Combined With Formation Of Ohmic Contact To Semiconductor Region Patents (Class 438/586)
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Patent number: 11683927Abstract: A method used in forming integrated circuitry comprises forming conductive line structures having conductive vias laterally between and spaced longitudinally along immediately-adjacent of the conductive line structures. First insulating material is formed laterally between immediately-adjacent of the conductive vias. Second insulating material is formed directly above the first insulating material and directly above the conductive vias. The second insulating material comprises silicon, carbon, nitrogen, and hydrogen. A third material is formed directly above the second insulating material. The third material and the second insulating material comprise different compositions relative one another. The third material is removed from being directly above the second insulating material and the thickness of the second insulating material is reduced thereafter. A fourth insulating material is formed directly above the second insulating material of reduced thickness.Type: GrantFiled: September 13, 2021Date of Patent: June 20, 2023Assignee: Micron Technology, Inc.Inventors: Hitoshi Ishigami, Kentaro Hyodo
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Patent number: 11677008Abstract: The present disclosure provides a method for preparing a semiconductor device with a T-shaped buried gate electrode. The method includes forming an isolation structure in a semiconductor substrate to define an active region, and forming a doped region in the active region. The method also includes etching the semiconductor substrate to form a first trench and a second trench. The first trench has a first portion extending across the doped region and a second portion extending away from the first portion, and the second trench has a third portion extending across the doped region and a fourth portion extending away from the third portion. The method further includes forming a first gate electrode in the first trench and a second gate electrode in the second trench.Type: GrantFiled: November 24, 2021Date of Patent: June 13, 2023Assignee: NANYA TECHNOLOGY CORPORATIONInventors: Ching-Chia Huang, Tseng-Fu Lu
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Patent number: 11652171Abstract: A semiconductor device comprises a first gate electrode on a substrate, a first conductive contact on the first gate electrode, an etch stop layer (ESL) on the first conductive contact, and a second conductive contact extending through the ESL. The first conductive contact has a first width. The second conductive contact has a second width, the second width being smaller than the first width. The ESL overhangs a portion of the second conductive contact. A convex bottom surface of the second conductive contact physically contacts a concave top surface of the first conductive contact.Type: GrantFiled: July 29, 2021Date of Patent: May 16, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Huei-Shan Wu, Yi-Lii Huang
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Patent number: 11563120Abstract: A method includes forming a first semiconductor fin protruding from a substrate and forming a gate stack over the first semiconductor fin. Forming the gate stack includes depositing a gate dielectric layer over the first semiconductor fin, depositing a first seed layer over the gate dielectric layer, depositing a second seed layer over the first seed layer, wherein the second seed layer has a different structure than the first seed layer, and depositing a conductive layer over the second seed layer, wherein the first seed layer, the second seed layer, and the conductive layer include the same conductive material. The method also includes forming source and drain regions adjacent the gate stack.Type: GrantFiled: October 22, 2020Date of Patent: January 24, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yu-Sheng Wang, Chi-Cheng Hung, Chia-Ching Lee, Chung-Chiang Wu, Ching-Hwanq Su
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Patent number: 11532507Abstract: In an embodiment, a method includes: forming a differential contact etch stop layer (CESL) having a first portion over a source/drain region and a second portion along a gate stack, the source/drain region being in a substrate, the gate stack being over the substrate proximate the source/drain region, a first thickness of the first portion being greater than a second thickness of the second portion; depositing a first interlayer dielectric (ILD) over the differential CESL; forming a source/drain contact opening in the first ILD; forming a contact spacer along sidewalls of the source/drain contact opening; after forming the contact spacer, extending the source/drain contact opening through the differential CESL; and forming a first source/drain contact in the extended source/drain contact opening, the first source/drain contact physically and electrically coupling the source/drain region, the contact spacer physically separating the first source/drain contact from the first ILD.Type: GrantFiled: February 8, 2021Date of Patent: December 20, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Han Chen, I-Wen Wu, Chen-Ming Lee, Fu-Kai Yang, Mei-Yun Wang, Chung-Ting Ko, Jr-Hung Li, Chi On Chui
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Patent number: 11521851Abstract: Methods and systems for depositing vanadium and/or indium layers onto a surface of a substrate and structures and devices formed using the methods are disclosed. An exemplary method includes using a cyclical deposition process, depositing a vanadium and/or indium layer onto the surface of the substrate. The cyclical deposition process can include providing a vanadium and/or indium precursor to the reaction chamber and separately providing a reactant to the reaction chamber. The cyclical deposition process may desirably be a thermal cyclical deposition process. Exemplary structures can include field effect transistor structures, such as gate all around structures. The vanadium and/or indium layers can be used, for example, as barrier layers or liners, as work function layers, as dipole shifter layers, or the like.Type: GrantFiled: January 29, 2021Date of Patent: December 6, 2022Assignee: ASM IP Holding B.V.Inventors: Eric James Shero, Michael Eugene Givens, Qi Xie, Charles Dezelah, Giuseppe Alessio Verni
