlapping the first mask and including an upper wiring structure pattern and a dummy upper wiring structure pattern is formed. A layout of a third mask including a first via structure pattern and a first dummy via structure pattern is formed. A layout of a fourth mask including a second via structure pattern and a second dummy via structure pattern is formed. The second via structure pattern may commonly overlap the lower wiring structure pattern and the upper wiring structure pattern, and the second dummy via structure pattern may commonly overlap the dummy lower wiring structure pattern and the dummy upper wiring structure pattern. The fourth mask may overlap the third mask.Type: GrantFiled: August 29, 2016Date of Patent: November 21, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: In-Wook Oh, Jong-Hyun Lee, Sung-Wook Hwang
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Patent number: 9824917Abstract: The disclosure relates to using a single chamber for multiple treatments resulting in a semiconductor chip having an interconnect. An exemplary process many include forming a via to expose several layers of a microchip. The layers may include, pattered dielectric layer, a capping layer, a first metal layer and an insulator. A surface modification step is then implemented to modify and/or densify the treated surfaces of the dielectric surface. A metal compound removal step is then implemented to remove metal compounds from the bottom of the via. Finally, the via is filled with a conductive material. The surface modification and the metal compound removal steps are implemented in one chamber.Type: GrantFiled: April 25, 2017Date of Patent: November 21, 2017Assignee: International Business Machines CorporationInventors: Chih-chao Yang, Daniel Charles Edelstein
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Patent number: 9824918Abstract: A method of manufacturing a semiconductor device includes providing a semiconductor substrate, sequentially forming an etch stop layer and an interlayer dielectric layer on the semiconductor substrate, forming a copper metal interconnect structure in the interlayer dielectric layer, forming a copper layer in the copper metal interconnect structure, forming a cobalt layer on the copper layer, and forming an aluminum nitride layer on the cobalt layer. The stack of cobalt layer and copper layer effectively suppresses electromigration caused by diffusion of the copper layer into the interlayer dielectric layer, improves the adhesion between the copper layer and the etch stop layer, and prevents delamination.Type: GrantFiled: December 31, 2013Date of Patent: November 21, 2017Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventor: Ming Zhou
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Patent number: 9824919Abstract: There is provided a method of filling a recess with a germanium-based film composed of germanium or silicon germanium in a substrate to be processed on which an insulating film having the recess formed therein is formed, the method including: forming a silicon film on a surface of the insulating film at a thickness as not to completely fill the recess; subsequently, etching the silicon film such that the silicon film remains only in a bottom portion of the recess; and subsequently, selectively growing the germanium-based film composed of germanium or silicon germanium on the silicon film remaining in the bottom portion of the recess and selectively filling the recess with the germanium-based film.Type: GrantFiled: March 6, 2017Date of Patent: November 21, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Yoichiro Chiba, Daisuke Suzuki, Atsushi Endo
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Patent number: 9824920Abstract: One method disclosed includes, among other things, forming a first plurality of gate cavities in a first dielectric layer. A work function material layer is formed in the first plurality of gate cavities. A first conductive material is formed in at least a subset of the first plurality of gate cavities above the work function material layer to define a first plurality of gate structures. A first contact recess is formed in the first dielectric layer between two of the first plurality of gate structures. A second conductive material is formed in the first contact recess. The work function material layer is recessed selectively to the first and second conductive materials to define a plurality of cap recesses. A cap layer is formed in the plurality of cap recesses.Type: GrantFiled: April 4, 2016Date of Patent: November 21, 2017Assignee: GLOBALFOUNDRIES Inc.Inventors: Chanro Park, Ruilong Xie, Hoon Kim, Min Gyu Sung
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Patent number: 9824921Abstract: A method provides a structure having a FinFET in an Rx region, the FinFET including a channel, source/drain (S/D) regions and a gate, the gate including gate metal. A cap is formed over the gate having a high-k dielectric liner and a core. Trench silicide (TS) is disposed on sides of the gate. The TS is recessed to a level above a level of the gate and below a level of the cap. An oxide layer is disposed over the structure. A CB trench is patterned into the oxide layer within the Rx region to expose the core and liner at an intermediate portion of the CB trench. The core is selectively etched relative to the liner to extend the CB trench to a bottom at the gate metal. The CB trench is metalized to form a CB contact.Type: GrantFiled: July 6, 2016Date of Patent: November 21, 2017Assignee: GLOBALFOUNDRIES Inc.Inventors: Andre Labonte, Ruilong Xie, Xunyuan Zhang
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Patent number: 9824922Abstract: A method includes forming a dielectric layer over a conductive feature. A first mask having a first opening is formed over the dielectric layer. A second mask is formed over the first mask. A third mask having a second opening is formed over the second mask. A fourth mask having a third opening is formed over the third mask, a portion of the third opening overlapping with the second opening. The portion of the third opening is transferred to the second mask to form a fourth opening, a portion of the fourth opening overlapping with the first opening. The portion of the fourth opening is transferred to the dielectric layer to form a fifth opening. The fifth opening is extended into the dielectric layer to form an extended fifth opening, the extended fifth opening exposing the conductive feature. The extended fifth opening is filled with a conductive material.Type: GrantFiled: May 22, 2017Date of Patent: November 21, 2017Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Hao Chen, Ta-Ching Yu
