With Increased Surface Area, E.g., By Roughening, Texturing (epo) Patents (Class 257/E21.012)
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Patent number: 12191158Abstract: A method for manufacturing a semiconductor device includes depositing a first hard mask layer and a first dielectric layer over a substrate, forming a patterned layer over the first dielectric layer, forming a second hard mask layer over the patterned layer, patterning the second hard mask layer to remove first horizontal portions of the second hard mask layer and leave second portions of the second hard mask layer along sidewalls of the patterned layer, etching a trench in the first dielectric layer using the second portions of the second hard mask layer and the patterned layer as an etching mask, depositing a first gap-filling material in the trench and patterning the first hard mask layer using the first gap-filling material, the patterned layer, and the second portions of the second hard mask layer as a mask.Type: GrantFiled: October 28, 2021Date of Patent: January 7, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventor: Kuan-Wei Huang
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Patent number: 12165878Abstract: Provided herein are methods and related apparatus for mask reconstruction in an etch process. The methods involve depositing a sacrificial layer on the mask layer. The sacrificial layer may be used to protect portions of the mask layer during reshaping by inhibiting etching of or deposition on the mask layer position on the mask layer. Following mask reshaping, the sacrificial layer may be removed using the same etch process that is used to etch the target material.Type: GrantFiled: February 26, 2020Date of Patent: December 10, 2024Assignee: Lam Research CorporationInventors: Zhongkui Tan, Xiaofeng Su, Hua Xiang, Ce Qin
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Patent number: 12034086Abstract: A device includes, in a first region, a first conductive interconnect, an electrode structure on the first conductive interconnect, where the electrode structure includes a first conductive hydrogen barrier layer and a first conductive fill material. A trench capacitor including a ferroelectric material or a paraelectric material is on the electrode structure. A second dielectric includes an amorphous, greater than 90% film density hydrogen barrier material laterally surrounds the memory device. A via electrode including a second conductive hydrogen barrier material is on at least a portion of the memory device. A second region includes a conductive interconnect structure embedded within a less than 90% film density dielectric material.Type: GrantFiled: December 15, 2021Date of Patent: July 9, 2024Inventors: Somilkumar J. Rathi, Noriyuki Sato, Niloy Mukherjee, Rajeev Kumar Dokania, Amrita Mathuriya, Tanay Gosavi, Pratyush Pandey, Jason Y. Wu, Sasikanth Manipatruni
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Patent number: 12016174Abstract: A semiconductor device includes a substrate, a plurality of bit lines, a plurality of contacts, a plurality of storage node pads, a capacitor structure and a plurality of first interface layers. The bit lines and the contacts are disposed on the substrate, and the contacts are alternately and separately disposed with the bit lines. The storage node pads are disposed on the contacts and the bit lines, and are respectively aligned with the contacts. The capacitor structure is disposed on the storage node pads. The first interface layers are disposed between the storage node pads and the capacitor structure, and the first interface layers include a metal nitride material. The first interface layers may improve the granular size of the storage node pads, and reduce the surface roughness thereof, and further improve the electrical connection between the storage nodes and transistor components below.Type: GrantFiled: February 17, 2022Date of Patent: June 18, 2024Assignee: Fujian Jinhua Integrated Circuit Co., Ltd.Inventor: Min-Teng Chen
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Patent number: 11961877Abstract: A device includes, in a first region, a first conductive interconnect, an electrode structure on the first conductive interconnect, where the electrode structure includes a first conductive hydrogen barrier layer and a first conductive fill material. A trench capacitor including a ferroelectric material or a paraelectric material is on the electrode structure. A second dielectric includes an amorphous, greater than 90% film density hydrogen barrier material laterally surrounds the memory device. A via electrode including a second conductive hydrogen barrier material is on at least a portion of the memory device. A second region includes a conductive interconnect structure embedded within a less than 90% film density dielectric material.Type: GrantFiled: December 14, 2021Date of Patent: April 16, 2024Assignee: KEPLER COMPUTING INC.Inventors: Somilkumar J. Rathi, Noriyuki Sato, Niloy Mukherjee, Rajeev Kumar Dokania, Amrita Mathuriya, Tanay Gosavi, Pratyush Pandey, Jason Y. Wu, Sasikanth Manipatruni
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Patent number: 11824099Abstract: A method includes forming a gate structure over a silicon on insulator (SOI) substrate. The SOI substrate comprising: a base semiconductor layer; an insulator layer over the base semiconductor layer; and a top semiconductor layer over the insulator layer. The method further includes depositing a gate spacer layer over a top surface and along a sidewall of the gate structure; etching the gate spacer layer to define a gate spacer on the sidewall of the gate structure; after etching the gate spacer layer, etching a recess into the top semiconductor layer using a first etch process; and after the first etch process, extending the recess further into the top semiconductor layer using a second etch process. The first etch process is different from the second etch process. The method further includes forming a source/drain region in the recess after the second etch process.Type: GrantFiled: June 15, 2020Date of Patent: November 21, 2023Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chi-Ming Chen, Kuei-Ming Chen, Po-Chun Liu, Chung-Yi Yu
