Tapered Via Holes (epo) Patents (Class 257/E21.578)
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Patent number: 12243805Abstract: An integrated circuit (IC) with through-circuit vias (TCVs) and methods of forming the same are disclosed. The IC includes a semiconductor device, first and second interconnect structures disposed on first and second surfaces of the semiconductor device, respectively, first and second inter-layer dielectric (ILD) layers disposed on front and back surfaces of the substrate, respectively, and a TCV disposed within the first and second interconnect structures, the first and second ILD layers, and the substrate. The TCV is spaced apart from the semiconductor device by a portion of the substrate and portions of the first and second ILD layers. A first end of the TCV, disposed over the front surface of the substrate, is connected to a conductive line of the first interconnect structure and a second end of the TCV, disposed over the back surface of the substrate, is connected to a conductive line of the second interconnect structure.Type: GrantFiled: July 29, 2022Date of Patent: March 4, 2025Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Jian-Hong Lin, Hsin-Chun Chang, Ming-Hong Hsieh, Ming-Yih Wang, Yinlung Lu
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Patent number: 12217962Abstract: A semiconductor manufacturing system includes a calculation unit that calculates an inclination degree of an incidence direction of an etchant in an etching device according to a worn state of a part of the etching device. A correction unit corrects a second exposure pattern so that an edge position in the second exposure pattern including an edge is shifted from a first exposure pattern according to the calculated inclination degree. An exposure device exposes a second resist film formed on the substrate from which a first resist pattern is removed with the second exposure pattern. A development device develops the second resist film and forms a second resist pattern on the substrate. The etching device performs etching processing on the substrate by using the second resist pattern as a mask.Type: GrantFiled: August 27, 2021Date of Patent: February 4, 2025Assignee: KIOXIA CORPORATIONInventor: Shingo Honda
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Patent number: 12002748Abstract: A contact window structure, a metal plug and a forming method thereof, a method of forming the contact window structure and a semiconductor structure are provided. In the method of forming the contact window, an annular pad is formed on a surface of a target layer. A central via, from which partial surface of the target layer is exposed, is formed in the middle part of the annular pad. A dielectric layer covering a substrate, the target layer and the annular pad is formed. The dielectric layer is etched to form an etch hole connected to the central via in the dielectric layer. The annular pad is removed along the etch hole and the central via to enlarge a size of the central via, so as to form the contact window structure by the etch hole and the central via with the enlarged size.Type: GrantFiled: August 13, 2021Date of Patent: June 4, 2024Assignee: Changxin Memory Technologies, Inc.Inventors: Jie Liu, Ping-Heng Wu, Zhan Ying
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Patent number: 12002743Abstract: An electronic carrier and a method of manufacturing an electronic carrier are provided. The electronic carrier includes a first interconnection structure and a second interconnection structure. The first interconnection structure includes a first patterned conductive layer having a first pattern density. The second interconnection structure is laminated to the first interconnection structure and includes a second patterned conductive layer having a second pattern density higher than the first pattern density. The first interconnection structure is electrically coupled to the second interconnection structure through a first non-soldering joint between and outside of the first interconnection structure and the second interconnection structure.Type: GrantFiled: August 13, 2021Date of Patent: June 4, 2024Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: You-Lung Yen, Bernd Karl Appelt
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Patent number: 11948835Abstract: A device comprises a first metal structure, a dielectric structure, a dielectric residue, and a second metal structure. The dielectric structure is over the first metal structure. The dielectric structure has a stepped sidewall structure. The stepped sidewall structure comprises a lower sidewall and an upper sidewall laterally set back from the lower sidewall. The dielectric residue is embedded in a recessed region in the lower sidewall of the stepped sidewall structure of the dielectric structure. The second metal structure extends through the dielectric structure to the first metal structure.Type: GrantFiled: April 14, 2021Date of Patent: April 2, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Che-Cheng Chang, Chih-Han Lin
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Patent number: 11854975Abstract: A three-dimensional (3D) semiconductor device includes a stack structure including first and second stacks stacked on a substrate. Each of the first and second stacks includes a first electrode and a second electrode on the first electrode. A sidewall of the second electrode of the first stack is horizontally spaced apart from a sidewall of the second electrode of the second stack by a first distance. A sidewall of the first electrode is horizontally spaced apart from the sidewall of the second electrode by a second distance in each of the first and second stacks. The second distance is smaller than a half of the first distance.Type: GrantFiled: August 27, 2021Date of Patent: December 26, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Hun Lee, Seokjung Yun, Chang-Sup Lee, Seong Soon Cho, Jeehoon Han
