Via Connections In Multilevel Interconnection Structure (epo) Patents (Class 257/E23.145)
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Patent number: 12074064Abstract: A method includes forming a plurality of dielectric layers over a semiconductor substrate, etching the plurality of dielectric layers and the semiconductor substrate to form an opening, depositing a first liner extending into the opening, and depositing a second liner over the first liner. The second liner extends into the opening. The method further includes filling a conductive material into the opening to form a through-via, and forming conductive features on opposing sides of the semiconductor substrate. The conductive features are electrically interconnected through the through-via.Type: GrantFiled: July 25, 2022Date of Patent: August 27, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Ming-Tsu Chung, Ku-Feng Yang, Tsang-Jiuh Wu, Wen-Chih Chiou, Chen-Hua Yu
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Patent number: 12051620Abstract: A method for forming a semiconductor structure includes forming a gate structure on a substrate; depositing a first dielectric layer over the gate structure; depositing a second dielectric layer over the first dielectric layer and having a different density than the first dielectric layer; performing a first etching process on the first and second dielectric layers to form a trench; performing a second etching process on the first and second dielectric layers to modify the trench; filling a conductive material in the modified trench.Type: GrantFiled: June 21, 2022Date of Patent: July 30, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Hung-Chang Sun, Po-Chin Chang, Akira Mineji, Zi-Wei Fang, Pinyen Lin
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Patent number: 12015018Abstract: A semiconductor package includes a first redistribution substrate, a first semiconductor chip mounted on the first redistribution substrate, a first molding layer on the first redistribution substrate and covering a top surface and lateral surfaces of the first semiconductor chip, a second redistribution substrate on the first molding layer, and an adhesive film between the second redistribution substrate and the first molding layer. The adhesive film is spaced apart from the first semiconductor chip and covers a top surface of the first molding layer. A lateral surface of the adhesive film is coplanar with a lateral surface of the second redistribution substrate.Type: GrantFiled: December 1, 2022Date of Patent: June 18, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeonjeong Hwang, Kyoung Lim Suk, Seokhyun Lee, Jaegwon Jang
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Patent number: 12000044Abstract: Methods of depositing a metal film with high purity are discussed. Some embodiments utilize a thermal ALD process comprising an alkyl halide and a metal precursor. Some embodiments selectively deposit a metal film with high purity on a metal surface over a dielectric surface. Some embodiments selectively deposit a metal film with high purity on a dielectric surface over a metal surface. Some embodiments deposit a metal film with greater than 99% metal atoms on an atomic basis.Type: GrantFiled: June 21, 2019Date of Patent: June 4, 2024Assignee: Applied Materials, Inc.Inventors: Sang Ho Yu, Seshadri Ganguli, Byunghoon Yoon, Wei Min Chen
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Patent number: 11996360Abstract: A semiconductor structure includes a channel region of a transistor in a semiconductor fin, source and drain regions of the transistor on the semiconductor fin and at opposite sides of the channel region, a gate of the transistor over the channel region, and a first metal structure. The first metal structure is disposed over a first one of the source and drain regions. The first metal structure includes a first portion lower than a top surface of the gate, a second portion higher than the top surface of the gate, and a third portion over the second portion, wherein the second portion is narrower than the first portion, and the third portion is wider than the second portion.Type: GrantFiled: April 20, 2022Date of Patent: May 28, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventor: Jhon-Jhy Liaw
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Patent number: 11950407Abstract: Embodiments herein describe techniques for a memory device including at least two memory cells. A first memory cell includes a first storage cell and a first transistor to control access to the first storage cell. A second memory cell includes a second storage cell and a second transistor to control access to the second storage cell. A shared contact electrode is shared between the first transistor and the second transistor, the shared contact electrode being coupled to a source area or a drain area of the first transistor, coupled to a source area or a drain area of the second transistor, and further being coupled to a bit line of the memory device. Other embodiments may be described and/or claimed.Type: GrantFiled: March 24, 2020Date of Patent: April 2, 2024Assignee: Intel CorporationInventors: Juan G. Alzate Vinasco, Travis W. Lajoie, Abhishek A. Sharma, Kimberly L Pierce, Elliot N. Tan, Yu-Jin Chen, Van H. Le, Pei-Hua Wang, Bernhard Sell