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Patent number: 11581318Abstract: A method of manufacturing a semiconductor device includes forming a first pattern structure having a first opening and a second pattern structure having a second opening on a substrate, forming a gap fill layer in the second opening, forming fences and contact structures in the first opening, removing the gap fill layer in the second opening, forming an upper conductive layer to cover the first and second pattern structures, the fences, and the contact structures, forming a mask pattern based on a photolithography process using the second pattern structure covered by the upper conductive layer as an align mark, and etching the upper conductive layer using the mask pattern to form upper conductive patterns. A width of the second opening is larger than a width of a first opening. A thickness of the upper conductive layer is smaller than a depth of the second opening.Type: GrantFiled: April 22, 2021Date of Patent: February 14, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Hye Sung Park, Jong Hyuk Park, Jin Woo Bae, Bo Un Yoon, Il Young Yoon, Bong Sik Choi
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Patent number: 11469140Abstract: The present application discloses a semiconductor device having a landing pad with spacers and a method for fabricating the semiconductor device. The semiconductor device includes a first insulating layer, a second insulating layer, a conductive pillar and spacers. The first insulating layer is disposed on a substrate. The second insulating layer is disposed on the first insulating layer. The conductive pillars are disposed in the first insulating layer and penetrates through the second insulating layer. The spacers are disposed on sidewalls of the conductive pillars.Type: GrantFiled: August 25, 2020Date of Patent: October 11, 2022Assignee: NANYA TECHNOLOGY CORPORATIONInventor: Chih-Tsung Wu
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Patent number: 11232985Abstract: A semiconductor device is disclosed. The device includes a source/drain feature formed over a substrate. A dielectric layer formed over the source/drain feature. A contact trench formed through the dielectric layer to expose the source/drain feature. A titanium nitride (TiN) layer deposited in the contact trench and a cobalt layer deposited over the TiN layer in the contact trench.Type: GrantFiled: September 16, 2019Date of Patent: January 25, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chun-Hsien Huang, Hong-Mao Lee, Hsien-Lung Yang, Yu-Kai Chen, Wei-Jung Lin
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Patent number: 11233288Abstract: A method of forming a semiconductor structure includes forming at least one trench in a non-porous silicon substrate, the at least one trench providing an energy storage device containment feature. The method also includes forming an electrical and ionic insulating layer disposed over a top surface of the non-porous silicon substrate. The method further includes forming, in at least a base of the at least one trench, a porous silicon layer of unitary construction with the non-porous silicon substrate. The porous silicon layer provides at least a portion of a first active electrode for an energy storage device disposed in the energy storage device containment feature.Type: GrantFiled: July 11, 2018Date of Patent: January 25, 2022Assignee: International Business Machines CorporationInventors: John Collins, Joel P. de Souza, Devendra K. Sadana
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Patent number: 11007005Abstract: In a method of forming a FinFET, a first sacrificial layer is formed over a source/drain structure of a FinFET structure and an isolation insulating layer. The first sacrificial layer is recessed so that a remaining layer of the first sacrificial layer is formed on the isolation insulating layer and an upper portion of the source/drain structure is exposed. A second sacrificial layer is formed on the remaining layer and the exposed source/drain structure. The second sacrificial layer and the remaining layer are patterned, thereby forming an opening. A dielectric layer is formed in the opening. After the dielectric layer is formed, the patterned first and second sacrificial layers are removed to form a contact opening over the source/drain structure. A conductive layer is formed in the contact opening.Type: GrantFiled: May 24, 2018Date of Patent: May 18, 2021Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tung Ying Lee, Ziwei Fang, Yee-Chia Yeo, Meng-Hsuan Hsiao
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Patent number: 10910158Abstract: A capacitor and a method of fabricating the capacitor are provided. The capacitor includes a structure for forming a three-dimensional capacitor, the structure being a pillar structure or a trench structure; where when the structure is a pillar structure, the aspect ratio of the pillar structure is more than 10; when the structure is a trench structure, the capacitor further includes a substrate, the trench structure is formed by a material layer disposed on the surface of a base trench of the substrate, and the aspect ratio of the trench structure is more than 10. The aspect ratio of the pillar structure of the capacitor or the aspect ratio of the trench structure may be more than 10, so that the performance of the capacitor is better.Type: GrantFiled: October 29, 2019Date of Patent: February 2, 2021Assignee: SHENZHEN WEITONGBO TECHNOLOGY CO., LTD.Inventors: Bin Lu, Jian Shen