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Patent number: 11776844Abstract: The embodiments herein relate to contact via structures of semiconductor devices and methods of forming the same. A semiconductor device is provided. The semiconductor device includes a substrate, a conductive feature over the substrate, and a contact via structure over and electrically coupling to the conductive feature. The contact via structure has a concave profile.Type: GrantFiled: March 24, 2021Date of Patent: October 3, 2023Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Yung Fu Chong, Rui Tze Toh, Fangyue Liu
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Patent number: 11594633Abstract: The present disclosure relates to a semiconductor device including a substrate and first and second spacers on the substrate. The semiconductor device also includes a gate stack between the first and second spacers. The gate stack includes a gate dielectric layer having a first portion formed on the substrate and a second portion formed on the first and second spacers; an internal gate formed on the first and second portions of the gate dielectric layer; a ferroelectric dielectric layer formed on the internal gate and in contact with the gate dielectric layer; and a gate electrode on the ferroelectric dielectric layer.Type: GrantFiled: May 24, 2021Date of Patent: February 28, 2023Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Cheng-Ming Lin, Sai-Hooi Yeong, Ziwei Fang, Chi On Chui, Huang-Lin Chao
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Patent number: 11588106Abstract: In some embodiments, the present disclosure relates to a method of forming an integrated chip that includes depositing a phase change material layer over a bottom electrode. The phase change material is configured to change its degree of crystallinity upon temperature changes. A top electrode layer is deposited over the phase change material layer, and a hard mask layer is deposited over the top electrode layer. The top electrode layer and the hard mask layer are patterned to remove outer portions of the top electrode layer and to expose outer portions of the phase change material layer. An isotropic etch is performed to remove portions of the phase change material layer that are uncovered by the top electrode layer and the hard mask layer. The isotropic etch removes the portions of the phase change material layer faster than portions of the top electrode layer and the hard mask layer.Type: GrantFiled: October 27, 2020Date of Patent: February 21, 2023Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yu Chao Lin, Jui-Ming Chen, Shao-Ming Yu, Tung Ying Lee, Yu-Sheng Chen
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Patent number: 11532560Abstract: In a semiconductor process, a seamless tungsten plug is formed in an inter-layer dielectric by forming the inter-layer dielectric from multiple oxide layers having different wet etch rates, from lowest wet-etch rate for the lowest layer to highest wet-etch rate for the highest layer, forming a hole or trench in the inter-layer dielectric using a dry etch process, reconfiguring the hole or trench to have sloped side walls by performing a wet etch step, and filling the hole or trench with tungsten and etching back the tungsten to form a seamless tungsten plug.Type: GrantFiled: November 3, 2014Date of Patent: December 20, 2022Assignee: Texas Instruments IncorporatedInventors: Yunlong Liu, Yufei Xiong, Hong Yang
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Patent number: 11114818Abstract: A photonic chip includes an optical layer bonded, at a bonding interface, to an interconnection layer, the thickness of the optical layer being smaller than 15 ?m, a primary via that extends through the interconnection layer solely between a lower face and the bonding interface, an electrical terminal chosen from the group consisting of an electrical contact embedded in the interior of the optical layer and of an electrical track produced on an upper face, a second via that extends the primary via into the interior of the optical layer in order to electrically connect the primary via to the electrical terminal, this secondary via extending in the interior of the optical layer from the bonding interface to the electrical terminal, the maximum diameter of this secondary via being smaller than 3 ?m.Type: GrantFiled: June 6, 2019Date of Patent: September 7, 2021Assignee: Commissariat a l'energie atomique et aux energies alternativesInventors: Sylvie Menezo, Severine Cheramy
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Patent number: 11081522Abstract: A semiconductor device includes a plurality of first selection lines extending in a first direction and disposed side by side in a second direction, the second direction intersecting with the first direction, a first metal wiring line formed in a layer above the first selection line layer, a first through wiring line penetrating an insulating layer formed on the first selection line layer, and coupling a first line of the plurality of first selection lines and the first metal wiring line to each other, a second through wiring line penetrating the first selection line layer, the second through wiring line having one end coupled to the first metal wiring line, a first storage element having a first terminal, and a second terminal coupled to the first line, and a first drive circuit coupled to another end of the second through wiring line, and drives the plurality of first selection lines.Type: GrantFiled: April 17, 2018Date of Patent: August 3, 2021Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Haruhiko Terada
