baber/WOPTO huggingface dataset:
Patent WO-2020237806-A1 (WO)
Inventor: LUO JIANYE
IPC: C07C43/225
Filed: 2019-07-23
Abstract: The present invention relates to the field of organic synthesis. Provided is a preparation method for 4-fluorine-3-methoxyl-5-methylaniline hydrochloride. A synthetic route of the preparation method for 4-fluorine-3-methoxyl-5-methylaniline hydrochloride is route (I). The preparation method for 4-fluorine-3-methoxyl-5-methylaniline hydrochloride takes cheap and readily available 5-bromine-2-fluorotoluene as a starting material to prepare 4-fluorine-3-methoxyl-5-methylaniline hydrochloride by a 5-step reaction. The method is convenient in technological operation, low in costs, safe, high in total yield, environment-friendly and suitable for industrial production and has a wide application prospect.
Patent WO-2020052351-A1 (WO)
Title: Horizontal directional drilling rig
Inventor: LI MING
IPC: E21B7/04
Filed: 2019-07-25
Abstract: A horizontal directional drilling rig, comprising a walking portion (1), a drill frame (2), a first support portion (3), and a second support portion (4). The drill frame (2) is disposed on the walking portion (1). The first support portion (3) is fixed to a fixed object and detachably connected to a first end of the drill frame. The second support portion (4) is fixed to the fixed object and detachably connected to a second end of the drill frame. The horizontal directional drilling rig employs a modular assembly and disassembly design to achieve modular segmentation, and can be disassembled into several independent units while meeting regulatory requirements in total size and weight. The invention thus enables rapid disassembly of the whole machine and the transportation of disassembled parts, and effectively reduces the structural size, thereby achieving rapid disassembly and convenient transportation of heavy machinery, and enabling large-sized horizontal directional drilling rigs to meet transportation regulations and requirements.
Patent WO-2021016760-A1 (WO)
Inventor: WANG XIAOLONG
IPC: G06F16/953
Filed: 2019-07-26
Abstract: 一种应用推送方法及相关装置，应用于服务器，该方法包括：确定目标用户兴趣度大于预设兴趣度的目标应用类型（S101）；获取应用商店中应用类型为所述目标应用类型的多个应用，并获取所述多个应用的评论信息（S102）；根据所述多个应用的评论信息确定目标应用（S103）；通过所述目标用户持有的电子设备输出推荐下载所述目标应用的推送消息，所述推送消息包括所述目标应用的下载链接以及介绍信息（S104）。该方法有利于为用户推荐适合用户使用的应用。
Patent WO-2021016998-A1 (WO)
Inventor: ZHUO HAIZHEN
IPC: H04L9/32
Filed: 2019-08-01
Abstract: L'invention concerne des procédés, des systèmes et un appareil, y compris des programmes informatiques codés sur un support de stockage informatique, permettant de communiquer et de partager des données de chaîne de blocs. L'un des procédés consiste à déterminer des données d'état historiques associées à un ou plusieurs blocs créés avant un bloc actuel sur une chaîne de blocs; à effectuer un codage de correction d'erreur des données d'état historiques afin de générer une ou plusieurs données d'état historiques codées; à diviser, sur la base d'une ou plusieurs règles prédéfinies, les données d'état historiques codées en une pluralité d'ensembles de données; à sélectionner un ou plusieurs ensembles de données parmi la pluralité d'ensembles de données sur la base de la ou des règles prédéfinies; à hacher le ou les ensembles de données pour générer une ou plusieurs valeurs de hachage correspondant au ou aux ensembles de données; à stocker la ou les valeurs de hachage; et à supprimer, par le nœud de chaîne de blocs, le ou les ensembles de données.
Patent WO-2020038252-A1 (WO)
Inventor: GUO HAOTIAN
IPC: D06F39/02
Filed: 2019-08-13
Abstract: An anticorrosion component of a liquid detergent dispensing apparatus. A retrievable detergent container (1) is arranged within a washing machine body (5). A check valve (2) is provided at a through hole (1-11) corresponding to where a recessed opening (1-1) of the detergent container (1) is located. A wall part of the washing machine body (5) is in communication with a liquid inlet adapter (4). The adapter (4) corresponds to the recessed opening (1-1). A protruding top (4-1) of the adapter (4) corresponds to the check valve (2). A sleeve pipe (1-2) extending downwards is connected to where the recessed opening (1-1) of the detergent container (1) is located. When the recessed opening (1-1) is sleeved on the adapter (4), the sleeve pipe (1-2) is sleeved by the adapter (4). This is applicable in the liquid detergent dispensing apparatus, prevents a sealing element from being corroded, and ensures sealing.