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Patent number: 10600796Abstract: Methods of improving adhesion between a photoresist and conductive or insulating structures. The method comprises forming a slot through at least a portion of alternating conductive structures and insulating structures on a substrate. Portions of the conductive structures or of the insulating structures are removed to form recesses in the conductive structures or in the insulating structures. A photoresist is formed over the alternating conductive structures and insulating structures and within the slot. Methods of improving adhesion between a photoresist and a spin-on dielectric material are also disclosed, as well as methods of forming a staircase structure.Type: GrantFiled: June 15, 2017Date of Patent: March 24, 2020Assignee: Micron Technology, Inc.Inventors: Rohit Kothari, Jason C. McFarland, Jason Reece, David A. Kewley, Adam L. Olson
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Patent number: 10420235Abstract: An electronic device is provided. The electronic device includes a first metal plate of a metal bezel that forms the external appearance of the electronic device, a second metal plate that overlaps the first metal plate while being spaced apart from the first metal plate, a dielectric member interposed between the first metal plate and the second metal plate, and a substrate electrically connected to a contact terminal of the second metal plate to feed power. Other embodiments are possible.Type: GrantFiled: June 16, 2016Date of Patent: September 17, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Won Park, Seungyup Lee, Sangil Lee, Won-Jea Jang
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Patent number: 10177092Abstract: A method for fabricating an advanced metal conductor structure is described. A pattern in a dielectric layer is provided. The pattern includes a set of features in the dielectric for a set of metal conductor structures. An adhesion promoting layer is created over the patterned dielectric. A ruthenium layer is deposited over the adhesion promoting layer. Using a physical vapor deposition process, a cobalt layer is deposited over the ruthenium layer. A thermal anneal is performed which reflows the cobalt layer to fill the set of features to form a set of metal conductor structures.Type: GrantFiled: November 15, 2017Date of Patent: January 8, 2019Assignee: International Business Machines CorporationInventors: Daniel C Edelstein, Chih-Chao Yang
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Patent number: 10026647Abstract: The present disclosure describes methods which employ a patterning photolithography/etch operations to form self-aligned interconnects with multi-metal gap fill. For example, the method includes a first pattern structure and a second pattern structure formed over a dielectric layer. Each of the first and second pattern structures includes a pair of spacers, and a center portion between the pair of spacers. A first opening, self-aligned to a space between the first and second pattern structures, is formed in the dielectric layer. A first conductive material is deposited in the first opening. The center portion of the second pattern structure is removed to form a void above the dielectric layer and between the pair of spacers of the second pattern structure. A second opening, self-aligned to the void, is formed in the dielectric layer; and a second conductive material is deposited in the second opening.Type: GrantFiled: April 26, 2017Date of Patent: July 17, 2018Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Wei-Chen Chu, Tai-I Yang, Cheng-Chi Chuang, Chia-Tien Wu
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Patent number: 10008497Abstract: In a method of forming a FinFET, a first sacrificial layer is formed over a source/drain structure of a FinFET structure and an isolation insulating layer. The first sacrificial layer is recessed so that a remaining layer of the first sacrificial layer is formed on the isolation insulating layer and an upper portion of the source/drain structure is exposed. A second sacrificial layer is formed on the remaining layer and the exposed source/drain structure. The second sacrificial layer and the remaining layer are patterned, thereby forming an opening. A dielectric layer is formed in the opening. After the dielectric layer is formed, the patterned first and second sacrificial layers are removed to form a contact opening over the source/drain structure. A conductive layer is formed in the contact opening.Type: GrantFiled: May 23, 2017Date of Patent: June 26, 2018Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tung Ying Lee, Ziwei Fang, Yee-Chia Yeo, Meng-Hsuan Hsiao
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Patent number: 9859215Abstract: A method for fabricating an advanced metal conductor structure is described. A pattern in a dielectric layer is provided. The pattern includes a set of features in the dielectric for a set of metal conductor structures. An adhesion promoting layer is created over the patterned dielectric. A ruthenium layer is deposited over the adhesion promoting layer. Using a physical vapor deposition process, a cobalt layer is deposited over the ruthenium layer. A thermal anneal is performed which reflows the cobalt layer to fill the set of features to form a set of metal conductor structures. In another aspect of the invention, an integrated circuit device is formed using the method.Type: GrantFiled: August 17, 2016Date of Patent: January 2, 2018Assignee: International Business Machines CorporationInventors: Daniel C Edelstein, Chih-Chao Yang