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Patent number: 10950478Abstract: A method includes forming a first polymer layer to cover a metal pad of a wafer, and patterning the first polymer layer to form a first opening. A first sidewall of the first polymer layer exposed to the first opening has a first tilt angle where the first sidewall is in contact with the metal pad. The method further includes forming a metal pillar in the first opening, sawing the wafer to generate a device die, encapsulating the device die in an encapsulating material, performing a planarization to reveal the metal pillar, forming a second polymer layer over the encapsulating material and the device die, and patterning the second polymer layer to form a second opening. The metal pillar is exposed through the second opening. A second sidewall of the second polymer layer exposed to the second opening has a second tilt angle greater than the first tilt angle.Type: GrantFiled: May 13, 2019Date of Patent: March 16, 2021Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hsi-Kuei Cheng, Ching Fu Chang, Chih-Kang Han, Hsin-Chieh Huang
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Patent number: 10847359Abstract: The present disclosure provides a method for forming an integrated circuit (IC) structure. The method includes providing a metal gate (MG), an etch stop layer (ESL) formed on the MG, and a dielectric layer formed on the ESL. The method further includes etching the ESL and the dielectric layer to form a trench. A surface of the MG exposed in the trench is oxidized to form a first oxide layer on the MG. The method further includes removing the first oxide layer using a H3PO4 solution.Type: GrantFiled: April 20, 2017Date of Patent: November 24, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shich-Chang Suen, Li-Chieh Wu, Chi-Jen Liu, He Hui Peng, Liang-Guang Chen, Yung-Chung Chen
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Patent number: 10784151Abstract: The present disclosure provides a method for forming an interconnect structure, including forming an Nth metal line principally extending in a first direction, forming a sacrificial bilayer over the Nth metal line, forming a dielectric layer over the sacrificial bilayer, removing a portion of the sacrificial bilayer, forming a conductive post in the sacrificial bilayer, wherein the conductive post having a top pattern coplanar with a top surface of the sacrificial bilayer and a bottom pattern in contact with a top surface of the Nth metal line, and forming an Nth metal via over the sacrificial bilayer.Type: GrantFiled: September 11, 2018Date of Patent: September 22, 2020Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Hsiang-Wei Liu, Wei-Chen Chu, Chia-Tien Wu, Tai-I Yang
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Patent number: 10615194Abstract: The present disclosure relates to an array substrate, a manufacturing method thereof and a liquid crystal display (LCD). The manufacturing method of array substrates includes forming a first metal layer on a substrate, etching the first metal layer via a first mask to form a gate and a common electrode, forming a gate insulation layer, an active layer, and a second metal layer on the first metal layer in sequence, etching the second metal layer and the active layer via a second mask to form a source, a drain, and a pixel electrode. As such, the manufacturing process of the array substrate may only require two masks, the productivity may be improved, and the costs may be reduced.Type: GrantFiled: July 18, 2017Date of Patent: April 7, 2020Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., LtdInventor: Qiming Gan
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Patent number: 10269624Abstract: An embodiment method includes patterning an opening through a dielectric layer, depositing an adhesion layer along sidewalls and a bottom surface of the opening, depositing a first mask layer in the opening over the adhesion layer, etching back the first mask layer below a top surface of the dielectric layer, and widening an upper portion of the opening after etching back the first mask layer. The first mask layer masks a bottom portion of the opening while widening the upper portion of the opening. The method further includes removing the first mask layer after widening the upper portion of the opening and after removing the first mask layer, forming a contact in the opening by depositing a conductive material in the opening over the adhesion layer.Type: GrantFiled: November 1, 2017Date of Patent: April 23, 2019Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Xi-Zong Chen, Y. H. Kuo, Cha-Hsin Chao, Yi-Wei Chiu, Li-Te Hsu
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Patent number: 10170472Abstract: A semiconductor device includes a substrate first through fourth active fins on the substrate, extending in a first direction, and spaced apart from one another in a second direction that intersects the first direction, a first gate electrode extending in the second direction and on the first active fin to overlap with the first active fin but not with the second through fourth active fins, a second gate electrode extending in the second direction and on the second and third active fins to overlap with the second active fin but not with the first and fourth active fins, a first contact on the first gate electrode and connected to a first wordline, and a second contact on the second gate electrode and connected to a second wordline. The first through third active fins are between the first and second contacts. Related devices are also discussed.Type: GrantFiled: June 26, 2017Date of Patent: January 1, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Lak Gyo Jeong, Yong Rae Cho, Kyo Wook Lee, Hee Bum Hong
