Patents Issued in March 18, 2021
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Publication number: 20210082901Abstract: Techniques herein include methods for fabricating high density logic and memory for advanced circuit architecture. The methods can include forming multilayer stacks on separate substrates and forming bonding films over the multilayer stacks, then contacting and bonding the bonding films to form a combined structure including each of the multilayer stacks. The method can be repeated to form additional combinations. In between iterations, transistor devices may be formed from the combined structures. Ionized atom implantation can facilitate cleavage of a substrate destined for growth of additional multilayers, wherein an anneal weakens the substrate at a predetermined penetration depth of the ionized atom implantation.Type: ApplicationFiled: April 21, 2020Publication date: March 18, 2021Applicant: Tokyo Electron LimitedInventors: Mark I. GARDNER, H. Jim Fulford, Jeffrey Smith, Lars Liebmann, Daniel Chanemougame
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Publication number: 20210082902Abstract: A capacitive element using VNW FETs is provided. First and second components each constituting a transistor are arranged in an X direction. From the first component, a first gate interconnect extends away from the second component, and a first top interconnect and a first bottom interconnect extend toward the second component. From the second component, a second gate interconnect extends toward the first component, and a second top interconnect and a second bottom interconnect extend away from the first component. The first top interconnect, the first bottom interconnect, and the second gate interconnect are connected.Type: ApplicationFiled: November 9, 2020Publication date: March 18, 2021Inventor: Isaya Sobue
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Publication number: 20210082903Abstract: A method is disclosed, including the following operations: arranging a first gate structure extending continuously above a first active region and a second active region of a substrate; arranging a first separation spacer disposed on the first gate structure to isolate an electronic signal transmitted through a first gate via and a second gate via that are disposed on the first gate structure, in which the first gate via and the second gate via are arranged above the first active region and the second active region respectively; and arranging a first local interconnect between the first active region and the second active region, in which the first local interconnect is electrically coupled to a first contact disposed on the first active region and a second contact disposed on the second active region.Type: ApplicationFiled: November 6, 2020Publication date: March 18, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Charles Chew-Yuen YOUNG, Chih-Liang CHEN, Chih-Ming LAI, Jiann-Tyng TZENG, Shun-Li CHEN, Kam-Tou SIO, Shih-Wei PENG, Chun-Kuang CHEN, Ru-Gun LIU
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Publication number: 20210082904Abstract: A semiconductor device includes a first fin, a first continuous fin and continuous gates. The first fin is formed on a substrate, and includes first and second portions that are spaced apart by a first recess. A side of the first portion and a side of the second portion are located at two sides of the first recess, respectively. The first continuous fin is formed on the substrate, and extends along the first portion, the first recess and the second portion. The continuous gates are formed on the substrate, and arranged to intersect the first continuous fin and the first fin in a layout view. A first number of the continuous gates are disposed across the first recess and each of the first number of the continuous gates is disposed between the two sides of the first recess in a layout view. A method is also disclosed herein.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Cheng-I HUANG, Ting-Wei CHIANG, Shih-Chi FU, Sheng-Fang CHENG, Jung-Chan YANG
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Publication number: 20210082905Abstract: An ESD protection device may include a substrate, a first conductivity region arranged at least partially within the substrate, a second conductivity region arranged at least partially within the first conductivity region, third and fourth conductivity regions arranged at least partially within the second conductivity region, and first and second terminal portions arranged at least partially within the third and fourth conductivity regions respectively. The third and fourth conductivity regions may be spaced apart from each other. The substrate and the second conductivity region may have a first conductivity type. The first conductivity region, third conductivity region, fourth conductivity region and first and second terminal portions may have a second conductivity type different from the first conductivity type. The first and second terminal portions may have higher doping concentrations than the third and fourth conductivity regions respectively.Type: ApplicationFiled: September 18, 2019Publication date: March 18, 2021Inventors: Jie ZENG, Raunak KUMAR, Kyong Jin HWANG
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Publication number: 20210082906Abstract: A semiconductor device includes a first diode, a second diode, a clamp circuit and a third diode. The first diode is coupled between an input/output (I/O) pad and a first voltage terminal. The second diode is coupled with the first diode, the I/O pad and a second voltage terminal. The clamp circuit is coupled between the first voltage terminal and the second voltage terminal. The second diode and the clamp circuit are configured to direct a first part of an electrostatic discharge (ESD) current flowing between the I/O pad and the first voltage terminal. The third diode, coupled to the first voltage terminal, and the second diode include a first semiconductor structure configured to direct a second part of the ESD current flowing between the I/O pad and the first voltage terminal.Type: ApplicationFiled: September 18, 2019Publication date: March 18, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Po-Lin PENG, Li-Wei CHU, Ming-Fu TSAI, Jam-Wem LEE, Yu-Ti SU