Patent WO-2021031176-A1 (WO)
Inventor: ZHOU JUN
IPC: B28C5/08
Filed: 2019-08-22
Abstract: 本发明涉及搅拌机技术领域，且公开了一种自带清洗功能的混凝土搅拌机，包括加工底座，所述加工底座顶部左右两侧均固定安装有支撑座。该自带清洗功能的混凝土搅拌机，通过设置了搅拌箱，且搅拌箱的左右两侧均固定安装有传动支撑杆与震动电机传动连接，达到了在进行搅拌时，能够通过震动电机带动搅拌箱进行震动，有效避免了混凝土粘在搅拌箱内部上凝结的现象，同时通过设置了搅拌箱的底部固定安装有承接缓冲杆，加工底座的顶部固定安装有与承接缓冲杆相对应的缓冲承接箱，缓冲承接箱的内部固定安装有缓冲弹簧，能够有效减少搅拌箱在震动时，两个传动支撑杆的受力，同时起到了扩大震动频率，对震动方向进行限位的效果。
Patent WO-2021012360-A1 (WO)
Title: 显示面板及制作方法、显示装置
Inventor: MA WEIXIN
IPC: G02F1/1335
Filed: 2019-09-09
Abstract: 一种显示面（100）及制作方法、显示装置，显示面板（100）包括：第一基板（110）、第二基板（120）、液晶层（130）和摄像组件（160），第一基板（110）靠近第二基板（120）一侧设有彩色滤光层（140），彩色滤光层（140）上设有透光部分（141），第二基板(120）靠近第一基板（110）一侧设有薄膜晶体管层（150），通过薄膜晶体管层（150）控制液晶的偏转，实现屏幕下摄像组件（160）获取外界光线的条件和全屏显示的效果。
Patent WO-2020252947-A1 (WO)
Title: 显示面板
Inventor: NI JING
IPC: H01L27/32
Filed: 2019-09-11
Abstract: 一种显示面板（1），包括有机发光器件（2）和设置在所述有机发光器件（2）上的薄膜封装层（3）；所述有机发光器件（2）包括阳极（4），所述显示面板（1）包括边框区（5），位于所述边框区（5）的阳极（4）的表面形成有粗糙结构（6），且所述薄膜封装层（3）覆盖在至少部分所述粗糙结构（6）上。
Patent WO-2021051290-A1 (WO)
Title: Automatic cooling control system for fire grate gap of garbage incinerator
Inventor: ZHENG YUCHENG
IPC: F23G5/44
Filed: 2019-09-18
Abstract: Provided is an automatic cooling control system for a fire grate gap of a garbage incinerator. A front fan is arranged at the front end of the fire grate gap; a rear fan is arranged at the rear end of the fire grate gap; several monitoring points are arranged in a fire grate gap passageway at intervals; a high-pressure water spraying and atomization nozzle is arranged at each monitoring point; correspondingly, a set of monitoring devices is arranged for each monitoring point; each set of monitoring devices is composed of a temperature detector and a smoke sensor; the high-pressure water spraying and atomization nozzle is connected to an external high-pressure water source by means of a pipeline; an electromagnetic valve is further provided; the temperature detector and the smoke sensor transmit signals to the electromagnetic valve separately; and the electromagnetic valve controls a high-pressure water pipeline to be closed or opened. In addition, a system delayer is further provided, the temperature detector and the smoke sensor transmit signals to the delayer separately, and the system delayer controls the operation of the front fan and the rear fan. By means of the control system, water is sprayed to the monitoring point by means of the high-pressure water spraying and atomization nozzle and diversion is carried out by the front fan and the rear fan, such that the temperature of the fire grate may be rapidly reduced.
Patent WO-2021062614-A1 (WO)
Inventor: ZHANG ZHAN
IPC: H04B7/06
Filed: 2019-09-30
Abstract: The present disclosure provides a method (100) in a network device. The method (100) includes: determining (110) a number, N, of sets of beam vectors by: creating a first set of beam vectors orthogonal to each other; and determining an n-th set of beam vectors each obtained by linear combination of two or more beam vectors from the (n-1)-th set of beam vectors, where N and n are integers and N≥n＞1. The method (100) further includes: selecting (120), from one or more of the N sets, a plurality of beam vectors for beamforming of a radio signal.