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Patent number: 11522065Abstract: A method includes following steps. First and second gate electrodes are formed over a substrate, with an ILD layer between the first and second gate electrodes. A first etch operation is performed to etch the first and second gate electrodes. A sacrificial layer is formed across the etched first and second gate electrodes and the ILD layer. A second etch operation is performed to etch the sacrificial layer and the etched the first and second gate electrodes.Type: GrantFiled: March 19, 2021Date of Patent: December 6, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yi-Chen Lo, Jung-Hao Chang, Li-Te Lin, Pinyen Lin
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Patent number: 11515165Abstract: In an embodiment, a structure includes: a contact etch stop layer (CESL) over a substrate; a fin extending through the CESL; an epitaxial source/drain region in the fin, the epitaxial source/drain region extending through the CESL; a silicide contacting upper facets of the epitaxial source/drain region; a source/drain contact contacting the silicide, lower facets of the epitaxial source/drain region, and a first surface of the CESL; and an inter-layer dielectric (ILD) layer surrounding the source/drain contact, the ILD layer contacting the first surface of the CESL.Type: GrantFiled: June 11, 2020Date of Patent: November 29, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Yu-Lien Huang, Guan-Ren Wang, Ching-Feng Fu
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Patent number: 11489053Abstract: In an embodiment, a device includes: a gate electrode; a epitaxial source/drain region adjacent the gate electrode; one or more inter-layer dielectric (ILD) layers over the epitaxial source/drain region; a first source/drain contact extending through the ILD layers, the first source/drain contact connected to the epitaxial source/drain region; a contact spacer surrounding the first source/drain contact; and a void disposed between the contact spacer and the ILD layers.Type: GrantFiled: April 9, 2020Date of Patent: November 1, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chun-Han Chen, Chen-Ming Lee, Fu-Kai Yang, Mei-Yun Wang
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Patent number: 11462628Abstract: A semiconductor device, and a manufacturing method thereof. The method includes: providing a semiconductor substrate provided with a body region, a gate dielectric layer, and a field oxide layer, formed on the semiconductor substrate; forming a gate polycrystalline, the gate polycrystalline covering the gate dielectric layer and the field oxide layer and exposing at least one portion of the field oxide layer; forming a drift region in the semiconductor substrate by ion implantation using a drift region masking layer as a mask, removing the exposed portion of the field oxide layer by further using the drift region masking layer as the mask to form a first field oxide self-aligned with the gate polycrystalline; forming a source region in the body region, and forming a drain region in the drift region; forming a second field oxide on the semiconductor substrate; and forming a second field plate on the second field oxide.Type: GrantFiled: November 13, 2018Date of Patent: October 4, 2022Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.Inventors: Huajun Jin, Guipeng Sun
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Patent number: 11437490Abstract: One illustrative IC product disclosed herein includes a transistor device formed on a semiconductor substrate, the transistor device comprising a gate structure comprising an upper surface, a polish-stop sidewall spacer positioned adjacent the gate structure, wherein, at a location above an upper surface of the semiconductor substrate, when viewed in a cross-section taken through the first polish-stop sidewall spacer in a direction corresponding to a gate length direction of the transistor, an upper surface of the gate structure is substantially coplanar with an upper surface of the polish-stop sidewall spacer.Type: GrantFiled: April 8, 2020Date of Patent: September 6, 2022Assignee: GLOBALFOUNDRIES U.S. INC.Inventors: Sipeng Gu, Haiting Wang
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Patent number: 11404538Abstract: A semiconductor memory device includes; a first impurity region and a second impurity region spaced apart in a substrate, a device isolation pattern between the first impurity region and the second impurity region, a bit-line contact on the first impurity region, a storage node contact on the second impurity region and a dielectric pattern between the bit-line contact and the storage node contact. An upper part of a sidewall of the device isolation pattern has a first slope and a lower part of the sidewall of the device isolation pattern has a second slope different from the first slope.Type: GrantFiled: August 18, 2020Date of Patent: August 2, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Taejin Park, Chulkwon Park, Soyeong Kim, Eun A Kim, Hyo-Sub Kim, Sohyun Park, Sunghee Han, Yoosang Hwang
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Patent number: 11404525Abstract: A terminal of a flexible organic EL display device is formed using a third conductive member being a second metal layer exposed through an opening of a second resin layer. In the opening of the second resin layer, a protruding portion being formed using a third resin layer being a layer lower than the second resin layer and the third conductive member being the second metal layer overlap each other.Type: GrantFiled: March 1, 2018Date of Patent: August 2, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Yuki Yasuda, Katsuyuki Suga