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Patent number: 10163778Abstract: A structure and a formation method of a semiconductor device structure are provided. The semiconductor device structure includes a semiconductor substrate and a conductive feature over the semiconductor substrate. The semiconductor device structure also includes a dielectric layer over the conductive feature and the semiconductor substrate. The semiconductor device structure further includes a conductive via surrounded by the dielectric layer and electrically connected to the conductive feature. The conductive via has a lower end and an upper end larger than the lower end, and the conductive via has a side surface curved inward.Type: GrantFiled: August 14, 2014Date of Patent: December 25, 2018Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventor: Tai-Yen Peng
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Patent number: 10090392Abstract: A semiconductor device includes a metal oxide semiconductor device disposed over a substrate and an interconnect plug. The metal oxide semiconductor device includes a gate structure located on the substrate and a raised source/drain region disposed adjacent to the gate structure. The raised source/drain region includes a top surface above a surface of the substrate by a distance. The interconnect plug connects to the raised source/drain region. The interconnect plug includes a doped region contacting the top surface of the raised source/drain region, a metal silicide region located on the doped region, and a metal region located on the metal silicide region.Type: GrantFiled: January 17, 2014Date of Patent: October 2, 2018Assignee: Taiwan Semiconductor Manufacturing Company Ltd.Inventors: I-Chih Chen, Chih-Mu Huang, Ling-Sung Wang, Ying-Hao Chen, Wen-Chang Kuo, Jung-Chi Jeng
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Patent number: 10090320Abstract: A semiconductor device according to an embodiment, includes a stacked body, a plurality of first terraces, a second terrace, a plurality of interconnects, a plurality of conductive bodies. The stacked body includes a plurality of electrode layers. The stacked body includes a stairstep portion at an end portion of the stacked body. The plurality of first terraces are provided in the stairstep portion. The second terrace is provided in the stairstep portion. The plurality of interconnects are provided from the second terrace to the plurality of first terraces. The plurality of interconnects contact one of the plurality of electrode layers at the stairstep portion. The plurality of conductive bodies are provided above the second terrace. The plurality of conductive bodies extend in a stacking direction of the stacked body. The conductive bodies contact the interconnects above the second terrace.Type: GrantFiled: September 16, 2016Date of Patent: October 2, 2018Assignee: Toshiba Memory CorporationInventors: Jun Nogami, Gaku Sudo
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Patent number: 9939586Abstract: A photodetector includes a germanium layer evanescently coupled to a ring resonator. The ring resonator increases the interaction length between light guided by the ring resonator and the germanium layer without increasing the size of the photodetector, thereby keeping the photodetector's dark current at a low level. The germanium layer absorbs the guided light and converts the absorbed light into electrical signals for detection. The increased interaction length in the resonator allows efficient transfer of light from the resonator to the germanium layer via evanescently coupling. In addition, the internal and external quality factors (Q) of the ring resonator can be matched to achieve (nearly) full absorption of light in the germanium with high quantum efficiency.Type: GrantFiled: January 30, 2017Date of Patent: April 10, 2018Assignee: Massachusetts Institute of TechnologyInventors: Erman Timurdogan, Michael R. Watts, Zhan Su, Ehsan Shah Hosseini, Jie Sun
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Patent number: 9929716Abstract: There are provided an acoustic resonator and a method of manufacturing the same. The acoustic resonator includes a resonance part including a first electrode, a second electrode, and a piezoelectric layer disposed between the first and second electrodes. The acoustic resonator also includes a substrate disposed below the resonance part and including a via hole penetrating through the substrate and a connection conductor disposed in the via hole and connected to at least one of the first and second electrodes.Type: GrantFiled: November 4, 2015Date of Patent: March 27, 2018Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Moon Chul Lee, Duck Hwan Kim, Yeong Gyu Lee, Chul Soo Kim, Jie Ai Yu, Sang Uk Son
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Patent number: 9899304Abstract: A wiring substrate includes a first wiring layer that is an uppermost wiring layer, a protective insulation layer that covers the first wiring layer, and a first through hole that extends through the protective insulation layer in a thickness-wise direction to partially expose an upper surface of the first wiring layer. The first through hole includes a recess defined in an upper surface of the protective insulation layer by a curved wall surface and an opening that extends from the upper surface of the first wiring layer to a bottom of the recess and is in communication with the recess. The opening is smaller than the recess in a plan view.Type: GrantFiled: December 16, 2016Date of Patent: February 20, 2018Assignee: Shinko Electric Industries Co., Ltd.Inventors: Kei Imafuji, Keiji Yoshizawa, Hirokazu Yoshino, Kenta Uchiyama
