Patents Examined by Mohammad M Choudhry
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Patent number: 11444163Abstract: Embodiments of memory devices and fabrication methods thereof are disclosed. In an example, a memory device includes a substrate, a memory stack, and a channel structure. The memory stack includes interleaved conductor layers and dielectric layers over the substrate. The channel structure extends through the memory stack into the substrate and includes a functional layer that includes a tunneling layer of which a nitrogen weight percent is not greater than about 28%.Type: GrantFiled: April 28, 2020Date of Patent: September 13, 2022Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.Inventors: Song Liu, Chao Shen, Dejian Chen, Wenting Wang, Xinxin Huang, Zhiping Xu
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Patent number: 11437392Abstract: An illustrative device disclosed herein includes a first memory cell comprising a first memory gate positioned above an upper surface of a semiconductor substrate and a second memory cell comprising a second memory gate positioned above the upper surface of the semiconductor substrate. In this example, the device also includes a conductive select gate structure positioned above the upper surface of the semiconductor substrate between the first and second memory gates, wherein the conductive select gate structure is shared by the first and second memory cells.Type: GrantFiled: July 28, 2020Date of Patent: September 6, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Yongshun Sun, Eng Huat Toh, Shyue Seng Tan, Kiok Boone Elgin Quek
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Patent number: 11437401Abstract: A 3-dimensional flash memory device and methods of fabricating and driving the same are provided. The device includes: a channel layer extending over a substrate in a first direction perpendicular to a surface of the substrate; an information storing layer extending along a sidewall of the channel layer in the first direction; control gates each surrounding, the channel layer, with the information storing layer between the channel layer and the control gates; an insulating layer being between the control gates in the first direction and separating the control gates from each other; a fixed charge region disposed at an interface of the insulating layer and the information storing layer or in a portion of the information storing layer between the control gates in the first direction; and a doped region induced by the fixed charge region and disposed at a surface of the channel layer facing the fixed charge region.Type: GrantFiled: March 16, 2021Date of Patent: September 6, 2022Assignees: SK hynix Inc., SOGANG UNIVERSITY RESEARCH FOUNDATIONInventor: Woo Young Choi
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Patent number: 11417570Abstract: A wafer processing method for forming a modified layer within a wafer along planned dividing lines forms the modified layer within the wafer, positions a condensing point within the wafer or at the top surface of the wafer and applies a second laser beam while moving the condensing point in a thickness direction of the wafer, images reflected light, and determines the processed state of the wafer on the basis of a photographed image. The second laser beam is formed such that the sectional shape of the second laser beam in a plane perpendicular to the traveling direction of the second laser beam is asymmetric with respect to the modified layer.Type: GrantFiled: February 10, 2021Date of Patent: August 16, 2022Assignee: DISCO CORPORATIONInventors: Shunsuke Teranishi, Shuichiro Tsukiji, Yuki Ikku
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Patent number: 11417742Abstract: A memory cell includes a substrate. A first STI and a second STI are embedded within the substrate. The first STI and the second STI extend along a first direction. An active region is disposed on the substrate and between the first STI and the second STI. A control gate is disposed on the substrate and extends along a second direction. The first direction is different from the second direction. A tunneling region is disposed in the active region overlapping the active region. A first trench is embedded within the tunneling region. Two second trenches are respectively embedded within the first STI and the second STI. The control gate fills in the first trench and the second trenches. An electron trapping stack is disposed between the tunneling region and the control gate.Type: GrantFiled: March 31, 2021Date of Patent: August 16, 2022Assignee: UNITED MICROELECTRONICS CORP.Inventors: Chih-Hao Pan, Chi-Cheng Huang, Kuo-Lung Li, Szu-Ping Wang, Po-Hsuan Chen, Chao-Sheng Cheng