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Patent number: 11894269Abstract: Some embodiments include an integrated assembly having a stack of alternating first and second levels. The first levels contain conductive material and the second levels contain insulative material. At least some of the first and second levels are configured as steps. Each of the steps has one of the second levels over an associated one of the first levels. A layer is over the steps and is spaced from the stack by an intervening insulative region. Insulative material is over the layer. Conductive interconnects extend through the insulative material, through the layer, through the intervening insulative region and to the conductive material within the first levels of the steps. Some embodiments include methods of forming integrated assemblies.Type: GrantFiled: January 17, 2022Date of Patent: February 6, 2024Inventors: John D. Hopkins, Lifang Xu, Nancy M. Lomeli
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Patent number: 11876055Abstract: A semiconductor device, including: a semiconductor substrate formed of silicon carbide, components being formed at one surface of the semiconductor substrate; a periphery portion disposed at a pre-specified region of a periphery of the semiconductor substrate, the components not being formed at the periphery portion; and a plurality of trenches or portions of trenches formed at the periphery portion, an interior of each of the trenches being filled with a material with a different coefficient of thermal expansion from the silicon carbide.Type: GrantFiled: October 21, 2021Date of Patent: January 16, 2024Assignee: LAPIS SEMICONDUCTOR CO., LTD.Inventors: Kenichi Furuta, Masao Tsujimoto, Nobuhiro Terada, Masahiro Haraguchi, Tsuyoshi Inoue, Yuuichi Kaneko, Hiroki Kuroki, Takaaki Kodaira
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Patent number: 11856708Abstract: Disclosed herein are devices comprising stretchable 3D circuits and methods for fabricating the circuits. The fabrication process includes providing in the elastomeric polymer as a substrate and providing conductive interconnects within the substrate encased in an insulating polymer, such as polyimide, to provide a stiffness gradient between the conductive interconnects and the flexible elastomeric substrate. The circuit may be fabricated as a multilayer construction using three-dimensional pillars as vias and as external interconnects to the circuit.Type: GrantFiled: March 21, 2022Date of Patent: December 26, 2023Assignee: CARNEGIE MELLON UNIVERSITYInventors: Gary K. Fedder, Rahul Panat, Jacob Brenneman, Derya Z. Tansel
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Patent number: 11824052Abstract: An optoelectronic device includes an optical integrated circuit having a first surface and a second surface opposite the first surface. The optical integrated circuit has an optical zone of the first surface of the optical integrated circuit. The device includes an electrically insulating material disposed over the optical integrated circuit, where the electrically insulating material partially covers the first surface so as to expose the optical zone.Type: GrantFiled: June 9, 2021Date of Patent: November 21, 2023Assignee: STMicroelectronics S.r.l.Inventor: Mark Andrew Shaw
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Patent number: 11810895Abstract: A multichip module comprises a carrier, a plurality of chips, an electrical insulating layer, and an electrical interconnect structure. The carrier includes a bottom wall and four side walls defining an internal cavity. The chips are positioned in the internal cavity, with each chip including a plurality of bond pads. The electrical insulating layer is formed from electrically insulating material and is positioned on an upper surface of the carrier and the chips. The electrical interconnect structure includes a plurality of interconnect traces, with each interconnect trace formed from electrically conductive material and electrically connected to a first bond pad on a first chip and a second bond pad on a second chip. Each interconnect trace includes a bridge having a segment that is spaced apart from, and positioned above, the electrical insulating layer.Type: GrantFiled: October 14, 2021Date of Patent: November 7, 2023Assignee: Honeywell Federal Manufacturing & Technologies, LLCInventors: Barbara Diane Young, Steven James Sedlock, Kevin Christopher Ledden, Alan Ahlberg Elliot
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Patent number: 11791205Abstract: A method includes bonding a first wafer to a second wafer. The first wafer includes a plurality of dielectric layers, a metal pipe penetrating through the plurality of dielectric layers, and a dielectric region encircled by the metal pipe. The dielectric region has a plurality of steps formed of sidewalls and top surfaces of portions of the plurality of dielectric layers that are encircled by the metal pipe. The method further includes etching the first wafer to remove the dielectric region and to leave an opening encircled by the metal pipe, extending the opening into the second wafer to reveal a metal pad in the second wafer, and filling the opening with a conductive material to form a conductive plug in the opening.Type: GrantFiled: April 23, 2021Date of Patent: October 17, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ssu-Chiang Weng, Ping-Hao Lin, Fu-Cheng Chang