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Patent number: 9852990Abstract: A method for fabricating an advanced metal conductor structure is described. A pattern in a dielectric layer is provided. The pattern includes a set of features in the dielectric for a set of metal conductor structures. An adhesion promoting layer is created over the patterned dielectric. A ruthenium layer is deposited over the adhesion promoting layer. Using a physical vapor deposition process, a cobalt layer is deposited over the ruthenium layer. A thermal anneal is performed which reflows the cobalt layer to fill the set of features to form a set of metal conductor structures. In another aspect of the invention, an integrated circuit device is formed using the method.Type: GrantFiled: August 17, 2016Date of Patent: December 26, 2017Assignee: International Business Machines CorporationInventors: Daniel C Edelstein, Chih-Chao Yang
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Patent number: 9847266Abstract: A method of fabricating a semiconductor device includes etching a stack of first-material layers and second-material layers alternately disposed one on another on a substrate. An upper portion of the stack is etched using an end point detection (EPD) signal of an etching reaction gas, and a function of an injection time of an etchant with respect to a depth of an opening is obtained while the upper portion of the stack is etched. A lower portion of the stack is etched using the obtained function.Type: GrantFiled: May 26, 2016Date of Patent: December 19, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-Hwa Kim, Chanhoon Park, Dongsoo Lee, Jaehyun Lee, Hyung Joo Lee, Kangmin Jeon, Kyounghoon Han
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Patent number: 9741562Abstract: Provided is a method for forming a silicon film, and more particularly, to a method for forming a polycrystalline silicon film including pretreatment process in a process for forming a silicon film. According to an embodiment of the present invention, a method for forming a polycrystalline silicon film by annealing a amorphous silicon film deposited on a base, the method includes a pretreatment process of allowing a pretreatment gas including at least one of N, C, O and B to flow.Type: GrantFiled: January 27, 2015Date of Patent: August 22, 2017Assignee: EUGENE TECHNOLOGY CO., LTD.Inventors: Seung-Woo Shin, Woo Duck Jung, Sung-Kil Cho, Ho Min Choi, Wan Suk Oh, Koon Woo Lee, Hyuk Lyong Gwon, Seong Jin Park, Ki Ho Kim, Kang-Wook Lee
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Patent number: 9678435Abstract: Aspects of the disclosed techniques relate to techniques for resist simulation in lithography. Local minimal light intensity values are determined for a plurality of sample points in boundary regions of an aerial image of a feature to be printed on a resist coating, wherein each of the local minimal light intensity values represents a minimum light intensity value for an area surrounding one of the plurality of sample points. Based on the local minimal light intensity values, horizontal development bias values for the plurality of sample points are then determined. Finally, resist contour data of the feature are determined based at least on the horizontal development bias values.Type: GrantFiled: September 22, 2014Date of Patent: June 13, 2017Assignee: Mentor Graphics, A Siemens BusinessInventors: Yunfei Deng, Yuri Granik, Dmitry Medvedev, Yuan He, Konstantinos Adam
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Patent number: 9607998Abstract: A semiconductor storage device includes an insulating layer. A ferroelectric capacitor is on the insulating layer and includes a lower electrode, a ferroelectric film, and an upper electrode. An interlayer insulating film is formed on the insulating layer, and has an opening where the ferroelectric capacitor is disposed. A first metal plug is formed in the insulating layer and connected to the lower electrode via the opening. A second metal plug is embedded in the insulating layer outside the ferroelectric capacitor. A hydrogen barrier film covers the ferroelectric capacitor and the interlayer insulating film. An upper surface of the interlayer insulating film is higher than an upper surface of the first metal plug so that a step is therebetween. The lower electrode is formed on the upper surface of the interlayer insulating film, the upper surface of the first metal plug and the step.Type: GrantFiled: May 4, 2016Date of Patent: March 28, 2017Assignee: ROHM CO., LTD.Inventor: Yuichi Nakao
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Patent number: 9409767Abstract: An energy storage structure includes an energy storage device containing at least one porous structure (110, 120, 510, 1010) that contains multiple channels (111, 121), each one of which has an opening (112, 122) to a surface (115, 116, 515, 516, 1015, 1116) of the porous structure, and further includes a support structure (102, 402, 502, 1002) for the energy storage device. In a particular embodiment, the porous structure and the support structure are both formed from a first material, and the support structure physically contacts a first portion (513, 813, 1213) of the energy storage device and exposes a second portion (514, 814, 1214) of the energy storage device.Type: GrantFiled: November 3, 2011Date of Patent: August 9, 2016Assignee: Intel CorporationInventors: Donald S. Gardner, Zhaohui Chen, Wei C. Jin, Eric C. Hannah, John L. Gustafson, Tomm V. Aldridge
