baber/WOPTO huggingface dataset:
Patent WO-2021145231-A1 (WO)
Title: Flexible optical laminate and image display device
Inventor: HONG SEUNGBAEK
IPC: G09F9/00
Filed: 2021-01-05
Abstract: The present invention relates to a flexible optical laminate comprising a plurality of optical members and a coloring layer. The plurality of optical members are laminated with an adhesive layer interposed therebetween, and in plan view are divided into a display region and a non-display region. The coloring layer is formed in the non-display region and the level difference, on the outermost surface of the viewing side, between the display region and the non-display region is 1.2 μm or less. Provided, according to the present invention, is a flexible optical laminate which prevents formation of air bubbles in a wet heat environment and makes the level difference on the outer surface of a product hardly recognizable.
Patent WO-2021149811-A1 (WO)
Title: Organic matter decomposer and use therefor
Inventor: TAKAYA MAKOTO
IPC: C02F3/34
Filed: 2021-01-22
Abstract: An organic matter decomposer which contains a carrier and a microbial population carried by the carrier, wherein the carrier contains foam glass, and the microbial population includes Bacillus subtilis (BN1001 strain) (Accession number at International Depositary Authority: NITE BP-02608) and Bacillus subtilis var. natto.
Patent WO-2021172562-A1 (WO)
Inventor: ITOH YOUHEI
IPC: E01C19/48
Filed: 2021-02-26
Abstract: L'invention concerne un dispositif (100) de finition d'asphalte qui comprend un capot moteur (1a) qui recouvre un moteur (6), et un tube de sortie (64) pour évacuer le gaz d'échappement du moteur (6) vers l'atmosphère. La hauteur du tube de sortie (64) est inférieure à la hauteur (H2) de l'œil d'un opérateur (OP) s'asseyant sur le siège conducteur. Le tube de sortie (64) fait saillie à travers une ouverture (AP) formée dans le capot moteur (1a), la partie supérieure du tube de sortie (64) étant recouverte par un couvercle de ventilation (VC).
Patent WO-2022038812-A1 (WO)
Inventor: KOBAYASHI YOSHIAKI
IPC: G06Q50/04
Filed: 2021-03-05
Abstract: The present invention generates a virtual model from design information and equipment specifications. This information processing device comprises: a design acquisition unit (11) for acquiring design information (22) including information about digitized equipment to be used; a specification acquisition unit (13) for acquiring equipment specifications (32) corresponding to the equipment included in the design information; and an association unit (15) for creating associated data by associating the equipment specifications and the design information with each other. The information processing device generates a virtual model using the associated data.
Patent WO-2022044395-A1 (WO)
Inventor: KOMURATA MIKU
IPC: A61B3/113
Filed: 2021-03-12
Abstract: This sight line detection device is provided with: a display unit that displays an image; a plurality of light sources that emit detection light to irradiate at least one of the eyes of a subject; an imaging unit that captures an image of the eye being irradiated with the detection light; a position detection unit that detects a pupil center position indicating the center of the pupil of the eye being irradiated with the detection light and a corneal reflection center position indicating the center of corneal reflection, from the captured image; a gazing point detection unit that calculates the position of a gazing point of the subject on the basis of the pupil center position and the position of the center of the corneal curvature; and a light source control unit that controls the plurality of light sources to emit or not to emit light, and switches a light source that emits the detection light among the plurality of light sources on the basis of the position of the gazing point of the subject.
Patent WO-2021193613-A1 (WO)
Title: 共重合体、樹脂組成物、成形体、フィルム状成形体、及び共重合体の製造方法
Inventor: OTANI GO
IPC: C08F265/06
Filed: 2021-03-23
Abstract: 質量平均分子量（Ｍｗ）が、２４０，０００以上３，５００，０００以下であり、アクリレート（Ｂ１）に由来する構造単位及び芳香族ビニル（Ｂ２）に由来する構造単位を含み、分岐構造を有する、共重合体。
Patent WO-2022201411-A1 (WO)
Title: Face authentication application using homomorphic encryption
Inventor: CHATANI MASAYUKI
IPC: H04L9/32
Filed: 2021-03-25
Abstract: An on-premise server according to the present invention comprises: a holding means for holding a public key used in homomorphic encryption; a facial image acquisition means for acquiring a facial image of a visitor, the facial image being obtained by imaging the visitor by a camera installed at a reception; an encryption means for causing a facial feature amount of the acquired facial image to be homomorphically-encrypted by using the public key held by the holding means; a transmission means for transmitting, via a network, the homomorphically-encrypted facial feature amount to a cloud server which achieves face authentication while keeping the facial feature amount homomorphically-encrypted; and a selection means for selecting an action with respect to the visitor according to the result of the face authentication achieved by the cloud server.