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Patent number: 11404503Abstract: The present invention provides a display panel and a manufacturing method of the display panel. By etching a certain amount of a protective layer in a first contact region and in a second contact region, a first via hole and a second via hole expose a surface of an active layer, and a source/drain metal layer is connected to the active layer through the first via hole and the second via hole. The present invention does not use a hydrofluoric acid cleaning machine (HFC) to rinse the protective layer, so a first capacitor electrode and a second capacitor electrode are effectively prevented from being etched by hydrofluoric acid (HF). Accordingly, stable thin-film-transistor (TFT) electrical parameters are obtained.Type: GrantFiled: September 23, 2019Date of Patent: August 2, 2022Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Yutian Huang, Hui Song
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Patent number: 11384429Abstract: Embodiments of the invention provide processes to selectively form a cobalt layer on a copper surface over exposed dielectric surfaces. In one embodiment, a method for capping a copper surface on a substrate is provided which includes positioning a substrate within a processing chamber, wherein the substrate contains a contaminated copper surface and a dielectric surface, exposing the contaminated copper surface to a reducing agent while forming a copper surface during a pre-treatment process, exposing the substrate to a cobalt precursor gas to selectively form a cobalt capping layer over the copper surface while leaving exposed the dielectric surface during a vapor deposition process, and depositing a dielectric barrier layer over the cobalt capping layer and the dielectric surface.Type: GrantFiled: May 18, 2017Date of Patent: July 12, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Sang-Ho Yu, Kevin Moraes, Seshadri Ganguli, Hua Chung, See-Eng Phan
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Patent number: 11380745Abstract: A display panel includes a base layer, a first thin film transistor disposed on the base layer and including a silicon semiconductor pattern, a first control electrode is spaced apart from the silicon semiconductor pattern. A first input electrode is connected to a first side of the silicon semiconductor pattern. A first output electrode is connected to a second side of the silicon semiconductor pattern. The display panel includes a second thin film transistor. An organic light emitting diode includes a first electrode connected to the first thin film transistor, a second electrode, and an emission layer. A first insulating layer includes openings exposing the first side and the second side of the silicon semiconductor pattern, respectively. The first input electrode and the first output electrode are positioned in the openings, respectively.Type: GrantFiled: March 6, 2019Date of Patent: July 5, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yoonjee Shin, Kyunghyun Baek, Seokje Seong, Wooho Jeong, Yoon-jong Cho
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Patent number: 11309397Abstract: A method is presented for employing contact over active gate to reduce parasitic capacitance. The method includes forming high-k metal gates (HKMGs) between stacked spacers, the stacked spacers including a low-k dielectric lower portion and a sacrificial upper portion, forming a first dielectric over the HKMGs, forming first contacts to source/drain of a transistor between the HKMGs, and forming a second dielectric over the first contacts. The method further includes selectively removing the first dielectric to form second contacts to the HKMGs, selectively removing the second dielectric to form third contacts on top of the first contacts, removing the sacrificial upper portion of the stacked spacers, and depositing a third dielectric that pinches off the remaining first and second dielectrics to form air-gaps between the first contacts and the HKMGs.Type: GrantFiled: November 4, 2019Date of Patent: April 19, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: Kangguo Cheng
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Semiconductor devices having improved electrical characteristics and methods of fabricating the same
Patent number: 11282787Abstract: The semiconductor device provided comprises a substrate that includes active regions that extends in a first direction and a device isolation layer that defines the active regions, word lines that run across the active regions in a second direction that intersects the first direction, bit-line structures that intersect the active regions and the word lines and that extend in a third direction that is perpendicular to the second direction, first contacts between the bit-line structures and the active regions, spacer structures on sidewalls of the bit-line structures, and second contacts that are between adjacent bit-line structures and are connected to the active regions. Each of the spacer structures extends from the sidewalls of the bit-line structures onto a sidewall of the device isolation layer.Type: GrantFiled: May 20, 2020Date of Patent: March 22, 2022Inventors: Taejin Park, Keunnam Kim, Sohyun Park, Jin-Hwan Chun, Wooyoung Choi, Sunghee Han, Inkyoung Heo, Yoosang Hwang -
Patent number: 11239340Abstract: A semiconductor arrangement and method of formation are provided. The semiconductor arrangement comprises a conductive contact in contact with a substantially planar first top surface of a first active area, the contact between and in contact with a first alignment spacer and a second alignment spacer both having substantially vertical outer surfaces. The contact formed between the first alignment spacer and the second alignment spacer has a more desired contact shape then a contact formed between alignment spacers that do not have substantially vertical outer surfaces. The substantially planar surface of the first active area is indicative of a substantially undamaged structure of the first active area as compared to an active area that is not substantially planar. The substantially undamaged first active area has a greater contact area for the contact and a lower contact resistance as compared to a damaged first active area.Type: GrantFiled: June 8, 2020Date of Patent: February 1, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITEDInventors: Tai-I Yang, Tien-Lu Lin, Wai-Yi Lien, Chih-Hao Wang, Jiun-Peng Wu