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Patent number: 11417741Abstract: The present disclosure relates to an integrated chip comprising a substrate having a first top surface disposed at a first height, a second top surface disposed at a second height that is less than the first height, and a connecting surface extending from the first top surface to the second top surface. A first source/drain region is disposed along the first top surface of the substrate. A second source/drain region is disposed along the second top surface of the substrate and is laterally separated from the first source/drain region by a channel region of the substrate. A gate structure is arranged between the first source/drain region and the second source/drain region. The gate structure extends from over the first top surface of the substrate to over the connecting surface of the substrate. The gate structure also extends below the first top surface of the substrate.Type: GrantFiled: November 20, 2020Date of Patent: August 16, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yong-Sheng Huang, Ming Chyi Liu
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Patent number: 11411118Abstract: Some embodiments include integrated memory. The integrated memory includes a first series of first conductive structures and a second series of conductive structures. The first conductive structures extend along a first direction. The second conductive structures extend along a second direction which crosses the first direction. Pillars of semiconductor material extend upwardly from the first conductive structures. Each of the pillars includes a lower source/drain region, an upper source/drain region, and a channel region between the lower and upper source/drain regions. The lower source/drain regions are coupled with the first conductive structures. Insulative material is adjacent sidewall surfaces of the pillars. The insulative material includes ZrOx, where x is a number greater than 0. The second conductive structures include gating regions which are spaced from the channel regions by at least the insulative material. Storage elements are coupled with the upper source/drain regions.Type: GrantFiled: September 10, 2020Date of Patent: August 9, 2022Assignee: Micron Technology, Inc.Inventors: Srinivas Pulugurtha, Litao Yang, Haitao Liu, Kamal M. Karda
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Patent number: 11411069Abstract: A semiconductor device including a switching element on a substrate, a pad isolation layer on the switching element, a conductive pad passing through the pad isolation layer and connected to the switching element, an insulating pattern on the pad isolation layer and having a height greater than a horizontal width, a lower electrode on side surfaces of the insulating pattern on side surfaces of the insulating pattern and in contact with the conductive pad, a capacitor dielectric layer on the lower electrode and having a monocrystalline dielectric layer and a polycrystalline dielectric layer, the monocrystalline dielectric layer being relatively close to side surfaces of the insulating pattern compared to the polycrystalline dielectric layer an upper electrode on the capacitor dielectric layer may be provided.Type: GrantFiled: September 24, 2020Date of Patent: August 9, 2022Assignees: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Sang Yeol Kang, Kyu Ho Cho, Han Jin Lim, Cheol Seong Hwang
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Patent number: 11398579Abstract: A method for producing optoelectronic devices, including the following successive steps: providing a substrate having a first face; on the first face, forming sets of light-emitting diodes including wire-like, conical or frustoconical semiconductor elements; covering all of the first face with a layer encapsulating the light-emitting diodes; forming a conductive element that is insulated from the substrate and extends through the substrate from the second face to at least the first face; reducing the thickness of the substrate; and cutting the resulting structure in order to separate each set of light-emitting diodes.Type: GrantFiled: June 19, 2018Date of Patent: July 26, 2022Assignees: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, AlediaInventors: Christophe Bouvier, Emilie Pougeoise, Xavier Hugon, Carlo Cagli, Tiphaine Dupont, Philippe Gibert, Nacer Aitmani, Vincent Beix, Thomas Lacave, Marion Volpert, Olivier Girard, Denis Renaud, Brigitte Soulier
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Patent number: 11393732Abstract: A method for manufacturing an electrical performance test structure of packaged chip, and a method for testing electrical performance of packaged chip, including: providing a first wafer and a second wafer, forming a top metal layer on the first wafer and the second wafer respectively, forming bumps on part of the top metal layer of the first wafer and on part of the top metal layer of the second wafer respectively, removing the top metal layer that is not directly beneath the bumps in the first wafer, and completely retaining the top metal layer in the second wafer, and packaging the first wafer to a first die and packaging the second wafer to a second die, wherein the second die is used as a test structure, and the electrical performance of the second die is used as a reference for electrical performance of the first die.Type: GrantFiled: May 15, 2020Date of Patent: July 19, 2022Assignee: MONTAGE TECHNOLOGY (KUNSHAN) CO., LTD.Inventors: Meng Mei, Gang Shi, Peichun Wang, Guangfeng Li