Patent WO-2021235401-A1 (WO)
Title: Solid electrolyte ceramic material, and solid battery
Inventor: TAKANO Ryohei
IPC: H01M4/62
Filed: 2021-05-17
Abstract: The present invention provides a solid electrolyte ceramic material that has sufficiently higher ionic conductivity and more sufficiently suppresses the growth of Li dendrites. The present invention relates to a solid electrolyte ceramic material obtained by sintering solid electrolyte particles, wherein the solid electrolyte ceramic material includes at least Li (lithium), La (lanthanum), Bi (bismuth), and O (oxygen), and the Bi concentration in the vicinity of grain boundaries is higher than the Bi concentration inside the particles.
Patent WO-2022009616-A1 (WO)
Title: Thermoplastic resin composition, member, and manufacturing method and mechanical strength improvement method for member formed from thermoplastic resin composition
Inventor: KANDA YUUKI
IPC: C08L67/02
Filed: 2021-06-14
Abstract: Provided are: a thermoplastic resin composition obtained by melt-mixing at least 0.1-0.5 parts by mass of carbon nanostructures per 100 parts by mass of a thermoplastic resin; a member obtained by molding said thermoplastic resin composition; a manufacturing method for a member involving a step for preparing the aforementioned thermoplastic resin composition and a step for molding the thermoplastic resin composition into a prescribed shape; and a mechanical strength improvement method for a member formed from a thermoplastic resin composition, the method using a resin composition obtained by melt-mixing 0.1-0.5 parts by mass of carbon nanostructures per 100 parts by mass of a thermoplastic resin.
Patent WO-2022004870-A1 (WO)
Inventor: SAKANOUE SHUICHI
IPC: C10N40/12
Filed: 2021-07-02
Abstract: 基油（Ａ）、下記一般式（ｂ－１）で表される化合物（Ｂ１）を含むジチオリン酸亜鉛（Ｂ）、カルシウムスルホネート（Ｃ）、及びシールスウェラー（Ｄ）を含有する、潤滑油組成物を提供する。［上記式（ｂ－１）中、Ｒ １ ～Ｒ ４ は、それぞれ独立に、アルキル基である。ただし、Ｒ １ ～Ｒ ４ のうち少なくとも一つは、所定の直鎖アルキル基であり、また、Ｒ １ ～Ｒ ４ のうち少なくとも一つは所定の分岐鎖アルキル基である。］
Patent WO-2022009961-A1 (WO)
Title: Robot, and robot manufacturing method
Inventor: KODA YUTA
IPC: B25J5/00
Filed: 2021-07-08
Abstract: The present invention improves the posture and the walking stability of a robot by accurately calculating the load acting on the sole surfaces. A robot (1) comprises: foot parts (6) having respective sole surfaces; a plurality of load sensors (63) disposed on each foot part (6); and a control device (20). The control device (20) comprises: a correction-value calculation unit (20B) that calculates a correction value based on the center-of-gravity position of a load; and a load calculation unit (20C) that calculates the load acting on each sole surface on the basis of the calculated correction value and output from the plurality of load sensors (63).
Patent WO-2022019320-A1 (WO)
Title: Film antenna and communication device
Inventor: AMAKAI Shinya
IPC: H01Q1/38
Filed: 2021-07-20
Abstract: A film antenna comprising: a substrate having a first surface and a second surface positioned opposite to the first surface; one or more patches including a first electrical conductor layer positioned on the first surface side and having a first outer edge in plan view; and a ground including a second electrical conductor layer positioned on the second surface side and having a second outer edge positioned outside the first outer edge in plan view.