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Patent number: 11234330Abstract: An electronic device and a method for manufacturing the same are disclosed. The method for manufacturing the electronic device includes the following steps: providing a substrate; forming a metal layer on the substrate, wherein the metal layer has a first surface; forming a first insulating layer on the first surface of the metal layer; forming a second insulating layer on the first insulating layer; etching the first insulating layer and the second insulating layer to form a contact hole, wherein the contact hole exposes a portion of the first surface; cleaning the portion of the first surface exposed by the contact hole with a solution; and forming a transparent conductive layer on the second insulating layer, wherein the transparent conductive layer electrically connects with the metal layer.Type: GrantFiled: January 21, 2021Date of Patent: January 25, 2022Assignee: INNOLUX CORPORATIONInventors: Po-Yun Hsu, Ker-Yih Kao, Chia-Ping Tseng
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Patent number: 11227796Abstract: A semiconductor structure and a process for forming a semiconductor structure. There is a back end of the line wiring layer which includes a wiring line, a multilayer cap layer and an ILD layer. A metal-filled via extends through the ILD layer and partially through the cap layer to make contact with the wiring line. There is a reliability enhancement material formed in one of the layers of the cap layer. The reliability enhancement material surrounds the metal-filled via only in the cap layer to make a bottom of the metal-filled via that contacts the wiring line be under compressive stress, wherein the compressive reliability enhancement material has different physical properties than the cap layer.Type: GrantFiled: September 18, 2019Date of Patent: January 18, 2022Assignee: ELPIS TECHNOLOGIES INC.Inventors: Lawrence A. Clevenger, Baozhen Li, Xiao H. Liu, Kirk D. Peterson
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Patent number: 11211471Abstract: The present invention discloses a metal gate process. A sacrificial nitride layer is introduced during the fabrication of metal gates. The gate height can be well controlled by introducing the sacrificial nitride layer. Further, the particle fall-on problem can be effectively solved.Type: GrantFiled: September 10, 2020Date of Patent: December 28, 2021Assignee: UNITED MICROELECTRONICS CORP.Inventors: Fu-Shou Tsai, Yong-Yi Lin, Yang-Ju Lu, Yu-Lung Shih, Ji-Min Lin, Ching-Yang Chuang, Kun-Ju Li
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Patent number: 11164782Abstract: A method of fabricating a semiconductor device includes forming a plurality of semiconductor fins upon a substrate, forming a plurality of epitaxially grown source-drain regions upon the fins, forming a plurality of device gates upon the fins, the device gates disposed between the epitaxially grown source-drain regions, forming a trench exposing at least one epitaxially grown source-drain region, masking at least a portion of the exposed epitaxially grown source-drain region, forming a gate trench exposing at least a portion of a device gate and gate spacer, forming a metallization layer between the epitaxially grown source-drain region and the device gate, selectively recessing the metallization layer, forming a conductive layer upon the metallization layer, and forming a dielectric cap above the conductive layer.Type: GrantFiled: January 7, 2020Date of Patent: November 2, 2021Assignee: International Business Machines CorporationInventors: Ruilong Xie, Balasubramanian S Pranatharthi Haran, Dechao Guo, Nicolas Loubet, Alexander Reznicek
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Patent number: 11127752Abstract: A semiconductor device includes a substrate, having cell region and high-voltage region. A memory cell is on the substrate within the cell region. The memory cell includes a memory gate structure and a selection gate structure on the substrate. A first spacer is sandwiched between or respectively on sidewalls of the memory cell structure and the selection gate structure. First high-voltage transistor is on the substrate within the high-voltage region. A first composite gate structure of the first high-voltage transistor includes a first gate structure on the substrate, an insulating layer with a predetermined thickness on the substrate in a -like structure or an L-like structure at cross-section, and a second gate structure on the insulating layer along the -like structure or the L-like structure. The selection gate structure and the second gate structure are originated from a same preliminary conductive layer.Type: GrantFiled: February 21, 2020Date of Patent: September 21, 2021Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chia-Ching Hsu, Wang Xiang, Shen-De Wang, Chun-Sung Huang
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Patent number: 11087990Abstract: A semiconductor device includes a stacked structure on a substrate. The stacked structure includes stepped regions and a central region between the stepped regions, an upper insulation layer on the stacked structure, and a capping insulation layer on the stepped regions of the stacked structure. The capping insulation layer includes a first upper end portion and a second upper end portion that are adjacent to the upper insulation layer. The upper insulation layer is between the first upper end portion and the second upper end portion. The first upper end portion and the second upper end portion extends a first height relative to the substrate that is different from a second height relative to the substrate of the second upper end portion.Type: GrantFiled: June 6, 2019Date of Patent: August 10, 2021Inventors: Chang Sun Hwang, Han Sol Seok, Hyun Ku Kang, Byoung Ho Kwon, Chung Ki Min
