-
公开(公告)号：US10160644B1
公开(公告)日：2018-12-25
申请号：US15918502
申请日：2018-03-12
申请人： Hitachi, Ltd.
发明人： Masaharu Kinoshita , Atsushi Isobe , Kazuo Ono , Noriyuki Sakuma , Tomonori Sekiguchi , Keiji Watanabe
摘要： A manufacturing method of a MEMS sensor includes a step of, by irradiating a first hole formed in a second layer on a semiconductor substrate with a focused ion beam for a first predetermined time, forming a first sealing film, which seals the first hole, on the first hole, and a step of, by irradiating a second hole formed in the second layer with a focused ion beam for a second predetermined time, forming a second sealing film, which seals the second hole, on the second hole. At this time, each of the first predetermined time and the second predetermined time is a time in which thermal equilibrium of the second layer is maintainable, and the step of forming the first sealing film and the step of forming the second sealing film are performed repeatedly.
-
公开(公告)号：US20180238929A1
公开(公告)日：2018-08-23
申请号：US15932213
申请日：2018-02-16
申请人： Hitachi, Ltd.
IPC分类号： G01P15/125 , G01P15/097
摘要： A membrane (mass body) included in an acceleration sensor includes a moving portion, a moving portion electrically separated from the moving portion, and a mechanical junction portion that mechanically connects the moving portion and the moving portion in a y-axis direction. The mechanical junction portion includes a first portion extending in a direction having a first angle with respect to the y-axis direction and a second portion extending in a direction having a second angle different from the first angle with respect to the y-axis direction in an xy plane, and is formed to have a non-linear shape in an x-axis direction.
-
公开(公告)号：US10203688B2
公开(公告)日：2019-02-12
申请号：US15593747
申请日：2017-05-12
申请人： HITACHI, LTD.
发明人： Masaharu Kinoshita , Nobuyuki Sugii , Tomonori Sekiguchi , Shuntaro Machida , Tetsufumi Kawamura
IPC分类号： G06F19/00 , G05B19/4099
摘要： A manufacturing device inputs design information including three-dimensional structure data, generates a manufacturing process flow, and displays the manufacturing process flow on a screen for a user to check, modify, and confirm the flow based on design information and setting information. A process method includes a first process method of a direct modeling method having an FIB method and a second process method of a semiconductor manufacturing process method which is a non-FIB method. The manufacturing device generates a plurality of manufacturing process flows by a combination of cases where each of the process methods is applied to each of the regions of the three-dimensional data. The manufacturing process flow includes a process device, the process method, a control parameter value, a process time, and a total process time for each of process steps. An output unit outputs a manufacturing process flow having, for example, the shortest total process time.
-
公开(公告)号：US11255990B2
公开(公告)日：2022-02-22
申请号：US16646197
申请日：2017-10-25
申请人： HITACHI, LTD.
摘要： An internal structure detection system includes: two kinds of sensors with different operating principles for receiving reflected waves of vibration applied to an inspection target in an investigation area; and a processing apparatus that detects an internal structure of the inspection target by using the sensor data received by the two kinds of sensors. The two kinds of sensors are deployed in the investigation area with different densities, in a distributed manner.
-
公开(公告)号：US09633715B2
公开(公告)日：2017-04-25
申请号：US14890335
申请日：2013-05-31
申请人： Hitachi, Ltd.
IPC分类号： G11C11/419 , G06F7/58 , G06N3/08 , G11C11/16
CPC分类号： G11C11/419 , G06F7/588 , G06N3/08 , G11C7/04 , G11C7/1006 , G11C11/1675
摘要： It is an object of the present invention to provide a device which can be easily manufactured and obtain a ground state of an arbitrary Ising model. A semiconductor device includes a first memory cell and a second memory cell that interacts with the first memory cell, in which storage content of the first memory cell and the second memory cell is stochastically inverted. The storage content is stochastically inverted by dropping threshold voltages of the first memory cell and the second memory cell. The threshold voltages of the first and second memory cells are dropping by controlling substrate biases, power voltages, or trip points of the first and second memory cells.