Patent WO-2023007708-A1 (WO)
Title: ロータ及びモータ
Inventor: SHIBAYAMA YOSHIYASU
IPC: H02K1/27
Filed: 2021-07-30
Abstract: 永久磁石の漏れ磁束の発生を軽減し、マグネットトルクの低下を軽減する。ロータ１は、回転軸Ａ回りに回転するロータ本体２と、ロータ本体２において回転軸Ａを中心とする周方向に配列され、周方向において交互に異なる磁極を形成する複数の永久磁石４とを備える。回転軸Ａに直交する、永久磁石４の断面形状は、所定の基準線に沿って延びる形状をしている。永久磁石４は、回転軸Ａに直交する断面において基準線と交差する方向に磁化される。永久磁石４のうち基準線の方向における少なくとも一方の端部は、ロータ本体２の外周面２８から露出している。
Patent WO-2022064865-A1 (WO)
Inventor: NAMBU KAZUYA
IPC: G06Q30/06
Filed: 2021-08-03
Abstract: La présente invention permet de fournir un service réalisé par modification de reçus papier en utilisant également des reçus électroniques.　Un serveur de reçus selon le présent mode de réalisation est pourvu d'une unité de stockage, d'une unité de génération et d'une unité de mise à jour. L'unité de stockage stocke des données de gestion pour gérer l'affichage des éléments d'affichage. L'unité de génération génère un écran de reçu, qui sert à présenter des détails de transaction et à les afficher sur un dispositif terminal d'informations, en ajoutant, sur la base des données de gestion stockées par l'unité de stockage, les éléments d'affichage à afficher. L'unité de mise à jour met à jour les données de gestion conformément à une opération, du dispositif terminal d'informations, sur l'écran de reçu généré par l'unité de génération.
Patent WO-2022065181-A1 (WO)
Inventor: MATSUOKA YOSHIAKI
IPC: B29C45/00
Filed: 2021-09-16
Abstract: This resin composition for injection molding contains a poly(3-hydroxyalkanoate)-based resin. The poly(3-hydroxyalkanoate)-based resin includes at least one copolymer of a 3-hydroxybutyrate unit and another hydroxyalkanoate unit. The average content ratio of the 3-hydroxybutyrate unit in the poly(3-hydroxyalkanoate)-based resin is 92-99 mol%. The weight-average molecular weight of the poly(3-hydroxyalkanoate)-based resin in terms of polystyrene, as measured by gel permeation chromatography using a chloroform solvent, is 210,000-380,000, and the proportion of a component having a weight molecular weight of at most 200,000 in the weight molecular weight distribution is 35-60 wt%.
Patent WO-2022065258-A1 (WO)
Inventor: OTA HIDENARI
IPC: B29C70/50
Filed: 2021-09-17
Abstract: This double belt press device is provided with a lower belt unit (1) including a plurality of rollers (1b), a lower endless belt (1c), and a lower frame (1a), and an upper belt unit (2) including a plurality of rollers (2b), an upper endless belt (2c), and an upper frame (2a), and is configured in such a way as to compress a machining target (X) between the lower endless belt and the upper endless belt while conveying the same, wherein the lower frame and the upper frame are connected in such a way as to be capable of being separated at at least a front end among said front end, which is an end portion on one side in a horizontal direction perpendicular to the conveying direction of the machining target, and a rear end, which is the end portion on the other side.
Patent WO-2022091688-A1 (WO)
Inventor: MIYAMOTO HISAO
IPC: A61B18/12
Filed: 2021-09-30
Abstract: Provided is an ablation system capable of improving the ablation efficiency during ablation. An ablation system 5 is provided with an electrode needle 1 and a power supply device 3 having a power supply unit 32 that supplies electric power Pout and a control unit 33. The control unit 33 measures an impedance value Z between the electrode needle 1 and a counter electrode plate 4 during ablation, counts a break number Nb which is the number of times when the impedance value Z exceeds a threshold value Zth and transitions to a break state, and automatically stops the supply of the electric power Pout to automatically terminate ablation when the break number Nb reaches a threshold value Nth. On the other hand, when the break number Nb is less than the threshold value Nth, the control unit 33 temporarily reduces or stops the supply of the electric power Pout on the basis of an electric power supply value Pout1 at the transition to the break state as a reference, and restarts the supply of the electric power Pout while the electric power Pout supply value is set to an electric power supply value Pout2 obtained through a reduction from the electric power supply value Pout1 by a predetermined reduction value ΔP1.