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Patent number: 9853064Abstract: A manufacture method of a via hole for a display panel, a manufacture method of a display panel, and a display panel are provided. During forming the via hole, a top film layer in an area to be formed with a via hole over a circuit pattern is etched under a first etching condition according to a slope angle as required; and a remaining portion in the area to be formed with a via hole is etched under a second etching condition according to a selection ratio as required, so as to form the via hole finally. A problem in one-step etching process that the slope angle and the selection ratio cannot be set flexibly is avoided.Type: GrantFiled: November 18, 2013Date of Patent: December 26, 2017Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Tiansheng Li, Zhenyu Xie
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Patent number: 9768163Abstract: A semiconductor device includes a first gate pattern and a second gate pattern on a substrate, the first gate pattern having a first height and the second gate pattern having a second height, an insulating pattern on the substrate covering the first and second gate patterns, the insulating pattern including a trench exposing the substrate between the first and second gate patterns, a spacer contacting at least a portion of a sidewall of the insulating pattern within the trench, the spacer spaced apart from the first and second gate patterns and having a third height larger than the first and second heights, and a contact structure filling the trench.Type: GrantFiled: June 19, 2015Date of Patent: September 19, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Doo-Young Lee, Sang-Hyun Lee, Myung-Hoon Jung, Do-Hyoung Kim
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Patent number: 9676193Abstract: A substrate processing method includes forming a first hole in a first surface of a silicon substrate to have a depth that it does not extend through the substrate and forming a second hole in a second surface to make the second hole to communicate with the first hole, so that a through hole formed of the first and second holes is formed in the substrate. The process of forming the second hole includes forming a communication portion wider than an opening of the first hole between the first and second holes after the second hole has been made to communicate with the first hole by dry etching.Type: GrantFiled: May 8, 2015Date of Patent: June 13, 2017Assignee: Canon Kabushiki KaishaInventors: Masataka Kato, Hiroshi Higuchi, Yoshinao Ogata, Seiko Minami, Masaya Uyama, Toshiyasu Sakai
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Patent number: 9666479Abstract: Semiconductor fabrication techniques and associated semiconductor devices are provided in which conductive lines are separated by a low dielectric constant (low-k) material such as low-k film portions or air. An insulation layer such as SiO2 is etched to form raised structures. The structures are slimmed and a low-k material or sacrificial material is deposited. A further etching removes the material except for portions on sidewalls of the slimmed structures. A metal barrier layer and seed layer are then deposited, followed by a metal filler such as copper. Chemical mechanical polishing (CMP) removes portions of the metal above the raised structures, leaving only portions of the metal between the raised structures as spaced apart conductive lines. The sacrificial material can be removed by a thermal process, leaving air gaps. The raised structures provide strength while the air gap or other low-k material reduces capacitance.Type: GrantFiled: June 22, 2016Date of Patent: May 30, 2017Assignee: SanDisk Technologies LLCInventor: Noritaka Fukuo
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Patent number: 9627247Abstract: Provided is a method of fabricating a semiconductor device, including the following. A first material layer, a second material layer and a mask layer are formed on a substrate. A portion of the second material layer is removed by performing a first etching process with the mask layer as a mask, so as to expose the first material layer and form a first pattern layer and a second pattern layer. A portion of the first material layer is removed by performing a second etching process with the mask layer as a mask, so as to expose a portion of the substrate. A portion of the substrate is removed by performing a third etching process with the mask layer as a mask, so as to form first trenches and second trenches. Sidewalls of the second trenches and a surface of the substrate form at least two different angles.Type: GrantFiled: June 3, 2015Date of Patent: April 18, 2017Assignee: MACRONIX International Co., Ltd.Inventors: Fang-Hao Hsu, Hong-Ji Lee
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Patent number: 9536826Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a first metal layer formed over a substrate and an interconnect structure formed over the first metal layer. The interconnect structure includes an upper portion, a middle portion and a lower portion, the middle portion is connected between the upper portion and the lower portion. The upper portion and the lower portion each have a constant width, and the middle portion has a tapered width which is gradually tapered from the upper portion to the lower portion.Type: GrantFiled: July 14, 2015Date of Patent: January 3, 2017Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Che-Cheng Chang, Chih-Han Lin