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Patent number: 9824923Abstract: A semiconductor device has a first semiconductor die and conductive vias in the first semiconductor die. The conductive vias can be formed by extending the vias partially through a first surface of the first semiconductor die. A portion of a second surface of the first semiconductor die is removed to expose the conductive vias. A plurality of conductive pillars is formed over the first surface the first semiconductor die. The conductive pillars include an expanded base electrically connected to the conductive vias. A width of the expanded base of the conductive pillars is greater than a width of a body of the conductive pillars. A conductive layer is formed over a second surface of the first semiconductor die. The conductive layer is electrically connected to the conductive vias. A second semiconductor die is mounted to the first semiconductor die with a second conductive pillar having an expanded base.Type: GrantFiled: May 10, 2012Date of Patent: November 21, 2017Assignee: STATS ChipPAC Pte. Ltd.Inventors: Dzafir Shariff, Kwong Loon Yam, Lai Yee Chia, Yung Kuan Hsiao
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Patent number: 9824924Abstract: Embodiments are directed to a package that includes an electric device having a recess. In one embodiment, the electric device is a sensor and the recess reduces signal drift of the sensor caused by thermal expansion of the package. In another embodiment, the recess is substantially filled with adhesive material, thus increasing adhesion between the electric device and a substrate of the package while at the same time allowing for lower adhesive fillets.Type: GrantFiled: March 29, 2013Date of Patent: November 21, 2017Assignee: STMicroelectronics Pte Ltd.Inventors: Kim-Yong Goh, Xueren Zhang, Yiyi Ma
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Patent number: 9824925Abstract: Alignment marks on a semiconductor device surface are exposed and exposed surfaces cleaned after an obscuring coating is applied over the surface and marks. The surface can be an attachment surface of the device and can include C4 solder bumps of a flip-chip type device and the coating can include a wafer level underfill coating that is substantially optically opaque. Laser ablation, such as with a UV laser, can remove the coating while minimizing heat transfer to the device.Type: GrantFiled: June 11, 2015Date of Patent: November 21, 2017Assignee: International Business Machines CorporationInventors: Mukta G. Farooq, Kevin S. Petrarca, Nicholas A. Polomoff, Katsuyuki Sakuma
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Patent number: 9824926Abstract: A wafer is transferred to a holding surface of a chuck table by using a transfer unit having a suction pad. The front side of the wafer is held under suction through a protective tape on the holding surface, and the suction pad is removed from the back side of the wafer. A modified layer is formed on the back side of the wafer along division lines. The wafer is transferred by mounting the wafer held by the suction pad on the holding surface and sandwiching the wafer between the suction pad and the holding surface of the chuck table. A suction force is applied to the holding surface of the chuck table to thereby hold the front side of the wafer through the protective tape on the holding surface of the chuck table under suction, and the suction pad is then removed from the back side of the wafer.Type: GrantFiled: April 24, 2017Date of Patent: November 21, 2017Assignee: DISCO CORPORATIONInventor: Masaru Nakamura
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Patent number: 9824927Abstract: A method for producing a semiconductor device in accordance with various embodiments may include providing a semiconductor workpiece attached to a first carrier; dicing the semiconductor workpiece and the carrier so as to form at least one individual semiconductor chip; mounting the at least one semiconductor chip with a side facing away from the carrier, to an additional carrier.Type: GrantFiled: November 9, 2016Date of Patent: November 21, 2017Assignee: INFINEON TECHNOLOGIES AUSTRIA AGInventor: Andreas Voerckel
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Patent number: 9824928Abstract: A semiconductor device may include a first-type substrate. The semiconductor device may further include a second-type well configured to form a PN junction with the first-type substrate. The semiconductor device may further include a diode component configured to form a diode with the second-type well. The diode may be connected to the PN junction in a reverse series connection. The second-type may be N-type if the first-type is P-type, and wherein the second-type may be P-type if the first-type is N-type.Type: GrantFiled: November 4, 2014Date of Patent: November 21, 2017Assignee: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATIONInventors: Ming Wang, Qiancheng Ma, Yong Cheng, Lihua Teng
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Patent number: 9824929Abstract: A semiconductor device includes a n-type gate structure over a first semiconductor fin, in which the n-type gate structure is fluorine incorporated and includes a n-type work function metal layer overlying the first high-k dielectric layer. The n-type work function metal layer includes a TiAl (titanium aluminum) alloy, in which an atom ratio of Ti (titanium) to Al (aluminum) is in a range substantially from 1 to 3. The semiconductor device further includes a p-type gate structure over a second semiconductor fin, in which the p-type gate structure is fluorine incorporated includes a p-type work function metal layer overlying the second high-k dielectric layer. The p-type work function metal layer includes titanium nitride (TiN), in which an atom ratio of Ti to N (nitrogen) is in a range substantially from 1:0.9 to 1:1.1.Type: GrantFiled: December 16, 2016Date of Patent: November 21, 2017Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shiu-Ko Jangjian, Ren-Hau Yu, Chi-Cherng Jeng