Patent WO-2022102649-A1 (WO)
Title: Bandelette réactive d'analyse d'électrolyte et dispositif d'analyse d'électrolyte
Inventor: YAMASHITA HIDEYUKI
IPC: G01N27/333
Filed: 2021-11-10
Abstract: Selon la présente invention, une bandelette réactive d'analyse d'électrolyte comprend un substrat (31) qui s'étend dans une direction (direction X). Un premier film sensible aux ions (41i), qui est disposé sur une région spécifique sur une extrémité (31e) par rapport à la direction X, et une première électrode d'extraction (43), qui s'étend entre le premier film sensible aux ions (41i) et l'autre d'extrémité (31f), sont disposés sur une face principale (31a) du substrat (31). Un second film sensible aux ions (42i), qui est disposé sur une région spécifique sur ladite extrémité (31e), et une seconde électrode d'extraction (44), qui s'étend entre le second film sensible aux ions (42i) et l'autre d'extrémité (31f), sont disposés sur l'autre face principale (31b) du substrat (31). Le premier film sensible aux ions (41i) et le second film sensible aux ions (42i) sont chacun en contact avec un électrolyte afin de générer un premier potentiel correspondant à la concentration d'une première espèce ionique et un second potentiel correspondant à la concentration d'une seconde espèce ionique.
Patent WO-2022118643-A1 (WO)
Title: 半導体受光素子
Inventor: TAGUCHI Keiki
IPC: H01L31/10
Filed: 2021-11-15
Abstract: 半導体受光素子（１）は、基板（１０）と、前記基板（１０）の第１領域（ＲＢ）上に形成された半導体積層部（２０）と、前記半導体積層部（２０）に電気的に接続された第１電極（４０）及び第２電極（５０）と、を備え、前記半導体積層部（２０）は、ＩｎｘＧａ１－ｘＡｓを含む第１導電型の光吸収層（２４）と、前記光吸収層（２４）に対して前記基板（１０）と反対側に位置すると共に前記光吸収層（２４）に接合された前記第１導電型と異なる第２導電型の第２領域（２７）と、を含み、前記第１電極（４０）は、前記半導体積層部（２０）のうち、前記光吸収層（２４）に対して前記基板（１０）側に位置する前記第１導電型の第１部分（３１）に接続されており、前記第２電極（５０）は、前記半導体積層部（２０）のうち、前記光吸収層（２４）に対して前記基板（１０）と反対側に位置する前記第２導電型の第２部分（２７）に接続されており、前記光吸収層（２４）におけるＩｎ組成ｘは、０．５５以上であり、前記光吸収層（２４）の厚さは、１．８μｍ以下である。
Patent WO-2023089785-A1 (WO)
Inventor: IWASAWA HIROKI
IPC: H04L47/6275
Filed: 2021-11-19
Abstract: Dispositif de transmission permettant de transmettre une pluralité de données de priorité différente par multiplexage temporel, le dispositif de transmission comprenant une ou plusieurs files d'attente de programmation ayant été programmées de manière à empêcher le chevauchement de synchronisation de transmission de données, une ou plusieurs files d'attente de transmission présentant une priorité différente de celle des files d'attente de programmation, et un programmateur de retrait de file d'attente permettant de transmettre, avant et/ou après la transmission de données des files d'attente de programmation, des données de priorité différente au sein d'un intervalle de temps au cours duquel la transmission de données par les files d'attente de programmation est possible.
Patent WO-2022131141-A1 (WO)
Inventor: HASHIMOTO Mutsue
IPC: A61K8/365
Filed: 2021-12-03
Abstract: La présente invention concerne une composition cosmétique multiphase comprenant au moins une phase huileuse et au moins une phase aqueuse, comprenant : (a) au moins une huile polaire, (b) au moins une huile non polaire, (c) au moins un alpha-hydroxyacide et (d) de l'eau, la quantité de phase huileuse étant comprise entre 4 et 10 % en poids par rapport au poids total de la composition; le rapport pondéral de l'huile polaire (a) à l'huile non polaire (b) étant supérieur à 1, la quantité d'alpha-hydroxyacide variant de 1,5 à 5 % en poids par rapport au poids total de la composition et la phase huileuse et la phase aqueuse formant deux couches séparées au repos.
Patent WO-2022158201-A1 (WO)
Title: Image processing device, image processing method, and program
Inventor: HATAZAWA HIROMITSU
IPC: H04N5/232
Filed: 2021-12-17
Abstract: This image processing device is provided with an image processing unit that specifies a pixel region of interest containing a subject of interest, from an image that is a processing target, and performs image processing using the specified pixel region of interest.