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Patent number: 11756825Abstract: A semiconductor structure is provided, including a conductive layer, a dielectric layer over the conductive layer, a ruthenium material in the dielectric layer and in contact with a portion of the conductive layer, and a ruthenium oxide material in the dielectric layer laterally between the ruthenium material and the dielectric layer.Type: GrantFiled: November 20, 2020Date of Patent: September 12, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shen-Nan Lee, Teng-Chun Tsai, Chen-Hao Wu, Chu-An Lee, Chun-Hung Liao, Tsung-Ling Tsai
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Patent number: 11749635Abstract: A semiconductor device includes a first insulating layer, wire contacts spaced apart from each other by the first insulating layer, and a bonding wire connected to the wire contacts. Each of the wire contacts includes a base part in the first insulating layer and a protrusion part protruding from inside to outside the first insulating layer. The protrusion parts of the wire contacts are in contact with the bonding wire.Type: GrantFiled: April 28, 2021Date of Patent: September 5, 2023Assignee: SK hynix Inc.Inventor: Nam Jae Lee
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Patent number: 11742322Abstract: A semiconductor package includes a redistribution structure, a first die, a second die and a buffer layer. The second die is disposed between the first die and the redistribution structure, and the second die is electrically connected to the first die and bonded to the redistribution structure. The buffer layer is disposed on a first sidewall of the second die, wherein a second sidewall of the buffer layer is substantially flush with a third sidewall of the first die.Type: GrantFiled: January 20, 2021Date of Patent: August 29, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ming-Chih Yew, Po-Chen Lai, Shu-Shen Yeh, Po-Yao Lin, Shin-Puu Jeng
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Patent number: 11703640Abstract: A two-channel photonic demultiplexer includes an input region to receive a multi-channel optical signal, two output regions, each adapted to receive a corresponding one of two distinct wavelength channels demultiplexed from the multi-channel optical signal, and a dispersive region including a first material and a second material inhomogeneously interspersed to form a plurality of interfaces that collectively structure the dispersive region to optically separate each of the two distinct wavelength channels from the multi-channel optical signal and respectively guide the first distinct wavelength channel to a first output region and the second distinct wavelength channel to the second output region when the input region receives the multi-channel optical signal. At least one of the first material or the second material is structured within the dispersive region to be schematically reproducible by a feature shape with a pre-determined width.Type: GrantFiled: September 30, 2021Date of Patent: July 18, 2023Assignee: X Development LLCInventors: Martin Schubert, Brian Adolf, Jesse Lu
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Patent number: 11699597Abstract: A package structure and the manufacturing method thereof are provided. The package structure includes a semiconductor die, conductive through vias, an insulating encapsulant, and a redistribution structure. The conductive through vias are electrically coupled to the semiconductor die. The insulating encapsulant laterally encapsulates the semiconductor die and the conductive through vias, wherein the insulating encapsulant has a recess ring surrounding the semiconductor die, the conductive through vias are located under the recess ring, and a vertical projection of each of the conductive through vias overlaps with a vertical projection of the recess ring. The redistribution structure is electrically connected to the semiconductor die and the conductive through vias.Type: GrantFiled: July 29, 2021Date of Patent: July 11, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Li-Hui Cheng, Szu-Wei Lu, Ping-Yin Hsieh, Chih-Hao Chen
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Patent number: 11664347Abstract: Circuit boards, LED lighting systems and methods of manufacture are described. A circuit board includes a ceramic carrier and a body on the ceramic carrier. The body includes dielectric layers and slots formed completely through a thickness of the dielectric layers. The slots are filled with a dielectric material. A conductive pad is provided on a surface of each of the slots opposite the ceramic carrier.Type: GrantFiled: March 4, 2020Date of Patent: May 30, 2023Assignee: LUMILEDS LLCInventors: Loon-Kwang Tan, Tze Yang Hin
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Patent number: 11656121Abstract: An electronic chip supports an optical device and electric connection zones. An insulating coating coats the electronic chip, covers the electric connection zones and exposes the optical device. An optical plugging element is at least partly fastened onto a first face of the insulating coating and is optically coupled to the optical device. Vias pass through the insulating coating from its first face to a second face opposite to the first face. Inner walls of the vias support electrically conductive paths connected to the electric connection zones of the electronic chip by electrically conductive tracks arranged on the first face of the insulating coating. The electrically conductive paths of the vias further have ends protruding onto the second face of the insulating coating.Type: GrantFiled: December 8, 2021Date of Patent: May 23, 2023Assignee: STMicroelectronics (Grenoble 2) SASInventors: Romain Coffy, Younes Boutaleb