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Publication number: 20210082907Abstract: An Electro-Static Discharge (ESD) includes a first well having a first conductivity type on a substrate. The device further includes a second well within the first well. The second well has a second conductivity type. The device further includes a third well within the first well. The third well has the second conductivity type. The device further includes a first gate device disposed over the first well, a plurality of active regions between the first gate device and the dummy gate, and a dummy gate disposed within a space between the active regions. The dummy gate is positioned over a space between the second and third wells.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Wun-Jie Lin, Han-Jen Yang, Yu-Ti Su
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Publication number: 20210082908Abstract: A semiconductor storage device includes a circuit region formed on a semiconductor substrate, and a guard ring region spaced from one side of the circuit region by a predetermined distance. The guard ring region extends in a first direction, the first direction being a direction in which the one side of the circuit region extends, includes a guard ring line, an element isolation region, a first defect trapping layer, a second defect trapping layer. The first defect trapping layer extends from a boundary location between the circuit region and the element isolation region to a location spaced from a boundary location between the element isolation region and the guard ring line by an offset distance toward the element isolation region in the second direction.Type: ApplicationFiled: July 24, 2020Publication date: March 18, 2021Applicant: KIOXIA CORPORATIONInventor: Takehiro NAKAI
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Publication number: 20210082909Abstract: A semiconductor system includes a control device, and a semiconductor apparatus coupled with the control device through a first line and a second line. A loading of the second line is greater than a loading of the first line, wherein the semiconductor apparatus includes a first receiving circuit which is electrically coupled with the first line and a second receiving circuit which is electrically coupled with the second line. Further a loading between the first line and the first receiving circuit is greater than a loading between the second line and the second receiving circuit.Type: ApplicationFiled: December 1, 2020Publication date: March 18, 2021Applicant: SK hynix Inc.Inventors: Joong-Ho KIM, Hyun Woo KWACK, Ki Jong LEE, Doo Bock LEE
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Publication number: 20210082910Abstract: A 3D semiconductor device, the device comprising: a first level, wherein said first level comprises a first layer, said first layer comprising first transistors, and wherein said first level comprises a second layer comprising first interconnections; a second level overlaying said first level, wherein said second level comprises a third layer, said third layer comprising second transistors, and wherein said second level comprises a fourth layer comprising second interconnections; and a plurality of connection paths, wherein said plurality of connection paths provides connections from a plurality of said first transistors to a plurality of said second transistors, wherein said second level is bonded to said first level, wherein said bonded comprises oxide to oxide bond regions and metal to metal bond regions, wherein said second level comprises at least one memory array, wherein said third layer comprises crystalline silicon, and wherein said second level comprises at least one SerDes circuit.Type: ApplicationFiled: October 6, 2020Publication date: March 18, 2021Applicant: Monolithic 3D Inc.Inventors: Zvi Or-Bach, Brian Cronquist
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Publication number: 20210082911Abstract: A 3D semiconductor structure includes a buffer layer, a n-type high electron mobility transistor (HEMT) disposed on a first surface of the buffer layer, and a p-type high hole mobility transistor (HHMT) disposed on a second surface of the buffer layer opposite to the first surface.Type: ApplicationFiled: October 9, 2019Publication date: March 18, 2021Inventors: Yung-Chen Chiu, Sheng-Yuan Hsueh, Kuo-Hsing Lee, Chien-Liang Wu, Chih-Kai Kang, Guan-Kai Huang
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Publication number: 20210082912Abstract: An active region has first and second cell regions respectively disposed in a main IGBT and a sensing IGBT. The second cell region has a detecting region in which the sensing IGBT is disposed and an extracting region that surrounds a periphery of the detecting region. A resistance region containing polysilicon and connected to the sensing IGBT is provided on the semiconductor substrate, in the extracting region. The resistance region connected to the sensing IGBT has a first portion connected to the gate electrodes of the sensing IGBT and a second portion connecting the first portion to the gate runner, and configures a built-in resistance of the second portion having a resistance value in a range from 10? to 5000?. As a result, a trade-off relationship between enhancing ESD tolerance of a current sensing region that includes the sensing IGBT and reducing transient sensing voltage may be improved.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: FUJI ELECTRIC CO., LTD.Inventor: Tohru SHIRAKAWA