Patent WO-2022190536-A1 (WO)
Title: Motor control system and motor control device
Inventor: MATSUGAMI MASAKAZU
IPC: H02P3/18
Filed: 2021-12-20
Abstract: This motor control system comprises: a higher-level control device for transmitting an operation command signal for driving and controlling a motor to a plurality of motor control devices via a first communication line; and the plurality of motor control devices for controlling the drive of the motor on the basis of the operation command signal. The motor control devices comprise: a failure determination unit for determining a failure as a first failure mode when the failure has occurred in predetermined circuits within the motor control devices, determining a failure as a second failure mode when the failure has occurred in other than the predetermined circuits, and outputting failure mode information indicating the first failure mode or the second failure mode; a mode notification unit for notifying, via a second communication line, the other motor control devices of the failure mode information output from the failure determination unit; and a brake control unit which, when obtaining the failure mode information, stops the motor on the basis of the failure mode information.
Patent WO-2022209060-A1 (WO)
Title: Secondary battery
Inventor: NISHIIE DAIKI
IPC: H01M50/109
Filed: 2021-12-21
Abstract: This secondary battery comprises an exterior member, a battery element accommodated inside the exterior member, an electrode terminal arranged outside the exterior member, and an insulated adhesive member arranged between the electrode terminal and the exterior member. The exterior member includes an accommodation member that has an opening and that accommodates the battery element therein, and a lid part that closes the opening and that is joined to the accommodation member. At least a portion of the outer peripheral end part of the electrode terminal is bonded to the lid part via the adhesive member, and the thickness of the electrode terminal is greater than the thickness of the lid part.
Patent WO-2022201696-A1 (WO)
Inventor: SUZUKI YUTA
IPC: H04B10/07
Filed: 2021-12-22
Abstract: Provided are an optical communication device, an optical communication method and an optical communication system wherein improved transmission characteristics can be achieved. This optical communication device (NE) comprises: a monitor unit (MN) that is connected to an optical communication network (100) having multiple optical communication devices (NE) connected via transport paths used for transporting WDM signal light in which multiple optical signals have been wavelength-division-multiplexed and that monitors the received waveform (30) of an optical signal when the optical signal received from another optical communication device (NE) is converted to a digital signal; and a center-wavelength control unit (CW) that feedback-controls, on the basis of the monitored received waveform (30), the center wavelength (23) in the transmitted waveform (20) of the optical signal transmitted by the other optical communication device (NE).
Patent JP-WO2020194650-A1 (JP)
Title: 異物検出装置、異物検出方法、およびプログラム
IPC: G01S17/87
Filed: 2019-03-28
Abstract: 本発明の目的は、少ない計算量で異物の判定を実現することができる異物検出装置を提供することである。   計測情報取得部（９１）は、検出範囲における深度を計測する深度計測装置（ＬｉＤＡＲ１１０）が計測した深度を示す深度情報を取得する。画像取得部（９２）は、検出範囲を撮像する撮像装置（カメラ１３０）が撮像した画像を取得する。深度抽出部（９３）は、取得された画像に基づいて、深度情報のうち異物であるか否かの判定対象としない部分が除去された部分深度情報を抽出する。異物判定部（９４）は、部分深度情報に基づいて検出範囲における異物の有無を判定する。
Patent WO-2023135707-A1 (WO)
Inventor: IDE Miyu
IPC: G01B11/02
Filed: 2022-01-13