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Patent number: 11594518Abstract: A semiconductor package and a method for manufacturing a semiconductor package are provided. The semiconductor package includes a first processing element, a first I/O element, a second processing element, and a second I/O element. The first processing element is on a substrate. The first I/O element is on the substrate and electrically connected to the first processing element. The second processing element is on the substrate. The second I/O element is on the substrate and electrically connected to the second processing element. The first I/O element is electrically connected to and physically separated from the second I/O element.Type: GrantFiled: June 3, 2021Date of Patent: February 28, 2023Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: Chang Chi Lee, Jung Jui Kang, Chiu-Wen Lee, Li Chieh Chen
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Patent number: 11574865Abstract: A method (of manufacturing a semiconductor device) includes: forming via structures in a first via layer over a transistor layer; forming a first via structure of a first deep via arrangement in the first via layer; forming conductive segments in a first metallization layer over the first via layer; forming M_1st routing segments at least a majority of which, relative to a first direction, have corresponding long axes with lengths which at least equal if not exceed a first permissible minimum value for routing segments in the first metallization layer; forming an M_1st interconnection segment having a long axis which is less than the first permissible minimum value and which is included in the first deep via arrangement; and forming via structures in a second via layer over the first metallization layer, including forming a first via structure of the first deep via arrangement in the second via layer.Type: GrantFiled: August 24, 2021Date of Patent: February 7, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ta-Pen Guo, Chien-Ying Chen, Li-Chun Tien, Lee-Chung Lu
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Patent number: 11557595Abstract: A memory device and a method for manufacturing the memory device are provided. The memory device includes a substrate, a plurality of first gate structures, a first dielectric layer, a second dielectric layer, a third dielectric layer and a contact plug. The first gate structures are formed on an array region of the substrate. The first dielectric layer is formed on top surfaces and sidewalls of the first gate structures. The second dielectric layer is formed on the first dielectric layer and in direct contact with the first dielectric layer. The second dielectric layer and the first dielectric layer are made of the same material. The third dielectric layer is formed between the first gate structures and defines a plurality of contact holes exposing the substrate. The contact plug fills the contact holes.Type: GrantFiled: July 10, 2020Date of Patent: January 17, 2023Assignee: WINBOND ELECTRONICS CORP.Inventors: Shu-Ming Lee, Tzu-Ming Ou Yang, Meng-Chang Chan
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Patent number: 11551967Abstract: Vias and methods of making the same. The vias including a middle portion located in a via opening in an interconnect-level dielectric layer, a top portion including a top head that extends above the via opening and extends laterally beyond upper edges of the via opening and a bottom portion including a bottom head that extends below the via opening and extends laterally beyond lower edges of the via opening. The via may be formed from a refractory material.Type: GrantFiled: May 19, 2020Date of Patent: January 10, 2023Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Meng-Pei Lu, Ming-Han Lee, Shin-Yi Yang, Tz-Jun Kuo
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Patent number: 11443983Abstract: An integrated circuit structure comprises a dielectric layer on a substrate. An open structure is in the dielectric layer, and a void-free metal-alloy interconnect is formed in the open structure, wherein the void-free metal-alloy interconnect comprise a metal-alloy comprising a combination of two or more metallic elements excluding any mixing effects of a seed layer or liner deposited in the open structure prior to a metal fill material, and excluding effects of any doping material on the metal fill material.Type: GrantFiled: September 24, 2018Date of Patent: September 13, 2022Assignee: Intel CorporationInventors: Shaestagir Chowdhury, Sirikarn Surawanvijit, Biswadeep Saha, Erica J. Thompson
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Patent number: 11424187Abstract: The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The semiconductor device includes.Type: GrantFiled: August 4, 2020Date of Patent: August 23, 2022Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Tse-Yao Huang
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Patent number: 10777510Abstract: A semiconductor device and a method of manufacture thereof are provided. The method for manufacturing the semiconductor device includes forming a first dielectric layer on a substrate. Next, forming a first dummy metal layer on the first dielectric layer. Then, forming a second dielectric layer over the first dummy metal layer. Furthermore, forming an opening in the second dielectric layer and the first dummy metal layer. Then, forming a dummy via in the opening, wherein the dummy via extending through the second dielectric layer and at least partially through the first dummy metal layer. Finally, forming a second dummy metal layer on the second dielectric layer and contact the dummy via.Type: GrantFiled: January 3, 2017Date of Patent: September 15, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Jian-Hong Lin, Kuo-Yen Liu, Hsin-Chun Chang, Tzu-Li Lee, Yu-Ching Lee, Yih-Ching Wang