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Patent number: 11069814Abstract: An electronic device can include a panel; a driver circuit configured to drive the panel; and a transistor disposed in the panel, the transistor including: a gate electrode disposed on a substrate, a first insulating film disposed on the gate electrode, an active layer disposed on the first insulating film, the active layer including: a first portion of the active layer overlapping with an upper surface of the gate electrode, a second portion of the active layer extending from the first portion, being disposed along a side surface of the gate electrode and including a channel area, and a third portion of the active layer extending from the second portion of the active layer, the third portion of the active layer being disposed on a portion of the first insulating film that does not overlap with the gate electrode, a second insulating film disposed on the active layer, a first electrode disposed on the second insulating film, the first electrode being electrically connected to the first portion of the active lType: GrantFiled: September 18, 2019Date of Patent: July 20, 2021Assignee: LG DISPLAY CO., LTD.Inventors: SangYun Sung, SeHee Park, Jiyong Noh, InTak Cho, PilSang Yun
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Patent number: 11069694Abstract: A semiconductor structure and a method for forming same are provided. In one form a method includes: providing a substrate with a discrete first gate laminated structure formed on the substrate; forming, on a portion of the substrate exposed from the first gate laminated structure, a unit dielectric layer covering a portion of a side wall of the first gate laminated structure, where the first gate laminated structure and the unit dielectric layer enclose a unit groove; forming an isolation spacer layer on a side wall of the unit groove, where the isolation spacer layer is in contact with the unit dielectric layer; forming a metal layer conformally covering the isolation spacer layer, the first gate laminated structure, and the unit dielectric layer; and annealing the metal layer to form a metal silicide layer.Type: GrantFiled: March 13, 2020Date of Patent: July 20, 2021Assignees: Semiconductor Manufacturing (Shanghai) International Corporation, Semiconductor Manufacturing (Beijing) International CorporationInventors: Han Liang, Wang Hai Ying
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Patent number: 10998335Abstract: A semiconductor device according to an embodiment includes a semiconductor substrate, a plurality of conductive layers extending in a first direction on the semiconductor substrate, and laminated in a third direction perpendicular to the first direction and a second direction at intervals in the second direction perpendicular to the first direction, and a passivation film which has several layers provided above the plurality of conductive layers. The passivation film has a first nitride film provided above the plurality of conductive layers, and a second nitride film provided on the first nitride film, and the second nitride film has the concave and convex shape which is repeated along the second direction.Type: GrantFiled: September 9, 2019Date of Patent: May 4, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventor: Hiroshi Noguchi
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Patent number: 10998322Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes a stack structure on the substrate. The stack structure includes a first insulating material and a second insulating material that is on the first insulating material. The semiconductor device includes a spacer that extends from a sidewall of the first insulating material of the stack structure to a portion of a sidewall of the second insulating material of the stack structure. Moreover, the semiconductor device includes a conductive line that is on the spacer. Methods of forming semiconductor devices are also provided.Type: GrantFiled: March 7, 2019Date of Patent: May 4, 2021Inventors: Daeik Kim, Bong-Soo Kim, Jemin Park, Taejin Park, Yoosang Hwang
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Patent number: 10998187Abstract: Methods are provided for conducting a deposition on a semiconductor substrate by selectively depositing a material on the substrate. The substrate has a plurality of substrate materials, each with a different nucleation delay corresponding to the material deposited thereon. Specifically, the nucleation delay associated with a first substrate material on which deposition is intended is less than the nucleation delay associated with a second substrate material on which deposition is not intended according to a nucleation delay differential, which degrades as deposition proceeds. A portion of the deposited material is etched to reestablish the nucleation delay differential between the first and the second substrate materials. The material is further selectively deposited on the substrate.Type: GrantFiled: December 13, 2019Date of Patent: May 4, 2021Assignee: LAM RESEARCH CORPORATIONInventors: Kapu Sirish Reddy, Meliha Gozde Rainville, Nagraj Shankar, Dennis M. Hausmann, David Charles Smith, Karthik Sivaramakrishnan, David W. Porter
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Patent number: 10943909Abstract: A method of forming a semiconductor memory device includes the following steps. First of all, a substrate is provided, and a plurality of gates is formed in the substrate, along a first direction. Next, a semiconductor layer is formed on the substrate, covering the gates, and a plug is then in the semiconductor layer, between two of the gates. Then, a deposition process is performed to from a stacked structure on the semiconductor layer. Finally, the stacked structure is patterned to form a plurality of bit lines, with one of the bit lines directly in contact with the plug.Type: GrantFiled: June 7, 2018Date of Patent: March 9, 2021Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Yi-Wei Chen, Hsu-Yang Wang, Chun-Chieh Chiu, Shih-Fang Tzou