Patent WO-2020078244-A1 (WO)
Title: Resource collection method and apparatus
Inventor: ZHOU KAI
IPC: G06F3/0482
Filed: 2019-10-10
Abstract: Provided in one or more of the embodiments of the present description are a resource collection method and apparatus, the method comprising: determining a resource collection object, the resource collection object comprising one or a plurality of associated users of a local user, the associated users comprising at least one of the following: one or more community members selected from the organisational architecture of a community to which the local user belongs, one or more group members selected from a group to which the local user belongs, and one or a plurality of contacts selected from the address book; sending a resource collection request to the resource collection object and collecting a set amount of resources from the resource collection object.
Patent WO-2020078470-A1 (WO)
Title: Network-on-chip data processing method and device
Inventor: ZHANG YAO
IPC: G06F15/78
Filed: 2019-10-18
Abstract: The present application relates to a network-on-chip data processing method. The method is applied to a network-on-chip processing system, the network-on-chip processing system is used for executing machine learning calculation, and the network-on-chip processing system comprises a storage device and a calculation device. The method comprises: accessing the storage device in the network-on-chip processing system by means of a first calculation device in the network-on-chip processing system, and obtaining first operation data; performing an operation on the first operation data by means of the first calculation device to obtain a first operation result; and sending the first operation result to a second calculation device in the network-on-chip processing system. According to the method, operation overhead can be reduced and data read/write efficiency can be improved.
Patent WO-2020088406-A1 (WO)
Inventor: IETOMI KUNIHIKO
IPC: H04N7/18
Filed: 2019-10-28
Abstract: The expectation is to be able to highly effectively record each image data in multiple wavelength bandwidths and to be able to at the same time check the captured content in real time. The image processing device comprises: a selection part that selects, from a first image signal of a first wavelength bandwidth outputted by a first image sensor comprised in the video image capturing device and from a second image signal of a second wavelength bandwidth outputted by a second image sensor comprised in the video image capturing device, the first image signal during a first duration and the first image signal and the second image signal during a second duration; and a first generation part that generates image data for display on the basis of the first image signal selected by the selection part during the first duration. The image processing device can comprise a second generation part that generates, on the basis of the first image signal and the second image signal selected by the selection part during the second duration, image data for recording according to a pre-set recording format.
Patent WO-2021068303-A1 (WO)
Inventor: WANG ZENG
IPC: G09G5/10
Filed: 2019-10-30
Abstract: 本申请提出了一种电子设备及其阅读模式的识别方法、控制器，该识别方法通过获取目标电子设备第i帧画面中任意n行像素的RGB数据；根据该n行像素的RGB数据，获取每一行像素的RGB数据配比种类数、及RGB数据配比种类数不超过2的行数m；根据m与n的比值与第一阈值的大小以判定目标电子设备是否处于阅读模式。
Patent WO-2021081976-A1 (WO)
Inventor: ROBB LEANNA HOLLY
IPC: H04L12/58
Filed: 2019-11-01
Abstract: In non-limiting examples of the present disclosure, systems, methods and devices for surfacing email suggestions are presented. A first user account associated with a composer of an email may be identified. Core working hour and a time zone associated with that first user account may be determined. One or more recipient user accounts included in the email may be identified. Core working hours and a time zones associated with the recipient user accounts may be identified. If more than a threshold number, percentage, and/or ratio of the recipient users is not currently in core working hours when the email is being drafted/sent, a suggestion may be surfaced in association with the email to send the email at a later time when more recipient users are in their core working hours.
Patent WO-2021000477-A1 (WO)
Title: Ceiling lamp
Inventor: ZHU HONG
IPC: F21S8/04
Filed: 2019-11-05
Abstract: A ceiling lamp, comprising a ceiling cover (1) and a lamp body (2). The peripheral edge of an opening at the lower end of the ceiling cover (1) is bent inward to form an annular hook (12); the lamp body (2) comprises a lamp housing (21) and a lamp cover (22); a light board (23) fixedly connected to the lamp housing (21) is provided in a cavity formed by the lamp housing (21) and the lamp cover (22); several LED lights (24) are provided on the light board (23); a cylindrical protrusion (25) is fixedly provided on the upper surface of the lamp housing (21); the outer sidewall of the protrusion (25) is horizontally provided with at least two slide ways (26) at equal intervals; a fastening assembly (27) is provided in the slide way (26). After the ceiling cover (1) is mounted to a ceiling, the lamp body (2) is fastened to the ceiling cover (1) by means of the fastening assembly (27), and the operation for mounting the ceiling lamp is very easy, thereby improving the ceiling lamp mounting efficiency; when the light board (23) or other components in the lamp body (2) are damaged, the lamp body (2) only needs to be rotated clockwise to separate the lamp body (2) from the ceiling cover (1), so that the damaged component in the lamp body (2) can be quickly repaired without removing the ceiling cover (1), and after component repair is completed, the lamp body (2) only needs to be pushed up into the ceiling cover (1) to complete mounting of the lamp body (2), thereby improving the lamp (2) repairing efficiency and reducing labor cost.