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Patent number: 10731273Abstract: Various embodiments include methods and apparatuses comprising methods for formation of and apparatuses including a source material for electronic devices. One such apparatus includes a vertical string of memory cells comprising a plurality of alternating levels of conductor and dielectric material, a semiconductor material extending through the plurality of alternating levels of conductor material and dielectric material, and a source material coupled to the semiconductor material. The source material includes a titanium nitride layer and a source polysilicon layer in direct contact with the titanium nitride layer. Other methods and apparatuses are disclosed.Type: GrantFiled: June 10, 2019Date of Patent: August 4, 2020Assignee: Micron Technology, Inc.Inventors: John Mark Meldrim, Yushi Hu, Yongjun Jeff Hu, Everett Allen McTeer
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Patent number: 10418314Abstract: At least some embodiments of the present disclosure relate to a substrate for packaging a semiconductor device. The substrate includes a first dielectric layer having a first surface and a second surface opposite to the first surface, a first patterned conductive layer adjacent to the first surface of the first dielectric layer, a second patterned conductive layer adjacent to the second surface of the first dielectric layer and electrically connected to the first patterned conductive layer, and an external connection pad tapered from a top surface to a bottom surface. The second patterned conductive layer includes a pad and a trace adjacent to the pad. The external connection pad is disposed on the pad of the second patterned conductive layer. A bottom width of the external connection pad is greater than or equal to a width of the pad of the second patterned conductive layer.Type: GrantFiled: November 1, 2017Date of Patent: September 17, 2019Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventor: Wen-Long Lu
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Patent number: 10344398Abstract: Various embodiments include methods and apparatuses comprising methods for formation of and apparatuses including a source material for electronic devices. One such apparatus includes a vertical string of memory cells comprising a plurality of alternating levels of conductor and dielectric material, a semiconductor material extending through the plurality of alternating levels of conductor material and dielectric material, and a source material coupled to the semiconductor material. The source material includes a titanium nitride layer and a source polysilicon layer in direct contact with the titanium nitride layer. Other methods and apparatuses are disclosed.Type: GrantFiled: January 6, 2016Date of Patent: July 9, 2019Assignee: Micron Technology, Inc.Inventors: John Mark Meldrim, Yushi Hu, Yongjun Jeff Hu, Everett Allen McTeer
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Patent number: 9966336Abstract: A device includes a first low-k dielectric layer, and a copper-containing via in the first low-k dielectric layer. The device further includes a second low-k dielectric layer over the first low-k dielectric layer, and an aluminum-containing metal line over and electrically coupled to the copper-containing via. The aluminum-containing metal line is in the second low-k dielectric layer.Type: GrantFiled: May 20, 2016Date of Patent: May 8, 2018Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chen-Hua Yu, Tien-I Bao
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Patent number: 9941323Abstract: A semiconductor device with a connection pad in a substrate, the connection pad having an exposed surface made of a metallic material that diffuses less readily into a dielectric layer than does a metal of a wiring layer connected thereto.Type: GrantFiled: June 9, 2017Date of Patent: April 10, 2018Assignee: Sony CorporationInventor: Atsushi Okuyama
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Patent number: 9859160Abstract: A method of fabricating a semiconductor interconnect structure by providing a semiconductor structure that includes two dielectric layers. The first dielectric layer has an embedded electrically conductive structure. A second dielectric layer is located above the first dielectric layer. The second dielectric layer and the first dielectric layer have a segment of a dielectric capping layer and a segment of a metal capping layer located between them. The segment of the dielectric capping layer is horizontally planar with the segment of the metal capping layer. The segment of metal capping layer covers and abuts at least a portion of a top surface of the first electrically conductive structure. The method includes forming an opening in the second dielectric layer and the metal capping layer that exposes at least a portion of the first electrically conductive structure and a portion of the dielectric capping layer.Type: GrantFiled: March 15, 2016Date of Patent: January 2, 2018Assignee: International Business Machines CorporationInventors: Conal E. Murray, Chih-Chao Yang