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Patent number: 10872811Abstract: Provided is a memory device including a substrate, a plurality of contacts, and a plurality of air gaps. The substrate has a plurality of active areas. The contacts are respectively disposed on ends of the active areas. The air gaps respectively surround the sidewalls of the contacts.Type: GrantFiled: March 27, 2019Date of Patent: December 22, 2020Assignee: Winbond Electronics Corp.Inventor: Huang-Nan Chen
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Patent number: 10861923Abstract: A display device includes a substrate in which a first area, a second area and a bending area between the first and second areas are defined, a plurality of pixels disposed above the substrate in the first area, a plurality of conductive layers extending to and intersecting the bending area, a protective film covering the conductive layers and disposed in the bending area, a first portion of the first area adjacent to the bending area, and a second portion of the second area adjacent to the bending area. The display device further includes a plurality of tag layers disposed in the first and second portions and connected to both ends of the conductive layers, wherein the bending area is interposed between the plurality of tag layers. The tag layers are exposed to an outside of the display device by exposure holes defined in the protective film.Type: GrantFiled: May 30, 2018Date of Patent: December 8, 2020Assignee: Samsung Display Co., Ltd.Inventors: Horyun Chung, Sejoong Shin, Hyojin Kim, Taehyun Sung, Changhan Lee
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Patent number: 10832962Abstract: A method for manufacturing a semiconductor device includes forming a plurality of gate structures on a semiconductor fin, and forming a plurality of source/drain regions adjacent the gate structures. A sacrificial spacer layer is deposited on the source/drain regions, and part of the sacrificial spacer layer is removed to expose portions of the source/drain regions. A plurality of source/drain contacts are formed on the source/drain regions, wherein remaining portions of the sacrificial spacer layer are positioned between the source/drain contacts and adjacent ones of the gate structures. The method also includes removing the remaining portions of the sacrificial spacer layer to form a plurality of spaces between the source/drain contacts and the adjacent ones of the gate structures. The removal of the remaining portions of the sacrificial spacer layer is performed using a water-based etch. A dielectric material including a plurality of air gaps is deposited in the spaces.Type: GrantFiled: May 22, 2019Date of Patent: November 10, 2020Assignee: International Business Machines CorporationInventors: Kangguo Cheng, Peng Xu, ChoongHyun Lee
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Patent number: 10825818Abstract: A semiconductor device and method of forming the same, the semiconductor device includes bit lines, a transistor, a dielectric layer, plugs and a capping layer. The bit lines are disposed on a substrate within a cell region thereof, and the transistor is disposed on the substrate within a periphery region. The plugs are disposed in the dielectric layer, within the cell region and the periphery region respectively. The capping layer is disposed on the dielectric layer, and the capping layer disposed within the periphery region is between those plugs. That is, a portion of the dielectric layer is therefore between the capping layer and the transistor.Type: GrantFiled: December 6, 2018Date of Patent: November 3, 2020Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.Inventors: Feng-Yi Chang, Fu-Che Lee, Chieh-Te Chen
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Patent number: 10699951Abstract: According to an embodiment of the present invention, self-aligned gate cap, comprises a gate located on a substrate; a gate cap surrounding a side of the gate; a contact region self-aligned to the gate; and a low dielectric constant oxide having a dielectric constant of less than 3.9 located on top of the gate. According to an embodiment of the present invention, a method of forming a self-aligned contact comprises removing at least a portion of an interlayer dielectric layer to expose a top surface of a gate cap located on a substrate; recessing the gate cap to form a recessed area; depositing a low dielectric constant oxide having a dielectric constant of less than 3.9 in the recessed area; and polishing a surface of the low dielectric constant oxide to expose a contact area.Type: GrantFiled: November 29, 2017Date of Patent: June 30, 2020Assignee: ELPIS TECHNOLOGIES INC.Inventors: Balasubramanian Pranatharthiharan, Injo Ok, Charan V. V. S. Surisetty
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Patent number: 10680078Abstract: A semiconductor arrangement and method of formation are provided. The semiconductor arrangement comprises a conductive contact in contact with a substantially planar first top surface of a first active area, the contact between and in contact with a first alignment spacer and a second alignment spacer both having substantially vertical outer surfaces. The contact formed between the first alignment spacer and the second alignment spacer has a more desired contact shape then a contact formed between alignment spacers that do not have substantially vertical outer surfaces. The substantially planar surface of the first active area is indicative of a substantially undamaged structure of the first active area as compared to an active area that is not substantially planar. The substantially undamaged first active area has a greater contact area for the contact and a lower contact resistance as compared to a damaged first active area.Type: GrantFiled: January 7, 2019Date of Patent: June 9, 2020Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Tai-I Yang, Tien-Lu Lin, Wai-Yi Lien, Chih-Hao Wang, Jiun-Peng Wu