Patent WO-2020211333-A1 (WO)
Inventor: ZHONG HAIZHENG
IPC: G02B5/30
Filed: 2019-11-05
Abstract: 一种嵌入式晶体及其制备方法和应用。该嵌入式晶体包括纳米晶和主基质晶体，该纳米晶嵌入该主基质晶体且分布于该主基质晶体的某一晶面。只用单片该晶体便实现了消色差四分之一波片的全部性能，避免了现有宽波段消色差波片需要粘连多个和多种晶体等繁琐的工艺及光学设计的过程。
Patent WO-2021068322-A1 (WO)
Title: Training method and apparatus for living body detection model, computer device, and storage medium
Inventor: ZHAO YALIN
IPC: G06K9/00
Filed: 2019-11-07
Abstract: A training method for a living body detection model comprises: acquiring an initial living body detection model comprising an initial candidate region generation network and an initial living body classification network; training the initial candidate region generation network according to a first training sample set, to obtain a first candidate region generation network; training the initial living body classification network according to the first candidate region generation network and a second training sample set, to obtain a first living body classification network; according to the first candidate region generation network, the first living body classification network and the second training sample set, obtaining current living body position information; according to a difference between the current living body position information and target living body position information, adjusting parameters of the first candidate region generation network and continuing training same, to obtain a target candidate region generation network; and training the first living body classification network according to the target candidate region generation network and the second training sample set, to obtain a target living body classification network.
Patent WO-2020177415-A1 (WO)
Title: Electric motor assembly and oven
Inventor: LI YUNLONG
IPC: H02K5/18
Filed: 2019-12-03
Abstract: An electric motor assembly (1) and an oven. The electric motor assembly (1) comprises an electric motor (11) and a heat sink (12). The electric motor (11) comprises a stator (111), a rotor (112) and an electric motor shaft (113) connected to the rotor (112), the rotor (112) rotatably fitting the stator (111); the heat sink (12) is connected to the electric motor shaft (113) of the electric motor (11), the heat sink (12) is adapted to rotate along with the electric motor shaft (113), and the heat sink (12) extends in a direction perpendicular to the electric motor shaft (113).
Patent WO-2021031494-A1 (WO)
Title: Ultrathin lithium battery
Inventor: XU LIQIU
IPC: H01M10/052
Filed: 2019-12-25
Abstract: An ultrathin lithium battery, comprising a battery core and a packaging film (1). The packaging film (1) comprises a positive electrode packaging film that has a positive electrode tab and a negative electrode packaging film that has a negative electrode tab. The packaging film (1) of the lithium battery is formed by combining an outer protective layer (7) and an inner metal layer (9). At least the inner surface of the metal layer (9) is provided with a chemically-treated anti-corrosion layer (10), and the metal layer (9) of the packaging film (1) both acts as a lithium battery current collector and is lead out to form an electrode tab. The packaging film structure does not comprise an inner film layer, and the inner surface of the metal acts as a current collector of the lithium battery and is lead out directly to act as an electrode tab for use, so that a welding process between the electrode tab and the current collector is skipped, and the thickness of the lithium battery is reduced. A fabrication process for ultrathin thickness, low costs and high battery energy density are achieved. The battery has a certain degree of flexibility and may bend, which may more easily greatly expand the application field and range of lithium batteries when later designing a structure for use in electronic products.