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Publication number: 20210082913Abstract: Certain aspects of the present disclosure generally relate to a single diffusion break having a conductive portion. An example semiconductor device generally includes a first semiconductor region, a second semiconductor region, a dielectric region, and a single diffusion break (SDB). The dielectric region is disposed between the first semiconductor region and the second semiconductor region. The SDB intersects at least one of the first semiconductor region or the second semiconductor region, and the SDB comprises an electrically conductive portion.Type: ApplicationFiled: September 13, 2019Publication date: March 18, 2021Inventor: Haining YANG
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Publication number: 20210082914Abstract: An integrated circuit device includes a fin-type active region protruding from a substrate and extending in a first direction, a plurality of semiconductor patterns disposed apart from an upper surface of the fin-type active region, the plurality of semiconductor patterns each including a channel region; a gate electrode surrounding the plurality of semiconductor patterns, extending in a second direction perpendicular to the first direction, and including a main gate electrode, which is disposed on an uppermost semiconductor pattern of the plurality of semiconductor patterns and extends in the second direction, and a sub-gate electrode disposed between the plurality of semiconductor patterns; a spacer structure disposed on both sidewalls of the main gate electrode; and a source/drain region connected to the plurality of semiconductor patterns, disposed at both sides of the gate electrode, and contacting a bottom surface of the spacer structure.Type: ApplicationFiled: April 7, 2020Publication date: March 18, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Seungryul LEE, Yongseung KIM, Jungtaek KIM, Pankwi PARK, Dongchan SUH, Moonseung YANG, Seojin JEONG, Minhee CHOI, Ryong HA
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Publication number: 20210082915Abstract: A device is provided. The device includes an interfacial layer on a semiconductor device channel. The device further includes a dipole layer on the interfacial layer, and a gate dielectric layer on the dipole layer. The device further includes a first work function layer associated with a first field effect transistor device; and a second work function layer associated with a second field effect transistor device, such that the first field effect transistor device and second field effect transistor device each have a different threshold voltage than a first field effect transistor device and second field effect transistor device without a dipole layer.Type: ApplicationFiled: September 17, 2019Publication date: March 18, 2021Inventors: Ruqiang Bao, Koji Watanabe
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Publication number: 20210082916Abstract: According to one embodiment, a semiconductor device includes: a first well region of N-type and a second well region of P-type; a PMOS transistor provided in the first well region; and an NMOS transistor provided in the second well region. The PMOS transistor includes a first gate insulating layer and a first gate electrode. The NMOS transistor includes a second gate insulating layer and a second gate electrode. The first gate electrode includes a first semiconductor layer of P-type, a first insulating layer, and a first conductive layer. The second gate electrode includes a second semiconductor layer of N-type, a second insulating layer, and a second conductive layer. A film thickness of the first insulating layer is thicker than a film thickness of the second insulating layer.Type: ApplicationFiled: March 13, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Tomoya INDEN
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Publication number: 20210082917Abstract: A semiconductor device includes first and second active patterns on first and second active regions of a substrate, respectively, a pair of first source/drain patterns and a first channel pattern therebetween which are in an upper portion of the first active pattern, a pair of second source/drain patterns and a second channel pattern therebetween which are in an upper portion of the second active pattern, and first and second gate electrodes intersecting the first and second channel patterns, respectively. Each of the first and second gate electrodes includes a first metal pattern adjacent to a corresponding one of the first and second channel patterns. The first and second channel patterns include SiGe. A Ge concentration of the second channel pattern is higher than a Ge concentration of the first channel pattern. A thickness of the first metal pattern of the second gate electrode is greater than a thickness of the first metal pattern of the first gate electrode.Type: ApplicationFiled: April 6, 2020Publication date: March 18, 2021Inventors: JONGHO PARK, JAEYEOL SONG, WANDON KIM, BYOUNGHOON LEE, MUSARRAT HASAN
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Publication number: 20210082918Abstract: A method of manufacturing a semiconductor device is provided. A substrate is provided. The substrate has a first region and a second region. An n-type work function layer is formed over the substrate in the first region but not in the second region. A p-type work function layer is formed over the n-type work function layer in the first region, and over the substrate in the second region. The p-type work function layer directly contacts the substrate in the second region. And the p-type work function layer includes a metal oxide.Type: ApplicationFiled: September 17, 2019Publication date: March 18, 2021Inventors: Chung-Liang Cheng, Ziwei Fang