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Patent number: 8969198Abstract: A perforating ohmic contact to a semiconductor layer in a semiconductor structure is provided. The perforating ohmic contact can include a set of perforating elements, which can include a set of metal protrusions laterally penetrating the semiconductor layer(s). The perforating elements can be separated from one another by a characteristic length scale selected based on a sheet resistance of the semiconductor layer and a contact resistance per unit length of a metal of the perforating ohmic contact contacting the semiconductor layer. The structure can be annealed using a set of conditions configured to ensure formation of the set of metal protrusions.Type: GrantFiled: June 4, 2013Date of Patent: March 3, 2015Assignee: Sensor Electronic Technology, Inc.Inventors: Mikhail Gaevski, Grigory Simin, Maxim S Shatalov, Alexander Dobrinsky, Michael Shur, Remigijus Gaska
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Patent number: 8946906Abstract: To provide a multilayer wiring substrate in which the connection reliability of via conductors is enhanced, via holes are formed in a resin interlayer insulation layer which isolates a lower conductor layer from an upper conductor layer, and via conductors are formed in the via holes for connecting the lower conductor layer and the upper conductor layer. The surface of the resin interlayer insulation layer is a rough surface, and the via holes open at the rough surface of the resin interlayer insulation layer. Stepped portions are formed in opening verge regions around the via holes such that the stepped portions are recessed from peripheral regions around the opening verge regions. The stepped portions are higher in surface roughness than the peripheral regions.Type: GrantFiled: December 13, 2011Date of Patent: February 3, 2015Assignee: NGK Spark Plug Co., Ltd.Inventor: Shinnosuke Maeda
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Patent number: 8927346Abstract: An electrically, thermally, or electrically and thermally actuated device is disclosed herein. The device includes a substrate, a first electrode established on the substrate, an active region established on the electrode, and a second electrode established on the active region. A pattern is defined in at least one of the substrate, the first electrode, the second electrode, or the active region. At least one of grain boundaries are formed within, or surface asperities are formed on, at least one of the electrodes or the active region. The pattern controls the at least one of the grain boundaries or surface asperities.Type: GrantFiled: December 31, 2008Date of Patent: January 6, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventor: Theodore I Kamins
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Patent number: 8912653Abstract: A semiconductor wafer has integrated circuits formed thereon and a top passivation layer applied. The passivation layer is patterned and selectively etched to expose contact pads on each semiconductor die. The wafer is exposed to ionized gas causing the upper surface of passivation layer to roughen and to slightly roughen the upper surface of the contact pads. The wafer is cut to form a plurality of semiconductor dies each with a roughened passivation layer. The plurality of semiconductor dies are placed on an adhesive layer and a reconstituted wafer formed. Redistribution layers are formed to complete the semiconductor package having electrical contacts for establishing electrical connections external to the semiconductor package, after which the wafer is singulated to separate the dice.Type: GrantFiled: December 15, 2011Date of Patent: December 16, 2014Assignee: STMicroelectronics Pte Ltd.Inventors: Kah Wee Gan, Yonggang Jin, Anandan Ramasamy, Yun Liu
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Patent number: 8723328Abstract: To provide a multilayer wiring substrate in which the connection reliability of via conductors is enhanced, via holes are formed in a resin interlayer insulation layer which isolates a lower conductor layer from an upper conductor layer, and via conductors are formed in the via holes for connecting the lower conductor layer and the upper conductor layer. The surface of the resin interlayer insulation layer is a rough surface, and the via holes open at the rough surface of the resin interlayer insulation layer. Stepped portions are formed in opening verge regions around the via holes such that the stepped portions are recessed from peripheral regions around the opening verge regions. The stepped portions are higher in surface roughness than the peripheral regions.Type: GrantFiled: December 13, 2011Date of Patent: May 13, 2014Assignee: NGK Spark Plug Co., Ltd.Inventor: Shinnosuke Maeda
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Patent number: 8652927Abstract: A method for forming a capacitor stack is described. In some embodiments of the present invention, a first electrode structure is comprised of multiple materials. A first material is formed above the substrate. A portion of the first material is etched. A second material is formed above the first material. A portion of the second material is etched. Optionally, the first electrode structure receives an anneal treatment. A dielectric material is formed above the first electrode structure. Optionally, the dielectric material receives an anneal treatment. A second electrode material is formed above the dielectric material. Typically, the capacitor stack receives an anneal treatment.Type: GrantFiled: January 10, 2013Date of Patent: February 18, 2014Assignee: Intermolecular, Inc.Inventors: Sandra Malhotra, Hanhong Chen, Wim Y. Deweerd, Edward L. Haywood, Hiroyuki Ode, Gerald Richardson