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Patent number: 9741659Abstract: Electrical connections for chip scale packaging are disclosed. In one embodiment, a semiconductor device includes a post-passivation layer disposed over a substrate, the substrate having a first direction of coefficient of thermal expansion mismatch. The semiconductor device includes a first opening through the post-passivation layer, the first opening comprising a plurality of elongated apertures. A longest of the plurality of elongated apertures comprises a first dimension, wherein the first dimension is aligned substantially perpendicular to the first direction of coefficient of thermal expansion mismatch.Type: GrantFiled: December 28, 2015Date of Patent: August 22, 2017Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsien-Wei Chen, Shih-Wei Liang
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Patent number: 9524935Abstract: A methodology enabling filling of high aspect ratio cavities, with no voids or gaps, in an IC device and the resulting device are disclosed. Embodiments include providing active area and/or gate contacts in a first ILD; forming selective protective caps on upper surfaces of the contacts; forming a second ILD on upper surfaces of the protective caps and on an upper surface of the first ILD; forming a hard-mask stack on the second ILD; forming, in the second ILD and hard-mask stack, cavities exposing one or more protective caps; removing selective layers in the stack to decrease depths of the cavities; and filling the cavities with a metal layer, wherein the metal layer in one or more cavities connects to an upper surface of the one or more exposed protective caps.Type: GrantFiled: May 13, 2015Date of Patent: December 20, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Jonathan Lee Rullan, Sunil Kumar Singh
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Patent number: 9040418Abstract: Method of forming a capture pad on a semiconductor substrate. The method includes providing a semiconductor substrate having an active side and an inactive side and having a plurality of unfilled TSVs extending between the active side and the inactive side; filling the TSVs with a metal; defining capture pad areas on at least one of the active side and the inactive side adjacent to the TSVs, the defined capture pad areas comprising insulator islands and open areas; filling the open areas with the same metal to form a capture pad in direct contact with each of the TSVs, each of the capture pads having an all metal portion that follows an outline of each of the TSVs.Type: GrantFiled: November 10, 2013Date of Patent: May 26, 2015Assignee: International Business Machines CorporationInventors: Mukta G. Farooq, John A. Griesemer, Gary Lafontant, Kevin S. Petrarca, Richard P. Volant
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Patent number: 9041208Abstract: A laminate interconnect structure includes a core material and at least one additional layer adjacent the core material, a first electrically conductive via formed in the core material, and a second electrically conductive via formed in the core material, coaxial with the first electrically conductive via and separated from the first electrically conductive via by a non-conductive material.Type: GrantFiled: November 2, 2011Date of Patent: May 26, 2015Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Adam Gallegos, Mark Hinton, Nurwati Suwendi Devnani, John Connor
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Patent number: 9035457Abstract: A substrate with integrated passive devices and method of manufacturing the same are presented. The substrate may include through silicon vias, at least one redistribution layer having a 1st passive device pattern and stacked vias, and an under bump metal layer having a 2nd passive device pattern.Type: GrantFiled: November 29, 2012Date of Patent: May 19, 2015Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chu-Fu Lin, Ming-Tse Lin, Yung-Chang Lin
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Patent number: 9030013Abstract: A structure includes a substrate, a low-k dielectric layer over the substrate, and a conductive barrier layer extending into the low-k dielectric layer. The conductive barrier layer includes a sidewall portion. A metal line in the low-k dielectric layer adjoins the conductive barrier layer. An organic buffer layer is between the sidewall portion of the conductive barrier layer and the low-k dielectric layer.Type: GrantFiled: September 21, 2012Date of Patent: May 12, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chao-Hsien Peng, Hsin-Yen Huang, Hsiang-Huan Lee, Shau-Lin Shue
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Patent number: 9018649Abstract: A nanopatterned surface is prepared by forming a block copolymer film on a miscut crystalline substrate, annealing the block copolymer film, then reconstructing the surface of the annealed block copolymer film The method creates a well-ordered array of voids in the block copolymer film that is maintained over a large area. The nanopatterned block copolymer films can be used in a variety of different applications, including the fabrication of high density data storage media.Type: GrantFiled: October 8, 2013Date of Patent: April 28, 2015Inventors: Thomas P. Russell, Soojin Park, Ting Xu