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Publication number: 20210082919Abstract: A method of forming a semiconductor device includes etching a substrate to form two first trenches separated by a fin; filling the two first trenches with an isolation layer; and depositing a dielectric layer over the fin and the isolation layer. The method further includes forming a second trench in the dielectric layer over a channel region of the semiconductor device, the second trench exposing the isolation layer. The method further includes etching the isolation layer through the second trench to expose an upper portion of the fin in the channel region of the semiconductor device, and forming a dummy gate in the second trench over the isolation layer and engaging the upper portion of the fin.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Hung-Li Chiang, Cheng-Yi Peng, Tsung-Yao Wen, Yee-Chia Yeo, Yen-Ming Chen
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Publication number: 20210082920Abstract: A semiconductor device having high operation frequency is provided. The semiconductor device includes a transistor including a first conductive layer, a first insulating layer, a second insulating layer, a first oxide, a second oxide, a third oxide, a third insulating layer, and a second conductive layer that are stacked in this order, and a fourth insulating layer. The first conductive layer and the second conductive layer include a region overlapping with the second oxide. In a channel width direction of the transistor, a level of the bottom surface of the second oxide is from more than or equal to ?5 nm to less than 0 nm when a level of a region of the bottom surface of the second conductive layer which does not overlap with the second oxide is regarded as a reference.Type: ApplicationFiled: January 15, 2019Publication date: March 18, 2021Inventors: Yusuke NONAKA, Noritaka ISHIHARA, Tomoki HIRAMATSU, Ryunosuke HONDA, Tomoyo KAMOGAWA, Ryota HODO, Katsuaki TOCHIBAYASHI, Shunpei YAMAZAKI
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Publication number: 20210082921Abstract: According to one embodiment, a semiconductor storage device includes a plurality of first wires extending in a first direction, a plurality of second wires extending in a second direction intersecting the first direction, and a plurality of first semiconductor transistors. Each first semiconductor transistor is respectively connected between one of the plurality of first wires and one of the plurality of second wires. Each first semiconductor transistor includes a gate electrode connected to the respective first wire and a channel layer on a first surface of the second wire and also a side surface of the respective second wire.Type: ApplicationFiled: February 27, 2020Publication date: March 18, 2021Inventors: Masaharu WADA, Keiji IKEDA
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Publication number: 20210082922Abstract: The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The semiconductor device includes a substrate; a plurality of capacitor contacts positioned over the substrate, at least one of the plurality of capacitor contacts having a neck portion and a head portion over the neck portion, wherein an upper width of the head portion is larger than an upper width of the neck portion; a plurality of bit line contacts positioned over the substrate and a plurality of bit lines positioned over the plurality of bit line contacts, wherein at least one of the plurality of bit line is a wavy line extending between two adjacent capacitor contacts; and a capacitor structure positioned over the head portion.Type: ApplicationFiled: September 13, 2019Publication date: March 18, 2021Inventor: Chih-Wei Huang
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Publication number: 20210082923Abstract: A semiconductor device, a method of fabricating the semiconductor device and a memory are disclosed. In the provided semiconductor device, bit line contact plugs partially reside on insulating material layers in gate trenches in active areas and thus can come into sufficient contact with the active areas. This ensures good electrical transmission between the bit line contact plugs and the active areas even when there are internal voids in the bit line contact plugs. Such bit line contact plugs allowed to contain internal voids can be fabricated in an easier and faster manner, thus allowing a significantly enhanced memory fabrication throughput.Type: ApplicationFiled: December 11, 2019Publication date: March 18, 2021Inventors: Shi-Wei HE, Te-Hao HUANG, Hsien-Shih CHU, Yun-Fan CHOU, Feng-Ming HUANG
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Publication number: 20210082924Abstract: A semiconductor memory device includes a substrate having a memory cell region, a peripheral region, and a dam region between the memory cell region and the peripheral region, the memory cell region having a rectangular shape according to a top view and having a plurality of active regions defined therein; a plurality of bit line structures extending on the substrate in the memory cell region to be parallel with each other in a first horizontal direction, each including a bit line; a plurality of buried contacts filling lower portions of spaces among the plurality of bit line structures on the substrate; a plurality of landing pads on the plurality of buried contacts; and a dam structure including a first dam structure and a second dam structure in the dam region and being at the same level as the plurality of landing pads.Type: ApplicationFiled: May 4, 2020Publication date: March 18, 2021Inventors: Hyejin SEONG, Jisuk PARK, Sungho CHOI
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Publication number: 20210082925Abstract: A semiconductor device includes a layer having a semiconductive material. The layer includes an outwardly-protruding fin structure. An isolation structure is disposed over the layer but not over the fin structure. A first spacer and a second spacer are each disposed over the isolation structure and on sidewalls of the fin structure. The first spacer is disposed on a first sidewall of the fin structure. The second spacer is disposed on a second sidewall of the fin structure opposite the first sidewall. The second spacer is substantially taller than the first spacer. An epi-layer is grown on the fin structure. The epi-layer protrudes laterally. A lateral protrusion of the epi-layer is asymmetrical with respect to the first side and the second side.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Chun Po Chang, Chen-Ming Lee, Fu-Kai Yang, Mei-Yun Wang, Wei-Yang Lee, Tzu-Hsiang Hsu