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Patent number: 8610274Abstract: A die structure includes a die and a metallization layer disposed over the front side of the die. The metallization layer includes copper. At least a part of the metallization layer has a rough surface profile. The part with the rough surface profile includes a wire bonding region, to which a wire bonding structure is to be bonded.Type: GrantFiled: September 14, 2010Date of Patent: December 17, 2013Assignee: Infineon Technologies AGInventors: Khalil Hosseini, Frank Kahlmann, Josef Hoeglauer, Ralf Otremba, Georg Meyer-Berg
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Patent number: 8574949Abstract: Embodiments of the current invention describe methods of forming different types of crystalline silicon based solar cells that can be combinatorially varied and evaluated. Examples of these different types of solar cells include front and back contact silicon based solar cells, all-back contact solar cells and selective emitter solar cells. These methodologies all incorporate the formation of site-isolated regions using a combinatorial processing tool and the use of these site-isolated regions to form the solar cell area. Therefore, multiple solar cells may be rapidly formed on a single crystalline silicon substrate for use in combinatorial methodologies. Any of the individual processes of the methods described may be varied combinatorially to test varied process conditions or materials.Type: GrantFiled: September 20, 2010Date of Patent: November 5, 2013Assignee: Intermolecular, Inc.Inventors: Jian Li, Minh Anh Nguyen, Nikhil Kalyankar, Nitin Kumar, Craig Hunter
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Patent number: 8518773Abstract: A method of fabricating a semiconductor capacitor includes forming a cavity in a first dielectric layer. Then, a nitride stack comprising a slow-etch nitride layer disposed between two fast-etch nitride layers is deposited in the cavity. Next, a portion of the nitride stack is etched within the cavity. Continuing, a metal plug is deposited in the cavity. The fast-etch nitride layers of the nitride stack are removed while preserving the slow-etch nitride layer of the nitride stack. A first metal layer is deposited over the slow-etch nitride layer, a second dielectric layer is deposited over the first metal layer, and a second metal layer is deposited over the second dielectric layer.Type: GrantFiled: September 14, 2012Date of Patent: August 27, 2013Assignee: International Business Machines CorporationInventors: David Vaclav Horak, Shom Ponoth, Hosadurga Shobha, Chih-Chao Yang
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Patent number: 8492189Abstract: Embodiments of the current invention include methods of improving a process of forming a textured TCO film by combinatorial methods. The combinatorial method may include depositing a TCO by physical vapor deposition or sputtering, annealing the TCO, and etching the TCO where at least one of the depositing, the annealing, or the etching is performed combinatorially. Embodiments of the current invention also include improved methods of forming the TCO based on the results of combinatorial testing.Type: GrantFiled: April 30, 2012Date of Patent: July 23, 2013Assignee: Intermolecular, Inc.Inventors: Zhi-Wen Sun, Nitin Kumar, Guizhen Zhang, Nikhil Kalyankar, Minh Anh Nguyen
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Patent number: 8441097Abstract: Methods to form memory devices having a MIM capacitor with a recessed electrode are described. In one embodiment, a method of forming a MIM capacitor with a recessed electrode includes forming an excavated feature defined by a lower portion that forms a bottom and an upper portion that forms sidewalls of the excavated feature. The method includes depositing a lower electrode layer in the feature, depositing an electrically insulating layer on the lower electrode layer, and depositing an upper electrode layer on the electrically insulating layer to form the MIM capacitor. The method includes removing an upper portion of the MIM capacitor to expose an upper surface of the electrode layers and then selectively etching one of the electrode layers to recess one of the electrode layers. This recess isolates the electrodes from each other and reduces the likelihood of a current leakage path between the electrodes.Type: GrantFiled: December 23, 2009Date of Patent: May 14, 2013Assignee: Intel CorporationInventors: Joseph M. Steigerwald, Nick Lindert, Steven J. Keating, Christopher J. Jezewski, Timothy E. Glassman
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Publication number: 20130056853Abstract: The present disclosure provides a semiconductor device. The semiconductor device includes a substrate having a surface that is defined by a first axis and a second axis perpendicular to the first axis; and a capacitor disposed on the substrate, the capacitor having an anode component that includes a plurality of first conductive features and a cathode component that includes a plurality of second conductive features. The first conductive features and the second conductive features each include two metal lines extending along the first axis. At least one metal via extending along a third axis that is perpendicular to the surface of the substrate and interconnecting the two metal lines. The first conductive features are interdigitated with the second conductive features along both the second axis and the third axis.Type: ApplicationFiled: September 7, 2011Publication date: March 7, 2013Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventor: Hsiu-Ying Cho