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Patent number: 9431345Abstract: According to one embodiment, a semiconductor device includes a metal interconnect and a graphene interconnect which are stacked to one another.Type: GrantFiled: September 10, 2013Date of Patent: August 30, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Atsuko Sakata, Masayuki Kitamura, Makoto Wada, Masayuki Katagiri, Yuichi Yamazaki, Akihiro Kajita
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Patent number: 8956969Abstract: A hole formation method including applying a pillar-forming liquid to a base material, to thereby form a pillar; applying an insulating film-forming material to the base material on which the pillar has been formed, to thereby form an insulating film; removing the pillar to form an opening in the insulating film; and heat treating the insulating film in which the opening has been formed.Type: GrantFiled: February 14, 2012Date of Patent: February 17, 2015Assignees: Ricoh Company, Ltd., Sijtechnology, Inc.Inventors: Yuji Sone, Naoyuki Ueda, Yuki Nakamura, Yukiko Abe, Kazuhiro Murata, Kazuyuki Masuda
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Patent number: 8896127Abstract: An integrated circuit structure includes a semiconductor substrate and a hard mask layer formed on the semiconductor substrate. The integrated circuit structure further includes at least a conductive layer formed in the hard mask layer and a via extending from the hard mask layer to at least a portion of the semiconductor substrate, wherein the via has a round corner and a tapered sidewall.Type: GrantFiled: November 8, 2012Date of Patent: November 25, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Pin Chang, Wen-Chih Chiou, Chen-Hua Yu
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Patent number: 8822331Abstract: An anchored conductive damascene buried in a multi-density dielectric layer and method for forming the same, the anchored conductive damascene including a dielectric layer with an opening extending through a thickness of the dielectric layer; wherein the dielectric layer comprises at least one relatively higher density portion and a relatively lower density portion, the relatively lower density portion forming a contiguous major portion of the dielectric layer; and, wherein the opening in the relatively lower density portion has a lateral dimension relatively larger compared to the relatively higher density portion to form anchoring steps.Type: GrantFiled: March 2, 2011Date of Patent: September 2, 2014Assignee: Taiwan Semiconductor Manufacturing Co. Ltd.Inventors: David Lu, Horng-Huei Tseng, Syun-Ming Jang
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Patent number: 8815734Abstract: A gas cluster ion beam process is used to reduce and/or even eliminate metal void formation in an interconnect structure. In one embodiment, gas cluster ion beam etching forms a chamfer opening in an interconnect dielectric material. In another embodiment, gas cluster ion beam etching reduces the overhang profile of a diffusion barrier or a multilayered stack of a diffusion barrier and a plating seed layer that is formed within an opening located in an interconnect dielectric material. In yet another embodiment, a gas cluster ion beam process deactivates a surface of an interconnect dielectric material that is located at upper corners of an opening that is formed therein. In this embodiment, the gas cluster ion beam process deposits a material that deactivates the upper corners of each opening that is formed into an interconnect dielectric material.Type: GrantFiled: November 7, 2011Date of Patent: August 26, 2014Assignee: International Business Machines CorporationInventors: Kangguo Cheng, Junli Wang, Keith Kwong Hon Wong, Chih-Chao Yang
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Patent number: 8716124Abstract: A semiconductor device fabrication process includes forming insulating mandrels over replacement metal gates on a semiconductor substrate with first gates having sources and drains and at least one second gate being isolated from the first gates. Mandrel spacers are formed around each insulating mandrel. The mandrels and mandrel spacers include the first insulating material. A second insulating layer of the second insulating material is formed over the transistor. One or more first trenches are formed to the sources and drains of the first gates by removing the second insulating material between the insulating mandrels. A second trench is formed to the second gate by removing portions of the first and second insulating materials above the second gate. The first trenches and the second trench are filled with conductive material to form first contacts to the sources and drains of the first gates and a second contact to the second gate.Type: GrantFiled: November 14, 2011Date of Patent: May 6, 2014Assignee: Advanced Micro DevicesInventor: Richard T. Schultz
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Patent number: 8716127Abstract: A metal interconnect structure, which includes metal alloy capping layers, and a method of manufacturing the same. The originally deposited alloy capping layer element within the interconnect features will diffuse into and segregate onto top surface of the metal interconnect. The metal alloy capping material is deposited on a reflowed copper surface and is not physically in contact with sidewalls of the interconnect features. The metal alloy capping layer is also reflowed on the copper. Thus, there is a reduction in electrical resistivity impact from residual alloy elements in the interconnect structure. That is, there is a reduction, of alloy elements inside the features of the metal interconnect structure. The metal interconnect structure includes a dielectric layer with a recessed line, a liner material on sidewalls, a copper material, an alloy capping layer, and a dielectric cap.Type: GrantFiled: May 11, 2013Date of Patent: May 6, 2014Assignee: International Business Machines CorporationInventors: Chih-Chao Yang, Marc A. Bergendahl, Steven J. Holmes, David V. Horak, Charles W. Koburger, Shom Ponoth