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Publication number: 20210082926Abstract: According to an embodiment, a semiconductor device has a first and second region, and a semiconductor channel. The first region includes a peak of a concentration profile of a first impurity of a first conductivity type. The first region extends from a surface of the substrate, through a depth range including the concentration profile of a second impurity of a second conductivity type, to a depth of an intersection of the concentration profile of the first impurity and the concentration profile of the second impurity. The second region includes a concentration profile of a third impurity, and the second region overlaps at least part of the first region. The concentration profile of the third impurity is higher in concentration than the concentration profile of the first impurity throughout a depth direction of the second region. One end of the semiconductor channel reaches the first and second region.Type: ApplicationFiled: March 9, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventors: Takayuki KAKEGAWA, Shinya Naito
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Publication number: 20210082927Abstract: A memory string is disclosed including a plurality of core cells serially connected between a source select gate and a drain select gate along a channel. Each core cell includes a wordline separated from the channel by a stack of layers including a charge trapping layer. At least one of the source and drain select gates is a stacked select gate with a plurality of components, including a first component adjacent to the plurality of core cells and a second component separated from the core cells by the first component. The first component includes a wordline separated from the channel by a stack of layers including a charge trapping layer, and a distance between the wordline of the first component and the wordline of a first core cell in the plurality of core cells is substantially the same as distances between each wordline in the plurality of word core cells.Type: ApplicationFiled: August 3, 2020Publication date: March 18, 2021Applicant: Cypress Semiconductor CorporationInventors: Ming Sang Kwan, Shenqing Fang, Youseok Suh, Michael A. VAN BUSKIRK
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Publication number: 20210082928Abstract: A semiconductor device includes a lower intermetal dielectric (IMD) layer, a middle conductive line, and a ferroelectric random access memory (FRAM) structure. The middle conductive line is embedded in the lower IMD layer. The FRAM structure is over the lower IMD layer and the middle conductive line. The FRAM structure includes a bottom electrode, a ferroelectric layer, and a top electrode. The bottom electrode is over the middle conductive line and in contact with the lower IMD layer. The ferroelectric layer is over the bottom electrode. The top electrode is over the ferroelectric layer.Type: ApplicationFiled: September 12, 2019Publication date: March 18, 2021Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Tzu-Yu CHEN, Sheng-Hung SHIH, Kuo-Chi TU, Wen-Ting CHU
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Publication number: 20210082929Abstract: A semiconductor device includes: a semiconductor substrate; a first transistor provided at an upper surface of the semiconductor substrate; and a first capacitor provided above the first transistor and connected to a gate of the first transistor. A tunnel current is able to flow between the gate and the semiconductor substrate.Type: ApplicationFiled: March 12, 2020Publication date: March 18, 2021Inventors: Shinji Kawahara, Takeshi Yamamoto, Kazuaki Yamaura, Nobuyuki Toda
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Publication number: 20210082930Abstract: A semiconductor device includes: a semiconductor substrate; a first semiconductor layer; a first conductor; a first power supply line; a second power supply line; and a circuit. The semiconductor substrate has a first surface, a second surface facing the first surface, and a third surface disposed between the first surface and the second surface. The first semiconductor layer is disposed along the first surface from the third surface. The first conductor is disposed on the first semiconductor layer. The first power supply line is electrically connected to the first conductor. The second power supply line is electrically connected to the semiconductor substrate. The circuit is disposed on the semiconductor substrate and connected to the first power supply line and the second power supply line.Type: ApplicationFiled: September 3, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Kimitoshi OKANO
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Publication number: 20210082931Abstract: Embodiments of three-dimensional (3D) memory devices having through array contacts (TACs) and methods for forming the same are disclosed. In an example, a method for forming a 3D memory device is disclosed. A dielectric stack including interleaved a plurality of dielectric layers and a plurality of sacrificial layers is formed above a substrate. A channel structure extending vertically through the dielectric stack is formed. A first opening extending vertically through the dielectric stack is formed. A spacer is formed in a plurality of shallow recesses and on a sidewall of the first opening. The plurality of shallow recesses abut the sidewall of the first opening. A TAC extending vertically through the dielectric stack is formed by depositing a conductor layer in contact with the spacer in the first opening. A slit extending vertically through the dielectric stack is formed.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Inventors: Mei Lan Guo, Yushi Hu, Ji Xia, Hongbin Zhu