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Patent number: 9006804Abstract: A method for fabricating a semiconductor device is provided herein and includes the following steps. First, a first interlayer dielectric is formed on a substrate. Then, a gate electrode is formed on the substrate, wherein a periphery of the gate electrode is surrounded by the first interlayer dielectric. Afterwards, a patterned mask layer is formed on the gate electrode, wherein a bottom surface of the patterned mask layer is leveled with a top surface of the first interlayer dielectric. A second interlayer dielectric is then formed to cover a top surface and each side surface of the patterned mask layer. Finally, a self-aligned contact structure is formed in the first interlayer dielectric and the second interlayer dielectric.Type: GrantFiled: June 6, 2013Date of Patent: April 14, 2015Assignee: United Microelectronics Corp.Inventors: Ching-Wen Hung, Chih-Sen Huang, Po-Chao Tsao, Shih-Fang Tzou
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Patent number: 8994184Abstract: A semiconductor device has a substrate with a plurality of conductive vias and conductive layer formed over the substrate. A semiconductor die is mounted over a carrier. The substrate is mounted to the semiconductor die opposite the carrier. An encapsulant is deposited between the substrate and carrier around the semiconductor die. A plurality of conductive TMVs is formed through the substrate and encapsulant. The conductive TMVs protrude from the encapsulant to aid with alignment of the interconnect structure. The conductive TMVs are electrically connected to the conductive layer and conductive vias. The carrier is removed and an interconnect structure is formed over a surface of the encapsulant and semiconductor die opposite the substrate. The interconnect structure is electrically connected to the conductive TMVs. A plurality of semiconductor devices can be stacked and electrically connected through the substrate, conductive TMVs, and interconnect structure.Type: GrantFiled: May 3, 2013Date of Patent: March 31, 2015Assignee: STATS ChipPAC, Ltd.Inventor: Reza A. Pagaila
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Patent number: 8987907Abstract: A semiconductor device may include a semiconductor layer including at least one unit device, a first interconnection on the semiconductor layer and electrically connected to the at least one unit device, a diffusion barrier layer on the first interconnection, an intermetallic dielectric layer on the diffusion barrier layer, a plug in a first region of the intermetallic dielectric layer and passing through the diffusion barrier layer so that a bottom surface thereof contacts the first interconnection, and a first dummy plug in a second region of the intermetallic dielectric layer, passing through the diffusion barrier layer, and disposed apart from the first interconnection so that a bottom surface of the first dummy plug does not contact the first interconnection.Type: GrantFiled: February 26, 2013Date of Patent: March 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Min-sung Kang, Se-myeong Jang
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Patent number: 8981501Abstract: A method of forming a semiconductor device is disclosed. Provided is a substrate having at least one MOS device, at least one metal interconnection and at least one MOS device formed on a first surface thereof. A first anisotropic etching process is performed to remove a portion of the substrate from a second surface of the substrate and thereby form a plurality of vias in the substrate, wherein the second surface is opposite to the first surface. A second anisotropic etching process is performed to remove another portion of the substrate from the second surface of the substrate and thereby form a cavity in the substrate, wherein the remaining vias are located below the cavity. An isotropic etching process is performed to the cavity and the remaining vias.Type: GrantFiled: April 25, 2013Date of Patent: March 17, 2015Assignee: United Microelectronics Corp.Inventors: Meng-Jia Lin, Chang-Sheng Hsu, Kuo-Hsiung Huang, Wei-Hua Fang, Shou-Wei Hsieh, Te-Yuan Wu, Chia-Huei Lin
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Patent number: 8975751Abstract: A microelectronic unit can include a substrate having front and rear surfaces and active semiconductor devices therein, the substrate having a plurality of openings arranged in a symmetric or asymmetric distribution across an area of the rear surface, first and second conductive vias connected to first and second pads exposed at the front surface, pluralities of first and second conductive interconnects extending within respective ones of the openings, and first and second conductive contacts exposed for interconnection with an external element. The plurality of first conductive interconnects can be separated from the plurality of second conductive interconnects by at least one of the plurality of openings, the at least one opening at least partially filled with an insulating material. The distribution of the openings can include at least m openings spaced apart in a first direction and n openings spaced apart in a second direction transverse to the first direction.Type: GrantFiled: April 22, 2011Date of Patent: March 10, 2015Assignee: Tessera, Inc.Inventors: Ilyas Mohammed, Belgacem Haba, Cyprian Uzoh, Piyush Savalia