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Patent number: 11393786Abstract: A method for manufacturing electronic chips includes depositing, on a side of an upper face of a semiconductor substrate, in and on which a plurality of integrated circuits has been formed, a protective resin. The method includes forming, in the protective resin, at least one cavity per integrated circuit, in contact with an upper face of the integrated circuit. Metal connection pillars are formed by filling the cavities with metal. The integrated circuits are separated into individual chips by cutting the protective resin along cut lines extending between the metal connection pillars.Type: GrantFiled: December 3, 2020Date of Patent: July 19, 2022Assignee: STMicroelectronics (Tours) SASInventors: Ludovic Fallourd, Christophe Serre
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Patent number: 11393785Abstract: A method for manufacturing electronic chips includes forming, on a side of an upper face of a semiconductor substrate, in and on which a plurality of integrated circuits has been formed, trenches laterally separating the integrated circuits. At least one metal connection pillar per integrated circuit is deposited on the side of the upper face of the substrate, and a protective resin extends in the trenches and on an upper face of the integrated circuits. The method further includes forming, from an upper face of the protective resin, openings located across from the trenches and extending over a width greater than or equal to that of the trenches, so as to clear a flank of at least one metal pillar of each integrated circuit. The integrated circuits are separated into individual chips by cutting.Type: GrantFiled: December 2, 2020Date of Patent: July 19, 2022Assignee: STMicroelectronics (Tours) SASInventors: Ludovic Fallourd, Christophe Serre
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Patent number: 11380802Abstract: To reduce defects in an oxide semiconductor film in a semiconductor device. To improve electrical characteristics of and reliability in the semiconductor device including an oxide semiconductor film. A method for manufacturing a semiconductor device includes the steps of forming a gate electrode and a gate insulating film over a substrate, forming an oxide semiconductor film over the gate insulating film, forming a pair of electrodes over the oxide semiconductor film, forming a first oxide insulating film over the oxide semiconductor film and the pair of electrodes by a plasma CVD method in which a film formation temperature is 280° C. or higher and 400° C. or lower, forming a second oxide insulating film over the first oxide insulating film, and performing heat treatment at a temperature of 150° C. to 400° C. inclusive, preferably 300° C. to 400° C. inclusive, further preferably 320° C. to 370° C. inclusive.Type: GrantFiled: January 28, 2021Date of Patent: July 5, 2022Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Junichi Koezuka, Yukinori Shima, Suzunosuke Hiraishi, Kenichi Okazaki
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Patent number: 11380649Abstract: The present disclosure provides a fan-out wafer-level packaging structure and a method for packaging the same. The structure includes: two or more semiconductor chips with a bonding pad, the semiconductor chips are arranged in a fan-out wafer array, and each of the semiconductor chips has an initial position, respectively; a plastic packaging layer, covering surfaces of the semiconductor chips and between the semiconductor chips, each of the semiconductor chips has an offset position, respectively, and the offset position has an offset distance relative to the initial position; a redistribution layer formed on the semiconductor chips, to realize interconnection between the semiconductor chips, the redistribution layer includes at least one first redistribution layer, the first redistribution layer is formed on a surface of the semiconductor chips and is aligned and in contact with the bonding pad of the semiconductor chips; and a metal bump formed on the redistribution layer.Type: GrantFiled: March 19, 2021Date of Patent: July 5, 2022Assignee: SJ SEMICONDUCTOR (JIANGYIN) CORPORATIONInventor: Hailin Zhao
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Patent number: 11380583Abstract: A semiconductor device includes a first trench on a mandrel line through a top mask layer and stopping at a middle mask layer; and a second trench on a non-mandrel line through the top mask layer and stopping at the middle mask layer. A spacer material is removed from a structure resulting from etching the first trench and the second trench. The device includes a first via structure, formed using a removable material, in the first trench; a second via structure, formed using a removable material, in the second trench; an air-gap formed in a third trench created at a location of the spacer; a fourth trench formed by etching, to remove the first via structure and a first portion of a bottom mask layer under the first via structure; and a self-aligned line-end via on the mandrel line formed by filling the fourth trench with a conductive metal.Type: GrantFiled: February 22, 2021Date of Patent: July 5, 2022Assignee: TESSERA LLCInventors: Lawrence A. Clevenger, Carl J. Radens, John H. Zhang