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Publication number: 20210082932Abstract: Various embodiments of the present application are directed to an IC, and associated forming methods. In some embodiments, the IC comprises a memory region and a logic region integrated in a substrate. A memory cell structure is disposed on the memory region. A logic device is disposed on the logic region having a logic gate electrode separated from the substrate by a logic gate dielectric. A sidewall spacer is disposed along a sidewall surface of the logic gate electrode. A contact etch stop layer (CESL) is disposed along an upper surface of the substrate, extending upwardly along and in direct contact with sidewall surfaces of the pair of select gate electrodes within the memory region, and extending upwardly along the sidewall spacer within the logic region.Type: ApplicationFiled: November 25, 2020Publication date: March 18, 2021Inventors: Meng-Han Lin, Te-Hsin Chiu, Wei Cheng Wu
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Publication number: 20210082933Abstract: According to an embodiment, a semiconductor memory device includes a first conductive layer and second conductive layers arranged at intervals in a first direction above the first conductive layer. A semiconductor layer extends in the first direction in the second conductive layers to be in contact with the first conductive layer. A charge storage layer is between the semiconductor layer and the second conductive layers. A metal layer extends in the first direction and a second direction above the first conductive layer, and separates the second conductive layers. The device further includes an insulating layer. The insulating layer includes a portion between the metal layer and the first conductive layer and a portion between the metal layer and the second conductive layers.Type: ApplicationFiled: February 24, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Takamasa ITO
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Publication number: 20210082934Abstract: According to one embodiment, a semiconductor storage device includes: a single-crystal semiconductor substrate having a recessed surface; an under layer provided above the semiconductor substrate; a stacked body, provided over the under layer, that includes at least one conductive layer and at least one insulating layer alternately stacked on top of one another; a single-crystal semiconductor layer extending in a first direction perpendicular to the semiconductor substrate, penetrating the stacked body, and including a first end in contact with the recessed surface of the semiconductor substrate; and a memory film provided between the semiconductor layer and the at least one conductive layer. A crystal orientation of the semiconductor layer and a crystal orientation of the semiconductor substrate are the same.Type: ApplicationFiled: March 3, 2020Publication date: March 18, 2021Applicant: KIOXIA CORPORATIONInventor: Toshiyuki IWAMOTO
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Publication number: 20210082935Abstract: In one embodiment, a semiconductor storage device includes a substrate, a stacked film including a plurality of first insulating layers and a plurality of electrode layers that are alternately provided on the substrate, and a second insulating layer provided on the stacked film. The device further includes a plurality of pillar portions, each of which including a first insulator, a charge storage layer, a second insulator, a first semiconductor layer and a third insulator that are sequentially provided in the stacked film and the second insulating layer. Furthermore, a width of the second insulating layer sandwiched between the pillar portions is narrower than a width of the stacked film sandwiched between the pillar portions, in at least a portion of the second insulating layer.Type: ApplicationFiled: March 5, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Yasunori OSHIMA
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Publication number: 20210082936Abstract: Electronic devices and methods of forming the electronic devices are described. The electronic devices comprise a plurality of memory holes extending along a first direction through a plurality of alternating oxide and nitride layers. Each memory hole has a core oxide surrounded by a semiconductor material, the semiconductor material surrounded by a dielectric. The memory holes are staggered to provide a plurality of memory hole lines having spaced memory holes so that adjacent memory hole lines have the memory holes in a staggered configuration. A conductive material is on top of the stack of alternating oxide and nitride layers. A dielectric filled cut line extends through the conductive material in a direction across the plurality of memory hole lines. The dielectric filled cut line separates a first memory hole line from an adjacent second memory hole line without disabling the functionality of the memory holes.Type: ApplicationFiled: September 13, 2020Publication date: March 18, 2021Inventor: Takehito Koshizawa
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Publication number: 20210082937Abstract: Some embodiments include an integrated structure having a stack of alternating dielectric levels and conductive levels, and having vertically-stacked memory cells within the conductive levels. An opening extends through the stack. Channel material is within the opening and along the memory cells. At least some of the channel material contains germanium.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: Micron Technology, Inc.Inventors: Haitao Liu, Chandra Mouli, Sergei Koveshnikov, Dimitrios Pavlopoulos, Guangyu Huang