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Patent number: 8975753Abstract: A three-dimensional interconnect includes a first substrate bonded to a second substrate, the first substrate including a device layer and a bulk semiconductor layer, a metal pad disposed on the second substrate, an electrically insulating layer disposed between the first and second substrates. The structure has a via-hole extending through the device layer, the bulk semiconductor layer and the electrically insulating layer to the metal pad on the second substrate. The structure has a dielectric coating on a sidewall of the via-hole, and a plasma-treated region of the metal pad disposed on the second substrate. The structure includes a via metal monolithically extending from the plasma-treated region of the metal pad through the via-hole and electrically interconnecting the device layer of the first substrate to the metal pad of the second substrate.Type: GrantFiled: March 3, 2010Date of Patent: March 10, 2015Assignee: Research Triangle InstituteInventors: Charles Kenneth Williams, Christopher A. Bower, Dean Michael Malta, Dorota Temple
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Patent number: 8970010Abstract: Embodiments of a semiconductor wafer having wafer-level die attach metallization on a back-side of the semiconductor wafer, resulting semiconductor dies, and methods of manufacturing the same are disclosed. In one embodiment, a semiconductor wafer includes a semiconductor structure and a front-side metallization that includes front-side metallization elements for a number of semiconductor die areas. The semiconductor wafer also includes vias that extend from a back-side of the semiconductor structure to the front-side metallization elements. A back-side metallization is on the back-side of the semiconductor structure and within the vias. For each via, one or more barrier layers are on a portion of the back-side metallization that is within the via and around a periphery of the via. The semiconductor wafer further includes wafer-level die attach metallization on the back-side metallization other than the portions of the back-side metallization that are within the vias and around the peripheries of the vias.Type: GrantFiled: March 15, 2013Date of Patent: March 3, 2015Assignee: Cree, Inc.Inventors: Fabian Radulescu, Helmut Hagleitner, Terry Alcorn, William T. Pulz
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Patent number: 8970040Abstract: A method for forming a contact structure includes forming a stack of alternating active layers and insulating layers. The stack includes first and second sub stacks each with active layers separated by insulating layers. The active layers of each sub stack include an upper boundary active layer. A sub stack insulating layer is formed between the first and second sub stacks with an etching time different from the etching times of the insulating layers for a given etching process. The upper boundary active layers are accessed, after which the remainder of the active layers are accessed to create a stairstep structure of landing areas on the active layers. Interlayer conductors are formed to extend to the landing areas, the interlayer conductors separated from one another by insulating material.Type: GrantFiled: September 26, 2013Date of Patent: March 3, 2015Assignee: Macronix International Co., Ltd.Inventor: Shih-Hung Chen
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Patent number: 8962473Abstract: In a method of fabricating a semiconductor device, an opening is formed inside a dielectric layer above a semiconductor substrate. The opening has a wall. At least one diffusion barrier material is then formed over the wall of the opening by at least two alternating steps, which are selected from the group consisting of a process of physical vapor deposition (PVD) and a process of atomic layer deposition (ALD). A liner layer is formed over the at least one diffusion barrier material.Type: GrantFiled: March 15, 2013Date of Patent: February 24, 2015Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Kai-Shiang Kuo, Ken-Yu Chang, Ya-Lien Lee, Hung-Wen Su
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Patent number: 8962479Abstract: A metal cap is formed on an exposed upper surface of a conductive structure that is embedded within an interconnect dielectric material. During the formation of the metal cap, metallic residues simultaneously form on an exposed upper surface of the interconnect dielectric material. A thermal nitridization process or plasma nitridation process is then performed which partially or completely converts the metallic residues into nitrided metallic residues. During the nitridization process, a surface region of the interconnect dielectric material and a surface region of the metal cap also become nitrided.Type: GrantFiled: May 10, 2013Date of Patent: February 24, 2015Assignee: International Business Machines CorporationInventors: Chih-Chao Yang, Stephan A. Cohen
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Patent number: 8952538Abstract: A semiconductor device includes: an integrated circuit having an electrode pad; a first insulating layer disposed on the integrated circuit; a redistribution layer including a plurality of wirings and disposed on the first insulating layer, at least one of the plurality of wirings being electrically coupled to the electrode pad; a second insulating layer having a opening on at least a portion of the plurality of wirings; a metal film disposed on the opening and on the second insulating layer, and electrically coupled to at least one of the plurality of wirings; and a solder bump the solder bump overhanging at least one of the plurality of wirings not electrically coupled to the metal film.Type: GrantFiled: December 22, 2010Date of Patent: February 10, 2015Assignee: Fujitsu Semiconductor LimitedInventor: Hirohisa Matsuki