Abstract: 情報処理装置（１００）は、複数の異なる角度から複数の対象物を撮像することにより得られた複数の画像を取得する取得部（１２０）と、複数の画像に基づいて、複数の層を構成する３次元色付き点群情報を作成する作成部（１３０）と、予め定められた方法を用いて、３次元色付き点群情報の中から複数の対象物の点群情報である対象物点群情報を抽出する抽出部（１４０）と、対象物点群情報の点群密度を算出する算出部（１５０）と、対象物点群情報と点群密度とに基づいて、複数の層のうち、最上層以外の層を検出する検出部（１７０）と、を有する。
Patent WO-2022168620-A1 (WO)
Title: 硬化性組成物
Inventor: SHIBAMOTO AKIHIRO
IPC: C08K5/34
Filed: 2022-01-20
Abstract: テトラアザポルフィリン化合物の熱劣化を抑制して、視認性、防眩効果、及びコントラスト増強効果に優れたレンズを実現可能な硬化性組成物を提供する。　本開示の硬化性組成物は、シクロヘキセンオキシド基を有するシルセスキオキサンと、５７０～６０５ｎｍの波長領域に吸収ピークを有するテトラアザポルフィリン化合物とを含有し、前記テトラアザポルフィリン化合物の含有量が前記シルセスキオキサン含有量の１０００～１００００重量ｐｐｍである。
Patent WO-2022172933-A1 (WO)
Title: 液状組成物、その製造方法及び凸部付き部材
Inventor: MITSUNAGA Atsumi
IPC: C08L27/18
Filed: 2022-02-09
Abstract: 【課題】分散安定性及び取扱い性に優れる、テトラフルオロエチレン系ポリマーのパウダーを含む、好適にはレジスト組成物である液状組成物、かかる液状組成物の製造方法、並びにかかる液状組成物から形成された所定のパターンを有する凸部を有する、凸部付き部材を提供すること。 【解決手段】カルボニル基含有基又は水酸基含有基を有するテトラフルオロエチレン系ポリマーのパウダーと、多官能（メタ）アクリレート及び水酸基若しくはオキシアルキレン基を有するモノ（メタ）アクリレートからなる群から選ばれる少なくとも１種の、粘度が１００００ｍＰａ・ｓ未満である液状（メタ）アクリレートと、（メタ）アクリル変性されたカルボキシル基含有芳香族樹脂とを含有する、液状組成物。
Patent WO-2022173033-A1 (WO)
Inventor: KAWAGUCHI KENICHI
IPC: C07D519/00
Filed: 2022-02-14
Abstract: 【課題】膵臓癌の治療用医薬組成物の有効成分として有用な化合物を提供する。 【解決手段】本発明者らは、膵臓癌治療用医薬組成物の有効成分として有用な化合物 について検討し、４－アミノキナゾリン化合物が優れたG12D変異KRAS阻害活性を有し 、膵臓癌の治療剤として使用し得ることを知見して、本発明を完成した。本発明の４ －アミノキナゾリン化合物又はその塩は、膵臓癌の治療剤として使用しうる。
Patent WO-2022181499-A1 (WO)
Inventor: HASUO TAKESHI
IPC: F16C33/66
Filed: 2022-02-18
Abstract: 機械は、所定の軸線に沿った軸と、軸を受ける軸受と、軸及び軸受を含んでいて流動性の潤滑剤を貯留可能な潤滑室と、潤滑室の壁面を貫通する開栓可能な三個の貫通孔と、を備え、三個の貫通孔のうちの二個の貫通孔（例えば貫通孔又は貫通孔）は軸線方向で軸受を挟んだ潤滑室の両側の空間の各々にそれぞれ開口し、潤滑剤の注入時は、二個の貫通孔のうちの少なくとも一個の貫通孔が潤滑剤の注入孔として開栓され、潤滑剤の排出時は、二個の貫通孔が通気孔として開栓され、残りの一個の貫通孔（例えば貫通孔）が潤滑剤の排出孔として開栓される。
Patent WO-2022186155-A1 (WO)
Title: Solid electrolyte, and electrode mixture and battery containing the same
Inventor: MIKI JOJI
IPC: H01M10/0525
Filed: 2022-02-28
Abstract: This solid electrolyte contains: elemental lithium (Li); elemental phosphorus (P); elemental sulfur (S); and an element X (X being at least one selected from elemental chlorine (Cl), elemental bromine (Br), and elemental iodine (I)). The solid electrolyte has a peak belonging to elemental fluorine (F), in surface analysis by X-ray photoelectron spectroscopy. It is preferable for the ratio (quantitative value of F1s/quantitative value of P2p) of the quantitative value of F1s (Atom%) and the quantitative value of P2p (Atom%), calculated by X-ray photoelectron spectroscopy where the total amount of Li1s, C1s, O1s, F1s, P2p, S2p, Cl2p, and Br3d is 100%, to be 0.01 to 0.34.
Patent WO-2022234714-A1 (WO)
Title: Method for producing wafer
Inventor: TAGA RYO
IPC: H01L21/683
Filed: 2022-03-03
Abstract: The present invention is a method for producing a wafer, the method including: pressing the wafer by a holding means and bringing a first main surface of the wafer into contact with a resin; pressing and spreading the resin on the first main surface of the wafer in a state in which a second main surface of the wafer is released from holding by the holding means, by blowing air from the holding means between the holding means and the second main surface while pressing and spreading the resin on the first main surface of the wafer; separating the wafer and the holding means while blowing air; after separation of the wafer and the holding means, curing the resin to obtain a composite body including a flattened resin layer; grinding or polishing the second main surface of the wafer with the composite body being chucked using the flattened resin layer as a reference surface; and grinding or polishing the first main surface of the wafer with the second main surface of the wafer being chucked. The present invention thus provides a method for producing a wafer that makes it possible to produce a wafer that has good warp and a favorable nanotopography.