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Patent number: 10651091Abstract: A fin structure is on a substrate. The fin structure includes an epitaxial region having an upper surface and an under-surface. A contact structure on the epitaxial region includes an upper contact portion and a lower contact portion. The upper contact portion includes a metal layer over the upper surface and a barrier layer over the metal layer. The lower contact portion includes a metal-insulator-semiconductor (MIS) contact along the under-surface. The MIS contact includes a dielectric layer on the under-surface and the barrier layer on the dielectric layer.Type: GrantFiled: April 22, 2019Date of Patent: May 12, 2020Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Sung-Li Wang, Neng-Kuo Chen, Ding-Kang Shih, Meng-Chun Chang, Yi-An Lin, Gin-Chen Huang, Chen-Feng Hsu, Hau-Yu Lin, Chih-Hsin Ko, Sey-Ping Sun, Clement Hsingjen Wann
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Patent number: 10644025Abstract: A method of processing a substrate by omitting a photolithographic process is disclosed. The method includes forming at least one layer on a stepped structure having an upper surface, a lower surface, and a side surface that connects the upper surface to the lower surface, selectively densifying portions of the at least one layer respectively on the upper surface and the lower surface via asymmetric plasma application, and performing an isotropic etching process on the at least one layer. During the isotropic etching process, the portion of the at least one layer formed on the upper surface is separated from the portion of the at least one layer formed on the lower surface.Type: GrantFiled: September 28, 2018Date of Patent: May 5, 2020Assignee: ASM IP Holding B.V.Inventors: Seung Ju Chun, Yong Min Yoo, Jong Wan Choi, Young Jae Kim, Sun Ja Kim, Wan Gyu Lim, Yoon Ki Min, Hae Jin Lee, Tae Hee Yoo
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Patent number: 10629602Abstract: Structures for a static random access memory (SRAM) bitcell and methods for forming a SRAM bitcell. The SRAM includes a storage element with a first pull-up (PU) vertical-transport field-effect transistor (VTFET) having a first bottom source/drain region and a fin projecting from the first bottom source/drain region, and a second pull-up (PU) VTFET with a second bottom source/drain region and a fin projecting from the second bottom source/drain region. The fin of the first PU VTFET is arranged over a first active region in which the first bottom source/drain region is centrally arranged, and the fin of the second PU VTFET is arranged over a second active region in which the second bottom source/drain region is centrally arranged. The second source/drain region is aligned with the first bottom source/drain region. A read port may be connected with the storage element, and may also be formed using VTFETs.Type: GrantFiled: May 18, 2018Date of Patent: April 21, 2020Assignee: GLOBALFOUNDRIES INC.Inventors: Randy W. Mann, Bipul C. Paul
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Patent number: 10622375Abstract: A method of processing a substrate by omitting a photolithographic process is disclosed. The method includes forming at least one layer on a stepped structure having an upper surface, a lower surface, and a side surface that connects the upper surface to the lower surface, selectively densifying portions of the at least one layer respectively on the upper surface and the lower surface via asymmetric plasma application, and performing an isotropic etching process on the at least one layer. During the isotropic etching process, the portion of the at least one layer formed on the upper surface is separated from the portion of the at least one layer formed on the lower surface.Type: GrantFiled: November 13, 2018Date of Patent: April 14, 2020Assignee: ASM IP Holding B.V.Inventors: Seung Ju Chun, Yong Min Yoo, Jong Wan Choi, Young Jae Kim, Sun Ja Kim, Wan Gyu Lim, Yoon Ki Min, Hae Jin Lee, Tae Hee Yoo
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Patent number: 10600791Abstract: A semiconductor memory device includes a word line buried in an upper portion of a substrate and extending in a first direction, and a word line contact plug connected to the word line. An end portion of the word line includes a contact surface exposed in the first direction, and the word line contact plug is connected to the contact surface.Type: GrantFiled: September 7, 2018Date of Patent: March 24, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Wan Kim, Keunnam Kim, Juik Lee
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Patent number: 10586769Abstract: A technique relates to fabricating a semiconductor device. A contact trench is formed in an inter-level dielectric layer. The contact trench creates an exposed portion of a semiconductor substrate through the inter-level dielectric layer. A gate stack is on the semiconductor substrate, and the inter-level dielectric layer is adjacent to the gate stack and the semiconductor substrate. A source/drain region is formed in the contact trench such that the source/drain region is on the exposed portion of the semiconductor substrate. Tin is introduced in the source/drain region to form an alloyed layer on top of the source/drain region, and the alloyed layer includes the tin and a source/drain material of the source/drain region. A trench layer is formed in the contact trench such that the trench layer is on top of the alloyed layer. A metallic liner layer is formed on the trench layer and the inter-level dielectric layer.Type: GrantFiled: December 20, 2018Date of Patent: March 10, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Oleg Gluschenkov, Jiseok Kim, Zuoguang Liu, Shogo Mochizuki, Hiroaki Niimi
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Patent number: 10580733Abstract: Provided is an integrated circuit which includes: a plurality of conductive lines extending in a first horizontal direction on a plane separate from a gate line, and including first and second conductive lines; a source/drain contact having a bottom surface connected to a source/drain region, and including a lower source/drain contact and an upper source/drain contact which are connected to each other in a vertical direction; and a gate contact having a bottom surface connected to the gate line, and extending in the vertical direction, in which the upper source/drain contact is placed below the first conductive line, and the gate contact is placed below the second conductive line. A top surface of the lower source/drain contact may be larger than a bottom surface of the upper source/drain contact.Type: GrantFiled: March 1, 2018Date of Patent: March 3, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Tae-hyung Kim, Jung-ho Do, Dae-young Moon, Sang-yeop Baeck, Jae-hyun Lim, Jae-seung Choi, Sang-shin Han