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Publication number: 20210082938Abstract: A single poly non-volatile memory device that includes: a first type lower well; first and second wells separately formed in an upper portion of the first type lower well; a source electrode, a selection transistor, a sensing transistor, and a drain electrode sequentially disposed in an upper portion of the first well. A control gate is formed in an upper portion of the second well with separated on an opposite side of the source electrode from the first well and connected to the gate of the sensing transistor.Type: ApplicationFiled: December 1, 2020Publication date: March 18, 2021Applicant: Key Foundry Co., Ltd.Inventors: Su Jin KIM, Hye Jin YOO
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Publication number: 20210082939Abstract: A first region includes a memory cell transistor. A second region is adjacent to the first region in a first direction, and includes first and second subregions aligned in a second direction. First members include a portion extending along the first direction, and are provided in the first subregion. The first members are arranged in such a manner that the first members aligned in the second direction in an n-th row and an (n+1)-th row, counted from a side of the second subregion, are shifted in the first direction. The first members adjacent to each other in the second direction are arranged in such a manner that portions extending in the first direction face each other.Type: ApplicationFiled: March 6, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Toru MATSUDA
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Publication number: 20210082940Abstract: According to one embodiment, a memory device includes a substrate; a structure including a plurality of conductive layers stacked on the substrate; and a pillar arranged inside the structure and including a semiconductor layer that extends in a direction perpendicular to a surface of the substrate. The semiconductor layer includes a first portion on a side of an upper portion of the structure, and a second portion between the first portion and the substrate. The first portion has a thickness larger than a thickness of the second portion.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventors: Yasuhiro UCHIMURA, Tatsufumi HAMADA, Shinichi SOTOME, Tomohiro KUKI, Yasunori OSHIMA, Osamu ARISUMI
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Publication number: 20210082941Abstract: A semiconductor memory device is disclosed. The device includes a peripheral circuit structure on a substrate, a semiconductor layer on the peripheral circuit structure, an electrode structure on the semiconductor layer, the electrode structure including electrodes stacked on the semiconductor layer, a vertical channel structure penetrating the electrode structure and being connected to the semiconductor layer, a separation structure penetrating the electrode structure, extending in a first direction, and horizontally dividing the electrode of the electrode structure into a pair of electrodes, an interlayered insulating layer covering the electrode structure, and a through contact penetrating the interlayered insulating layer and being electrically connected to the peripheral circuit structure.Type: ApplicationFiled: April 24, 2020Publication date: March 18, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Yong-Hoon SON, Jae Hoon KIM, Kwang-ho PARK, Hyunji SONG, Gyeonghee LEE, Seungjae JUNG
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Publication number: 20210082942Abstract: According to one embodiment, the array chip includes a three-dimensionally disposed plurality of memory cells and a memory-side interconnection layer connected to the memory cells. The circuit chip includes a substrate, a control circuit provided on the substrate, and a circuit-side interconnection layer provided on the control circuit and connected to the control circuit. The circuit chip is stuck to the array chip with the circuit-side interconnection layer facing to the memory-side interconnection layer. The bonding metal is provided between the memory-side interconnection layer and the circuit-side interconnection layer. The bonding metal is bonded to the memory-side interconnection layer and the circuit-side interconnection layer.Type: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: Toshiba Memory CorporationInventors: Yoshiaki FUKUZUMI, Hideaki AOCHI
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Publication number: 20210082943Abstract: According to an embodiment, a semiconductor memory device includes a semiconductor substrate, a control circuit arranged on the semiconductor substrate, and a memory cell array arranged above the control circuit. The memory cell array includes a plurality of three-dimensionally-arranged memory cells, and is controlled by the control circuit. A first nitride layer is arranged between the control circuit and the memory cell array, and a second nitride layer is arranged between the control circuit and the first nitride layer.Type: ApplicationFiled: February 21, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Kyungmin Jang
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Publication number: 20210082944Abstract: A semiconductor device includes a substrate, a logic circuit provided on the substrate, a wiring layer including a plurality of wirings that are provided above the logic circuit, a first insulating film below the wiring layer, a plug, and a second insulating film. Each of the wirings contains copper and extends along a surface plane of the substrate in a first direction. The wirings are arranged along the surface plane of the substrate in a second direction different from the first direction. The plug extends through the first insulating film in a third direction crossing the first and second directions and is electrically connected to one of the wirings. The plug contains tungsten. The second insulating film is provided between the first insulating film and the plug.Type: ApplicationFiled: February 25, 2020Publication date: March 18, 2021Inventors: Jun IIJIMA, Masayoshi TAGAMI, Masayuki KITAMURA, Satoshi WAKATSUKI