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Patent number: 11373916Abstract: A method includes preparing an electronic component that includes an element plate including an element region provided with a functional element and a peripheral region disposed around the element region, a counter plate facing the element region and the peripheral region, a first resin member disposed between at least one of the element region and the peripheral region and the counter plate, and a second resin member disposed between the peripheral region and the counter plate, applying light to the element plate through the counter plate and the second resin member, and measuring a gap between the counter plate and the element plate based on light reflected between the element plate and the second resin member and light reflected between the counter plate and the second resin member.Type: GrantFiled: June 11, 2020Date of Patent: June 28, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Kunihito Ide
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Patent number: 11367656Abstract: Provided is a wafer processing method for dividing a wafer having devices formed on a front side thereof into individual device chips, the front side being partitioned by a plurality of crossing division lines having a testing metal pattern formed in part thereof into a plurality of regions where the respective devices are formed. The method includes a first modified layer forming step of applying a laser beam of a wavelength having a transmitting property to the wafer with a focal point of the laser beam positioned inside the wafer at a first depth from the back side, thereby forming a first modified layer along a division line, and a second modified layer forming step of applying the laser beam with the focal point positioned at a second depth shallower than the first depth, thereby forming a second modified layer along the same division line.Type: GrantFiled: February 5, 2021Date of Patent: June 21, 2022Assignee: DISCO CORPORATIONInventor: Masaru Nakamura
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Patent number: 11361998Abstract: A method for manufacturing an electronic device is provided. The method includes the following steps: providing a first mother substrate including a plurality of first substrate areas; performing a first half-cutting step on the first mother substrate to produce a first crack to define the plurality of first substrate areas; disposing a first optical film on the first mother substrate having the first crack, wherein the first optical film has a first cutting region corresponding to the first crack; performing a first cutting step in the first cutting region of the first optical film; and separating the plurality of first substrate areas to form a plurality of first substrates.Type: GrantFiled: June 18, 2020Date of Patent: June 14, 2022Assignee: INNOLUX CORPORATIONInventors: I-Chang Liang, Chien-Lin Lin, Chin-Lung Ting
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Patent number: 11362012Abstract: In a semiconductor device, a first protection film covers an end portion of a first metal layer disposed on a semiconductor substrate, and has a first opening above the first metal layer. A second metal layer is disposed on the first metal layer in the first opening. An oxidation inhibition layer is disposed on the second metal layer in the first opening. A second protection film has a second opening and covers an end portion of the oxidation inhibition layer and the first protection film. The second protection film has an opening peripheral portion on a periphery of the second opening, and covers the end portion of the oxidation inhibition layer. An adhesion portion adheres to a portion of a lower surface of the opening peripheral portion. The adhesion portion has a higher adhesive strength with the second protection film than the oxidation inhibition layer.Type: GrantFiled: October 15, 2020Date of Patent: June 14, 2022Assignee: DENSO CORPORATIONInventor: Yasushi Okura
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Patent number: 11362102Abstract: A semiconductor device includes a substrate having thereon at least one active area and at least one trench isolation region adjacent to the at least one active area. A charge trapping structure is disposed on the at least one active area and at least one trench isolation region. At least one divot is disposed in the at least one trench isolation region adjacent to the charge trapping structure. A silicon oxide layer is disposed in the at least one divot. A gate oxide layer is disposed on the at least one active area around the charge trapping structure.Type: GrantFiled: February 26, 2021Date of Patent: June 14, 2022Assignee: UNITED MICROELECTRONICS CORP.Inventor: Chia-Wen Wang