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Patent number: 8304855Abstract: Semiconductor devices (100) and methods of making the same. Each of the semiconductor devices includes a substrate (102) having a first surface (118) and an opposing second surface. A vertical capacitive element (104) is disposed on the first surface of the substrate. The vertical capacitive element comprises a plurality of parallel conductive plates (120b, 120d, 120f, 120h, 120j, 120l, 120n) extending transverse to the first surface of the substrate. Adjacent conductive plates are spaced a distance D from each other. A dielectric material (104) can be disposed in a space separating the adjacent conductive plates. Each of the conductive plates has a height-to-width (h/w) ratio greater than or equal to one.Type: GrantFiled: August 4, 2010Date of Patent: November 6, 2012Assignee: Harris CorporationInventor: David M. Smith
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Patent number: 8263427Abstract: Embodiments of the current invention include methods of improving a process of forming a textured TCO film by combinatorial methods. The combinatorial method may include depositing a TCO by physical vapor deposition or sputtering, annealing the TCO, and etching the TCO where at least one of the depositing, the annealing, or the etching is performed combinatorially. Embodiments of the current invention also include improved methods of forming the TCO based on the results of combinatorial testing.Type: GrantFiled: June 1, 2010Date of Patent: September 11, 2012Assignee: Intermolecular, Inc.Inventors: Zhi-Wen Sun, Nitin Kumar, Guizhen Zhang, Nikhil Kalyankar, Minh Anh Nguyen
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Patent number: 8253148Abstract: An exemplary light emitting diode includes a conductive base, an LED die, a transparent conductive layer and at least one pad. The LED die includes a p-type GaN layer connected to the base, an active layer on the p-type GaN layer, and an n-type GaN layer on the active layer. The transparent conductive layer is coated on an exposed side of the n-type GaN layer. The exposed side has an arched central portion, which in one embodiment is concave and in another embodiment is convex. The at least one n-side pad is mounted on the transparent conductive layer. The at least one n-side pad and the conductive base are for connecting with a power source.Type: GrantFiled: June 28, 2010Date of Patent: August 28, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Chih-Chen Lai
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Patent number: 8143698Abstract: A problem of an increased manufacturing cost is caused in conventional semiconductor devices. A semiconductor device 1 includes: a lower electrode 102 provided on a semiconductor substrate 101; an insulating film 105, provided on the lower electrode 102 so as to be in contact with the lower electrode 102; an upper electrode 103, provided on the insulating film 105 so as to be in contact with the insulating film 105; an opening portion 121, provided in the lower electrode 102 and extending through the lower electrode 102; and an opening portion 122, provided in the upper electrode 103 and extending through the upper electrode 103. The insulating film 123 is embedded in the opening portion 121 that is provided in the lower electrode 102. Similarly, the insulating film 124 is embedded in the opening portion 122 that is provided in the upper electrode 103.Type: GrantFiled: August 4, 2009Date of Patent: March 27, 2012Assignee: Renesas Electronics CorporationInventor: Chikashi Yoshinaga
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Patent number: 8129251Abstract: A METAL-INSULATOR-METAL structured capacitor is formed with polysilicon instead of an oxide film as a sacrificial layer material that defines a storage electrode region. A MPS (Meta-stable Poly Silicon) process is performed to increase the surface area of the sacrificial layer that defines the storage electrode region and also increase the area of the storage electrode formed over sacrificial layer. This process results in increasing the capacity of the capacitor in a stable manner.Type: GrantFiled: November 13, 2006Date of Patent: March 6, 2012Assignee: Hynix Semiconductor Inc.Inventor: Won Sun Seo
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Publication number: 20120032302Abstract: Semiconductor devices (100) and methods of making the same. Each of the semiconductor devices includes a substrate (102) having a first surface (118) and an opposing second surface. A vertical capacitive element (104) is disposed on the first surface of the substrate. The vertical capacitive element comprises a plurality of parallel conductive plates (120b, 120d, 120f, 120h, 120j, 120l, 120n) extending transverse to the first surface of the substrate. Adjacent conductive plates are spaced a distance D from each other. A dielectric material (104) can be disposed in a space separating the adjacent conductive plates. Each of the conductive plates has a height-to-width (h/w) ratio greater than or equal to one.Type: ApplicationFiled: August 4, 2010Publication date: February 9, 2012Applicant: Harris CorporationInventor: David M. Smith
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Patent number: 8080474Abstract: The present invention provides a method for making an electrode. Firstly, a conducting substrate is provided. Secondly, a plurality of nano-sized structures is formed on the conducting substrate by a nano-imprinting method. Thirdly, a coating is formed on the nano-sized structures. The nano-sized structures are configured for increasing specific surface area of the electrode.Type: GrantFiled: June 1, 2009Date of Patent: December 20, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Ga-Lane Chen