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Patent number: 8685861Abstract: A integrated circuit system including providing an integrated circuit device, forming an undoped insulating layer over the integrated circuit device, forming a thin insulating layer over the undoped insulating layer, forming a doped insulating layer over the thin insulating layer, and forming a contact in the undoped insulating layer, thin insulating layer and the doped insulating layer.Type: GrantFiled: August 2, 2006Date of Patent: April 1, 2014Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
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Patent number: 8664114Abstract: A method for fabricating an image sensor includes at least one of: (1) Forming a gate on a semiconductor substrate; (2) Forming spacers on both side walls of the gate and forming a dummy pattern on an upper portion of the semiconductor substrate; and (3) Forming a metal pad for an electrical connection on an upper portion of the dummy pattern. The method may include at least one of: (1) Forming an interlayer dielectric layer covering the entire semiconductor substrate, (2) Etching portions of the interlayer dielectric layer and the semiconductor substrate to form a super-contact hole; and (3) forming an insulation film on the entire surface of the interlayer dielectric layer. The method may include forming normal contact holes such that a portion of an upper portion of the gate and a partial region of the metal pad for an electrical connection are exposed and filling up the normal contact holes with a conductive material to form normal contacts.Type: GrantFiled: January 16, 2013Date of Patent: March 4, 2014Assignee: Dongbu HiTek Co., Ltd.Inventor: Ki-Jun Yun
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Patent number: 8628984Abstract: A package system includes a substrate having at least one first thermally conductive structure through the substrate. At least one second thermally conductive structure is disposed over the at least one first thermally conductive structure. At least one light-emitting diode (LED) is disposed over the at least one second thermally conductive structure.Type: GrantFiled: February 15, 2013Date of Patent: January 14, 2014Assignee: TSMC Solid State Lighting Ltd.Inventor: Chung Yu Wang
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Publication number: 20130341802Abstract: Integrated circuit packages comprise vias, each of which extends from a pad in communication with an integrated circuit on a semiconductor chip through insulating material overlying the semiconductor chip to an attachment surface facing a substrate. The portion of each via proximate the attachment surface is laterally offset from the portion proximate the pad from which it extends in a direction away from the centre of the semiconductor chip. Metallic material received in the vias mechanically and electrically interconnects the semiconductor chip to the substrate.Type: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Applicant: ADVANCED MICRO DEVICES, INC.Inventors: Michael Z. Su, Fu Lei, Frank Kuechenmeister
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Publication number: 20130313720Abstract: A packaging substrate includes a high reliability via structure that extends through multiple layers of the packaging substrate. The via structure includes an opening formed through multiple layers of the packaging substrate and an electrically conductive layer that is deposited in the opening. The opening is formed in a single material removal process and the conductive layer is formed in a single deposition process. Because the conductive layer is formed in a single deposition process, the conductive layer provides an interface-free conductive path between the multiple layers.Type: ApplicationFiled: May 25, 2012Publication date: November 28, 2013Inventors: Leilei ZHANG, Zuhair Bokharey
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Patent number: 8586470Abstract: A multilevel interconnect structure for a semiconductor device includes an intermetal dielectric layer with funnel-shaped connecting vias. The funnel-shaped connecting vias are provided in connection with systems exhibiting submicron spacings. The architecture of the multilevel interconnect structure provides a low resistance connecting via.Type: GrantFiled: April 21, 2011Date of Patent: November 19, 2013Assignee: STMicroelectronics S.r.l.Inventors: Antonio Di Franco, Silvio Cristofalo, Marco Bonifacio
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Patent number: 8569167Abstract: Methods of forming a Ni material on a bond pad are disclosed. The methods include forming a dielectric material over a bond pad, forming an opening within the dielectric material to expose the bond pad, curing the dielectric material to form a surface of the dielectric material having a steep curvilinear profile, and forming a nickel material over the at least one bond pad. The dielectric material having a steep curvilinear profile may be formed by altering at least one of a curing process of the dielectric material and a thickness of the dielectric material. The dielectric material may be used to form a relatively thick Ni material on bond pads smaller than about 50 ?m. Semiconductor structures formed by such methods are also disclosed.Type: GrantFiled: March 29, 2011Date of Patent: October 29, 2013Assignee: Micron Technology, Inc.Inventors: Jaspreet S. Ghandi, Don L. Yates, Yangyang Sun