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Publication number: 20210082945Abstract: According to one embodiment, a semiconductor memory device includes a first insulating layer; a first conductive layer provided in the first insulating layer and extending in the first direction; a second conductive layer extending in the first direction and provided adjacent to the first conductive layer in a second direction; and a contact plug coupled to one surface of the first conductive layer in a third direction. Thicknesses in the third direction of portions of the first and second conductive layers that overlap the contact plug in the third direction are smaller than thicknesses in the third direction of portions of the first and second conductive layers that do not overlap the contact plug in the third direction.Type: ApplicationFiled: August 28, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventor: Kiyomitsu YOSHIDA
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Publication number: 20210082946Abstract: According to one embodiment, a semiconductor memory device includes a via provided above a substrate, a conductive layer provided on the via, and a via provided on the conductive layer. The via, the conductive layer, and the via are one continuous structure.Type: ApplicationFiled: February 5, 2020Publication date: March 18, 2021Applicant: KIOXIA CORPORATIONInventor: Yumi NAKAJIMA
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Publication number: 20210082947Abstract: A memory device includes a substrate, first, second, and third conductive layers, a stack of fourth conductive layers, a memory pillar, and an insulator. The first, second, and third conductive layer are provided above the substrate. The stack of fourth conductive layers is provided above the third conductive layer. The memory pillar extends in the thickness direction through the stack and the third conductive layer and into the second conductive layer in a first region of the memory device. The insulator extends in a thickness direction through the stack, the third conductive layer, and the second conductive layer in a second region of the memory device. The insulator also extends in a second surface direction of the substrate. A thickness of the third conductive layer in a region through which the insulator extends is greater than a thickness of the third conductive layer in the first region.Type: ApplicationFiled: February 25, 2020Publication date: March 18, 2021Inventors: Shigeki KOBAYASHI, Toru MATSUDA, Hanae ISHIHARA
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Publication number: 20210082948Abstract: According to one embodiment, a semiconductor memory device includes a substrate having a first region and a second region arranged in a first direction. The first region includes word line layers and interlayer insulating layers laminated in a second direction, a first semiconductor layer opposed to the word line layers, and an electric charge accumulating film disposed between them. The second region includes a part of the word line layers and the interlayer insulating layers, first insulating layers and a part of the interlayer insulating layers that separate from the word line layers, a contact that has an outer peripheral surface connected to the first insulating layers, and a second insulating layer disposed between the word line layers and the first insulating layers. The first insulating layers have side surfaces connected to the word line layers and side surfaces connected to the second insulating layer.Type: ApplicationFiled: March 4, 2020Publication date: March 18, 2021Applicant: KIOXIA CORPORATIONInventors: Yoshitaka Kubota, Erika Kodama
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Publication number: 20210082949Abstract: According to one embodiment, a semiconductor memory device includes a first stacked body disposed between the belt-like portions and stacked a plurality of first conductive layers via a first insulating layer, a second stacked body disposed in a region in the first stacked body and stacked a plurality of second insulating layers via the first insulating layer, a first pillar extending in the first stacked body in a stacking direction of the first stacked body, and a plurality of second pillars extending in the stacking direction on both sides of the second stacked body facing the belt-like portions and arranged in the first direction, in which the second pillars each include a plate-like portion disposed at a height position of each of the first conductive layers, and the adjacent second pillars are connected to each other by the plate-like portion.Type: ApplicationFiled: March 12, 2020Publication date: March 18, 2021Applicant: Kioxia CorporationInventors: Hisashi HARADA, Ayaha HACHISUGA, Jun NISHIMURA, Wataru UNNO
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Publication number: 20210082950Abstract: According to one embodiment, a semiconductor memory device includes: first and second interconnect layers; a plurality of third interconnect layers stacked between the first and second interconnect layers; a first insulating layer passing through the plurality of third interconnect layers, and including one end that is in contact with a first face of the first interconnect layer; a first memory pillar including a first semiconductor layer passing through the plurality of third interconnect layers and a charge storage layer provided between the plurality of third interconnect layers and the first semiconductor layer. A distance between a third face of the first interconnect layer opposite to the first face and the second interconnect layer in the first direction, differs at a position corresponding to the first insulating layer from at positions corresponding to the third interconnect layers.Type: ApplicationFiled: March 13, 2020Publication date: March 18, 2021Inventor: Yasuhito YOSHIMIZU