Patent WO-2021098012-A1 (WO)
Inventor: QUE GUOYU
IPC: G03B15/06
Filed: 2019-12-27
Abstract: A pocket flash comprising a housing assembly (10), a reflective plate (20), a flash assembly (30), a soft light assembly (40), and a control assembly (50). The housing assembly (10) comprises an upper housing (11), a middle housing (12) and a lower housing (13), the upper housing (11) being connected to a first end of the middle housing (12), and a second end of the middle housing (12) being connected to the lower housing (13). The reflective plate (20) is connected to the inner bottom surface of the first end of the middle housing (12). The flash assembly (30) comprises a flashtube (31), the flashtube (31) being mounted at the first end of the middle housing (12) and disposed within the reflective plate (20). The soft light assembly (40) comprises a lens (41) and a diffuser plate (42), the lens (41) being mounted on the upper housing (11) and being close to the reflective plate (20), and the diffuser plate (42) being mounted on the upper housing (11) and being disposed on the side of the lens (41) away from the reflective plate (20); and the control assembly (50) is installed on the lower housing (13) and is electrically connected to the flash assembly (30). The flash solves the problems of light from the flash being too harsh, blinding, and reflecting back, and an auxiliary soft light accessory being inconvenient to use.
Patent WO-2021128362-A1 (WO)
Title: 一种环保型有机废气处理装置
Inventor: XU JIANGUO
IPC: B01D47/02
Filed: 2019-12-28
Abstract: 一种环保型有机废气处理装置，包括支撑框（1），支撑框（1）顶部安装有储油箱（7），储油箱（7）下侧安装有喷油嘴（9），喷油嘴（9）下端设置在燃烧腔（12）内部，燃烧腔（12）左侧安装有进气管（13），进气管（13）上设置有进风泵（14），进风泵（14）右侧安装有第二控制阀（15），第二控制阀（15）和进风泵（14）之间下侧安装有第一曝气管（16），第一曝气管（16）的另一端与储水腔（17）进行连接，储水腔（17）上侧通过第一通风管（19）与干燥箱（20）进行连接，干燥箱（20）上侧通过第二通风管（23）与进气管（13）进行连接，燃烧腔（12）右侧通过第三通风管（24）与吸附腔（26）进行连接，吸附腔（26）右侧设置有出风管（28），燃烧腔（12）下侧中部安装有第二曝气管（29），第二曝气管（29）上安装有曝气泵（30）。
Patent WO-2021134578-A1 (WO)
Title: Multi-hop transmission method, and device
Inventor: DING MENGYING
IPC: H04W88/04
Filed: 2019-12-31
Abstract: The present application discloses a multi-hop transmission method and a device, applicable to the fields of V2X, Internet of Vehicles, intelligent connected vehicles, assisted driving, intelligent driving, and the like, and used to solve the problem of an excessive multi-hop transmission delay in the related art. In an embodiment of the present application, terminal apparatuses participating in multi-hop transmission can share a shared resource pool. Using a first terminal apparatus and a second terminal apparatus participating in multi-hop transmission as an example, the multi-hop transmission method comprises: the first terminal apparatus sending data to the second terminal apparatus on a first resource, and if data sending of the first terminal apparatus on the first resource fails, then the first terminal apparatus re-sending the data to the second terminal apparatus on a second resource, wherein the shared resource pool comprises the first resource and the second resource, and the first resource and the second resource are contiguous in a time domain. The shared resource pool in embodiments of the present application is configurable by means of one scheduling process, thereby reducing the transmission delay.