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Patent number: 8492274Abstract: A metal interconnect structure, which includes metal alloy capping layers, and a method of manufacturing the same. The originally deposited alloy capping layer element within the interconnect features will diffuse into and segregate onto top surface of the metal interconnect. The metal alloy capping material is deposited on a reflowed copper surface and is not physically in contact with sidewalls of the interconnect features. The metal alloy capping layer is also reflowed on the copper. Thus, there is a reduction in electrical resistivity impact from residual alloy elements in the interconnect structure. That is, there is a reduction, of alloy elements inside the features of the metal interconnect structure. The metal interconnect structure includes a dielectric layer with a recessed line, a liner material on sidewalls, a copper material, an alloy capping layer, and a dielectric cap.Type: GrantFiled: October 17, 2012Date of Patent: July 23, 2013Assignee: International Business Machines CorporationInventors: Chih-Chao Yang, Marc A. Bergendahl, Steven J. Holmes, David V. Horak, Charles W. Koburger, III, Shom Ponoth
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Patent number: 8450850Abstract: Provided are a thin-film transistor (TFT) substrate and a method of manufacturing the same. The method includes: forming a passivation film by forming an insulating film on a substrate; forming a photoresist pattern by forming a photoresist film on the passivation film, exposing the photoresist film to light, and developing the photoresist film; performing a first dry-etching by dry-etching the passivation film using the photoresist pattern as an etch mask; performing a baking to reduce a size of the photoresist pattern; performing a second dry-etching to form a contact hole by dry-etching the passivation film again using the photoresist pattern as a mask; removing the photoresist pattern; and forming a pixel electrode of a carbon composition that includes carbon nanotubes and/or graphene on a top surface of the passivation film.Type: GrantFiled: July 28, 2011Date of Patent: May 28, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hong Long Ning, Chang-Oh Jeong, Ji-Young Park, Sang-Gab Kim, Sung-Haeng Cho, Yeon-Hong Kim, Jin-Su Byun
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Patent number: 8421238Abstract: A semiconductor device includes a semiconductor substrate including a first surface and a second surface opposite to the first surface, and a through-via penetrating the semiconductor substrate. The through-via has a stacked structure of a first conductive film formed in a portion of the semiconductor substrate closer to the first surface, and a second conductive film formed in a portion of the semiconductor substrate closer to the second surface. An insulating layer is buried inside the semiconductor substrate. The first conductive film is electrically connected to the second conductive film in the insulating layer.Type: GrantFiled: August 25, 2011Date of Patent: April 16, 2013Assignee: Panasonic CorporationInventor: Daisuke Inagaki
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Patent number: 8415804Abstract: A semiconductor chip, a method of fabricating the same, and a stack module and a memory card including the semiconductor chip include a first surface and a second surface facing the first surface is provided. At least one via hole including a first portion extending in a direction from the first surface of the substrate to the second surface of the substrate and a second portion that is connected to the first portion and has a tapered shape. At least one via electrode filling the at least one via hole is provided.Type: GrantFiled: December 16, 2009Date of Patent: April 9, 2013Assignee: SAMSUNG Electronics Co., Ltd.Inventors: Ho-jin Lee, Dong-hyun Jang, In-young Lee, Min-seung Yoon, Son-kwan Hwang
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Patent number: 8409956Abstract: Methods of forming integrated circuit devices include forming first and second gate electrodes at side-by-side locations on a substrate and forming first and second sidewall spacers on sidewalls of the first gate electrode and the second gate electrode, respectively. The first and second gate electrodes are covered with a first electrically insulating layer of a first material. A second electrically insulating layer of a second material is deposited on the first electrically insulating layer. The second electrically insulating layer is patterned to define a first opening therein that exposes an underlying first portion of the first electrically insulating layer.Type: GrantFiled: October 27, 2011Date of Patent: April 2, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Hong Seong Kang
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Publication number: 20130069244Abstract: A rectangular via extending between interconnects in different metallization levels can have a planform with a width equal to the width of the interconnects and a length equal to twice the width and can be aligned along a long dimension with a length of the upper interconnect. In an integrated circuit layout, the planform can be centered over the width of the lower interconnect, allowing for misalignment during fabrication while maintaining a robust electrical connection. The bottom of the via may be aligned with an upper surface of the lower interconnect or may include portions below the lower interconnect's upper surface. Fewer adjacent routing tracks are blocked by use of the rectangular via than would be blocked using redundant square vias, while ensuring reliability of the electrical connection despite potential misalignment during fabrication.Type: ApplicationFiled: June 21, 2012Publication date: March 21, 2013Applicant: Texas Instruments IncorporatedInventor: James Walter Blatchford