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Patent number: 10559461Abstract: Methods are provided for conducting a deposition on a semiconductor substrate by selectively depositing a material on the substrate. The substrate has a plurality of substrate materials, each with a different nucleation delay corresponding to the material deposited thereon. Specifically, the nucleation delay associated with a first substrate material on which deposition is intended is less than the nucleation delay associated with a second substrate material on which deposition is not intended according to a nucleation delay differential, which degrades as deposition proceeds. A portion of the deposited material is etched to reestablish the nucleation delay differential between the first and the second substrate materials. The material is further selectively deposited on the substrate.Type: GrantFiled: April 28, 2017Date of Patent: February 11, 2020Assignee: LAM RESEARCH CORPORATIONInventors: Kapu Sirish Reddy, Meliha Gozde Rainville, Nagraj Shankar, Dennis M. Hausmann, David Charles Smith, Karthik Sivaramakrishnan, David W. Porter
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Patent number: 10546854Abstract: One illustrative method disclosed herein includes, among other things, forming a source/drain contact structure between two spaced-apart transistor gate structures, forming a non-uniform thickness layer of material on the upper surface of the gate cap layers and on the upper surface of the source/drain contact structure, wherein the non-uniform thickness layer of material is thicker above the gate cap layers than it is above the source/drain contact structure, forming an opening in the non-uniform thickness layer of material so as to expose at least a portion of the source/drain contact structure, and forming a V0 via that is conductively coupled to the exposed portion of the source/drain contact structure, the V0 via being at least partially positioned in the opening in the non-uniform thickness layer of material.Type: GrantFiled: June 5, 2015Date of Patent: January 28, 2020Assignee: GLOBALFOUNDRIES Inc.Inventors: Ruilong Xie, Xunyuan Zhang
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Patent number: 10535603Abstract: A method includes depositing a dielectric structure on a first conductive structure, etching the dielectric structure to form a via opening, etching the dielectric structure to form a trench over the via opening, depositing a first protective layer on a bottom surface of the trench, filling the trench and the via opening with a second conductive structure, and removing the first protective layer to form an air gap between the second conductive structure and the dielectric structure.Type: GrantFiled: February 13, 2018Date of Patent: January 14, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Che-Cheng Chang, Chih-Han Lin
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Patent number: 10497793Abstract: A method for manufacturing a semiconductor structure includes forming a first dielectric layer on a gate structure and a source drain structure. A recess is formed at least partially in the first dielectric layer. A protection layer is formed at least on a sidewall of the recess. The recess is deepened to expose the source drain structure. A bottom conductor is formed in the recess and is electrically connected to the source drain structure. The protection layer is removed to form a gap between the bottom conductor and the sidewall of the recess.Type: GrantFiled: November 30, 2018Date of Patent: December 3, 2019Assignee: Taiwan Seminconductor Manufacturing Company LimitedInventors: Che-Cheng Chang, Chih-Han Lin, Horng-Huei Tseng
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Patent number: 10490566Abstract: A memory device includes a cell region and a peripheral circuit region adjacent the cell region. A plurality of gate electrode layers and insulating layers are stacked on the substrate in the cell region, and a plurality of circuit devices are in the peripheral circuit region. A first interlayer insulating layer is on the substrate in the peripheral circuit region and covers the plurality of circuit devices, and a second interlayer insulating layer is on the substrate in the cell region and the peripheral circuit region. A blocking layer is on the plurality of circuit devices between the first and second interlayer insulating layers. The blocking layer is on an upper surface, of the first interlayer insulating layer, and a side surface of the blocking layer is covered by the second interlayer insulating layer.Type: GrantFiled: February 12, 2016Date of Patent: November 26, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won Seok Jung, Brad H. Lee, Sang Woo Jin
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Patent number: 10396084Abstract: Active regions for planar transistor architectures may be patterned in one lateral direction, i.e., the width direction, on the basis of a single lithography process, followed by deposition and etch processes, thereby providing multiple width dimensions and multiple spaces or pitches with reduced process variability due to the avoidance of overlay errors typically associated with conventional approaches when patterning the width dimensions and spaces on the basis of a sequence of sophisticated lithography processes. Consequently, increased packing density, enhanced performance and reduced manufacturing costs may be achieved on the basis of process techniques as disclosed herein.Type: GrantFiled: April 4, 2018Date of Patent: August 27, 2019Assignee: GLOBALFOUNDRIES Inc.Inventors: Elliot John Smith, Nigel Chan, Nilesh Kenkare, Hongsik Yoon