Patent WO-2020156111-A1 (WO)
Inventor: Lei Zezheng
IPC: G06F9/451
Filed: 2020-01-13
Abstract: 本公开提供一种界面显示方法及终端，该方法包括：接收用于触发目标页面显示的第一输入；响应于所述第一输入，按照所述第一输入的操作参数对应的显示方式，显示所述目标页面中的功能卡片。
Patent WO-2020147673-A1 (WO)
Title: 区块链账本的存储方法及装置
Inventor: QIAN LIANGFANG
IPC: H04L29/08
Filed: 2020-01-13
Abstract: 本申请提供一种区块链账本的存储方法及装置。该方法应用于第一簇头节点，第一簇头节点属于第一节点簇，第一节点簇用于存储区块链账本的第一副本。区块链账本包括一个头区块和至少一个数据区块。第一节点簇还包括至少一个普通节点。该方法包括：接收第一副本和至少一个普通节点上报的可用存储空间大小。然后，根据至少一个普通节点上报的可用存储空间大小和第一副本的数据量，确定至少一个普通节点中每个普通节点需要存储的数据区块。之后，存储头区块，以及至少一个数据区块的存储信息。其中，存储信息用于指示每个数据区块与其所在的普通节点的对应关系。可以适用于利用多个分布式节点共同存储区块链账本的一个副本。
Patent WO-2020156203-A1 (WO)
Inventor: TANG ZHIHUA
IPC: H04W72/12
Filed: 2020-01-16
Abstract: 本申请提供一种用于短周期半静态调度的资源配置方法和装置。本申请用于短周期半静态调度的资源配置方法，包括：确定当前已配置为短周期半静态调度S-SPS的用户设备UE，并获取分配给已配置为S-SPS的UE的S-SPS周期和S-SPS资源块；根据分配给已配置为S-SPS的UE的S-SPS周期和S-SPS资源块确定待配置UE的S-SPS周期，待配置UE为支持S-SPS的UE；根据待配置UE的S-SPS周期给待配置UE分配S-SPS资源块。本申请减少干扰，提高S-SPS效率。
Patent WO-2021146896-A1 (WO)
Title: File sharing method, apparatus and system
Inventor: YAN ZHEFENG
IPC: H04L29/08
Filed: 2020-01-21
Abstract: Provided are a file sharing method, apparatus and system, relating to the field of distributed storage. The method comprises: receiving a data acquisition request that is from a requesting node (30) and carries an identifier of a target data block; if a storage node (10) does not store the target data block, and a list to be subjected to transmission records the identifier of the target data block, sending, to a target sharing node (20) for uploading the target data block, a preferential uploading request carrying the identifier of the target data block; and receiving the target data block uploaded by the target sharing node (20), and sending same to the requesting node (30). The storage node (10) can instruct the sharing node (20) to preferentially upload the target data block requested by the requesting node (30), such that the target data block can be sent to the requesting node (30) in a timely manner. Therefore, the requesting node (30) can display a shared file in real time on the basis of an acquired data block during the downloading of the shared file, without waiting for the shared file to be completely downloaded before displaying same.
Patent WO-2020181943-A1 (WO)
Inventor: HE QINGCHUN
IPC: H04W52/02
Filed: 2020-02-11
Abstract: 本申请涉及一种请求系统信息的方法及设备，其中的一种请求系统信息的方法包括：向网络设备发送用于请求系统信息的第一消息；接收来自所述网络设备的第二消息，并确定所述第二消息为所述第一消息的响应消息；启动或重启第一定时器，以在所述第一定时器的运行时间内等待接收用于调度所述系统信息的下行控制信道，其中，在所述第一定时器的运行时间内，所述终端设备处于激活状态。本申请实施例控制了终端设备进入休眠态的时机，提高了系统信息的接收成功率。
Patent WO-2021159521-A1 (WO)
Inventor: HU TAO
IPC: G01N35/10
Filed: 2020-02-14
Abstract: 本公开实施例提供了一种微流控检测芯片及其使用方法，该微流控检测芯片，包括：储液层包括第一储液孔和第二储液孔；顶盖层，包括：与第一储液孔相对应的通孔，及与第二储液孔相对应的加样孔；底盖层包括与第一储液孔相对应的通孔；第一密封层，位于储液层与底盖层之间，包括：被配置为密封第一储液孔的第一密封结构；微流道层，位于第一密封层与底盖层之间，包括：与第一储液孔相对应的第一开孔，与第二储液孔相对应的第二开孔，及连通第一开孔与第二开孔的第一微流道；第一微流道位于微流道层面向底盖层的一侧；第一弹性密封层，位于微流道层背离底盖层的一侧；第二弹性密封层，位于储液层与顶盖层之间，包括与第二储液孔相对应的加样孔。
Patent WO-2021128548-A1 (WO)
Inventor: NING XUBIN
IPC: H01L29/423
Filed: 2020-02-19
Abstract: 本申请提供了一种沟槽IGBT芯片，包括N-型漂移层；多个并联的元胞，元胞包括两个设置于N-型漂移层上表面的第一沟槽内的主栅极，两个主栅极沿N-型漂移层的表面延伸且平行分布；虚栅极，位于元胞之间并设置于N-型漂移层上表面的第二沟槽内，虚栅极平行于主栅极；虚栅极通过虚栅主线引出电位，主栅极和虚栅极之间的第一虚栅P阱或者两个虚栅P阱之间的第二虚栅P阱中的虚栅P+接触区通过虚栅P阱主线引出电位。利用该沟槽IGBT芯片，通过引出虚栅以及虚栅P阱，使其分别能够施加不同的电位，避免了虚栅和P阱浮空时因Cgc较大产生的位移电流导致关断瞬间Vge抬升而减小了器件关断能力，在不降低性能的情况下有效地避免了开关过程中的电压或电流过冲。