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Patent number: 8080483Abstract: A method of forming a nanoporous film is disclosed. The method comprises forming a coating solution including clusters, surfactant molecules, a solvent, and one of an acid catalyst and a base catalyst. The clusters comprise inorganic groups. The method further comprises aging the coating solution for a time period to select a predetermined phase that will self-assemble and applying the coating solution on a substrate. The method further comprises evaporating the solvent from the coating solution and removing the surfactant molecules to yield the nanoporous film.Type: GrantFiled: November 1, 2007Date of Patent: December 20, 2011Assignee: Purdue Research FoundationInventors: Hugh W. Hillhouse, Vikrant N. Urade, Ta-Chen Wei, Michael P. Tate
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Patent number: 8062950Abstract: A semiconductor device has a semiconductor substrate, and a capacitor which is provided on the upper side of the semiconductor substrate and composed of a lower electrode, an upper electrode and a dielectric film, the dielectric film being placed in between the lower electrode and the upper electrode, the lower electrode including a noble metal film, and a plurality of conductive oxide films formed in an islands arrangement on the noble metal film.Type: GrantFiled: September 2, 2010Date of Patent: November 22, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Koji Yamakawa, Soichi Yamazaki
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Patent number: 7868338Abstract: A liquid crystal display array board includes a plurality of gate wiring lines formed on a substrate and a plurality of data wiring lines crossing the plurality of gate wiring lines, a plurality of thin film transistors formed in areas defined by crossings of the gate wiring lines and the data wiring lines, a plurality of storage capacitor first electrodes that run parallel to the gate wiring lines and patterned to have concavo-convex patterns, a plurality of storage capacitor second electrodes integrated with the drain electrodes of the thin film transistors and formed on the storage capacitor first electrodes, and a plurality of pixel electrodes electrically connected to the drain electrodes.Type: GrantFiled: September 12, 2006Date of Patent: January 11, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Do Young Kim, Hae Jin Heo
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Patent number: 7855087Abstract: This sheet production apparatus comprises a vessel defining a channel configured to hold a melt. The melt is configured to flow from a first point to a second point of the channel. A cooling plate is disposed proximate the melt and is configured to form a sheet on the melt. A spillway is disposed at the second point of the channel. This spillway is configured to separate the sheet from the melt.Type: GrantFiled: March 12, 2009Date of Patent: December 21, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Peter L. Kellerman, Frank Sinclair
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Patent number: 7838919Abstract: The capacitor structure includes a first electrode having a plurality of teeth protruding in a comb shape from an electrode base of a first electrode line and a second electrode having a plurality of teeth protruding in a comb shape from an electrode base of a second electrode line, both formed in a first wiring layer. The first and second electrodes face each other with their teeth interdigitated with each other via a dielectric. At least one of the teeth of the first electrode is electrically connected with a third electrode line formed in a second wiring layer.Type: GrantFiled: March 27, 2008Date of Patent: November 23, 2010Assignee: Panasonic CorporationInventors: Kiyomi Okamoto, Tetsurou Sugioka, Kazuki Adachi
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Patent number: 7816153Abstract: A dislocation-free sheet may be formed from a melt. A sheet of material with a first width is formed on a melt of the material using a cooling plate. This sheet has dislocations. The sheet is transported with respect to the cooling plate and the dislocations migrate to an edge of the sheet. The first width of the sheet is increased to a second width by the cooling plate. The sheet does not have dislocations at the second width. The cooling plate may have a shape with two different widths in one instance. The cooling plate may have segments that operate at different temperatures to increase the width of the sheet in another instance. The sheet may be pulled or flowed with respect to the cooling plate.Type: GrantFiled: June 4, 2009Date of Patent: October 19, 2010Assignee: Varian Semiconductor Equipment Associates, Inc.Inventors: Peter L. Kellerman, Frank Sinclair, Frederick Carlson, Nicholas P. T. Bateman, Robert J. Mitchell
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Patent number: RE46882Abstract: A semiconductor device comprises a memory cell region, a peripheral circuit region and a boundary region. In the memory cell region, a concave lower electrode and a foundation layer have a same uppermost surface positioned in a height of H above the plane-A. In the boundary region, one concave lower conductive region and a foundation layer have a same uppermost surface positioned in a height of H above the plane-A.Type: GrantFiled: November 12, 2014Date of Patent: May 29, 2018Assignee: Longitude Semiconductor S.a.r.l.Inventors: Yoshitaka Nakamura, Kenji Komeda, Ryota Suewaka, Noriaki Ikeda