-
公开(公告)号：US10969295B2
公开(公告)日：2021-04-06
申请号：US16133125
申请日：2018-09-17
申请人： HITACHI, LTD.
摘要： A sensor terminal includes: a vibration sensor; an L-shaped attachment main body portion on which the vibration sensor is mounted and that is detachably attached to a truncated quadrangular pyramid structure portion of a valve cap attached to an opening/closing shaft portion of a water regulating valve provided in a water service pipe; side surface magnets that are provided in the attachment main body portion; and an upper surface magnet that is attached to a lower surface of a base on which the vibration sensor is mounted. Further, the truncated quadrangular pyramid structure portion includes a quadrangular upper surface and four side surfaces, and the attachment main body portion of the sensor terminal is fixed using magnet to each of the upper surface of the truncated quadrangular pyramid structure portion and at least one side surface among the four side surfaces.
-
公开(公告)号：US10935566B2
公开(公告)日：2021-03-02
申请号：US15671340
申请日：2017-08-08
申请人： HITACHI, LTD.
摘要： Provided is an acceleration sensor having a large mass in a movable portion, and realizing high impact resistance. An acceleration sensor element 10a includes an upper substrate 20, a lower substrate 21 spaced apart from the upper substrate 20, and an intermediate substrate 19 provided between the upper substrate 20 and the lower substrate 21. Each of a first movable portion 16, a second movable portion 17, a frame portion 12, a fixed portion 13, and a spring portion 14 constituting the intermediate substrate 19 is configured with two layers of an upper layer and a lower layer, and a stopper portion 18 is provided at one end of the frame portion 12. A distance 31 between an end portion of the first movable portion 16 or the second movable portion 17 and an end portion of the stopper portion 18 in the upper layer and a distance 32 between an end portion of the first movable portion 16 or the second movable portion 17 and an end portion of the stopper portion 18 in the lower layer are different from each other.
-
公开(公告)号：US10802041B2
公开(公告)日：2020-10-13
申请号：US16127268
申请日：2018-09-11
申请人： Hitachi, Ltd.
IPC分类号： G01P15/125 , G01P15/08 , G01P15/18 , G01H11/06
摘要： In an acceleration sensor detecting a vibration acceleration by using torsion of a beam joining a fixed portion and a membrane, a spring constant of the beam is decreased while an increase in a chip size due to extension of the beam is prevented, so that an acceleration sensor that is highly sensitive and small in a size is provided with a low price. A sensor of a capacitance detecting type includes a membrane having a stacking structure formed of two or more layers and a plurality of beams capable of twisting so that the membrane is movable in a detecting direction, a first beam of the plurality of beams is formed of the same layer as either an upper or a lower layer of the membrane, and a second beam thereof is formed of the same layer as either an upper or a lower layer of the movable portion.
-
公开(公告)号：US10697995B2
公开(公告)日：2020-06-30
申请号：US15932213
申请日：2018-02-16
申请人： Hitachi, Ltd.
IPC分类号： G01P15/125 , G01P15/097 , G01P15/08
摘要： An acceleration sensor with an improved membrane (mass body) is provided. The membrane includes a moving portion, a moving portion electrically separated from the moving portion, and a mechanical junction portion that mechanically connects the moving portion and the moving portion in a y-axis direction. The mechanical junction portion includes a first portion extending in a direction having a first angle with respect to the y-axis direction and a second portion extending in a direction having a second angle different from the first angle with respect to the y-axis direction in an xy plane, and is formed to have a non-linear shape in an x-axis direction. The acceleration sensor with improved the membrane stably operates by reducing a variation in a capacity value of a detection electrode and has an excellent noise characteristic.
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.014 秒)
